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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-248133
333-260482

PROSPECTUS SUPPLEMENT
(To prospectus dated August 28, 2020)

$18,000,000

Synchronoss Technologies, Inc.

8.375% Senior Notes due 2026

Synchronoss Technologies, Inc. has entered into an At Market Issuance Sales Agreement, or the Sales Agreement, with B. Riley Securities, Inc., or the Agent, on October 25, 2021, under which we may offer and sell, from time to time, up to an aggregate principal amount of $18,000,000 of our 8.375% Senior Notes due 2026, or the Notes.

The Notes bear interest at a rate of 8.375% per year, payable quarterly in arrears on January 31, April 30, July 31 and October 31 of each year, and at maturity. Interest on the Notes will accrue from the most recent interest payment date immediately preceding the respective dates of issuance of the Notes, except that the Notes purchased after the record dates noted below, but prior to the interest payment date immediately following such record date (or if settlement of a purchase of the Notes otherwise occurs after such record date but prior to the interest payment date immediately following such record date), will not begin to accrue interest until the interest payment date immediately following such record date. The interest payable on each interest payment date will be paid only to the persons in whose names the notes are registered at the close of business on January 15, April 15, July 15 and October 15 (and June 15 immediately preceding the maturity date), as applicable (whether or not a business day), immediately before the relevant interest payment date. The Notes will mature on June 30, 2026.

We may redeem the Notes for cash in whole or in part at any time at our option (i) on or after June 30, 2022 and prior to June 30, 2023, at a price equal to $25.75 per note, plus accrued and unpaid interest to, but excluding, the date of redemption, (ii) on or after June 30, 2023 and prior to June 30, 2024, at a price equal to $25.50 per note, plus accrued and unpaid interest to, but excluding, the date of redemption, (iii) on or after June 30, 2024 and prior to June 30, 2025, at a price equal to $25.25 per note, plus accrued and unpaid interest to, but excluding, the date of redemption, and (iv) on or after June 30, 2025 and prior to maturity, at a price equal to 100% of their principal amount, plus accrued and unpaid interest to, but excluding, the date of redemption. See “Description of the Notes — Optional Redemption.” The Notes will be issued in denominations of $25 and in integral multiples thereof.

The up to $18,000,000 in aggregate principal amount of the Notes that we may offer and sell under this prospectus supplement and the accompanying prospectus constitutes a further issuance of and are fungible with the $125.0 million in aggregate principal amount of the 8.375% Senior Notes due 2026 that we have issued to date, or the Initial 2026 Notes, and form a single series of debt securities with the Initial 2026 Notes. Unless the context requires otherwise, references to the “Notes” will not include the Initial 2026 Notes. The Notes will have terms identical to the Initial 2026 Notes, and will have the same CUSIP number as, and will be fungible and vote together with, the Initial 2026 Notes immediately upon issuance.

The Notes will be our senior unsecured obligations and will rank equal in right of payment with all of our existing and future senior unsecured and unsubordinated indebtedness. The Notes will be effectively subordinated in right of payment to all of our existing and future secured indebtedness, and the Notes will be structurally subordinated to all existing and future indebtedness (including trade payables) of our subsidiaries.

The Notes (when issued) and the Initial 2026 Notes are listed and trade on The Nasdaq Global Market, or Nasdaq, under the symbol “SNCRL”. The Notes trade “flat.” This means that purchasers will not pay, and sellers will not receive, any accrued and unpaid interest on the Notes that is not included in the trading price. On October 25, 2021, the last reported sale price per $25 principal amount of Initial 2026 Notes was $24.28.

Sales of the Notes, if any, under this prospectus supplement and the accompanying prospectus may be made in transactions that are deemed to be “at the market offerings” as defined in Rule 415 under the Securities Act of 1933, as amended, or the Securities Act. The Agent is not required to sell any specific number of the Notes, but the Agent will make all sales using commercially reasonable efforts consistent with its normal trading and sales practices on mutually agreed terms between the Agent and us. See “Plan of Distribution.”

The securities to which this prospectus supplement and the accompanying prospectus relate will be offered and sold through the Agent over a period of time and from time to time. Under the Sales Agreement, the Agent will be entitled to compensation of up to 2.0% of the gross proceeds of all Notes sold through it as our agent. In connection with the sale of the Notes on our behalf, the Agent will be deemed to be an “underwriter” within the meaning of the Securities Act, and the compensation of the Agent will be deemed to be underwriting commissions or discounts. There is no arrangement to place proceeds of the offering in escrow, trust or similar arrangement. See “Plan of Distribution.”

Delivery of the Notes in book-entry form only through The Depository Trust Company will be made on or about the second trading date following the date of purchase.

Investing in our Notes involves a high degree of risk, and you should read this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein before you make your investment decision. Before investing in our Notes, you should carefully consider the risk factors described in the section titled “Risk Factors” beginning on page S-7 of this prospectus supplement as well as the risks identified in our most recent Annual Report on Form 10-K and any other filings we make with the Securities and Exchange Commission (the “SEC”) from time to time, which are incorporated by reference in this prospectus supplement.

Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

B. Riley Securities

The date of this prospectus supplement is October 25, 2021.

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Prospectus Supplement

	Page
ABOUT THIS PROSPECTUS SUPPLEMENT		S-1
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS		S-2
PROSPECTUS SUPPLEMENT SUMMARY		S-3
THE OFFERING		S-4
RISK FACTORS		S-7
USE OF PROCEEDS		S-12
DESCRIPTION OF THE NOTES		S-13
PLAN OF DISTRIBUTION (Conflict of Interest)		S-30
U.S. FEDERAL INCOME TAX CONSIDERATIONS		S-24
LEGAL MATTERS		S-32
EXPERTS		S-32
INFORMATION INCORPORATED BY REFERENCE		S-32
WHERE YOU CAN FIND MORE INFORMATION		S-33

Prospectus

	Page
ABOUT THIS PROSPECTUS		ii
PROSPECTUS SUMMARY		1
RISK FACTORS		4
FORWARD-LOOKING STATEMENTS		4
USE OF PROCEEDS		5
DESCRIPTION OF SECURITIES WE MAY OFFER		6
DESCRIPTION OF SECURITIES		6
DESCRIPTION OF DEBT SECURITIES AND GUARANTEES		11
DESCRIPTION OF WARRANTS		19
DESCRIPTION OF UNITS		21
LEGAL OWNERSHIP OF SECURITIES		22
PLAN OF DISTRIBUTION		25
LEGAL MATTERS		28
EXPERTS		28
WHERE YOU CAN FIND MORE INFORMATION		28
INFORMATION INCORPORATED BY REFERENCE		29

Neither we nor the Agent has authorized anyone to provide you with information other than the information contained in this prospectus supplement and the accompanying prospectus, including the information incorporated by reference herein and therein as described under “Information Incorporated by Reference,” or any free writing prospectus that we prepare and distribute. Neither we nor the Agent take any responsibility for, or provide any assurance as to the reliability of, any other information that others may give you. This prospectus supplement, the accompanying prospectus and any such free writing prospectus may be used only for the purposes for which they have been published. You should not assume that the information contained in or incorporated by reference into this prospectus supplement is accurate as of any date other than the date on the cover page of this prospectus supplement. Neither we nor the Agent are making an offer of these securities in any jurisdiction where the offer is not permitted.

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The distribution of this prospectus supplement and the accompanying prospectus and the offering or sale of these securities in some jurisdictions may be restricted by law. Persons outside of the United States who come into possession of this prospectus supplement and the accompanying prospectus are required by us and the Agent to inform themselves about and to observe any applicable restrictions. This prospectus supplement and the accompanying prospectus may not be used for or in connection with an offer or solicitation by any person in any jurisdiction in which that offer or solicitation is not authorized or to any person to whom it is unlawful to make that offer or solicitation.

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ABOUT THIS PROSPECTUS SUPPLEMENT

This prospectus supplement and the accompanying prospectus are part of a shelf registration statement on Form S-3 (File No. 333-248133) that we filed with the Securities and Exchange Commission, or SEC, on August 19, 2020 and that was declared effective by the SEC on August 28, 2020, pursuant to which we may from time to time offer various securities in one or more offerings, and a related registration statement (File No. 333-260482 ) filed on October 25 , 2021 in accordance with Rule 462(b) under the Securities Act of 1933, as amended (the “Securities Act”). This document is in two parts. The first part is this prospectus supplement, including the documents incorporated by reference, which describes the specific terms of this offering. The second part, the accompanying prospectus, including the documents incorporated by reference, provides more general information. Generally, when we refer to this prospectus, we are referring to both parts of this document combined. We urge you to carefully read this prospectus supplement and the accompanying prospectus, and the documents incorporated by reference herein and therein, before buying any of the securities being offered under this prospectus supplement. This prospectus supplement may add or update information contained in the accompanying prospectus and the documents incorporated by reference therein. To the extent that any statement we make in this prospectus supplement is inconsistent with statements made in the accompanying prospectus or any documents incorporated by reference therein that were filed before the date of this prospectus supplement, the statements made in this prospectus supplement will be deemed to modify or supersede those made in the accompanying prospectus and such documents incorporated by reference therein.

You should rely only on the information contained in this prospectus supplement and the accompanying prospectus, or incorporated by reference herein or therein. Neither we nor the Agent have authorized anyone to provide you with different information. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus supplement and the accompanying prospectus. You should not rely on any unauthorized information or representation. This prospectus supplement is an offer to sell only the securities offered hereby, and only under circumstances and in jurisdictions where it is lawful to do so. You should assume that the information in this prospectus supplement and the accompanying prospectus is accurate only as of the date on the front of the applicable document and that any information we have incorporated by reference is accurate only as of the date of the document incorporated by reference, regardless of the date of delivery of this prospectus supplement or the accompanying prospectus, or any sale of a security.

As used in this prospectus, unless the context indicates or otherwise requires, “the Company,” “Synchronoss,” “we,” “us” or “our” refer to the combined business of Synchronoss Technologies, Inc. and its consolidated subsidiaries.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement, the accompanying prospectus and the information incorporated by reference herein and therein contain forward-looking statements within the meaning of Section 27A of the Securities Act, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the forward-looking statements. Forward-looking statements may include, but are not limited to, statements relating to our anticipated use of the net proceeds from this offering, concurrent private placement, or the sale of the Notes. You should not place undue reliance on these statements. Forward-looking statements include words such as “expect,” “intend,” “plan,” “likely,” “seek,” “believe,” “project,” “forecast,” “target,” “goal,” “potential,” “estimate,” “may,” “might,” “will,” “would,” “should,” “could,” “can,” “have,” “due,” “anticipate,” “assume,” “contemplate,” “continue” and other words and terms of similar meaning in connection with any discussion of the timing or nature of future operational performance or other events. The statements we make regarding the following subject matters are forward-looking by their nature: plans, objectives, expectations and intentions and other factors discussed in “Risk Factors” contained in this prospectus supplement.

This prospectus supplement and the information incorporated by reference in this prospectus supplement also contain statements that are based on the current expectations of our company and management. You are cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, and that actual results may differ materially from those projected in the forward-looking statements as a result of various factors.

Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, you should not rely upon forward-looking statements as predictions of future events. The events and circumstances reflected in the forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. The risks, uncertainties and assumptions that could cause actual results to differ materially from those anticipated or implied in our forward-looking statements include, but are not limited to, those set forth below under the section entitled “Risk Factors”, together with all of the other information contained in or incorporated by reference into this prospectus supplement or appearing or incorporated by reference into this prospectus supplement.

Except as required by applicable law, including the securities laws of the United States and the rules and regulations of the SEC, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events or otherwise.

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PROSPECTUS SUPPLEMENT SUMMARY

The following summary is qualified in its entirety by, and should be read together with, the more detailed information and financial statements and related notes thereto appearing elsewhere or incorporated by reference in this prospectus supplement and the accompanying prospectus. Before you decide to invest in our Notes, you should read the entire prospectus supplement and the accompanying prospectus carefully, including the risk factors and the financial statements and related notes incorporated by reference in this prospectus supplement and the accompanying prospectus.

Our Business

We are a global software and services company that provides essential technologies for the mobile transformation of business. Our portfolio contains offerings such as personal cloud, secure-mobility, identity management and scalable messaging platforms, products and solutions. These essential technologies create a better way of delivering the transformative mobile experiences that our customers need to help them stay ahead of the curve in competition, innovation, productivity, growth and operational efficiency.

Our products and platforms are designed to be carrier-grade, flexible and scalable, to enable multiple converged communication services to be managed across a range of distribution channels including e-commerce, m-commerce, telesales, customer stores, indirect and other retail outlets. This business model allows us to support the rapidly changing converged services and connected devices offered by our customers. Our products, platforms and solutions enable our customers to acquire, retain and service subscribers and employees quickly, reliably and cost-effectively with white label and custom-branded solutions. Our customers can simplify the processes associated with managing their customer experience for procuring, activating, connecting, backing-up, synchronizing and sharing/collaboration with connected devices and contents from these devices and associated services. The extensibility, scalability, reliability and relevance of our platforms enable new revenue streams and retention opportunities for their customers through new subscriber acquisitions, sale of new devices, accessories and new value-added service offerings in the Cloud. By using our technologies, our customers can optimize their cost of operations while enhancing their customer experience.

We currently operate in and market our solutions and services directly through our sales organizations in North America, Europe and Asia-Pacific.

Corporate Information

Our common stock is traded on Nasdaq under the symbol “SNCR.” The Initial 2026 Notes are traded on Nasdaq under the symbol “SNCRL”. We were incorporated in Delaware in 2000. Our principal executive offices are located at 200 Crossing Blvd., Bridgewater, NJ 08807. Our main telephone number is (866) 620-3940. Our internet website is located at http://www.synchronoss.com. Information contained on our website is not part of the registration statement of which this prospectus supplement is a part.

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THE OFFERING

The following is a brief summary of some of the terms of the offering and is qualified in its entirety by reference to the more detailed information appearing elsewhere in this prospectus supplement and the accompanying prospectus. For a more complete description of the terms of the Notes, see the “Description of the Notes” section in this prospectus supplement.

Issuer

Synchronoss Technologies, Inc.

Notes Offered

Up to $18,000,000 aggregate principal amount of 8.375% Senior Notes due 2026.

The Notes offered hereby are a further issuance of, form a single series with and will have the same terms as the Initial 2026 Notes.

Use of Proceeds

We anticipate using the net proceeds from this offering for working capital and other general corporate purposes. We may also use a portion of the net proceeds to pay off future indebtedness, if any, and/or acquire or invest in complementary businesses, products and technologies. Further, from time to time we may evaluate acquisition opportunities and engage in related discussions with other companies. See “Use of Proceeds.”

Manner of offering

“At the market” offering that may be made from time to time through the Agent, as sales agent, subject to our instruction as to amount and timing. The Agent is not required to sell any specific principal amount of the Notes, but the Agent will make all sales using commercially reasonable efforts consistent with its normal trading and sales practices on mutually agreed terms between the Agent and us. See “Plan of Distribution.”

Maturity Date

The Notes will mature on June 30, 2026, unless redeemed prior to maturity.

Interest Rate and
Payment Dates

8.375% per year on the principal amount of the Notes, payable quarterly in arrears on January 31, April 30, July 31 and October 31 of each year, and at maturity. Interest on the Notes will accrue from the most recent interest payment date immediately preceding the date of issuance of the Notes, except that the Notes purchased after the record dates noted below, but prior to the interest payment date immediately following such record date (or if settlement of a purchase of the Notes otherwise occurs after such record date but prior to the interest payment date immediately following such record date), will not begin to accrue interest until the interest payment date immediately following such record date. The interest payable on each interest payment date will be paid only to the persons in whose names the notes are registered at the close of business on January 15, April 15, July 15 and October 15 (and June 15 immediately preceding the maturity date), as applicable (whether or not a business day), immediately before the relevant interest payment date.

Guarantors

None.

Ranking

The Notes will be our senior unsecured obligations and will rank equal in right of payment with all of our existing and future senior unsecured and unsubordinated indebtedness. The Notes will be effectively subordinated to all of our existing and future secured indebtedness to the extent of the value of the assets securing such

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indebtedness. The Notes will be structurally subordinated to all existing and future indebtedness (including trade payables) of our subsidiaries.

The indenture governing the Notes does not limit the amount of indebtedness that we or our subsidiaries may incur or whether any such indebtedness can be secured by our assets.

Optional Redemption

Sinking Fund

The Notes will not be subject to any sinking fund (i.e., no amounts will be set aside by us to ensure repayment of the Notes at maturity).

Events of Default

Events of default generally will include failure to pay principal, failure to pay interest, failure to observe or perform any other covenant or warranty in the Notes or in the indenture, and certain events of bankruptcy, insolvency or reorganization. See “Description of the Notes — Events of Default.”

Certain Covenants

The indenture that governs the Notes contains certain covenants, including, but not limited to, restrictions on our ability to merge or consolidate with or into any other entity. See “Description of the Notes — Covenants.”

No Financial Covenants

The indenture relating to the Notes does not contain financial covenants.

Additional Notes

We may create and issue additional notes ranking equally and ratably with the Notes and the Initial 2026 Notes in all respects, so that such additional notes will constitute and form a single series with the Notes and will have the same terms as to status, redemption or otherwise (except the price to public, the issue date and, if applicable, the initial interest accrual date and the initial interest payment date) as the Notes and the Initial 2026 Notes; provided that if any such additional notes are not fungible with the Notes and the Initial 2026 Notes for U.S. federal income tax purposes, such additional notes will have one or more separate CUSIP numbers.

Defeasance

The Notes are subject to legal and covenant defeasance by us. See “Description of the Notes — Defeasance” for more information.

Listing

The Notes, when issued, are traded on The Nasdaq Global Market under the symbol “SNCRL”.

Form and Denomination

The Notes will be issued in book-entry form in denominations of $25 and integral multiples thereof. The Notes will be represented by a permanent global certificate deposited with the trustee as custodian for The Depository Trust Company (“DTC”) and

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registered in the name of a nominee of DTC. Beneficial interests in any of the Notes will be shown on, and transfers will be effected only through, records maintained by DTC and its direct and indirect participants and any such interest may not be exchanged for certificated securities, except in limited circumstances.

Trustee

The Bank of New York Mellon Trust Company, N.A.

Governing Law

The Indenture and the Notes will be governed by and construed in accordance with the laws of the State of New York.

Conflicts of Interest

The Agent, a wholly-owned subsidiary of our largest shareholder, will act as sales agent in connection with the offering of the Notes. Therefore, the Agent has a “conflict of interest” in this offering within the meaning of Rule 5121 of the Financial Industry Regulatory Authority (“FINRA”), and this offering will be conducted in accordance with FINRA Rule 5121. The Agent may not make sales of Notes in this offering to any of its discretionary accounts without the prior written approval of the account holder.

Risk Factors

An investment in the Notes involves significant risks. Please refer to “Risk Factors” beginning on page S-7 and other information included or incorporated by reference in this prospectus supplement and the accompanying prospectus for a discussion of factors you should carefully consider before investing in the Notes.

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RISK FACTORS

An investment in our Notes involves a high degree of risk, including the risks described below and discussed under the section captioned “Risk Factors” contained in our Annual Report on Form 10-K for the year ended December 31, 2020, and our quarterly report on Form 10-Q for the quarter ended June 30, 2021, each of which is incorporated by reference in this prospectus supplement and the accompanying prospectus, together with other information in this prospectus supplement, the accompanying prospectus, and the information and documents incorporated by reference herein and therein. If any of these risks actually occurs, our business, financial condition, results of operations or cash flow could be seriously harmed. This could cause the trading price of our Notes to decline, resulting in a loss of all or part of your investment.

Risks Related to this Offering

We may be able to incur substantially more debt, which could have important consequences to you.

We may be able to incur substantial additional indebtedness in the future. The terms of the indenture governing the Notes does not prohibit us from doing so. If we incur any additional indebtedness that ranks equally with the Notes, the holders of that debt will be entitled to share ratably with you in any proceeds distributed in connection with any insolvency, liquidation, reorganization or dissolution. This may have the effect of reducing the amount of proceeds paid to you. Incurrence of additional debt would also further reduce the cash available to invest in operations, as a result of increased debt service obligations. If new debt is added to our current debt levels, the related risks that we now face could intensify.

Prior to giving effect to the issuance of the Notes offered hereby, there was $125 million of aggregate principal outstanding on the Initial 2026 Notes as of June 30, 2021.

Our level of indebtedness could have important consequences to you, because:

•

it could affect our ability to satisfy our financial obligations, including those relating to the Notes;

•

a substantial portion of our cash flows from operations would have to be dedicated to interest and principal payments and may not be available for operations, capital expenditures, expansion, acquisitions or general corporate or other purposes;

•

it may impair our ability to obtain additional debt or equity financing in the future;

•

it may limit our ability to refinance all or a portion of our indebtedness on or before maturity;

•

it may limit our flexibility in planning for, or reacting to, changes in our business and industry; and

•

it may make us more vulnerable to downturns in our business, our industry or the economy in general.

Our operations may not generate sufficient cash to enable us to service our debt. If we fail to make a payment on the Notes, we could be in default on the Notes, and this default could cause us to be in default on other indebtedness, to the extent outstanding. Conversely, a default under any other indebtedness, if not waived, could result in acceleration of the debt outstanding under the related agreement and entitle the holders thereof to bring suit for the enforcement thereof or exercise other remedies provided thereunder. In addition, such default or acceleration may result in an event of default and acceleration of other indebtedness of the Company, entitling the holders thereof to bring suit for the enforcement thereof or exercise other remedies provided thereunder. If a judgment is obtained by any such holders, such holders could seek to collect on such judgment from the assets of the Company. If that should occur, we may not be able to pay all such debt or to borrow sufficient funds to refinance it. Even if new financing were then available, it may not be on terms that are acceptable to us.

However, no event of default under the Notes would result from a default or acceleration of, or suit, other exercise of remedies or collection proceeding by holders of, our other outstanding debt, if any. As a result, all or substantially all of our assets may be used to satisfy claims of holders of our other outstanding debt, if any, without the holders of the Notes having any rights to such assets. The indenture governing the Notes does not restrict our ability to incur additional indebtedness.

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We are subject to investigations relating to certain transactions in 2015 and 2016 that resulted in the restatement of our financial statements in 2018, and the Securities and Exchange Commission staff has preliminarily determined to recommend the initiation of an enforcement action against us in connection with that matter.

On June 22, 2021, the SEC staff verbally notified us that it has made a preliminary determination to recommend that the SEC initiate an enforcement action against us in connection with certain financial transactions that we effected in 2015 and 2016 and our disclosure of and accounting for such transactions, which we restated in the third quarter of 2018 in our restated annual and quarterly financial statements for 2015 and 2016. That restatement followed our announcement, on June 13, 2017 (the “June 2017 Announcement”), that certain of our prior financial statements would need to be restated. Certain individuals, including certain former members of our management team, received similar notifications. We remain in discussions with the SEC staff regarding the prospect of resolving this matter through settlement. If we are unable to resolve this matter through settlement then we would expect to receive a “Wells notice” from the SEC staff in connection with this matter. Although a Wells notice is neither a formal charge of wrongdoing nor a final determination that the recipient has violated any law, it is a formal notice that the SEC intends to bring an enforcement action against the recipient. Upon receipt of a Wells notice, the recipient has the opportunity to respond to the SEC staff’s position before any formal enforcement action is taken.

In the third quarter of 2017, the SEC and Department of Justice initiated investigations in connection with the June 2017 Announcement and certain transactions that we restated in the third quarter of 2018. We have received subpoenas, produced documents, and provided additional information to the government in connection with those investigations.

At this time, we cannot predict with certainty what the outcome of these government investigations or the SEC staff’s preliminary determination might be, but they could have a material adverse impact on our financial position, prospects, and results of operations.

The Notes will be unsecured and therefore will be effectively subordinated to any secured indebtedness that we currently have or that we may incur in the future.

The Notes will not be secured by any of our assets or any of the assets of our subsidiaries. As a result, the Notes will be effectively subordinated to any secured indebtedness that we or our subsidiaries have currently outstanding or may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. The indenture governing the Notes does not prohibit us or our subsidiaries from incurring additional secured (or unsecured) indebtedness in the future. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness and may consequently receive payment from these assets before they may be used to pay other creditors, including the holders of the Notes.

The Notes will be structurally subordinated to the indebtedness and other liabilities of our subsidiaries.

The Notes are obligations exclusively of Synchronoss Technologies, Inc. and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. Therefore, in any bankruptcy, liquidation or similar proceeding, all claims of creditors (including trade creditors) of our subsidiaries will have priority over our equity interests in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes will be structurally subordinated to all indebtedness and other liabilities (including trade payables) of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish as financing vehicles or otherwise. The indenture governing the Notes will not prohibit us or our subsidiaries from incurring additional indebtedness in the future. In addition, future debt and security agreements entered into by our subsidiaries may contain various restrictions, including restrictions on payments by our subsidiaries to us and the transfer by our subsidiaries of assets pledged as collateral.

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The indenture under which the Notes will be issued contains limited protection for holders of the Notes.

The indenture under which the Notes will be issued offers limited protection to holders of the Notes. The terms of the indenture and the Notes will not restrict our or any of our subsidiaries’ ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have an adverse impact on your investment in the Notes. In particular, the terms of the indenture and the Notes will not place any restrictions on our or our subsidiaries’ ability to:

•

issue debt securities or otherwise incur additional indebtedness or other obligations, including (1) any indebtedness or other obligations that would be equal in right of payment to the Notes, (2) any indebtedness or other obligations that would be secured and therefore rank effectively senior in right of payment to the Notes to the extent of the values of the assets securing such debt, (3) indebtedness of ours that is guaranteed by one or more of our subsidiaries and which therefore is structurally senior to the Notes and (4) securities, indebtedness or obligations issued or incurred by our subsidiaries that would be senior to our equity interests in our subsidiaries and therefore rank structurally senior to the Notes with respect to the assets of our subsidiaries;

•

pay dividends on, or purchase or redeem or make any payments in respect of, capital stock or other securities subordinated in right of payment to the Notes;

•

sell assets (other than certain limited restrictions on our ability to consolidate, merge or sell all or substantially all of our assets);

•

enter into transactions with affiliates;

•

create liens (including liens on the shares of our subsidiaries) or enter into sale and leaseback transactions;

•

make investments; or

•

create restrictions on the payment of dividends or other amounts to us from our subsidiaries.

In addition, the indenture does not include any protection against certain events, such as a change of control, a leveraged recapitalization or “going private” transaction (which may result in a significant increase of our indebtedness levels), restructuring or similar transactions. Furthermore, the terms of the indenture and the Notes will not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow, or liquidity. Also, an event of default or acceleration under our other indebtedness would not necessarily result in an Event of Default under the Notes.

Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you as a holder of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.

Other debt we issue or incur in the future could contain more protections for its holders than the indenture and the Notes, including additional covenants and events of default. The issuance or incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes.

An increase in market interest rates could result in a decrease in the value of the Notes.

In general, as market interest rates rise, notes bearing interest at a fixed rate decline in value. Consequently, if you purchase the Notes, and the market interest rates subsequently increase, the market value of your Notes may decline. We cannot predict the future level of market interest rates.

An active trading market for the Notes may not develop or be maintained, which could limit the market price of the Notes or your ability to sell them.

The Notes, when issued, are listed on Nasdaq under the symbol “SNCRL.” We cannot provide any assurances that an active trading market will develop or be maintained for the Notes or that you will be able

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to sell your Notes. The Notes may trade at a discount from their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, general economic conditions, our financial condition, performance and prospects and other factors. Accordingly, we cannot assure you that a liquid trading market will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop or is not maintained, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.

In addition, there may be a limited number of buyers when you decide to sell your Notes. This may affect the price, if any, offered for your Notes or your ability to sell your Notes when desired or at all.

We may issue additional notes.

Under the terms of the indenture governing the Notes, we may from time to time without notice to, or the consent of, the holders of the Notes, create and issue additional notes ranking equally and ratably with the Notes in all respects, so that such additional notes will constitute and form a single series with the Notes and will have the same terms as to status, redemption or otherwise (except the price to public, the issue date and, if applicable, the initial interest accrual date and the initial interest payment date); provided that if any such additional notes are not fungible with the Notes initially offered hereby for U.S. federal income tax purposes, such additional notes will have one or more separate CUSIP numbers.

The rating for the Notes could at any time be revised downward or withdrawn entirely at the discretion of the issuing rating agency.

We have obtained a rating for the Notes. Ratings only reflect the views of the issuing rating agency or agencies and such ratings could at any time be revised downward or withdrawn entirely at the discretion of the issuing rating agency. A rating is not a recommendation to purchase, sell or hold the Notes. Ratings do not reflect market prices or suitability of a security for a particular investor and the rating of the Notes may not reflect all risks related to us and our business, or the structure or market value of the Notes. We may elect to issue other securities for which we may seek to obtain a rating in the future. If we issue other securities with a rating, such ratings, if they are lower than market expectations or are subsequently lowered or withdrawn, could adversely affect the market for or the market value of the Notes.

B. Riley Securities, Inc., the Agent selling the Notes, and its affiliates (collectively “BRS”) have significant influence over us and may have conflicts of interest that arise out of future contractual relationships it or its affiliates may have with us.

As of June 30, 2021, BRS owned 19.2% of our outstanding common stock and all of our Series B Preferred Stock. As a result, BRS holds significant influence over us as a significant shareholder. In addition, for so long as BRS and its affiliates beneficially own at least 10% of our outstanding common stock, BRS has the right to nominate one member of our board of directors pursuant to an investor rights agreement.

As a result, BRS has significant influence over our management and policies and over all matters requiring shareholder approval, including the election of directors, amendment of our certificate of incorporation and approval of significant corporate transactions. Given BRS’s significant influence on matters requiring stockhholder approval, they could have the ability to control the outcome of that matter, including having the effect of delaying or preventing a change of control of us or discouraging others from making tender offers for our shares, which could prevent shareholders from receiving a premium for their shares. These actions may be taken even if other shareholders oppose them.

The actual aggregate principal amount of Notes we will issue in this offering, at any one time or in total, is uncertain.

Subject to certain limitations set forth in the Sales Agreement with the Agent and compliance with applicable law, we have the discretion to deliver placement notices to the Agent at any time throughout the term of the Sales Agreement. The aggregate principal amount of Notes that are sold by the Agent after we

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deliver a placement notice will fluctuate based on the market price of the Notes during the sales period and the limits we set with the Agent.

We will have broad discretion in the use of the net proceeds from this offering and, despite our efforts, we may use the net proceeds in a manner that does not increase the value of your investment.

Our management will have broad discretion over the use of proceeds from this offering. We intend to use the net proceeds from the sale of the Notes in this offering for working capital and other general corporate purposes. We may also use a portion of the net proceeds to pay off future indebtedness, if any, and/or acquire or invest in complementary businesses, products and technologies. Further, from time to time we may evaluate acquisition opportunities and engage in related discussions with other companies. We retain broad discretion over the use of the net proceeds from the sale of the Notes and, accordingly, you will need to rely upon the judgment of our board of directors and management with respect to the use of proceeds, potentially with only limited information concerning our specific intentions. These proceeds could be applied in ways that do not improve our operating results or increase the value of your investment.

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USE OF PROCEEDS

We will retain broad discretion over the use of the net proceeds from the sale of our Notes offered hereby. Except as described in any free writing prospectus that we may authorize to be provided to you, we currently anticipate using the net proceeds from the sale of our Notes offered hereby primarily for working capital and other general corporate purposes. We may also use a portion of the net proceeds to pay off future indebtedness, if any, and/or acquire or invest in complementary businesses, products and technologies. Further, from time to time we may evaluate acquisition opportunities and engage in related discussions with other companies. We do not currently have any intentions with respect to paying off outstanding indebtedness or the acquisition of or investment in complementary businesses, products or technologies.

The amounts and timing of our use of the net proceeds from this offering, if any, will depend on a number of factors, including the amount of cash generated or used by our operations, and the rate of growth, if any, of our business. As of the date of this prospectus supplement, we cannot specify with certainty all of the particular uses for the net proceeds to us from this offering. Accordingly, our management will have broad discretion in the timing and application of these proceeds.

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DESCRIPTION OF THE NOTES

The 8.375% Senior Notes due 2026 (the “Notes”) are being issued under an Indenture dated as of June 30, 2021, as supplemented by the First Supplemental Indenture dated as of June 30, 2021, which we refer to collectively as the “indenture,” between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. Set forth below is a description of the specific terms of the Notes and the indenture. This description supplements and, to the extent inconsistent with, supersedes and replaces the description of the general terms and provisions of our debt securities set forth in the accompanying prospectus under the caption “Description of Debt Securities.” The following description does not purport to be complete and is subject to, and is qualified in its entirety by reference to, the indenture filed as an exhibit to a Current Report on Form 8-K to be filed by the Company.

General

The Notes:

•

will be our general unsecured, senior obligations;

•

will constitute a further issuance of and are fungible with the $125.00 million in aggregate principal amount of the initial 8.375% Senior Notes due 2026, or Initial 2026 Notes, and form a single series of debt securities with the Initial 2026 Notes;

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will mature on June 30, 2026 unless earlier redeemed or repurchased, and 100% of the aggregate principal amount will be paid at maturity;

•

will bear cash interest at an annual rate of 8.375%, payable quarterly in arrears on January 31, April 30, July 31 and October 31 of each year, and at maturity;

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will be redeemable at our option, in whole or in part, at any time on or after June 30, 2022, at the prices and on the terms described under “— Optional Redemption” below;

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will be issued in denominations of $25 and integral multiples of $25 in excess thereof;

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will not have a sinking fund;

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when issued, are listed on Nasdaq under the symbol “SNCRL”; and

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will be represented by one or more registered Notes in global form, but in certain limited circumstances may be represented by Notes in definitive form.

The indenture does not limit the amount of indebtedness that we or our subsidiaries may issue. The indenture does not contain any financial covenants and will not restrict us from paying dividends or issuing or repurchasing our other securities. Other than restrictions described under “— Covenants — Merger, Consolidation or Sale of Assets” below, the indenture does not contain any covenants or other provisions designed to afford holders of the Notes protection in the event of a takeover, recapitalization, highly leveraged transaction or similar restructuring involving us that could adversely affect such holders.

We may from time to time, without the consent of the existing holders, issue additional notes ranking equally and ratably with the Notes in all respects, so that such additional notes will constitute and form a single series with the Notes and will have the same terms as to status, redemption or otherwise (except the price to public, the issue date and, if applicable, the initial interest accrual date and the initial interest payment date); provided that if any such additional notes are not fungible with the Notes and the Initial 2026 Notes for U.S. federal income tax purposes, such additional notes will have one or more separate CUSIP numbers.

Ranking

The Notes are senior unsecured obligations of the Company, and, upon our liquidation, dissolution or winding up, will rank (i) senior to the outstanding shares of our common stock, (ii) senior to any of our future subordinated debt, (iii) pari passu (or equally) with our future unsecured and unsubordinated indebtedness, (iv) effectively subordinated to any existing or future secured indebtedness (including indebtedness that is initially unsecured to which we subsequently grant security), to the extent of the value

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of the assets securing such indebtedness and (v) structurally subordinated to all existing and future indebtedness of our subsidiaries, financing vehicles or similar facilities.

Interest

Interest on the Notes will accrue at an annual rate equal to 8.375%, payable quarterly in arrears on January 31, April 30, July 31 and October 31 of each year and at maturity. Interest on the Notes will accrue from the most recent interest payment date immediately preceding the respective dates of issuance of the Notes, except that the Notes purchased after the record dates noted below, but prior to the interest payment date immediately following such record date (or if settlement of a purchase of the Notes otherwise occurs after such record date but prior to the interest payment date immediately following such record date), will not begin to accrue interest until the interest payment date immediately following such record date. The interest payable on each interest payment date will be paid only to the persons in whose names the notes are registered at the close of business on January 15, April 15, July 15 or October 15 (and June 15 immediately preceding the maturity date) as applicable (whether or not a business day), immediately before the relevant interest payment date.

The interest periods will be the periods from and including an interest payment date to, but excluding, the next interest payment date or the stated maturity date, as the case may be. The amount of interest payable for any interest period, including interest payable for any partial interest period, will be computed on the basis of a 360-day year comprised of twelve 30-day months. If an interest payment date falls on a non-business day, the applicable interest payment will be made on the next business day and no additional interest will accrue as a result of such delayed payment.

“Business day” means, for any place where the principal and interest on the Notes is payable, each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day in which banking institutions in the city of New York are authorized or obligated by law, regulation or executive order to close.

Optional Redemption

The Notes may be redeemed for cash in whole or in part at any time at our option (i) on or after June 30, 2022 and prior to June 30, 2023, at a price equal to $25.75 per note, plus accrued and unpaid interest to, but excluding, the date of redemption, (ii) on or after June 30, 2023 and prior to June 30, 2024, at a price equal to $25.50 per note, plus accrued and unpaid interest to, but excluding, the date of redemption, (iii) on or after June 30, 2024 and prior to June 30, 2025, at a price equal to $25.25 per note, plus accrued and unpaid interest to, but excluding, the date of redemption, and (iv) on or after June 30, 2025 and prior to maturity, at a price equal to 100% of their principal amount, plus accrued and unpaid interest to, but excluding, the date of redemption. In each case, redemption shall be upon notice not fewer than 30 days and not more than 60 days prior to the date fixed for redemption.

If less than all of the Notes are to be redeemed, the particular Notes to be redeemed will be selected not more than 45 days prior to the redemption date by the trustee from the outstanding Notes not previously called for redemption, by lot, or in the trustee’s discretion, on a pro-rata basis, provided that the unredeemed portion of the principal amount of any Notes will be in an authorized denomination (which will not be less than the minimum authorized denomination) for such Notes. The trustee will promptly notify us in writing of the Notes selected for redemption and, in the case of any Notes selected for partial redemption, the principal amount thereof to be redeemed. Beneficial interests in any of the Notes or portions thereof called for redemption that are registered in the name of DTC or its nominee will be selected by DTC in accordance with DTC’s applicable procedures.

Unless we default on the payment of the redemption price, on and after the date of redemption, interest will cease to accrue on the Notes called for redemption.

Events of Default

Holders of our Notes will have rights if an Event of Default occurs in respect of the Notes and is not cured, as described later in this subsection. The term “Event of Default” in respect of the Notes means any of the following:

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we do not pay interest on any Note when due, and such default is not cured within 30 days;

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we do not pay the principal of the Notes when due and payable;

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we breach any covenant or warranty in the indenture with respect to the Notes and such breach continues for 60 days after we receive a written notice of such breach from the trustee or the holders of at least 25% of the principal amount of the Notes; and

•

certain specified events of bankruptcy, insolvency or reorganization occur and remain undischarged or unstayed for a period of 90 days.

The trustee may withhold notice to the holders of the Notes of any default, except in the payment of principal or interest, if the trustee in good faith determines the withholding of notice to be in the interest of the holders of the Notes.

Each year, we will furnish to the trustee a written statement of certain of our officers certifying that to their knowledge we are in compliance with the indenture and the Notes, or else specifying any default.

Remedies if an Event of Default Occurs

If an Event of Default has occurred and is continuing, the trustee or the holders of not less than 25% of the outstanding principal amount of the Notes may declare the entire principal amount of the Notes, together with accrued and unpaid interest, if any, to be due and payable immediately by a notice in writing to us and, if notice is given by the holders of the Notes, the trustee. This is called an “acceleration of maturity.” If the Event of Default occurs in relation to our filing for bankruptcy or certain other events of bankruptcy, insolvency or reorganization occur, the principal amount of the Notes, together with accrued and unpaid interest, if any, will automatically, and without any declaration or other action on the part of the trustee or the holders, become immediately due and payable.

At any time after a declaration of acceleration of the Notes has been made by the trustee or the holders of the Notes and before any judgment or decree for payment of money due has been obtained by the trustee, the holders of a majority of the outstanding principal of the Notes, by written notice to us and the trustee, may rescind and annul such declaration and its consequences if (i) we have paid or deposited with the trustee all amounts due and owed with respect to the Notes (other than principal that has become due solely by reason of such acceleration) and certain other amounts, and (ii) any other Events of Default have been cured or waived.

At our election, the sole remedy with respect to an Event of Default due to our failure to comply with certain reporting requirements under the Trust Indenture Act or under “— Covenants — Reporting” below, for the first 180 calendar days after the occurrence of such Event of Default, consists exclusively of the right to receive additional interest on the Notes at an annual rate equal to (1) 0.25% for the first 90 calendar days after such default and (2) 0.50% for calendar days 91 through 180 after such default. On the 181st day after such Event of Default, if such violation is not cured or waived, the trustee or the holders of not less than 25% of the outstanding principal amount of the Notes may declare the principal, together with accrued and unpaid interest, if any, on the Notes to be due and payable immediately. If we choose to pay such additional interest, we must notify the trustee and the holders of the Notes by certificate of our election at any time on or before the close of business on the first business day following the Event of Default.

Before a holder of the Notes is allowed to bypass the trustee and bring a lawsuit or other formal legal action or take other steps to enforce such holder’s rights relating to the Notes, the following must occur:

•

such holder must give the trustee written notice that the Event of Default has occurred and remains uncured;

•

the holders of at least 25% of the outstanding principal of the Notes must have made a written request to the trustee to institute proceedings in respect of such Event of Default in its own name as trustee;

•

such holder or holders must have offered to the trustee indemnity satisfactory to the trustee against the costs, expenses and liabilities to be incurred in compliance with such request;

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•

the trustee for 60 days after its receipt of such notice, request and offer of indemnity has failed to institute any such proceeding; and

•

no direction inconsistent with such written request has been given to the trustee during such 60-day period by holders of a majority of the outstanding principal of the Notes.

No delay or omission in exercising any right or remedy will be treated as a waiver of that right, remedy or Event of Default.

Book-entry and other indirect holders of the Notes should consult their banks or brokers for information on how to give notice or direction to or make a request of the trustee and how to declare or cancel an acceleration of maturity.

Waiver of Defaults

The holders of not less than a majority of the outstanding principal amount of the Notes may on behalf of the holders of all Notes waive any past default with respect to the Notes other than (i) a default in the payment of principal or interest on the Notes when such payments are due and payable (other than by acceleration as described above), or (ii) in respect of a covenant that cannot be modified or amended without the consent of each holder of Notes.

Covenants

In addition to any other covenants described in the accompanying prospectus, as well as standard covenants relating to payment of principal and interest, maintaining an office where payments may be made or securities can be surrendered for payment, payment of taxes by us and related matters, the following covenants will apply to the Notes.

Merger, Consolidation or Sale of Assets

The indenture provides that we will not merge or consolidate with or into any other person (other than a merger of a wholly owned subsidiary into us), or sell, transfer, lease, convey or otherwise dispose of all or substantially all our property in any one transaction or series of related transactions unless:

•

we are the surviving entity or the entity (if other than us) formed by such merger or consolidation or to which such sale, transfer, lease, conveyance or disposition is made will be a corporation or limited liability company organized and existing under the laws of the United States of America, any state thereof or the District of Columbia;

•

the surviving entity (if other than us) expressly assumes, by supplemental indenture in form reasonably satisfactory to the trustee, executed and delivered to the trustee by such surviving entity, the due and punctual payment of the principal of, and premium, if any, and interest on, all the Notes outstanding, and the due and punctual performance and observance of all the covenants and conditions of the indenture to be performed by us;

•

immediately before and immediately after giving effect to such transaction or series of related transactions, no default or Event of Default has occurred and is continuing; and

•

in the case of a merger or consolidation where the surviving entity is other than us or such a sale, transfer, lease, conveyance or disposition, we or such surviving entity, or the entity (if other than us) to which such sale, transfer, lease, conveyance or disposition is made, will deliver, or cause to be delivered, to the trustee, an officers’ certificate and an opinion of counsel, each stating that such transaction and the supplemental indenture, if any, in respect thereto, comply with this covenant and that all conditions precedent in the indenture relating to such transaction have been complied with.

Reporting

If, at any time, we are not subject to the reporting requirements of Sections 13 or 15(d) of the Exchange Act to file any periodic reports with the SEC, we agree to furnish to holders of the Notes and the trustee, for the period of time during which the Notes are outstanding, our audited annual consolidated financial

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statements, within 90 days of our fiscal year end, and unaudited interim consolidated financial statements, within 45 days of our fiscal quarter end (other than our fourth fiscal quarter). All such financial statements will be prepared, in all material respects, in accordance with GAAP, as applicable.

Modification or Waiver

There are three types of changes we can make to the indenture and the Notes:

Changes Not Requiring Approval

First, there are changes that we can make to the Indenture and/or the Notes without the specific approval of the holders of the Notes. This type is limited to clarifications and certain other changes that would not adversely affect holders of the Notes in any material respect and include changes:

•

to evidence the succession of another corporation or limited liability company, and the assumption by the successor corporation or limited liability company of our covenants, agreements and obligations under the indenture and the Notes;

•

to add to our covenants such new covenants, restrictions, conditions or provisions for the protection of the holders of the Notes, and to make the occurrence, or the occurrence and continuance, of a default in any of such additional covenants, restrictions, conditions or provisions an Event of Default;

•

to modify, eliminate or add to any of the provisions of the Indenture to such extent as necessary to effect the qualification of the indenture under the Trust Indenture Act, and to add to the Indenture such other provisions as may be expressly permitted by the Trust Indenture Act, excluding however, the provisions referred to in Section 316(a)(2) of the Trust Indenture Act;

•

to cure any ambiguity or to correct or supplement any provision contained in the Indenture or in any supplemental indenture which may be defective or inconsistent with other provisions;

•

to secure the Notes;

•

to evidence and provide for the acceptance and appointment of a successor trustee and to add or change any provisions of the Indenture as necessary to provide for or facilitate the administration of the trust by more than one trustee; and

•

to make provisions in regard to matters or questions arising under the Indenture, so long as such other provisions do not materially affect the interest of any other holder of the Notes.

Changes Requiring Approval of Each Holder

We cannot make certain changes to the Notes without the specific approval of each holder of the Notes. The following is a list of those types of changes:

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changing the stated maturity of the principal of, or any installment of interest on, any Note;

•

reducing the principal amount or rate of interest of any Note;

•

changing the place of payment where any Note or any interest is payable;

•

impairing the right to institute suit for the enforcement of any payment on or after the date on which it is due and payable;

•

reducing the percentage in principal amount of holders of the Notes whose consent is needed to modify or amend the indenture; and

•

reducing the percentage in principal amount of holders of the Notes whose consent is needed to waive compliance with certain provisions of the indenture or to waive certain defaults.

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Changes Requiring Majority Consent

Any other change to the indenture and the Notes would require the following consent:

•

if the change only affects the Notes, it must be approved by holders of not less than a majority in aggregate principal amount of the outstanding Notes; and

•

if the change affects more than one series of debt securities issued under the indenture, it must be approved by the holders of not less than a majority in aggregate principal amount of each of the series of debt securities affected by the change.

Consent from holders to any change to the indenture or the Notes must be given in writing.

Further Details Concerning Consent

The amount of Notes deemed to be outstanding for the purpose of consenting will include all Notes authenticated and delivered under the indenture as of the date of determination except:

•

Notes cancelled by the trustee or delivered to the trustee for cancellation;

•

Notes for which we have deposited with the trustee or paying agent or set aside in trust money for their payment or redemption and, if money has been set aside for the redemption of the Notes, notice of such redemption has been duly given pursuant to the indenture to the satisfaction of the trustee;

•

Notes held by the Company, its subsidiaries or any other entity which is an obligor under the Notes, unless such Notes have been pledged in good faith and the pledgee is not the Company, an affiliate of the Company or an obligor under the Notes;

•

Notes which have undergone full defeasance, as described below; and

•

Notes which have been paid or exchanged for other Notes due to such Notes’ loss, destruction or mutilation, with the exception of any such Notes held by bona fide purchasers who have presented proof to the trustee that such Notes are valid obligations of the Company.

We will generally be entitled to set any day as a record date for the purpose of determining the holders of the Notes that are entitled to consent or take other action under the indenture, the giving or making of any Notice of Default, any declaration of acceleration of maturity of the Notes, any request to institute proceedings or the reversal of such declaration. If we set a record date for a consent or other action to be taken by the holders of the Notes, that consent or action can only be taken by persons who are holders of the Notes as of the close of business on the record date and, unless otherwise specified, such vote or action must take place on or prior to the 180th day after the record date. We may change the record date at our option, and we will provide written notice to the trustee and to each holder of the Notes of any such change of record date.

Defeasance

The following defeasance provisions will be applicable to the Notes. “Defeasance” means that, by irrevocably depositing with the trustee an amount of cash denominated in U.S. dollars and/or U.S. government obligations sufficient to pay all principal and interest, if any, on the Notes when due and satisfying any additional conditions noted below, we will be deemed to have been discharged from our obligations under the Notes. In the event of a “covenant defeasance,” upon depositing such funds and satisfying similar conditions discussed below we would be released from certain covenants under the indenture relating to the Notes. The consequences to the holders of the Notes would be that, while they would no longer benefit from certain covenants under the indenture, and while the Notes could not be accelerated for any reason, the holders of the Notes nonetheless would be guaranteed to receive the principal and interest owed to them.

Covenant Defeasance

Under the indenture, we will have the option to take the actions described below and be released from some of the restrictive covenants under the indenture under which the Notes were issued. This is called

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“covenant defeasance.” In that event, holders of the Notes would lose the protection of those restrictive covenants but would gain the protection of having money and government securities set aside in trust to repay the Notes. In order to achieve covenant defeasance, the following must occur:

•

we must irrevocably deposit or cause to be deposited with the trustee as trust funds for the benefit of all holders of the Notes cash, U.S. government obligations or a combination of cash and U.S. government obligations sufficient, without reinvestment, in the opinion of a nationally recognized firm of independent public accountants, investment bank or appraisal firm, to generate enough cash to make interest, principal and any other applicable payments on the Notes on their various due dates;

•

we must deliver to the trustee a legal opinion of our counsel stating that under U.S. federal income tax law, we may make the above deposit and covenant defeasance without causing holders to be taxed on the Notes differently than if those actions were not taken;

•

we must deliver to the trustee an officers’ certificate stating that the Notes, if then listed on any securities exchange, will not be delisted as a result of the deposit;

•

no default or Event of Default with respect to the Notes shall have occurred and be continuing, and no defaults or Events of Defaults related to bankruptcy, insolvency or organization occurs during the 90 days following the deposit;

•

the covenant defeasance must not cause the trustee to have a conflicting interest within the meaning of the Trust Indenture Act;

•

the covenant defeasance must not result in a breach or violation of, or constitute a default under, any material agreements or instruments (other than the indenture) to which we are a party;

•

the covenant defeasance must not result in the trust arising from the deposit constituting an investment company within the meaning of the Investment Company Act unless such trust will be registered under the Investment Company Act or exempt from registration thereunder; and

•

we must deliver to the trustee an officers’ certificate and a legal opinion from our counsel stating that all conditions precedent with respect to the covenant defeasance have been complied with.

Full Defeasance

If there is a change in U.S. federal income tax law, we can legally release ourselves from all payment and other obligations on the Notes if we take the following actions below:

•

we must deliver to the trustee a legal opinion confirming that there has been a change to the current U.S. federal income tax law or an Internal Revenue Service ruling that allows us to make the above deposit without causing holders to be taxed on the Notes any differently than if we did not make the deposit;

•

we must deliver to the trustee an officers’ certificate stating that the Notes, if then listed on any securities exchange, will not be delisted as a result of the deposit;

•

no default or Event of Default with respect to the Notes shall have occurred and be continuing and no defaults or Events of Defaults related to bankruptcy, insolvency or organization occurs during the 90 days following the deposit;

•

the full defeasance must not cause the trustee to have a conflicting interest within the meaning of the Trust Indenture Act;

•

the full defeasance must not result in a breach or violation of, or constitute a default under, any material agreements or instruments (other than the indenture) to which we are a party;

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the full defeasance must not result in the trust arising from the deposit constituting an investment company within the meaning of the Investment Company Act unless such trust will be registered under the Investment Company Act or exempt from registration thereunder; and

•

we must deliver to the trustee an officers’ certificate and a legal opinion from our counsel stating that all conditions precedent with respect to the full defeasance have been complied with.

In the event that the trustee is unable to apply the funds held in trust to the payment of obligations under the Notes by reason of a court order or governmental injunction or prohibition, then those of our obligations discharged under the full defeasance or covenant defeasance will be revived and reinstated as though no deposit of funds had occurred, until such time as the trustee is permitted to apply all funds held in trust under the procedure described above may be applied to the payment of obligations under the Notes. However, if we make any payment of principal or interest on the Notes to the holders, we will have the right to receive such payments from the trust in the place of the holders.

Listing

The Notes, when issued, will trade on Nasdaq under the symbol “SNCRL”. The Notes are expected to trade “flat,” meaning that purchasers will not pay and sellers will not receive any accrued and unpaid interest on the Notes that is not included in the trading price.

Governing Law

The Indenture and the Notes will be governed by and construed in accordance with the laws of the State of New York.

Global Notes; Book-Entry Issuance

The Notes will be issued in the form of one or more global certificates, or “Global Notes,” registered in the name of The Depository Trust Company, or “DTC”. DTC has informed us that its nominee will be Cede & Co. Accordingly, we expect Cede & Co. to be the initial registered holder of the Notes. No person that acquires a beneficial interest in the Notes will be entitled to receive a certificate representing that person’s interest in the Notes except as described herein. Unless and until definitive securities are issued under the limited circumstances described below, all references to actions by holders of the Notes will refer to actions taken by DTC upon instructions from its participants, and all references to payments and notices to holders will refer to payments and notices to DTC or Cede & Co., as the registered holder of these securities.

DTC has informed us that it is a limited-purpose trust company organized under the New York Banking Law, a “banking organization” within the meaning of the New York Banking Law, a member of the Federal Reserve System, a “clearing corporation” within the meaning of the New York Uniform Commercial Code, and a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act. DTC holds and provides asset servicing for over 3.5 million issues of U.S. and non-U.S. equity issues, corporate and municipal debt issues, and money market instruments from over 100 countries that DTC’s participants, or “Direct Participants,” deposit with DTC. DTC also facilitates the post-trade settlement among Direct Participants of sales and other securities transactions in deposited securities through electronic computerized book-entry transfers and pledges between Direct Participants’ accounts. This eliminates the need for physical movement of securities certificates. Direct Participants include both U.S. and non-U.S. securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations. DTC is a wholly owned subsidiary of The Depository Trust & Clearing Corporation, or “DTCC.”

DTCC is the holding company for DTC, National Securities Clearing Corporation and Fixed Income Clearing Corporation, all of which are registered clearing agencies. DTCC is owned by the users of its regulated subsidiaries. Access to the DTC system is also available to others such as both U.S. and non-U.S. securities brokers and dealers, banks, trust companies and clearing corporations that clear through or maintain a custodial relationship with a Direct Participant, either directly or indirectly, or “Indirect Participants.” DTC has an S&P rating of AA+. The DTC Rules applicable to its participants are on file with the SEC. More information about DTC can be found at www.dtcc.com.

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Purchases of the Notes under the DTC system must be made by or through Direct Participants, which will receive a credit for the Notes on DTC’s records. The ownership interest of each actual purchaser of each Note, or the “Beneficial Owner,” is in turn to be recorded on the Direct and Indirect Participants’ records. Beneficial Owners will not receive written confirmation from DTC of their purchase. Beneficial Owners are, however, expected to receive written confirmations providing details of the transaction, as well as periodic statements of their holdings, from the Direct or Indirect Participant through which the Beneficial Owner entered into the transaction. Transfers of ownership interests in the Notes are to be accomplished by entries made on the books of Direct and Indirect Participants acting on behalf of Beneficial Owners. Beneficial Owners will not receive certificates representing their ownership interests in the Notes, except in the event that use of the book-entry system for the Notes is discontinued.

To facilitate subsequent transfers, all Notes deposited by Direct Participants with DTC are registered in the name of DTC’s partnership nominee, Cede & Co., or such other name as may be requested by an authorized representative of DTC. The deposit of the Notes with DTC and their registration in the name of Cede & Co. or such other DTC nominee do not effect any change in beneficial ownership. DTC has no knowledge of the actual Beneficial Owners of the Notes; DTC’s records reflect only the identity of the Direct Participants to whose accounts the Notes are credited, which may or may not be the Beneficial Owners. The Direct and Indirect Participants will remain responsible for keeping account of their holdings on behalf of their customers.

Conveyance of notices and other communications by DTC to Direct Participants, by Direct Participants to Indirect Participants, and by Direct Participants and Indirect Participants to Beneficial Owners will be governed by arrangements among them, subject to any statutory or regulatory requirements as may be in effect from time to time.

Redemption notices will be sent to DTC. If less than all of the Notes are being redeemed, DTC’s practice is to determine by lot the amount of the interest of each Direct Participant in the Notes to be redeemed.

Neither DTC nor Cede & Co. (nor any other DTC nominee) will consent or vote with respect to the Notes unless authorized by a Direct Participant in accordance with DTC’s Procedures. Under its usual procedures, DTC mails an Omnibus Proxy to us as soon as possible after the record date. The Omnibus Proxy assigns Cede & Co.’s consenting or voting rights to those Direct Participants to whose accounts the Notes are credited on the record date (identified in a listing attached to the Omnibus Proxy).

Redemption proceeds, distributions and interest payments on the Notes will be made to Cede & Co., or such other nominee as may be requested by an authorized representative of DTC. DTC’s practice is to credit Direct Participants’ accounts upon DTC’s receipt of funds and corresponding detail information from us or the applicable trustee or depositary on the payment date in accordance with their respective holdings shown on DTC’s records. Payments by Participants to Beneficial Owners will be governed by standing instructions and customary practices, as is the case with the Notes held for the accounts of customers in bearer form or registered in “street name,” and will be the responsibility of such Participant and not of DTC nor its nominee, the applicable trustee or depositary, or us, subject to any statutory or regulatory requirements as may be in effect from time to time. Payment of redemption proceeds, distributions and interest payments to Cede & Co. (or such other nominee as may be requested by an authorized representative of DTC) is the responsibility of us or the applicable trustee or depositary. Disbursement of such payments to Direct Participants will be the responsibility of DTC, and disbursement of such payments to the Beneficial Owners will be the responsibility of Direct and Indirect Participants.

The information in this section concerning DTC and DTC’s book-entry system has been obtained from sources that we believe to be reliable, but we take no responsibility for the accuracy thereof.

None of the Company, the trustee, any depositary, or any agent of any of them will have any responsibility or liability for any aspect of DTC’s or any participant’s records relating to, or for payments made on account of, beneficial interests in a Global Note, or for maintaining, supervising or reviewing any records relating to such beneficial interests.

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Termination of a Global Note

If a Global Note is terminated for any reason, interest in it will be exchanged for certificates in non-book-entry form as certificated securities. After such exchange, the choice of whether to hold the certificated Notes directly or in street name will be up to the investor. Investors must consult their own banks or brokers to find out how to have their interests in a Global Note transferred on termination to their own names, so that they will be holders of the Notes. See “— Form, Exchange and Transfer of Certificated Registered Securities.”

Payment and Paying Agents

We will pay interest to the person listed in the registrar’s records as the owner of the Notes at the close of business on the record date for the applicable interest payment date, even if that person no longer owns the Note on the interest payment date. Because we pay all the interest for an interest period to the holders on the record date, holders buying and selling the Notes must work out between themselves the appropriate purchase price. The most common manner is to adjust the sales price of the Notes to prorate interest fairly between buyer and seller based on their respective ownership periods within the particular interest period.

Payments on Global Notes

We will make payments on the Notes so long as they are represented by Global Notes in accordance with the applicable policies of the depositary in effect from time to time. Under those policies, we will make payments directly to the depositary, or its nominee, and not to any indirect holders who own beneficial interest in the Global Notes. An indirect holder’s right to those payments will be governed by the rules and practices of the depositary and its participants.

Payments on Certificated Securities

In the event the Notes become represented by certificates, we will make payments on the Notes as follows. We will pay interest that is due on an interest payment date by check mailed on the interest payment date to the holder of the Note at his or her address shown on the trustee’s records as of the close of business on the record date. We will make all payments of principal by check at the office of the trustee in the contiguous United States and/or at other offices that may be specified in the indenture or a notice to holders against surrender of the Note.

Payment When Offices Are Closed

If any payment is due on the Notes on a day that is not a business day, we will make the payment on the next day that is a business day. Payments made on the next business day in this situation will be treated under the indenture as if they were made on the original due date. Such payment will not result in a default under the Notes or the indenture, and no interest will accrue on the payment amount from the original due date to the next day that is a business day.

Book-entry and other indirect holders should consult their banks or brokers for information on how they will receive payments on the Notes.

Form, Exchange and Transfer of Certificated Registered Securities

Notes in physical, certificated form will be issued and delivered to each person that DTC identifies as a beneficial owner of the related Notes only if:

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DTC notified us at any time that it is unwilling or unable to continue as depositary for the Global Notes;

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DTC ceases to be registered as a clearing agency under the Exchange Act; or

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an Event of Default with respect to such Global Note has occurred and is continuing.

In all cases, certificated Notes delivered in exchange for any Global Note or beneficial interests in Global Notes will be maintained in registered form under Section 5f.103-1(c) of the U.S. Treasury Regulations (and may be transferred only in accordance with such provisions).

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Holders may exchange their certificated securities for Notes of smaller denominations or combined into fewer Notes of larger denominations, as long as the total principal amount is not changed and as long as the denomination is equal to or greater than $25.

Holders may exchange or transfer their certificated securities at the office of the trustee. We have appointed the trustee to act as our agent for registering the Notes in the name of holders transferring Notes. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts.

Holders will not be required to pay a service charge for any registration of transfer or exchange of their certificated securities, but they may be required to pay any tax or other governmental charge associated with the registration of transfer or exchange. The transfer or exchange will be made only if our transfer agent is satisfied with the holder’s proof of legal ownership.

If we redeem any of the Notes, we may block the transfer or exchange of those Notes selected for redemption during the period beginning 15 days before the day we mail the notice of redemption and ending on the day of that mailing, in order to determine or fix the list of holders to prepare the mailing. We may also refuse to register transfer or exchanges of any certificated Notes selected for redemption, except that we will continue to permit transfers and exchanges of the unredeemed portion of any Note that will be partially redeemed.

About the Trustee

The Bank of New York Mellon Trust Company, N.A. will be the trustee under the indenture and will be the paying agent and registrar for the Notes. The trustee may resign or be removed with respect to the Notes provided that a successor trustee is appointed to act with respect to the Notes.

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U.S. FEDERAL INCOME TAX CONSIDERATIONS

The following is a summary of the U.S. federal income tax considerations with respect to the acquisition, ownership, and disposition of the Notes that we are offering. The following discussion is not exhaustive of all possible tax considerations. This summary is based upon the Internal Revenue Code of 1986, as amended (the “Code”), existing and temporary Treasury Regulations promulgated thereunder and administrative pronouncements and judicial decisions thereof, all in effect on the date hereof and all of which are subject to change or differing interpretations. Those authorities may be changed, perhaps retroactively, so as to result in U.S. federal income tax consequences different from those summarized below. We cannot assure you that a change in law, possibly with retroactive application, will not alter significantly the tax consequences described in this summary. No assurance can be given that the Internal Revenue Service (“IRS”) would not assert, or that a court would not sustain, a position contrary to any of the tax consequences described below, and we have not obtained, nor do we intend to obtain, a ruling from the IRS or an opinion of counsel with respect to the U.S. federal income tax consequences of the acquisition, ownership or disposition of the Notes.

This summary is for general information only, and does not address all aspects of U.S. federal income taxation that may be important to a particular holder in light of its investment or tax circumstances or to holders subject to special tax rules, such as partnerships (including entities and arrangements classified as partnerships for U.S. federal income tax purposes), subchapter S corporations or other pass-through entities, banks, financial institutions, tax-exempt entities (including private foundations), governmental organizations, insurance companies, qualified retirement plans, regulated investment companies, real estate investment trusts, dealers in stocks, securities or currencies, traders in securities that have elected to use the mark-to-market method of accounting for their securities, persons holding the Notes as part of an integrated transaction, including a “straddle,” “hedge,” “constructive sale,” or “conversion transaction,” U.S. Holders (as defined below) whose functional currency (as defined in Section 985 of the Code) is not the U.S. dollar, U.S. Holders that hold their Notes through non-U.S. brokers or other non-U.S. intermediaries, “controlled foreign corporations,” “passive foreign investment companies,” corporations that accumulate earnings to avoid U.S. federal income tax, persons deemed to sell the Notes under the constructive sale provisions of the Code, persons that purchase or sell Notes as part of a wash sale for U.S. federal income tax purposes, persons subject to special tax accounting rules under Section 451(b) of the Code, U.S. expatriates and certain former citizens or long-term residents of the United States, and individuals subject to the alternative minimum tax provisions of the Code. Moreover, this summary does not include any description of the other U.S. federal tax laws (such as estate and gift tax laws or the Medicare tax on net investment income) or the tax laws of any state or local governments, or of any foreign government, that may be applicable to a particular holder.

This summary is directed solely to holders that, except as otherwise specifically noted, will purchase the Notes offered in this prospectus supplement upon original issuance for the “issue price” (i.e., the first price at which a substantial amount of the Notes is sold for money to persons, other than to bond houses, brokers or similar persons or organizations acting in the capacity of the underwriters, placement agents or wholesalers) for cash and will hold such securities as capital assets within the meaning of Section 1221 of the Code, which generally means as property held for investment.

THIS SUMMARY IS FOR GENERAL INFORMATION ONLY AND IS NOT INTENDED TO CONSTITUTE A COMPLETE DESCRIPTION OF ALL TAX CONSEQUENCES RELATING TO THE ACQUISITION, OWNERSHIP AND DISPOSITION OF THE NOTES. PROSPECTIVE HOLDERS OF THE NOTES SHOULD CONSULT WITH THEIR TAX ADVISORS REGARDING THE TAX CONSEQUENCES TO THEM (INCLUDING THE APPLICATION AND EFFECT OF ANY STATE, LOCAL, NON-U.S. INCOME AND OTHER TAX LAWS) OF THE ACQUISITION, OWNERSHIP AND DISPOSITION OF THE NOTES.

As used in this prospectus supplement, the term “U.S. Holder” means a beneficial owner of Notes that is for U.S. federal income tax purposes:

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an individual who is a citizen or resident of the United States;

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a corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized under the laws of the United States, any state thereof or the District of Columbia;

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an estate, the income of which is subject to U.S. federal income taxation regardless of its source; or

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a trust (i) whose administration is subject to the primary supervision of a U.S. court and which has one or more U.S. persons who have the authority to control all substantial decisions of the trust, or (ii) that has a valid election in effect under applicable Treasury regulations to be treated as a U.S. person for U.S. federal income tax purposes.

As used in this prospectus supplement, the term “Non-U.S. Holder” means a beneficial owner of the Notes that is neither a U.S. Holder nor a partnership for U.S. federal income tax purposes.

If a partnership or other pass-through entity for U.S. federal income tax purposes holds the Notes offered in this prospectus supplement, the U.S. federal income tax treatment of a partner in such partnership or member of such other pass-through entity generally will depend upon the status of the partner or member and the activities of the partnership or other pass-through entity and accordingly, this summary does not apply to partnerships. Partnerships and other pass-through entities, and any person who is a partner or member of such entity, should consult its own tax advisor regarding the U.S. federal income tax consequences to the partner or member of the acquisition, ownership and disposition of the Notes by the partnership or other pass-through entity.

Qualified Reopening

We will not issue any Notes unless we can treat the Notes as being issued in a “qualified reopening” for U.S. federal income tax purposes and thus will treat the Notes as part of the same issue as the Initial 2026 Notes. Under this treatment, all of the Notes will be deemed to have the same issue date, the same issue price and (with respect to holders) the same adjusted issue price as the Initial 2026 Notes for U.S. federal income tax purposes. The Notes, like the Initial 2026 Notes, will not have original issue discount. However, depending on a holder’s purchase price, the Notes may have amortizable bond premium. Special rules governing the treatment of amortizable bond premium are described below under “— Consequences to U.S. Holders — Bond Premium.”

Consequences to U.S. Holders

The following is a summary of the U.S. federal income tax consequences that will apply to U.S. Holders of the Notes.

Certain Additional Payments. There are circumstances in which we may make payments on a Note that would increase the yield of the Note, as described under “Description of the Notes — Optional Redemption.” We believe that there is only a remote possibility that we would be required to make such payments, and therefore we do not intend to treat the Notes as subject to the special rules governing “contingent payment debt instruments.” Accordingly, any premium payable to U.S. Holders of the Notes should be includible in gross income by a U.S. Holder at the time the payment is paid or accrues in accordance with the U.S. Holder’s regular method of accounting for U.S. federal income tax purposes. Our determination that such possibility is a remote contingency is binding on you, unless you explicitly disclose to the IRS on your tax return for such year during which you acquire the Notes that you are taking a different position. Our position is not binding on the IRS. If the IRS takes a contrary position, a U.S. Holder may be required to accrue interest income based upon a “comparable yield” (as defined in the Treasury regulations) determined at the time of issuance of the Notes (which is not expected to differ significantly from the actual yield on the Notes), with adjustments to such accruals when any contingent payments are made that differ from the payments based on the comparable yield. In addition, any income on the sale, exchange, retirement or other taxable disposition of the Notes would be treated as interest income rather than as capital gain. U.S. Holders should consult their tax advisors regarding the tax consequences if the Notes were treated as contingent payment debt instruments. The remainder of this discussion assumes that the Notes are not treated as contingent payment debt instruments.

Payment of Interest. Interest on a Note generally will be included in the income of a U.S. Holder as interest income at the time it is accrued or is received in accordance with the U.S. Holder’s regular method of accounting for U.S. federal income tax purposes and will be ordinary income.

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Pre-Issuance Accrued Interest. A portion of the purchase price of a Note may be attributable to the amount of interest accrued prior to the date the Note is issued, or “pre-issuance accrued interest.” A U.S. Holder may elect to treat a portion of the first stated interest payment received on a Note, equal to the pre-issuance accrued interest, as a nontaxable return of such pre-issuance accrued interest rather than as an amount payable on the Note and such U.S. Holder’s adjusted tax basis in such Note will exclude the amount of pre-issuance accrued interest.

Bond Premium. As a general matter, if and to the extent that a U.S. Holder acquires a Note for an amount (other than any amount attributable to pre-issuance accrued interest) that is greater than the sum of all amounts payable on such Note after the purchase date, other than payments of qualified stated interest, then such U.S. Holder will be considered to have acquired the Note with “amortizable bond premium” to the extent of such excess. Generally, a U.S. Holder may elect to amortize such bond premium as an offset to stated interest income in respect of the Note, using a constant yield method prescribed under applicable Treasury Regulations, over the remaining term of the Note. If a U.S. Holder elects to amortize bond premium, such U.S. Holder must reduce its basis in the Note by the amount of the premium used to offset stated interest. If a U.S. Holder does not elect to amortize the premium, that premium will remain included in the U.S. Holder’s adjusted tax basis in its Note and will decrease the gain or increase the loss that would otherwise be recognized on a sale, exchange, retirement, or other disposition of the Note. The rules relating to amortizable bond premium, the determination of the accrual period for any such bond premium, and the effect of an election to amortize bond premium, are complex and potential investors should consult their tax advisors regarding the application of these rules to their particular circumstances.

Sale, Exchange, or Retirement of Notes. Upon the sale, exchange, retirement, or other disposition of a Note, a U.S. Holder will recognize gain or loss equal to the difference between the amount realized upon the sale, exchange, retirement or other disposition and the U.S. Holder’s adjusted tax basis in the Note. The amount realized by the U.S. Holder will include the amount of any cash and the fair market value of any other property received for the Note, but will exclude amounts attributable to accrued but unpaid interest (other than any amount attributable to pre-issuance accrued interest) which will be treated as described above under “Payments of Interest.” A U.S. Holder’s adjusted tax basis in a Note will generally be the cost of the Note to such U.S. Holder (less any amount attributable to pre-issuance accrued interest if the U.S. Holder elects to treat a portion of the first stated interest payment received on a Note as a nontaxable return of such pre-issuance accrued interest), decreased by any bond premium previously amortized by such U.S. Holder with respect to such Note.

Gain or loss realized on the sale, exchange, retirement, or other disposition of a Note generally will be capital gain or loss, and will be long-term capital gain or loss if the Note has been held for more than one year. Otherwise, such gain or loss will be short-term capital gain or loss. Net long-term capital gain recognized by an individual U.S. Holder is generally taxed at preferential rates. The ability of U.S. Holders to deduct capital losses is subject to limitations under the Code.

Consequences to Non-U.S. Holders

The following is a summary of the U.S. federal income tax consequences that will apply to Non-U.S. Holders of a Note. For purposes of this discussion relating to Non-U.S. Holders, interest does not include any pre-issuance accrued interest, as discussed above under “— Consequences to U.S. Holders — Pre-Issuance Accrued Interest.” However, to the extent any interest is subject to U.S. federal withholding tax as described below, the applicable withholding agent is likely to withhold on all payments of interest, including payment of pre-issuance accrued interest.

Payments of Interest. Except as discussed below, principal and interest payments that are received from us and that are not effectively connected with the conduct by the Non-U.S. Holder of a trade or business within the United States, or attributable to a permanent establishment maintained by the Non-U.S. Holder in the United States if certain tax treaties apply, generally will not be subject to U.S. federal income or withholding tax, except as provided below. Interest may be subject to a 30% withholding tax (or less under an applicable treaty, if any) if:

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a Non-U.S. Holder actually or constructively owns 10% or more of the total combined voting power of all classes of our stock entitled to vote;

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a Non-U.S. Holder is a “controlled foreign corporation” for U.S. federal income tax purposes that is related to us (directly or indirectly) through stock ownership; or

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the Non-U.S. Holder does not satisfy the certification requirements described below.

In the case of the Notes, a Non-U.S. Holder generally will satisfy the certification requirements if either: (i) the Non-U.S. Holder certifies to us, under penalties of perjury, that it is not a “United States person” (within the meaning of the Code) and provides its name and address (which certification may generally be made on an IRS Form W-8BEN, IRS Form W-8BEN-E or other applicable U.S. nonresident withholding tax certification form), or (ii) a securities clearing organization, bank, or other financial institution that holds customer securities in the ordinary course of its trade or business (a “financial institution”) and holds the Note certifies to us under penalties of perjury that either it or another financial institution has received the required statement from the Non-U.S. Holder certifying that it is not a United States person and furnishes us with a copy of the statement.

Except as discussed below, payments not meeting the requirements set forth above and thus subject to withholding of U.S. federal income tax may nevertheless be exempt from withholding (or subject to withholding at a reduced rate) if the Non-U.S. Holder provides us with a properly executed IRS Form W-8BEN, Form W-8BEN-E, or other applicable U.S. nonresident withholding tax certification form, claiming an exemption from, or reduction in, withholding under the benefit of a tax treaty, or IRS Form W-8ECI (or other applicable form) stating that interest paid on the Notes is not subject to withholding tax because it is effectively connected with the conduct of a trade or business within the United States as discussed below. These forms may be required to be updated periodically. To claim benefits under an income tax treaty, a Non-U.S. Holder must obtain a taxpayer identification number and certify as to its eligibility under the appropriate treaty’s limitations on benefits article. In addition, special rules may apply to claims for treaty benefits made by Non-U.S. Holders that are entities rather than individuals. A Non-U.S. Holder that is eligible for a reduced rate of U.S. federal withholding tax pursuant to an income tax treaty may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS.

Sale, Exchange, or Retirement of Note. Except as discussed below, a Non-U.S. Holder generally will not be subject to U.S. federal income or withholding tax on any gain realized on the sale, exchange, retirement or other disposition of Notes, provided that: (a) the gain is not effectively connected with the conduct of a trade or business within the United States, or attributable to a permanent establishment maintained in the United States if certain tax treaties apply, and (b) in the case of a Non-U.S. Holder that is an individual, the Non-U.S. Holder is not present in the United States for 183 days or more in the taxable year of the sale, exchange or other disposition of the Note. An individual Non-U.S. Holder who is present in the United States for 183 days or more in the taxable year of sale, exchange or other disposition of a Note, if certain other conditions are met, will be subject to U.S. federal income tax at a rate of 30% on the gain realized on the sale, exchange or other disposition of such Note (or such lower rate provided by an applicable U.S. income tax treaty), which may be offset by certain U.S.-source capital losses.

Income Effectively Connected with a Trade or Business within the United States. If a Non-U.S. Holder of a Note is engaged in the conduct of a trade or business within the United States and if interest on the Note, or gain realized on the sale, exchange or other disposition of the Note, is effectively connected with the conduct of such trade or business (and, if certain tax treaties apply, is attributable to a permanent establishment maintained by the Non-U.S. Holder in the United States), the Non-U.S. Holder, although exempt from U.S. federal withholding tax (provided that the certification requirements discussed below are satisfied), will generally be subject to U.S. federal income tax on such interest or gain on a net income basis in the same manner as if it were a U.S. Holder, subject to an applicable income tax treaty providing otherwise. To claim exemption from withholding, the Non-U.S. Holder must certify its qualification by providing us with a properly executed IRS Form W-8ECI. Non-U.S. Holders should read the material under the heading “— Consequences to U.S. Holders,” for a description of the U.S. federal income tax consequences of acquiring, owning, and disposing of a Note. In addition, if such Non-U.S. Holder is a foreign corporation, it may also be subject to a branch profits tax equal to 30% (or such lower rate provided by an applicable U.S. income tax treaty) of all or a portion of its earnings and profits for the taxable year that are effectively connected with its conduct of a trade or business in the United States, subject to certain adjustments.

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Backup Withholding and Information Reporting

In general, in the case of a U.S. Holder, other than certain exempt recipients (including a corporation and certain other persons who, when required, demonstrate their exempt status), we and other payors are required to report to the IRS all payments of principal and interest on the Notes. In addition, we and other payors generally are required to report to the IRS any payment of proceeds from the sale of a Note before maturity. Additionally, backup withholding generally will apply to any payments to a U.S. Holder if the U.S. Holder fails to provide an accurate taxpayer identification number and certify that the taxpayer identification number is correct, the U.S. Holder is notified by the IRS that it is subject to backup withholding, or the U.S. Holder does not certify that it is not subject to backup withholding. If applicable, backup withholding will be imposed (currently at a rate of 24%).

In the case of a Non-U.S. Holder, backup withholding and information reporting will apply to payments made unless the Non-U.S. Holder certifies to the applicable withholding agent under penalties of perjury (usually on IRS Form W-8BEN or W-8BEN-E) that, among other things, it is not a U.S. Holder (and the payor does not have actual knowledge or reason to know that the holder a U.S. Holder), or the Non-U.S. Holder otherwise establishes an exemption (and the payor does not have actual knowledge or reason to know that the conditions of any exemption are not satisfied).

In addition, information reporting and backup withholding generally are not required with respect to the amount of any proceeds from the sale or other disposition of a Note by a Non-U.S. Holder outside the United States through a foreign office of a foreign broker that does not have certain specified connections to the United States. However, if a Non-U.S. Holder sells or otherwise disposes of a Note through a U.S. broker or the U.S. offices of a foreign broker, the broker generally will be required to report the amount of proceeds paid to such Non-U.S. Holder to the IRS and also backup withhold on that amount unless the Non-U.S. Holder provides appropriate certification to the broker of its status as a Non-U.S. Holder (and the payor does not have actual knowledge or reason to know that the holder a U.S. Holder) or the Non-U.S. Holder otherwise establishes an exemption (and the payor does not have actual knowledge or reason to know that the conditions of any exemption are not satisfied). Information reporting will also apply if a Non-U.S. Holder sells its Notes through a foreign broker deriving more than a specified percentage of its income from U.S. sources or having certain other connections to the United States, unless such broker has documentary evidence in its records that the holder is a Non-U.S. Holder (and the payor does not have actual knowledge or reason to know that the holder is a U.S. Holder) and certain other conditions are met, or the Non-U.S. Holder otherwise establishes an exemption (and the payor does not have actual knowledge or reason to know that the conditions of any exemption are not satisfied).

Payment of the proceeds from a sale of a Note to or through the United States office of a broker is subject to information reporting and backup withholding, unless the holder certifies as to its Non-U.S. Holder status or otherwise establishes an exemption from information reporting and backup withholding.

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules will be allowed as a refund or a credit against a holder’s U.S. federal income tax liability provided the required information is timely furnished to the IRS.

Foreign Account Tax Compliance Act

Sections 1471 through 1474 of the Code, commonly referred to as FATCA, generally impose a 30% withholding tax on U.S. source payments, including interest, dividends, other fixed or determinable annual or periodical gain, profits, and income, if the Notes are held by or through:

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certain foreign financial institutions (including investment funds), unless the institution otherwise qualifies for an exemption or enters into an agreement with the U.S. Treasury (i) to collect and report, on an annual basis, information with respect to accounts in the institution held by certain U.S. persons and by certain non-U.S. entities that are wholly or partially owned by U.S. persons and (ii) to withhold 30% on certain payments; or

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a non-financial non-U.S. entity, unless the entity (i) either certifies to the applicable withholding agent or the IRS that the entity does not have any “substantial United States owners” or provides

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certain information regarding the entity’s “substantial United States owners” or (ii) otherwise establishes an exemption from such withholding tax.

Accordingly, the entity through which the Notes are held will affect the determination of whether such withholding is required.

The rules described above may be modified by an intergovernmental agreement entered into between the United States and an applicable foreign country, or by future Treasury regulations or other guidance.

Non-U.S. Holders, or U.S. persons holding Notes through a non-U.S. intermediary, are urged to consult their own tax advisors regarding the possible implications of FATCA on their investment in the Notes.

THE PRECEDING DISCUSSION OF U.S. FEDERAL INCOME TAX CONSIDERATIONS IS FOR GENERAL INFORMATION ONLY AND IS NOT TAX ADVICE. PROSPECTIVE INVESTORS ARE URGED TO CONSULT THEIR OWN TAX ADVISORS REGARDING THE PARTICULAR FEDERAL, STATE, LOCAL, AND FOREIGN TAX CONSEQUENCES OF PURCHASING, HOLDING, AND DISPOSING OF OUR NOTES.

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PLAN OF DISTRIBUTION (Conflict of Interest)

We have entered into a Sales Agreement with the Agent under which we may sell from time to time, to or through the Agent, Notes pursuant to this prospectus supplement. Upon written instructions from us, the Agent will use its commercially reasonable efforts consistent with its normal sales and trading practices to sell, as our sales agent, the Notes under the terms and subject to the conditions set forth in the Sales Agreement. We may instruct the Agent not to sell the Notes if the sales cannot be effected at or above the price designated by us in any instruction. We will instruct the Agent not to sell the Notes if the sales cannot be effected at or above prices that will allow the Notes to be treated as “fungible” with the initial issuance of Notes, for U.S. federal income tax purposes. We or the Agent may suspend the offering of Notes upon proper notice and subject to other conditions.

Sales of the Notes, if any, under this prospectus supplement may be made in transactions that are deemed to be “at the market,” as defined in Rule 415 under the Securities Act. If any of the Notes are sold at prices above par, the effective yield on such Notes to the purchasers may be less than 8.375%.

The Agent will provide written confirmation of a sale to us no later than the opening of the trading day on Nasdaq following each trading day in which the Notes are sold under the Sales Agreement. Each confirmation will include the principal amount of Notes sold, the sales price of Notes sold, the aggregate gross sales proceeds of such Notes, the net proceeds to us and the compensation payable by us to the Agent in connection with the sales.

The Agent will receive a commission from us of 2.0% of the gross sales price of any Notes sold through the Agent under the Sales Agreement. We estimate that the total expenses for the offering, excluding compensation payable to the Agent under the terms of the Sales Agreement, will be approximately $400,000. This estimate includes the reimbursement by the Company of the reasonable fees and expenses of the Agent in connection with the transactions contemplated by the Sales Agreement.

Settlement for sales of the Notes will occur on the second trading day following the date on which such sales are made, or on some other date that is agreed upon by us and the Agent in connection with a particular transaction, in return for payment of the net proceeds to us. There is no arrangement for funds to be received in an escrow, trust or similar arrangement.

We will report at least quarterly the principal amount of Notes sold through the Agent under the Sales Agreement, the net proceeds to us and the compensation paid by us to the Agent, if any.

In connection with the sale of the Notes on our behalf, the Agent will be deemed to be an “underwriter” within the meaning of the Securities Act, and the compensation of the Agent will be deemed to be underwriting commissions or discounts. We have agreed to provide indemnification and contribution to the Agent against certain civil liabilities, including liabilities under the Securities Act.

The offering of the Notes pursuant to the Sales Agreement will terminate upon the earlier of (i) the sale of the dollar amount of Notes subject to the Sales Agreement or (ii) the termination of the Sales Agreement as permitted therein.

Other Relationships

The Agent and certain of its affiliates are full service financial institutions engaged in various activities, which may include securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities. The Agent and certain of its affiliates have, from time to time, performed, and may in the future perform, various commercial and investment banking and financial advisory services for the Company and our affiliates, for which they received or may in the future receive customary fees and expenses.

In the ordinary course of its various business activities, the Agent and certain of its affiliates actively trade debt and equity securities (or related derivative securities) and financial instruments for their own account and for the accounts of their customers, and such investment and securities activities may involve securities and/or instruments of the Company or our affiliates. The Agent and certain of its affiliates may also communicate independent investment recommendations, market color or trading ideas and/or publish or

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express independent research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.

The principal business address of the Agent is 299 Park Avenue, 21st Floor, New York, New York 10171.

Conflict of Interest

The Agent, a wholly-owned subsidiary of our largest shareholder, will act as our Agent in connection with the offering, and as such, will have a “conflict of interest” in this offering within the meaning of FINRA Rule 5121. Consequently, this offering will be conducted in compliance with the provisions of FINRA Rule 5121. The Agent will not be permitted to sell Notes in this offering to an account over which it exercises discretionary authority without the prior specific written approval of the account holder.

The Agent and its affiliates may also participate in future lending arrangements with us. As a result, a portion of the net proceeds of any sale of our Notes under this prospectus supplement may be received by the Agent and its affiliates if they participate in future lending arrangements with us. Because they may receive the net proceeds of any of these sales, the Agent may have an interest in these sales beyond the customary commissions they receive. This could result in a conflict of interest and cause the Agent to act in a manner that is not in the best interests of us or our investors in connection with any sale of Notes under this prospectus supplement.

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LEGAL MATTERS

Certain legal matters will be passed upon for us by Gunderson Dettmer Stough Villeneuve Franklin & Hachigian, LLP, Boston, Massachusetts, and Skadden, Arps, Slate, Meagher & Flom LLP, New York, New York, and for the Agent by Foley & Lardner, LLP, Chicago, Illinois.

EXPERTS

The consolidated financial statements of Synchronoss Technologies, Inc. (the “Company”) appearing in the Company’s Annual Report (Form 10-K) for the year ended December 31, 2020, and the effectiveness of the Company’s internal control over financial reporting as of December 31, 2020, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon included therein, and incorporated herein by reference. Such consolidated financial statements are, and audited financial statements to be included in subsequently filed documents will be, incorporated herein in reliance upon the reports of Ernst & Young LLP pertaining to such financial statements and the effectiveness of our internal control over financial reporting as of the respective dates (to the extent covered by consents filed with the Securities and Exchange Commission) given on the authority of such firm as experts in accounting and auditing.

INFORMATION INCORPORATED BY REFERENCE

This prospectus supplement and the accompanying prospectus are part of a registration statement that we have filed with the SEC. The SEC allows us to “incorporate by reference” the information that we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be part of this prospectus supplement and the accompanying prospectus from the date we file that document. Any documents filed by us under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act with the SEC (including those portions of our Definitive Proxy Statement on Schedule 14A, as filed with the SEC, specifically incorporated by reference in our Annual Report on Form 10-K or amendments thereto); after the date of this prospectus supplement and before the date that the offering of Notes by means of this prospectus supplement and accompanying prospectus is terminated will automatically update and, where applicable, supersede any information contained or incorporated by reference in this prospectus supplement and accompanying prospectus. We incorporate by reference into this prospectus supplement and the accompanying prospectus the following documents or information filed with the SEC (other than, in each case, documents or information deemed to have been furnished and not filed in accordance with SEC rules):

•

Our Annual Report on Form 10-K for the year ended December 31, 2020 filed with the SEC on March 16, 2021;

•

Our Definitive Proxy Statement on Schedule 14A, filed with the SEC on April 21, 2021 (excluding those portions that are not incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2020);

•

Our Quarterly Report on Form 10-Q for the quarters ended March 31, 2021 and June 30, 2021, filed with the SEC on May 10, 2021 and August 9, 2021, respectively; and

•

Our Current Reports on Form 8-K filed with the SEC on March 10, 2021, May 10, 2021, June 16, 2021, June 30, 2021, July 16, 2021, July 27, 2021 and August 9, 2021.

We will provide without charge to each person, including any beneficial owner, to whom this prospectus supplement and the accompanying prospectus are delivered, upon his or her written or oral request, a copy of any or all documents referred to above that have been or may be incorporated by reference into this prospectus supplement and the accompanying prospectus, excluding exhibits to those documents unless they are specifically incorporated by reference into those documents. You may request those documents from us by contacting us at the following address:

Synchronoss Technologies, Inc.
Attn: Investor Relations
200 Crossing Blvd.
Bridgewater, New Jersey 08807
(866) 620-3940

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WHERE YOU CAN FIND MORE INFORMATION

We are currently subject to the information requirements of the Exchange Act, and in accordance therewith file periodic reports, proxy statements and other information with the SEC. Our filings with the SEC are available to the public from the SEC’s website at www.sec.gov. You may also access the documents incorporated by reference in this prospectus through our website at www.synchronoss.com. Except for the specific incorporated documents listed above, no information available on or through our website shall be deemed to be incorporated in this prospectus supplement or the registration statement of which it forms a part.

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PROSPECTUS

$250,000,000

Common Stock
Preferred Stock
Debt Securities
Guarantees of Debt Securities
Warrants
Units

We may offer and sell from time to time, in one or more series or issuances and on terms that we will determine at the time of the offering, any combination of the securities described in this prospectus, up to an aggregate amount of $250,000,000.

We will provide specific terms of any offering in a supplement to this prospectus. Any prospectus supplement may also add, update, or change information contained in this prospectus. You should carefully read this prospectus and the applicable prospectus supplement or issuer free writing prospectus relating to a particular offering as well as the documents incorporated or deemed to be incorporated by reference in this prospectus before you purchase any of the securities offered hereby.

We may offer and sell these securities in the same offering or in separate offerings; to or through underwriters, dealers, and agents; or directly to purchasers. The names of any underwriters, dealers, or agents involved in the sale of our securities, their compensation and any over-allotment options held by them will be described in the applicable prospectus supplement. None of our securities may be sold without delivery of the applicable prospectus supplement describing the method and terms of the offering of those securities. See “Plan of Distribution.”

Our common stock is listed on The Nasdaq Global Select Market under the symbol “SNCR.” On August 18, 2020, the last reported sale price for our common stock was $4.31 per share. We will provide information in any applicable prospectus supplement regarding any listing of securities other than shares of our common stock on any securities exchange.

INVESTING IN OUR SECURITIES INVOLVES SIGNIFICANT RISKS. SEE “RISK FACTORS” BEGINNING ON PAGE 4 OF THIS PROSPECTUS AND ANY SIMILAR SECTION CONTAINED AND IN THE APPLICABLE PROSPECTUS SUPPLEMENT CONCERNING FACTORS YOU SHOULD CONSIDER BEFORE INVESTING IN OUR SECURITIES.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this prospectus is August 28, 2020

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	Page
ABOUT THIS PROSPECTUS		ii
PROSPECTUS SUMMARY		1
RISK FACTORS		4
FORWARD-LOOKING STATEMENTS		4
USE OF PROCEEDS		5
DESCRIPTION OF SECURITIES WE MAY OFFER		6
DESCRIPTION OF SECURITIES		6
DESCRIPTION OF DEBT SECURITIES AND GUARANTEES		11
DESCRIPTION OF WARRANTS		19
DESCRIPTION OF UNITS		21
LEGAL OWNERSHIP OF SECURITIES		22
PLAN OF DISTRIBUTION		25
LEGAL MATTERS		28
EXPERTS		28
WHERE YOU CAN FIND MORE INFORMATION		28
INFORMATION INCORPORATED BY REFERENCE		29

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ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement on Form S-3 that we filed with the United States Securities and Exchange Commission, or the SEC, using a “shelf” registration process. Under this shelf process, we may, from time to time, sell any combination of the securities described in this prospectus in one or more offerings up to a total amount of $250,000,000.

This prospectus provides you with a general description of the securities we may offer. Each time we sell securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may include a discussion of any risk factors or other special considerations that apply to those securities. The prospectus supplement may also add to, update or change information contained in the prospectus and, accordingly, to the extent inconsistent, information in this prospectus is superseded by the information in the prospectus supplement.

The prospectus supplement to be attached to the front of this prospectus may describe, as applicable: the terms of the securities offered; the initial or secondary public offering price; the price paid for the securities; net proceeds; and the other specific terms related to the offering of the securities.

You should only rely on the information contained or incorporated by reference in this prospectus and any prospectus supplement or issuer free writing prospectus relating to a particular offering. No person has been authorized to give any information or make any representations in connection with this offering other than those contained or incorporated by reference in this prospectus, any accompanying prospectus supplement and any related issuer free writing prospectus in connection with the offering described herein and therein, and, if given or made, such information or representations must not be relied upon as having been authorized by us. Neither this prospectus nor any prospectus supplement nor any related issuer free writing prospectus shall constitute an offer to sell or a solicitation of an offer to buy offered securities in any jurisdiction in which it is unlawful for such person to make such an offering or solicitation. This prospectus does not contain all of the information included in the registration statement. For a more complete understanding of the offering of the securities, you should refer to the registration statement, including its exhibits.

You should read the entire prospectus and any prospectus supplement and any related issuer free writing prospectus, as well as the documents incorporated by reference into this prospectus or any prospectus supplement or any related issuer free writing prospectus, before making an investment decision. Neither the delivery of this prospectus or any prospectus supplement or any issuer free writing prospectus nor any sale made hereunder shall under any circumstances imply that the information contained or incorporated by reference herein or in any prospectus supplement or issuer free writing prospectus is correct as of any date subsequent to the date hereof or of such prospectus supplement or issuer free writing prospectus, as applicable. You should assume that the information appearing in this prospectus, any prospectus supplement or any document incorporated by reference is accurate only as of the date of the applicable documents, regardless of the time of delivery of this prospectus or any sale of securities. Our business, financial condition, results of operations and prospects may have changed since that date.

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PROSPECTUS SUMMARY

This summary description about us and our business highlights selected information contained elsewhere in this prospectus or incorporated in this prospectus by reference. This summary does not contain all of the information you should consider before buying securities in this offering. You should carefully read this entire prospectus and any applicable prospectus supplement, including each of the documents incorporated herein or therein by reference, before making an investment decision. As used in this prospectus, “we,” “us,” “Synchronoss” and “our” refer to Synchronoss Technologies, Inc., a Delaware corporation.

Overview

Our Digital, Cloud, Messaging and Internet of Things (“IoT”) platforms help the world’s leading companies, including operators, original equipment manufacturers (“OEMs”), as well as Media and Technology providers, compete in today’s markets by delivering innovative customer experiences that create high value engagement, save costs and create new monetization opportunities. With the help of our technologies and solutions, leading global companies can routinely create game changing interactions with their customers that were previously considered unachievable. Our technologies act as a catalyst to enable and unlock new capabilities in our customers’ organizations, creating new value through new experiences for their end users.

We market our solutions and services directly through our sales organizations in the Americas, Europe, Middle East and Africa (“EMEA”) and Asia-Pacific (“APAC”). Our platforms give our customers new opportunities in the Telecommunications, Media and Technology (“TMT”) space, taking advantage of the rapidly converging services, connected devices, networks and applications. Our platforms power products and solutions across the TMT marketplace allow our customers to create forward-looking and compelling customer experiences with less resources.

We deliver platforms, products and solutions including:

•

Cloud sync, backup, storage, device set up, content transfer and content engagement for user generated content

•

Advanced, multi-channel messaging peer-to-peer (“P2P”) communications and application-to-person (“A2P”) commerce solutions

•

Digital experience management (“Platform as a Service” or “PaaS”)—including digital journey creation, journey design products and IoT systems management technology for Smart Buildings, Smart Cities, and more.

We help our customers accelerate and monetize value-add services for secure and broadband networks and connected devices. Our technologies appeal to a diverse group of customers in a converging TMT space including:

•

Communication service providers (“CSP”)

•

Cable operators/multi-services operators (“MSO”)

•

Media and Technology Companies with multi-customer-facing channels in global markets

•

OEMs with embedded connectivity (e.g. smartphones, laptops, tablets and mobile internet devices)

•

IoT ecosystem participants who use a variety of technologies (e.g. Blockchain) to enable a wide array of devices (e.g. smart buildings, automobiles, connected homes, etc.) sensors, networks and systems.

Our industry-leading customers include Tier 1 mobile service providers such as AT&T Inc., BT, Verizon Wireless, Vodafone, Orange, Sprint, T-Mobile and Telstra; Tier 1 cable operators/MSOs and wireline operators like AT&T Inc., Comcast, Cablevision, Charter, CenturyLink, Mediacom and Level 3 Communications; and large OEMs such as Apple and Ericsson. These customers utilize our platforms, technology and services to service both consumer and business customers. We also service technology leaders such as Microsoft, various global System Integrators and well-known household brands such as Amazon among others.

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Corporate Information

We were incorporated in Delaware in 2000. Our principal executive offices are located at 200 Crossing Blvd., Bridgewater, NJ 08807. Our main telephone number is (866) 620-3940. Our internet website is located at http://www.synchronoss.com. Information contained on our website is not part of the registration statement of which this prospectus is a part.

The Securities We May Offer

We may offer up to $250,000,000 of common stock, preferred stock, debt securities and warrants in one or more offerings and in any combination, including in units from time to time. This prospectus provides you with a general description of the securities we may offer. A prospectus supplement, which we will provide each time we offer securities, will describe the specific amounts, prices and terms of these securities.

Common Stock

Each holder of our common stock is entitled to one vote for each share on all matters to be voted upon by the stockholders, and there are no cumulative rights. Subject to any preferential rights of any outstanding preferred stock, holders of our common stock are entitled to receive ratably the dividends, if any, as may be declared from time to time by the board of directors out of funds legally available therefor. If there is a liquidation, dissolution or winding up of our company, holders of our common stock would be entitled to share in our assets remaining after the payment of liabilities and any preferential rights of any outstanding preferred stock. Our common stock is described in greater detail in this prospectus under “Description of Securities—Common Stock.”

Preferred Stock

Under the terms of our amended and restated certificate of incorporation, our board of directors is authorized to issue shares of preferred stock in one or more series without stockholder approval. Our board of directors has the discretion to determine the rights, preferences, privileges and restrictions, including voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, of each series of preferred stock.

Each new series of preferred stock, if issued, will be more fully described in the particular prospectus supplement that will accompany this prospectus, including redemption provisions, rights in the event of our liquidation, dissolution or winding up, voting rights and rights to convert into common stock. We have no present plans to issue any shares of preferred stock. Our preferred stock is described in greater detail in this prospectus under “Description of Securities—Preferred Stock.”

Debt Securities

The debt securities may be senior or subordinated in right of payment. For any particular debt securities we offer, the applicable prospectus supplement will describe the title and series of the debt securities, the aggregate principal amount and the original issue price; the ranking, whether senior or subordinated; the stated maturity; the redemption terms, if any; the rate or manner of calculating the rate and the payment dates for interest; the amount or manner of calculating the amount payable at maturity and whether that amount may be paid by delivering cash, securities or other property; the terms on which the debt securities may be convertible into or exchangeable for common stock or other securities of Synchronoss Technologies, Inc., or any other entity, if any; and any other specific terms. We will issue the debt securities under an indenture, as described in “Description of Debt Securities and Guarantees.”

Warrants

We may issue warrants for the purchase of common stock, preferred stock or debt securities. We may issue warrants independently or together with other securities.

The warrants will be evidenced by warrant certificates issued under one or more warrant agreements, which are contracts between us and an agent for the holders of the warrants. In this prospectus, we have summarized certain general features of the warrants under “Description of Warrants.” We urge you, however,

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to read the prospectus supplements and any free writing prospectus that we may authorize to be provided to you related to the series of warrants being offered, as well as the complete warrant agreements and warrant certificates that contain the terms of the warrants. Specific warrant agreements will contain additional important terms and provisions and will be incorporated by reference as an exhibit to the registration statement which includes this prospectus.

Units

We may issue units comprised of one or more of the other classes of securities issued by us as described in this prospectus in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Units are described in greater detail in this prospectus under “Description of Units.”

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RISK FACTORS

An investment in our securities involves a high degree of risk. The prospectus supplement applicable to each offering of our securities will contain a discussion of the risks applicable to an investment in our securities. Prior to making a decision about investing in our securities, you should carefully consider the specific factors discussed under the heading “Risk Factors” in the applicable prospectus supplement, together with all of the other information contained or incorporated by reference in the prospectus supplement or appearing or incorporated by reference in this prospectus. You should also consider the risks, uncertainties and assumptions discussed under Item 1A, “Risk Factors,” in our most recent Annual Report on Form 10-K and in our Quarterly Reports on Form 10-Q filed subsequent to such Annual Report on Form 10-K, as well as any amendments thereto, all of which are incorporated herein by reference, and may be amended, supplemented or superseded from time to time by other reports we file with the SEC in the future and by information contained in any prospectus supplement related to a particular offering. The risks and uncertainties we have described are not the only ones we face. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our operations.

FORWARD-LOOKING STATEMENTS

This prospectus, each prospectus supplement and the information incorporated by reference in this prospectus and each prospectus supplement contain certain statements that constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended. The words “anticipate,” “expect,” “believe,” “goal,” “plan,” “intend,” “estimate,” “may,” “will,” and similar expressions and variations thereof are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. Those statements appear in this prospectus, any accompanying prospectus supplement and the documents incorporated herein and therein by reference, particularly in the sections entitled “Prospectus Summary,” “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Business,” and include statements regarding the intent, belief or current expectations of the Company and management that are subject to known and unknown risks, uncertainties and assumptions.

This prospectus, any prospectus supplement and the information incorporated by reference in this prospectus and any prospectus supplement also contain statements that are based on the current expectations of our company and management. You are cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, and that actual results may differ materially from those projected in the forward-looking statements as a result of various factors.

Because forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, you should not rely upon forward-looking statements as predictions of future events. The events and circumstances reflected in the forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. The risks, uncertainties and assumptions that could cause actual results to differ materially from those anticipated or implied in our forward-looking statements include, but are not limited to, those set forth above under the section entitled “Risk Factors” and in the applicable prospectus supplement, together with all of the other information contained in or incorporated by reference into the prospectus supplement or appearing or incorporated by reference into this prospectus.

Except as required by applicable law, including the securities laws of the United States and the rules and regulations of the SEC, we do not plan to publicly update or revise any forward-looking statements contained herein after we distribute this prospectus, whether as a result of any new information, future events or otherwise.

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USE OF PROCEEDS

Unless otherwise indicated in the prospectus supplement, we plan to use the net proceeds from the sale of securities offered by this prospectus to redeem the outstanding shares of the Company’s Series A Convertible Participating Perpetual Preferred Stock for an aggregate of up to $250,000,000 from Silver Private Holdings I, LLC, a greater than 5% stockholder of the Company, and for general corporate purposes, which may include, among other purposes, working capital, capital expenditures, other corporate expenses and acquisitions of assets, licenses, products, technologies or businesses. The timing and amount of our actual expenditures will be based on many factors, including cash flows from operations and the anticipated growth of our business. As a result, unless otherwise indicated in the prospectus supplement, our management will have broad discretion to allocate the net proceeds of the offerings. Pending their ultimate use, we intend to invest the net proceeds in short-term, investment-grade, interest-bearing instruments.

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DESCRIPTION OF SECURITIES WE MAY OFFER

We may offer under this prospectus up to $250,000,000 of common stock, preferred stock, debt securities and warrants in one or more offerings and in any combination, including in units from time to time as described below. This prospectus provides you with a general description of the securities we may offer. A prospectus supplement, which we will provide each time we offer securities, will describe the specific amounts, prices and terms of these securities. Each time we offer a type or series of securities, we will provide a prospectus supplement that will describe the specific amounts, prices and other important terms of the securities.

DESCRIPTION OF SECURITIES

The following information describes our common stock and preferred stock, as well as certain provisions of our amended and restated certificate of incorporation and amended and restated bylaws. This description is only a summary. You should also refer to our amended and restated certificate of incorporation and amended and restated bylaws, which have been filed with the SEC as exhibits to our registration statement, of which this prospectus forms a part.

General

Our authorized capital stock consists of 100,000,000 shares of common stock, with a $0.0001 par value per share, and 10,000,000 shares of preferred stock, with a $0.0001 par value per share, 10,000 of which shares of preferred stock are designated Series A Convertible Participating Perpetual Preferred Stock (“Series A Preferred Stock”).

As of June 30, 2020, there were 44,456,847 shares of common stock issued and outstanding, held of record by 52 stockholders, although we believe that there may be a significantly larger number of beneficial owners of our common stock. We derived the number of stockholders by reviewing the listing of outstanding common stock recorded by our transfer agent as of June 30, 2020.

As of June 30, 2020, there were 233,217 shares of Series A Preferred Stock issued and outstanding, held of record by 1 stockholder.

Common Stock

The holders of common stock are entitled to one vote per share on all matters to be voted upon by the stockholders. The holders of common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by the board of directors out of funds legally available, subject to preferences that may be applicable to preferred stock, if any, then outstanding. In the event of a liquidation, dissolution or winding up of our company, the holders of common stock are entitled to share ratably in all assets remaining after payment of liabilities, subject to prior distribution rights of preferred stock, if any, then outstanding. The common stock has no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to the common stock. All outstanding shares of common stock are fully paid and non-assessable.

The rights, preferences and privileges of the holders of our common stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate and issue in the future.

Our common stock is listed on The Nasdaq Global Select Market under the symbol “SNCR.” The transfer agent and registrar for the common stock is American Stock Transfer & Trust Company. Its address is 6201 15th Avenue, Brooklyn, NY 11219, and its telephone number is (800) 937-5449.

Preferred Stock

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voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, of each series of preferred stock. There are no restrictions presently on the repurchase or redemption of any shares of our preferred stock.

Series A Convertible Participating Perpetual Preferred Stock

In accordance with the terms of the Securities Purchase Agreement dated as of October 17, 2017 (the “PIPE Purchase Agreement”), with Silver Private Holdings I, LLC, an affiliate of Siris Capital Group, LLC (“Silver”), on February 15, 2018, we issued to Silver 185,000 shares of our newly created Series A Preferred Stock, with an initial liquidation preference of $1,000 per share, in exchange for $97.7 million in cash and the transfer from Silver to us of the 5,994,667 shares of our common stock held by Silver (the “Preferred Transaction”). In connection with the issuance of the Series A Preferred Stock, we (i) filed the certificate of designations to its certificate of incorporation to establish the rights, preferences, privileges, qualifications, restrictions and limitations of the Series A Preferred Stock (the “Series A Certificate”) and (ii) entered into an Investor Rights Agreement with Silver setting forth certain registration, governance and preemptive rights of Silver with respect to us (the “Investor Rights Agreement”). Pursuant to the PIPE Purchase Agreement, at the closing, we paid to Siris $5.0 million as a reimbursement of Silver’s reasonable costs and expenses incurred in connection with the Preferred Transaction.

Certificate of Designation of the Series A Preferred Stock

The rights, preferences, privileges, qualifications, restrictions and limitations of the shares of Series A Preferred Stock are set forth in the Series A Certificate. Under the Series A Certificate, the holders of the Series A Preferred Stock are entitled to receive, on each share of Series A Preferred Stock on a quarterly basis, an amount equal to the dividend rate of 14.5% divided by four and multiplied by the then-applicable Liquidation Preference (as defined in the Series A Certificate) per share of Series A Preferred Stock (collectively, the “Preferred Dividends”). The Preferred Dividends are due on January 1, April 1, July 1 and October 1 of each year (each, a “Series A Dividend Payment Date”). Synchronoss may choose to pay the Preferred Dividends in cash or in additional shares of Series A Preferred Stock. In the event Synchronoss does not declare and pay a dividend in-kind or in cash on any Series A Dividend Payment Date, the unpaid amount of the Preferred Dividend will be added to the Liquidation Preference. In addition, the Series A Preferred Stock participates in dividends declared and paid on shares of common stock.

Each share of Series A Preferred Stock is convertible, at the option of the holder, into the number of shares of common stock equal to the “Conversion Price” (as that term is defined in the Series A Certificate) multiplied by the then applicable “Conversion Rate” (as that term is defined in the Series A Certificate). Each share of Series A Preferred Stock was initially convertible into 55.5556 shares of common stock, representing an initial “conversion price” of approximately $18.00 per share of common stock. The Conversion Rate is subject to equitable proportionate adjustment in the event of stock splits, recapitalizations and other events set forth in the Series A Certificate.

On and after February 15, 2023, holders of shares of Series A Preferred Stock have the right to cause Synchronoss to redeem each share of Series A Preferred Stock for cash in an amount equal to the sum of the current liquidation preference and any accrued dividends. Each share of Series A Preferred Stock is also redeemable at the option of the holder upon the occurrence of a “Fundamental Change” (as that term is defined in the Series A Certificate) at a specified premium. In addition, the Company is also permitted to redeem all outstanding shares of the Series A Preferred Stock (i) at any time prior to August 15, 2020 for the sum of the then-applicable Liquidation Preference, accrued but unpaid dividends and a make whole amount and (ii) at any time following August 15, 2020 for the sum of the then-applicable Liquidation Preference and the accrued but unpaid dividends.

The holders of a majority of the Series A Preferred Stock, voting separately as a class, are entitled at each annual meeting of the stockholders of the Company or at any special meeting called for the purpose of electing directors (or by written consent signed by the holders of a majority of the then-outstanding shares of Series A Preferred Stock in lieu of such a meeting): (i) to nominate and elect two members of the Board of Directors of Synchronoss for so long as the Preferred Percentage (as defined in the Series A

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Certificate) is equal to or greater than 10%; and (ii) to nominate and elect one member of the Board of Directors of Synchronoss for so long as the Preferred Percentage is equal to or greater than 5% but less than 10%.

For so long as the holders of shares of Series A Preferred Stock have the right to nominate at least one director, Synchronoss shall be required to obtain the prior approval of Silver Holdings prior to taking certain actions, including: (i) certain dividends, repayments and redemptions; (ii) any amendment to Synchronoss’ certificate of incorporation that adversely effects the rights, preferences, privileges or voting powers of the Series A Preferred Stock; (iii) issuances of stock ranking senior or equivalent to shares of Series A Preferred Stock (including additional shares of Series A Preferred Stock) in the priority of payment of dividends or in the distribution of assets upon any liquidation, dissolution or winding up of Synchronoss; (iv) changes in the size of the Board of Directors of Synchronoss; (v) any amendment, alteration, modification or repeal of the charter of the Nominating and Corporate Governance Committee of the Board of Directors and related documents; and (vi) any change in the principal business of Synchronoss or the entry into any line of business outside of its existing lines of businesses. In addition, in the event that Synchronoss is in EBITDA Non-Compliance (as defined in the Series A Certificate) or the undertaking of certain actions would result in Synchronoss exceeding a specified pro forma leverage ratio, then the prior approval of Silver Holdings would be required to incur indebtedness (or alter any debt document) in excess of $10 million, enter or consummate any transaction where the fair market value exceeds $5 million individually or $10 million in the aggregate in a fiscal year or authorize or commit to capital expenditures in excess of $25 million in a fiscal year.

Each holder of Series A Preferred Stock has one vote per share on any matter on which holders of Series A Preferred Stock are entitled to vote separately as a class, whether at a meeting or by written consent. The holders of Series A Preferred Stock are permitted to take any action or consent to any action with respect to such rights without a meeting by delivering a consent in writing or electronic transmission of the holders of the Series A Preferred Stock entitled to cast not less than the minimum number of votes that would be necessary to authorize, take or consent to such action at a meeting of stockholders. In addition to any vote (or action taken by written consent) of the holders of the shares of Series A Preferred Stock as a separate class provided for in the Series A Certificate or by the General Corporation Law of the State of Delaware, the holders of shares of the Series A Preferred Stock are entitled to vote with the holders of shares of common stock (and any other class or series that may similarly be entitled to vote on an as-converted basis with the holders of common stock) on all matters submitted to a vote or to the consent of the stockholders of the Company (including the election of directors) as one class.

Under the Series A Certificate, if Silver Holdings and certain of its affiliates have elected to effect a conversion of some or all of their shares of Series A Preferred Stock and if the sum, without duplication, of (i) the aggregate number of shares of common stock issued to such holders upon such conversion and any shares of common stock previously issued to such holders upon conversion of Series A Preferred Stock and then held by such holders, plus (ii) the number of shares of common stock underlying shares of Series A Preferred Stock that would be held at such time by such holders (after giving effect to such conversion), would exceed the 19.9% of the issued and outstanding shares of Synchronoss’ voting stock on an as converted basis (the “Conversion Cap”), then such holders would only be entitled to convert such number of shares as would result in the sum of clauses (i) and (ii) (after giving effect to such conversion) being equal to the Conversion Cap (after giving effect to any such limitation on conversion). Any shares of Series A Preferred Stock which a holder has elected to convert but which, by reason of the previous sentence, are not so converted, will be treated as if the holder had not made such election to convert and such shares of Series A Preferred Stock will remain outstanding. Also, under the Series A Certificate, if the sum, without duplication, of (i) the aggregate voting power of the shares previously issued to Silver Holdings and certain of its affiliates held by such holders at the record date, plus (ii) the aggregate voting power of the shares of Series A Preferred Stock held by such holders as of such record date, would exceed 19.99% of the total voting power of Synchronoss’ outstanding voting stock at such record date, then, with respect to such shares, Silver Holdings and certain of its affiliates are only entitled to cast a number of votes equal to 19.99% of such total voting power (the “Voting Limitation”). The limitation on conversion and voting ceases to apply upon receipt of the requisite approval of holders of common stock under the applicable listing standards.

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Investor Rights Agreement

Concurrently with the closing of the Preferred Transaction, Synchronoss and Silver Holdings entered into the Investor Rights Agreement. Under the terms of the Investor Rights Agreement, Silver Holdings and Synchronoss have agreed that the Board of Directors of Synchronoss will consist of ten members. So long as the holders of Series A Preferred have the right to nominate a member to the Board of Directors pursuant to the Series A Certificate, the full Board of Directors of Synchronoss will be constituted as follows: (i) two Series A Preferred Directors (as defined in the Investor Rights Agreement); (ii) four directors who meet the independence criteria set forth in the applicable listing standards (each of whom will be initially agreed upon by Synchronoss and Silver Holdings); and (iii) four other directors, two of whom shall satisfy the independence criteria of the applicable listing standards and, as of the closing of the Preferred Transaction, one of whom shall be the individual then serving as chief executive officer of Synchronoss and one of whom shall be the current chairman of the Board of Directors of Synchronoss as of the date of execution of the Investors Rights Agreement. So long as the holders of Series A Preferred have the right to nominate at least one director to the Board of Directors of Synchronoss pursuant to the Series A Certificate, Silver Holdings will have the right to designate two members of the Nominating and Corporate Governance Committee of the Board of Directors. Pursuant to the terms of the Investor Rights Agreement, neither Silver Holdings nor its affiliates may transfer any shares of Series A Preferred Stock subject to certain exceptions (including transfers to affiliates that agree to be bound by the terms of the Investor Rights Agreement).

For so long as Silver Holdings has the right to appoint a director to the Board of Directors of Synchronoss, without the prior approval by a majority of directors voting who are not appointed by the holders of shares of Series A Preferred Stock, neither Silver Holdings nor its affiliates will directly or indirectly purchase or acquire any debt or equity securities of Synchronoss (including equity-linked derivative securities) if such purchase or acquisition would result in Silver Holdings’ Standstill Percentage (as defined in the Investors Rights Agreement) being in excess of 30%. However, the foregoing standstill restrictions would not prohibit the receipt of shares of Series A Preferred issued as Preferred Dividends pursuant to the Series A Certificate, shares of common stock received upon conversion of shares of Series A Preferred Stock or receipt of any shares of Series A Preferred Stock, common stock or other securities of the Company otherwise paid as dividends or as an increase of the Liquidation Preference (as defined in the Series A Certificate) or distributions thereon. Silver Holdings will also have preemptive rights with respect to issuances of securities of Synchronoss in order to maintain its ownership percentage.

Under the terms of the Investor Rights Agreement, Silver Holdings is entitled to (i) three demand registrations, with no more than two demand registrations in any single calendar year and provided that each demand registration must include at least 10% of the shares of common stock held by Silver Holdings, including shares of common stock issuable upon conversion of shares of Series A Preferred Stock and (ii) unlimited piggyback registration rights with respect to primary issuances and all other issuances.

Undesignated Preferred Stock

The following description of preferred stock and the description of the terms of any particular series of preferred stock that we choose to issue hereunder and that will be set forth in the related prospectus supplement are not complete. These descriptions are qualified in their entirety by reference to our amended and restated certificate of incorporation and the certificate of designation relating to any series. The rights, preferences, privileges and restrictions of the preferred stock of each series will be fixed by the certificate of designation relating to that series. The prospectus supplement also will contain a description of certain United States federal income tax consequences relating to the purchase and ownership of the series of preferred stock that is described in the prospectus supplement.

The prospectus supplement for a series of preferred stock will specify:

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the maximum number of shares;

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the designation of the shares;

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the annual dividend rate, if any, whether the dividend rate is fixed or variable, the date or dates on which dividends will accrue, the dividend payment dates, and whether dividends will be cumulative;

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the price and the terms and conditions for redemption, if any, including redemption at our option or at the option of the holders, including the time period for redemption, and any accumulated dividends or premiums;

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the liquidation preference, if any, and any accumulated dividends upon the liquidation, dissolution or winding up of our affairs;

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any sinking fund or similar provision, and, if so, the terms and provisions relating to the purpose and operation of the fund;

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the terms and conditions, if any, for conversion or exchange of shares of any other class or classes of our capital stock or any series of any other class or classes, or of any other series of the same class, or any other securities or assets, including the price or the rate of conversion or exchange and the method, if any, of adjustment;

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the voting rights; and

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any or all other preferences and relative, participating, optional or other special rights, privileges or qualifications, limitations or restrictions.

The issuance of preferred stock will affect, and may adversely affect, the rights of holders of common stock. It is not possible to state the actual effect of the issuance of any shares of preferred stock on the rights of holders of common stock until the board of directors determines the specific rights attached to that preferred stock. The effects of issuing preferred stock could include one or more of the following:

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restricting dividends on the common stock;

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diluting the voting power of the common stock;

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impairing the liquidation rights of the common stock; or

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delaying or preventing changes in control or management of our company.

We have no present plans to issue any shares of preferred stock. Preferred stock will be fully paid and nonassessable upon issuance.

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DESCRIPTION OF DEBT SECURITIES AND GUARANTEES

We may issue debt securities in one or more distinct series. This section summarizes the material terms of the debt securities that are expected to be common to all series. Most of the financial terms and other specific material terms, as well as any material U.S. federal income tax consequences, of any series of debt securities that we offer will be described in a prospectus supplement or term sheet to be attached to this prospectus. Since the terms of specific debt securities may differ from the general information provided below, you should read both this prospectus and the relevant prospectus supplement or term sheet and rely on information in the prospectus supplement or term sheet that supersedes any contrary or inconsistent information below.

As required by federal law for all bonds and notes of companies that are publicly offered, the debt securities will be governed by a document called an “indenture.” An indenture is a contract between us and a financial institution acting as trustee on your behalf. The trustee has two main roles. First, the trustee can enforce your rights against us if we default. There are some limitations on the extent to which the trustee acts on your behalf, described in the second paragraph under “Events of Default.” Second, the trustee performs certain administrative duties for us. Senior or subordinated debt securities will be issued by us under an indenture or indentures as supplemented from time to time (the “indenture”), between us, as issuer, and a trustee identified in the relevant prospectus supplement (the “trustee”). The debt securities may be guaranteed by one or more of our subsidiaries. The indenture will be subject to and governed by the Trust Indenture Act of 1939, as amended (the “TIA”). The terms “we,” “our” and “us,” when used to refer to an issuer of securities, means Synchronoss Technologies, Inc.

Because this section is a summary, it does not describe every aspect of the debt securities and the indenture. We urge you to read the indenture because it, and not this description, defines your rights as a holder of debt securities. For example, in this section, we use capitalized words to signify terms that are specifically defined in the indenture. Some of the definitions are repeated in this prospectus, or in the relevant prospectus supplement, but for the rest you will need to read the indenture. See “Where You Can Find More Information” for information on how to locate the indenture and any supplemental indentures that may be filed.

General Provisions of the Indenture

Unless otherwise specified in a prospectus supplement or term sheet for a particular series, the debt securities covered by this prospectus will be direct, unsecured obligations of Synchronoss. Any senior securities will be unsecured and will rank equally with all other unsecured and unsubordinated indebtedness of Synchronoss. Any subordinated securities will be unsecured and will be subordinated in right of payment to the prior payment in full of the senior indebtedness of Synchronoss, as more fully described in a prospectus supplement or term sheet.

The indenture provides that any debt securities proposed to be sold under this prospectus and an attached prospectus supplement or term sheet (“offered debt securities”) and any debt securities issuable upon the exercise of debt warrants or upon conversion or exchange of other offered securities (“underlying debt securities”), as well as other debt securities, may be issued under the indenture in one or more series. Any secured indebtedness of ours will rank ahead of the debt securities to the extent of the value of the assets securing such indebtedness.

You should read the prospectus supplement or term sheet for the material terms of the offered debt securities and any underlying debt securities, including the following:

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the title of the debt securities and whether the debt securities will be senior securities or subordinated securities of Synchronoss;

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the total principal amount of the debt securities of the series and any limit on such total principal amount;

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if not the principal amount of the debt securities, the portion of the principal amount payable upon acceleration of the maturity of the debt securities or how this portion will be determined;

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the date or dates, or how the date or dates will be determined or may be extended, when the principal of the debt securities will be payable;

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the interest rate or rates, which may be fixed or variable, that the debt securities will bear, if any, or how the rate or rates will be determined, the date or dates from which any interest will accrue or how the date or dates will be determined, the interest payment dates, any record dates for these payments, whether payments of interest will be made in cash or in kind and the basis upon which interest will be calculated if other than that of a 360-day year of twelve 30-day months;

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any optional redemption provisions;

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any sinking fund or other provisions that would obligate us to repurchase or otherwise redeem the debt securities;

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the form in which we will issue the debt securities and whether we will have the option of issuing debt securities in “certificated” form;

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if other than U.S. dollars, the currency or currencies in which the debt securities are denominated and/or payable;

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whether the amount of payments of principal, premium or interest, if any, on the debt securities will be determined with reference to an index, formula or other method (which index, formula or method may be based, without limitation, on one or more currencies, commodities, equity indices or other indices), and how these amounts will be determined;

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the place or places, if any, other than or in addition to The City of New York, of payment, transfer, conversion and/or exchange of the debt securities;

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if other than minimum denominations of $2,000 or any integral multiple of $1,000 above the minimum denomination in the case of registered securities issued in certificated form, the denominations in which the offered debt securities will be issued;

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if the provisions of Article Fourteen of the indenture described under “defeasance” are not applicable and any provisions in modification of, in addition to or in lieu of any of these provisions;

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whether and under what circumstances we will pay additional amounts, as contemplated by Section 1010 of the indenture, in respect of any tax, assessment or governmental charge and, if so, whether we will have the option to redeem the debt securities rather than pay the additional amounts (and the terms of this option);

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whether the debt securities are subordinated and the terms of such subordination;

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any provisions granting special rights to the holders of the debt securities upon the occurrence of specified events;

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any changes or additions to the Events of Default or covenants contained in the applicable indenture;

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whether the debt securities will be convertible into or exchangeable for any other securities and the applicable terms and conditions;

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whether the debt securities are guaranteed; and

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any other material terms of the debt securities.

For purposes of this prospectus, any reference to the payment of principal of or premium or interest, if any, on the debt securities will include additional amounts if required by the terms of the debt securities.

The indenture does not limit the amount of debt securities that may be issued thereunder from time to time. Debt securities issued under the indenture when a single trustee is acting for all debt securities issued under the indenture are called the “indenture securities.” The indenture also provides that there may be more than one trustee thereunder, each with respect to one or more different series of indenture securities. See “—Resignation of Trustee” below. At a time when two or more trustees are acting under the indenture, each with respect to only certain series, the term “indenture securities” means the one or more series of debt securities with respect to which each respective trustee is acting. In the event that there is more than one

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trustee under the indenture, the powers and trust obligations of each trustee described in this prospectus will extend only to the one or more series of indenture securities for which it is trustee. If two or more trustees are acting under the indenture, then the indenture securities for which each trustee is acting would be treated as if issued under separate indentures.

The indenture does not contain any provisions that give you protection in the event we issue a large amount of debt, we repurchase a significant amount of equity or effect a recapitalization, or we are acquired by another entity.

We refer you to the applicable prospectus supplement or term sheet for information with respect to any deletions from, modifications of or additions to the Events of Default or our covenants that are described below, including any addition of a covenant or other provision providing event risk or similar protection.

We have the ability to issue indenture securities with terms different from those of indenture securities previously issued and, without the consent of the holders thereof, to reopen a previous issue of a series of indenture securities and issue additional indenture securities of that series unless the reopening was restricted when that series was created. Any additional indenture securities, together with all other outstanding indenture securities of that series, will constitute a single series of indenture securities under the indenture.

Unless otherwise specified in the applicable prospectus supplement or term sheet, the debt securities will be denominated in U.S. dollars and all payments on the debt securities will be made in U.S. dollars.

Payment of the purchase price of the debt securities must be made in immediately available funds.

The authorized denominations of debt securities denominated in U.S. dollars will be a minimum denomination of $2,000 and integral multiples of $1,000 above the minimum denomination. The authorized denominations of foreign currency notes will be set forth in the applicable prospectus supplement or term sheet.

Interest and Interest Rates

Each debt security will begin to accrue interest from the date it is originally issued. The related prospectus supplement or term sheet will describe the method of determining the interest rate.

Interest on the debt securities other than in global form denominated in U.S. dollars will be paid by check mailed on an interest payment date to the persons entitled thereto to the addresses of such holders as they appear in the security register or, at our option, by wire transfer to a bank account maintained by the holder. The principal of, and premium, if any, and, if other than an interest payment date, interest on debt securities denominated in U.S. dollars, together with interest accrued and unpaid thereon, due on the maturity date will be paid in immediately available funds upon surrender of such debt securities at the corporate trust office of the trustee in The City of New York, or, at our option, by wire transfer of immediately available funds to an account with a bank designated at least 15 calendar days prior to the maturity date by the applicable registered holder, provided the particular bank has appropriate facilities to receive these payments and the particular note is presented and surrendered at the office or agency maintained by us for this purpose in the Borough of Manhattan, The City of New York, in time for the trustee to make these payments in accordance with its normal procedures.

Payment and Paying Agents

We will pay interest to the person listed in the trustee’s records as the owner of the debt security at the close of business on a particular day in advance of each regularly scheduled date for interest, even if that person no longer owns the debt security on the interest due date. That day, typically set at a date approximately two weeks prior to the interest due date, is called the “record date.” Because we will pay all the interest for an interest period to the holders on the record date, holders buying and selling debt securities must work out between themselves the appropriate purchase price. The most common manner is to adjust the sales price of the debt securities to prorate interest fairly between buyer and seller based on their respective ownership periods within the particular interest period. This prorated interest amount is called “accrued interest.”

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Payments on Global Securities

We will make payments on a global security in accordance with the applicable policies of the depositary as in effect from time to time. Under those policies, we will make payments directly to the depositary, or its nominee, and not to any indirect holders who own beneficial interests in the global security. An indirect holder’s right to those payments will be governed by the rules and practices of the depositary and its participants.

Payments on Certificated Debt Securities

We will make payments on a certificated debt security as follows. We will pay interest that is due on an interest payment date by check mailed on the interest payment date to the holder at his or her address shown on the trustee’s records as of the close of business on the regular record date. We will make payments of principal and premium, if any, duly and punctually to the office of the trustee.

Alternatively, if the holder asks us to do so, we may pay any amount that becomes due on the debt security by wire transfer of immediately available funds to an account at a bank in New York City, on the due date. To request payment by wire, the holder must give the trustee or other paying agent appropriate transfer instructions at least 15 calendar days before the requested wire payment is due. In the case of any interest payment due on an interest payment date, the instructions must be given by the person who is the holder on the relevant regular record date. Any wire instructions, once properly given, will remain in effect unless and until new instructions are given in the manner described above. In addition, see the description under “Interest and Interest Rates.”

Material Covenants

The prospectus supplement or term sheet relating to a particular series of debt securities that we offer will describe the material covenants included in the indenture and will be subject to negotiation between the holder and us. Such material covenants may include covenants with respect to payments of principal, premium (if any) and interest and limitations or restrictions with respect to a consolidation, merger sale or conveyance of us, restrictions on liens, or other covenants, limitations or restrictions on us.

Events of Default

An event of default with respect to the debt securities of any series is defined in the indenture as:

(a)

default for 30 days in payment of any interest on the debt securities of such series when it becomes due and payable;

(b)

default in payment of principal of or any premium on the debt securities of such series at maturity or upon redemption or repayment when the same becomes due and payable;

(c)

default by us in the performance of any other covenant contained in the applicable indenture for the benefit of the debt securities of such series that has not been remedied by the end of a specified period of time after notice is given as specified in the indenture; and

(d)

certain events of bankruptcy, insolvency and reorganization of Synchronoss.

The prospectus supplement or term sheet relating to a particular series of debt securities that we offer will describe the events of default included in the indenture and will be subject to negotiation between the holder and us.

Modification of the Indenture

We and the trustee may, without the consent of the holders of the debt securities issued under such indenture, enter into supplemental indentures for, among others, one or more of the following purposes:

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to evidence the succession of another corporation to us and the assumption by such successor of its obligations under the indenture and the debt securities;

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to add covenants of Synchronoss or surrender any of its rights, or add any rights for the benefit of the holders of debt securities;

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to cure any ambiguity, omission, defect or inconsistency in such indenture;

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to establish the form or terms of any other series of debt securities, including any subordinated securities;

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to comply with requirements of the SEC in order to maintain the qualification of the indenture under the Trust Indenture Act;

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to evidence and provide the acceptance of any successor trustee with respect to the debt securities or one or more other series of debt securities under the indenture or to facilitate the administration of the trusts thereunder by one or more trustees in accordance with the indenture; and

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to provide any additional events of default;

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to add to, change or eliminate any of the provisions of the indentures in respect of one or more series of debt securities, provided that any such addition, change or elimination, shall become effective only when there is no security outstanding of any series created prior to the adoption of such addition, change or elimination;

•

to make any provisions with respect to the optional conversion rights of holders, including providing for the conversion of the debt securities into any other security or securities of ours, provided that such provisions are not adverse to the interests of the holders of any debt securities then outstanding;

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to add any guarantee of one or more series of the debt securities; or

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to supplement any of the provisions of the indenture to such extent as shall be necessary to permit or facilitate the defeasance and discharge of any series of debt securities pursuant to the indenture; provided that any such action shall not adversely affect the interests of the holders of debt securities of such series and any related coupons or any other series of securities in any material respect.

With certain exceptions, the indenture or the rights of the holders of the debt securities may be modified by us and the trustee with the consent of the holders of a majority in aggregate principal amount of the debt securities then outstanding affected thereby, but no such modification may be made without the consent of the holder of each outstanding note affected thereby that would:

•

change the maturity of the principal of, or any premium on, or any installment of principal of or interest on any debt securities, or reduce the principal amount or any premium or the rate or manner of calculating interest or any premium payable upon redemption or repayment of any debt securities, or change the dates or periods for any redemption or repayment or change any place of payment where, or the coin or currency in which, any principal, premium or interest is payable, or impair the right to institute suit for the enforcement of any such payment on or after the maturity thereof (or, in the case of redemption or repayment, on or after the redemption or repayment date);

•

reduce the percentage in principal amount of the outstanding debt securities, the consent whose holders is required for any such modification, or the consent of whose holders is required for any waiver of compliance with certain provisions of the indenture or certain defaults thereunder and their consequences provided for in the indenture; or

•

modify any of the provisions of certain sections of the indenture, including the provisions summarized in this paragraph, except to increase any such percentage or to provide that certain other provisions of the indenture cannot be modified or waived without the consent of the holder of each of the outstanding debt securities affected thereby.

Defeasance

The following provisions will be applicable to each series of debt securities unless we state in the applicable prospectus supplement or term sheet that the provisions of covenant defeasance and full defeasance will not be applicable to that series.

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Covenant Defeasance

Under current United States federal tax law, we can make the deposit described below and be released from some of the restrictive covenants in the indenture under which the particular series was issued. This is called “covenant defeasance.” In that event, you would lose the protection of those restrictive covenants but would gain the protection of having money and government securities set aside in trust to repay your debt securities. In order to achieve covenant defeasance, we must do the following:

•

deposit in trust for the benefit of all holders of such debt securities a combination of money and government or government agency debt securities or bonds in the relevant currency that will generate enough cash to make interest, principal and any other payments on the debt securities of such series in the relevant currency on their various due dates; and

•

deliver to the trustee a legal opinion of our counsel confirming that, under current United States federal income tax law, we may make the above deposit without causing you to be taxed on the debt securities of such series any differently than if we did not make the deposit and just repaid such debt securities ourselves at maturity.

If we accomplish covenant defeasance, you can still look to us for repayment of the debt securities if there were a shortfall in the trust deposit or the trustee is prevented from making payment. In fact, if one of the remaining Events of Default occurred (such as our bankruptcy) and the debt securities became immediately due and payable, there might be a shortfall. Depending on the event causing the default, you may not be able to obtain payment of the shortfall.

Full Defeasance

If there is a change in United States federal tax law, as described below, we can legally release ourselves from all payment and other obligations on the debt securities of a particular series (called “full defeasance”) if we put in place the following other arrangements for you to be repaid:

•

we must deposit in trust for the benefit of all holders of the debt securities of such series a combination of money and government or government agency debt securities or bonds in the relevant currency that will generate enough cash to make interest, principal and any other payments on the debt securities of such series in the relevant currency on their various due dates; and

•

we must deliver to the trustee a legal opinion confirming that there has been a change in current United States federal tax law or an Internal Revenue Service ruling that allows us to make the above deposit without causing you to be taxed on the debt securities of such series any differently than if we did not make the deposit and just repaid such debt securities ourselves at maturity. Under current United States federal tax law, the deposit and our legal release from the debt securities of such series would be treated as though we paid you your share of the cash and debt securities or bonds at the time the cash and debt securities or bonds were deposited in trust in exchange for your debt securities and you would recognize gain or loss on your debt securities at the time of the deposit.

If we ever did accomplish full defeasance, as described above, you would have to rely solely on the trust deposit for repayment of the debt securities of such series. You could not look to us for repayment in the unlikely event of any shortfall. Conversely, the trust deposit would most likely be protected from claims of our lenders and other creditors if we ever became bankrupt or insolvent.

Covenant defeasance and full defeasance are both subject to certain conditions, such as no default or event of default occurring and continuing, and no breach of any material agreement.

Discharge of the Indenture

We may satisfy and discharge our obligations under the indenture by delivering to the trustee for cancellation all outstanding debt securities or by depositing with the trustee or the paying agent after the debt securities have become due and payable, whether at stated maturity, or any redemption or repayment date, or otherwise, cash sufficient to pay all of the outstanding debt securities and paying all other sums payable under the indenture.

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No Personal Liability of Directors, Officers, Employees and Stockholders

No recourse for the payment of the principal of or premium, if any, or interest on any debt security or any coupons appertaining thereto, or for any claim based thereon or otherwise in respect thereof, and no recourse under or upon any obligation, covenant or agreement of ours in the indenture or in any supplemental indenture, or in any debt security or any coupons appertaining thereto, or because of the creation of any indebtedness represented thereby, shall be had against any director, officer, employee, or stockholder as such, past, present or future, of ours or any of our affiliates or any successor person, either directly or through us or any of our affiliates or any successor person, whether by virtue of any constitution, statute or rule of law, or by the enforcement of any assessment or penalty or otherwise; it being expressly understood that all such liability is hereby expressly waived and released as a condition of, and as a consideration for, the execution of the indenture and the issue of the debt securities.

Governing Law

New York law will govern the indenture and the debt securities.

Form, Exchange and Transfer of Certificated Debt Securities

If registered debt securities cease to be issued in book−entry form, they will be issued:

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only in fully registered certificated form,

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without interest coupons, and

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unless we indicate otherwise in the prospectus supplement or term sheet, in a minimum denomination of $2,000 and amounts above the minimum denomination that are integral multiples of $1,000.

Holders may exchange their certificated debt securities of smaller denominations or combined into fewer debt securities of larger denominations, as long as the total principal amount is not changed.

Holders may exchange or transfer their certificated debt securities at the office of the trustee. We have appointed the trustee to act as our agent for registering debt securities in the names of holders transferring debt securities. We may appoint another entity to perform these functions or perform them ourselves.

Holders will not be required to pay a service charge to transfer or exchange their certificated securities, but they may be required to pay any tax or other governmental charge associated with the transfer or exchange. The transfer or exchange will be made only if our transfer agent is satisfied with the holder’s proof of legal ownership.

If we have designated additional transfer agents for your debt security, they will be named in the applicable prospectus supplement or term sheet. We may appoint additional transfer agents or cancel the appointment of any particular transfer agent. We may also approve a change in the office through which any transfer agent acts.

If any certificated debt securities of a particular series are redeemable and we redeem less than all the debt securities of that series, we may block the transfer or exchange of those debt securities during the period beginning 15 days before the day we mail the notice of redemption and ending on the day of that mailing, in order to freeze the list of holders to prepare the mailing. We may also refuse to register transfers or exchanges of any certificated debt securities selected for redemption, except that we will continue to permit transfers and exchanges of the unredeemed portion of any debt security that will be partially redeemed.

If a registered debt security is issued in book−entry form, only the depositary will be entitled to transfer and exchange the debt security as described in this subsection, since it will be the sole holder of the debt security.

Resignation of Trustee

The trustee may resign or be removed at any time with respect to one or more series of indenture securities provided that a successor trustee is appointed to act with respect to these series. In the event that

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two or more persons are acting as trustee with respect to different series of indenture securities under the indenture, each of the trustees will be a trustee of a trust separate and apart from the trust administered by any other trustee.

The Trustee Under the Indenture

The trustee may be one of a number of banks with which we maintain ordinary banking relationships and from which we may obtain credit facilities and lines of credit in the future. The trustee may also serve as trustee under other indentures under which we are the obligor in the future.

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DESCRIPTION OF WARRANTS

We may issue warrants for the purchase of our preferred stock, common stock, debt securities or any combination thereof. Warrants may be issued independently or together with our preferred stock, common stock or debt securities and may be attached to or separate from any offered securities. Each series of warrants will be issued under a separate warrant agreement to be entered into between us and a bank or trust company, as warrant agent. The warrant agent will act solely as our agent in connection with the warrants. The warrant agent will not have any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. This summary of certain provisions of the warrants is not complete. For the terms of a particular series of warrants, you should refer to the prospectus supplement for that series of warrants and the warrant agreement for that particular series.

The prospectus supplement relating to a particular series of warrants to purchase such securities will describe the terms of the warrants, including the following:

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the title of the warrants;

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the offering price for the warrants, if any;

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the aggregate number of warrants;

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the designation and terms of the securities that may be purchased upon exercise of the warrants;

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if applicable, the designation and terms of the securities with which the warrants are issued and the number of warrants issued with each security;

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if applicable, the date from and after which the warrants and any securities issued with the warrants will be separately transferable;

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whether the warrants will be issued in registered form or bearer form;

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information with respect to book-entry procedures, if any;

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the number and basic terms of the securities that may be purchased upon exercise of a warrant and the exercise price for the warrants;

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the dates on which the right to exercise the warrants shall commence and expire;

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if applicable, the minimum or maximum amount of the warrants that may be exercised at any one time;

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the currency or currency units in which the offering price, if any, and the exercise price are payable;

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if applicable, a discussion of material U.S. federal income tax considerations;

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the antidilution provisions of the warrants, if any;

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the redemption or call provisions, if any, applicable to the warrants;

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any provisions with respect to the holder’s right to require us to repurchase the warrants upon a change in control or similar event; and

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any additional terms of the warrants, including procedures, and limitations relating to the exchange, exercise and settlement of the warrants.

Holders of equity warrants will not be entitled:

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to vote, consent or receive dividends;

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receive notice as stockholders with respect to any meeting of stockholders for the election of our directors or any other matter; or

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exercise any rights as stockholders of us.

Holders of warrants to purchase debt securities will not be entitled to payments of principal of, or any premium or interest on, the debt securities purchasable on exercise, or to exercise any of the rights of the holders of such debt securities until such warrant is exercised.

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Exercise of Warrants

Each warrant will entitle the holder to purchase the securities that we specify in the applicable prospectus supplement at the exercise price that we describe in the applicable prospectus supplement. Unless we otherwise specify in the applicable prospectus supplement, holders of the warrants may exercise the warrants at any time up to the specified time on the expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void.

Holders of the warrants may exercise the warrants by delivering the warrant certificate representing the warrants to be exercised together with specified information, and paying the required amount to the warrant agent in immediately available funds, as provided in the applicable prospectus supplement. We will set forth on the reverse side of the warrant certificate and in the applicable prospectus supplement the information that the holder of the warrant will be required to deliver to the warrant agent.

Upon receipt of the required payment and the warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will issue and deliver the securities purchasable upon such exercise. If fewer than all of the warrants represented by the warrant certificate are exercised, then we will issue a new warrant certificate for the remaining amount of warrants. If we so indicate in the applicable prospectus supplement, holders of the warrants may surrender securities as all or part of the exercise price for warrants.

Enforceability of Rights by Holders of Warrants

Each warrant agent will act solely as our agent under the applicable warrant agreement and will not assume any obligation or relationship of agency or trust with any holder of any warrant. A single bank or trust company may act as warrant agent for more than one issue of warrants. A warrant agent will have no duty or responsibility in case of any default by us under the applicable warrant agreement or warrant, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a warrant may, without the consent of the related warrant agent or the holder of any other warrant, enforce by appropriate legal action its right to exercise, and receive the securities purchasable upon exercise of, its warrants.

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DESCRIPTION OF UNITS

We may issue units consisting of any combination of the other types of securities offered under this prospectus in one or more series. We may evidence each series of units by unit certificates that we will issue under a separate agreement. We may enter into unit agreements with a unit agent. Each unit agent will be a bank or trust company that we select. We will indicate the name and address of the unit agent in the applicable prospectus supplement relating to a particular series of units.

The following description, together with the additional information included in any applicable prospectus supplement, summarizes the general features of the units that we may offer under this prospectus. You should read any prospectus supplement and any free writing prospectus that we may authorize to be provided to you related to the series of units being offered, as well as the complete unit agreements that contain the terms of the units. Specific unit agreements will contain additional important terms and provisions and we will file as an exhibit to the registration statement of which this prospectus is a part, or will incorporate by reference from another report that we file with the SEC, the form of each unit agreement relating to units offered under this prospectus.

If we offer any units, certain terms of that series of units will be described in the applicable prospectus supplement, including, without limitation, the following, as applicable:

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the title of the series of units;

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identification and description of the separate constituent securities comprising the units;

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the price or prices at which the units will be issued;

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the date, if any, on and after which the constituent securities comprising the units will be separately transferable;

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a discussion of certain United States federal income tax considerations applicable to the units; and

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any other terms of the units and their constituent securities.

Enforceability of Rights by Holders of Units

To the extent applicable, each unit agent will act solely as our agent under the applicable unit agreement and will not assume any obligation or relationship of agency or trust with any holder of any unit. A single bank or trust company may act as unit agent for more than one series of units. A unit agent will have no duty or responsibility in case of any default by us under the applicable unit agreement or unit, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a unit may, without the consent of the related unit agent or the holder of any other unit, enforce by appropriate legal action its rights as holder under any security included in the unit.

We, any unit agents and any of their agents may treat the registered holder of any unit certificate as an absolute owner of the units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the units so requested, despite any notice to the contrary. See “Legal Ownership of Securities.”

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LEGAL OWNERSHIP OF SECURITIES

We can issue securities in registered form or in the form of one or more global securities. We describe global securities in greater detail below. We refer to those persons who have securities registered in their own names on the books that we or any applicable trustee or depositary or warrant agent maintain for this purpose as the “holders” of those securities. These persons are the legal holders of the securities. We refer to those persons who, indirectly through others, own beneficial interests in securities that are not registered in their own names, as “indirect holders” of those securities. As we discuss below, indirect holders are not legal holders, and investors in securities issued in book-entry form or in street name will be indirect holders.

Book-Entry Holders

We may issue securities in book-entry form only, as we will specify in the applicable prospectus supplement. This means securities may be represented by one or more global securities registered in the name of a financial institution that holds them as depositary on behalf of other financial institutions that participate in the depositary’s book-entry system. These participating institutions, which are referred to as participants, in turn, hold beneficial interests in the securities on behalf of themselves or their customers.

Only the person in whose name a security is registered is recognized as the holder of that security. Global securities will be registered in the name of the depositary or its participants. Consequently, for global securities, we will recognize only the depositary as the holder of the securities, and we will make all payments on the securities to the depositary. The depositary passes along the payments it receives to its participants, which in turn pass the payments along to their customers who are the beneficial owners. The depositary and its participants do so under agreements they have made with one another or with their customers; they are not obligated to do so under the terms of the securities.

As a result, investors in a global security will not own securities directly. Instead, they will own beneficial interests in a global security, through a bank, broker or other financial institution that participates in the depositary’s book-entry system or holds an interest through a participant. As long as the securities are issued in global form, investors will be indirect holders, and not legal holders, of the securities.

Street Name Holders

We may terminate a global security or issue securities that are not issued in global form. In these cases, investors may choose to hold their securities in their own names or in “street name.” Securities held by an investor in street name would be registered in the name of a bank, broker or other financial institution that the investor chooses, and the investor would hold only a beneficial interest in those securities through an account he or she maintains at that institution.

For securities held in street name, we or any applicable trustee or depositary will recognize only the intermediary banks, brokers and other financial institutions in whose names the securities are registered as the holders of those securities, and we or any such trustee or depositary will make all payments on those securities to them. These institutions pass along the payments they receive to their customers who are the beneficial owners, but only because they agree to do so in their customer agreements or because they are legally required to do so. Investors who hold securities in street name will be indirect holders, not legal holders, of those securities.

Legal Holders

Our obligations, as well as the obligations of any applicable trustee or third party employed by us or a trustee, run only to the legal holders of the securities. We do not have obligations to investors who hold beneficial interests in global securities, in street name or by any other indirect means. This will be the case whether an investor chooses to be an indirect holder of a security or has no choice because we are issuing the securities only in global form.

For example, once we make a payment or give a notice to the holder, we have no further responsibility for the payment or notice even if that holder is required, under agreements with its participants or customers or by law, to pass it along to the indirect holders but does not do so.

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Special Considerations for Indirect Holders

If you hold securities through a bank, broker or other financial institution, either in book-entry form because the securities are represented by one or more global securities or in street name, you should check with your own institution to find out:

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how it handles securities payments and notices;

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whether it imposes fees or charges;

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how it would handle a request for the holders’ consent, if ever required;

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whether and how you can instruct it to send you securities registered in your own name so you can be a legal holder, if that is permitted in the future;

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how it would exercise rights under the securities if there were a default or other event triggering the need for holders to act to protect their interests; and

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if the securities are in book-entry form, how the depositary’s rules and procedures will affect these matters.

Global Securities

A global security is a security that represents one or any other number of individual securities held by a depositary. Generally, all securities represented by the same global securities will have the same terms.

Each security issued in book-entry form will be represented by a global security that we issue to, deposit with and register in the name of a financial institution or its nominee that we select. The financial institution that we select for this purpose is called the depositary. Unless we specify otherwise in the applicable prospectus supplement, The Depository Trust Company, New York, New York, known as DTC, will be the depositary for all securities issued in book-entry form.

A global security may not be transferred to or registered in the name of anyone other than the depositary, its nominee or a successor depositary, unless special termination situations arise. We describe those situations below under “—Special Situations When A Global Security Will Be Terminated.” As a result of these arrangements, the depositary, or its nominee, will be the sole registered owner and legal holder of all securities represented by a global security, and investors will be permitted to own only beneficial interests in a global security. Beneficial interests must be held by means of an account with a broker, bank or other financial institution that in turn has an account with the depositary or with another institution that does. Thus, an investor whose security is represented by a global security will not be a legal holder of the security, but only an indirect holder of a beneficial interest in the global security.

If the prospectus supplement for a particular security indicates that the security will be issued as a global security, then the security will be represented by a global security at all times unless and until the global security is terminated. If termination occurs, we may issue the securities through another book-entry clearing system or decide that the securities may no longer be held through any book-entry clearing system.

Special Considerations For Global Securities

As an indirect holder, an investor’s rights relating to a global security will be governed by the account rules of the investor’s financial institution and of the depositary, as well as general laws relating to securities transfers. We do not recognize an indirect holder as a holder of securities and instead deal only with the depositary that holds the global security.

If securities are issued only as global securities, an investor should be aware of the following:

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an investor cannot cause the securities to be registered in his or her name, and cannot obtain non-global certificates for his or her interest in the securities, except in the special situations we describe below;

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an investor will be an indirect holder and must look to his or her own bank or broker for payments on the securities and protection of his or her legal rights relating to the securities, as we describe above;

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an investor may not be able to sell interests in the securities to some insurance companies and to other institutions that are required by law to own their securities in non-book-entry form;

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an investor may not be able to pledge his or her interest in the global security in circumstances where certificates representing the securities must be delivered to the lender or other beneficiary of the pledge in order for the pledge to be effective;

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the depositary’s policies, which may change from time to time, will govern payments, transfers, exchanges and other matters relating to an investor’s interest in the global security. We and any applicable trustee have no responsibility for any aspect of the depositary’s actions or for its records of ownership interests in the global security. We and the trustee also do not supervise the depositary in any way;

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the depositary may, and we understand that DTC will, require that those who purchase and sell interests in the global security within its book-entry system use immediately available funds, and your broker or bank may require you to do so as well; and

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financial institutions that participate in the depositary’s book-entry system, and through which an investor holds its interest in the global security, may also have their own policies affecting payments, notices and other matters relating to the securities. There may be more than one financial intermediary in the chain of ownership for an investor. We do not monitor and are not responsible for the actions of any of those intermediaries.

Special Situations When A Global Security Will Be Terminated

In a few special situations described below, a global security will terminate and interests in it will be exchanged for physical certificates representing those interests. After that exchange, the choice of whether to hold securities directly or in street name will be up to the investor. Investors must consult their own banks or brokers to find out how to have their interests in securities transferred to their own names, so that they will be direct holders. We have described the rights of holders and street name investors above.

A global security will terminate when the following special situations occur:

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if the depositary notifies us that it is unwilling, unable or no longer qualified to continue as depositary for that global security and we do not appoint another institution to act as depositary within 90 days;

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if we notify any applicable trustee that we wish to terminate that global security; or

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if an event of default has occurred with regard to securities represented by that global security and has not been cured or waived.

The applicable prospectus supplement may also list additional situations for terminating a global security that would apply only to the particular series of securities covered by the prospectus supplement. When a global security terminates, the depositary, and neither we nor any applicable trustee, is responsible for deciding the names of the institutions that will be the initial direct holders.

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PLAN OF DISTRIBUTION

We may sell the securities offered through this prospectus in primary offerings (1) to or through underwriters or dealers, (2) directly to purchasers, including our affiliates, (3) in “at the market” offerings, (4) through agents, or (5) through a combination of any of the above methods of sale, any other methods described in a prospectus supplement or any other method permitted by law.

The securities may be distributed at a fixed price or prices, which may be changed, market prices prevailing at the time of sale, prices related to the prevailing market prices, or negotiated prices. The prospectus supplement will include the following information:

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the terms of the offering;

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the names of any underwriters or agents;

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the name or names of any managing underwriter or underwriters;

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the purchase price of the securities;

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the net proceeds from the sale of the securities;

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any delayed delivery arrangements;

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any underwriting discounts, commissions and other items constituting underwriters’ compensation;

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any initial public offering price;

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any discounts or concessions allowed or reallowed or paid to dealers; and

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any commissions paid to agents.

Sale through underwriters or dealers

If underwriters are used in the sale, the underwriters will acquire the securities for their own account, including through underwriting, purchase, security lending or repurchase agreements with us. The underwriters may resell the securities from time to time in one or more transactions, including negotiated transactions. Underwriters may sell the securities in order to facilitate transactions in any of our other securities (described in this prospectus or otherwise), including other public or private transactions and short sales. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Unless otherwise indicated in the prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions, and the underwriters will be obligated to purchase all the offered securities if they purchase any of them. The underwriters may change from time to time any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers. The prospectus supplement will include the names of the principal underwriters the respective amount of securities underwritten, the nature of the obligation of the underwriters to take the securities and the nature of any material relationship between an underwriter and us.

If dealers are used in the sale of securities offered through this prospectus, we will sell the securities to them as principals. They may then resell those securities to the public at varying prices determined by the dealers at the time of resale. The prospectus supplement will include the names of the dealers and the terms of the transaction.

Direct sales and sales through agents

We may sell the securities offered through this prospectus directly. In this case, no underwriters or agents would be involved. Such securities may also be sold through agents designated from time to time. The prospectus supplement will name any agent involved in the offer or sale of the offered securities and will describe any commissions payable to the agent by us. Unless otherwise indicated in the prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.

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We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of those securities. The terms of any such sales will be described in the prospectus supplement.

At-the-market offerings

We may also sell equity securities covered by this registration statement in an “at the market offering”, as defined in Rule 415 under the Securities Act, at negotiated prices, at prices prevailing at the time of sale or at prices related to such prevailing market prices, including sales made directly on a national securities exchange or sales made through a market maker other than on an exchange or other similar offerings through sales agents to or through market makers or into an existing market for the securities

Delayed delivery contracts

If the prospectus supplement indicates, we may authorize agents, underwriters or dealers to solicit offers from certain types of institutions to purchase securities at the public offering price under delayed delivery contracts. These contracts would provide for payment and delivery on a specified date in the future. The contracts would be subject only to those conditions described in the prospectus supplement. The applicable prospectus supplement will describe the commission payable for solicitation of those contracts.

Market making, stabilization and other transactions

Unless the applicable prospectus supplement states otherwise, each series of offered securities will be a new issue and will have no established trading market. We may elect to list any series of offered securities on an exchange. Any underwriters that we use in the sale of offered securities may make a market in such securities, but may discontinue such market making at any time without notice. Therefore, we cannot assure you that the securities will have a liquid trading market.

Any underwriter may also engage in stabilizing transactions, syndicate covering transactions and penalty bids in accordance with Rule 104 under the Securities Exchange Act of 1934, as amended. Stabilizing transactions involve bids to purchase the underlying security in the open market for the purpose of pegging, fixing or maintaining the price of the securities. Syndicate covering transactions involve purchases of the securities in the open market after the distribution has been completed in order to cover syndicate short positions.

Penalty bids permit the underwriters to reclaim a selling concession from a syndicate member when the securities originally sold by the syndicate member are purchased in a syndicate covering transaction to cover syndicate short positions. Stabilizing transactions, syndicate covering transactions and penalty bids may cause the price of the securities to be higher than it would be in the absence of the transactions. The underwriters may, if they commence these transactions, discontinue them at any time.

Derivative transactions and hedging

We, the underwriters or other agents may engage in derivative transactions involving the securities. These derivatives may consist of short sale transactions and other hedging activities. The underwriters or agents may acquire a long or short position in the securities, hold or resell securities acquired and purchase options or futures on the securities and other derivative instruments with returns linked to or related to changes in the price of the securities. In order to facilitate these derivative transactions, we may enter into security lending or repurchase agreements with the underwriters or agents. The underwriters or agents may effect the derivative transactions through sales of the securities to the public, including short sales, or by lending the securities in order to facilitate short sale transactions by others. The underwriters or agents may also use the securities purchased or borrowed from us or others (or, in the case of derivatives, securities received from us in settlement of those derivatives) to directly or indirectly settle sales of the securities or close out any related open borrowings of the securities.

Electronic auctions

We may also make sales through the Internet or through other electronic means. Since we may from time to time elect to offer securities directly to the public, with or without the involvement of agents,

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underwriters or dealers, utilizing the Internet or other forms of electronic bidding or ordering systems for the pricing and allocation of such securities, you should pay particular attention to the description of that system we will provide in a prospectus supplement.

Such electronic system may allow bidders to directly participate, through electronic access to an auction site, by submitting conditional offers to buy that are subject to acceptance by us, and which may directly affect the price or other terms and conditions at which such securities are sold. These bidding or ordering systems may present to each bidder, on a so-called “real-time” basis, relevant information to assist in making a bid, such as the clearing spread at which the offering would be sold, based on the bids submitted, and whether a bidder’s individual bids would be accepted, prorated or rejected.

Upon completion of such an electronic auction process, securities will be allocated based on prices bid, terms of bid or other factors. The final offering price at which securities would be sold and the allocation of securities among bidders would be based in whole or in part on the results of the Internet or other electronic bidding process or auction.

General information

Agents, underwriters, and dealers may be entitled, under agreements entered into with us, to indemnification by us against certain liabilities, including liabilities under the Securities Act.

CUSIP Number

The Committee on Uniform Securities Identification Procedures assigns a unique number, known as a CUSIP number, to a class or issue of securities in which all of the securities have similar rights. Certain shares of common stock covered by this prospectus included shares with a CUSIP number based on the shares being issued to an initial purchaser under Rule 144A.

Any sales of shares of our common stock by means of this prospectus must be settled with shares of common stock bearing our general (not necessarily restricted) common stock CUSIP number. The process of obtaining such shares might take a number of business days. SEC rules generally require trades in the secondary market to settle in two business days, unless the parties to any such trade expressly agree otherwise.

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LEGAL MATTERS

The validity of the securities offered by this prospectus will be passed upon by Gunderson Dettmer Stough Villeneuve Franklin & Hachigian, LLP, Boston, Massachusetts. Additional legal matters may be passed upon for us or any underwriters, dealers or agents, by counsel that we will name in the applicable prospectus supplement.

EXPERTS

The consolidated financial statements of Synchronoss Technologies, Inc. (the “Company”) appearing in the Company’s Annual Report (Form 10-K) for the year ended December 31, 2019, and the effectiveness of the Company’s internal control over financial reporting as of December 31, 2019, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon included therein, and incorporated herein by reference. Such financial statements are, and audited financial statements to be included in subsequently filed documents will be, incorporated herein in reliance upon the reports of Ernst & Young LLP pertaining to such financial statements and the effectiveness of our internal control over financial reporting as of the respective dates (to the extent covered by consents filed with the Securities and Exchange Commission) given on the authority of such firm as experts in accounting and auditing.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and other reports, proxy statements and other information with the SEC. Our SEC filings are available to the public over the Internet at the SEC’s website at http://www.sec.gov. Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, including any amendments to those reports, and other information that we file with or furnish to the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act can also be accessed free of charge through the Internet. These filings will be available as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC.

We have filed with the SEC a registration statement under the Securities Act relating to the offering of these securities. The registration statement, including the attached exhibits, contains additional relevant information about us and the securities. This prospectus does not contain all of the information set forth in the registration statement. You can obtain a copy of the registration statement, at prescribed rates, from the SEC at the address listed above. The registration statement and the documents referred to below under “Information Incorporated by Reference” are also available on our Internet website, www.synchronoss.com. We have not incorporated by reference into this prospectus the information on our website, and you should not consider it to be a part of this prospectus.

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INFORMATION INCORPORATED BY REFERENCE

The SEC allows us to incorporate by reference into this prospectus certain information we file with it, which means that we can disclose important information by referring you to those documents. The information incorporated by reference is considered to be a part of this prospectus, and information that we file later with the SEC will automatically update and supersede information contained in this prospectus and any accompanying prospectus supplement. We incorporate by reference the documents listed below that we have previously filed with the SEC (excluding any portions of any Form 8-K that are not deemed “filed” pursuant to the General Instructions of Form 8-K):

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our Annual Report on Form 10-K for the fiscal year ended December 31, 2019, filed on March 16, 2020;

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our Definitive Proxy Statement on Schedule 14A, filed with the SEC on April 16, 2020 (excluding those portions that are not incorporated by reference into our Annual Report on Form 10-K for the year ended December 31, 2019);

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our Quarterly Report on Form 10-Q, for the quarter ended March 31, 2020, filed with the SEC on May 21, 2020, 2020, as amended by Amendment No. 1 to our Quarterly Report on Form 10-Q/A filed with the SEC on June 1, 2020;

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our Quarterly Report on Form 10-Q, for the quarter ended June 30, 2020, filed with the SEC on August 12, 2020;

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our current reports on Form 8-K filed on January 15, 2020, April 28, 2020, May 8, 2020, May 18, 2020, June 8, 2020 and August 11, 2020; and

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the description of our common stock contained in our Registration Statement on Form 8-A as filed with the SEC on June 13, 2006 pursuant to Section 12(b) of the Exchange Act.

We also incorporate by reference into this prospectus additional documents that we may file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act prior to the completion or termination of the offering, including all such documents we may file with the SEC after the date of the initial registration statement and prior to the effectiveness of the registration statement, but excluding any information deemed furnished and not filed with the SEC. Any statements contained in a previously filed document incorporated by reference into this prospectus is deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus, or in a subsequently filed document also incorporated by reference herein, modifies or supersedes that statement.

This prospectus may contain information that updates, modifies or is contrary to information in one or more of the documents incorporated by reference in this prospectus. You should rely only on the information incorporated by reference or provided in this prospectus. We have not authorized anyone else to provide you with different information. You should not assume that the information in this prospectus is accurate as of any date other than the date of this prospectus or the date of the documents incorporated by reference in this prospectus.

We will provide to each person, including any beneficial owner, to whom this prospectus is delivered, upon written or oral request, at no cost to the requester, a copy of any and all of the information that is incorporated by reference in this prospectus.

Requests for such documents should be directed to:

Synchronoss Technologies, Inc.
Attn: Investor Relations
200 Crossing Blvd., 3rd Floor
Bridgewater, New Jersey 08807
(866) 620-3940

You may also access the documents incorporated by reference in this prospectus through our website at www.synchronoss.com. Except for the specific incorporated documents listed above, no information available on or through our website shall be deemed to be incorporated in this prospectus or the registration statement of which it forms a part.

TABLE OF CONTENTS

Up to $18,000,000

8.375% Senior Notes due 2026

PROSPECTUS SUPPLEMENT

B. Riley Securities

October 25, 2021