Item 7.01 Regulation FD Disclosure

As previously reported, on August 16, 2021, M3-Brigade Acquisition II Corp., a Delaware corporation ("MBAC"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with Blue Steel Merger Sub Inc., a Delaware corporation and wholly owned subsidiary of MBAC ("Merger Sub"), and Syniverse Corporation, a Delaware corporation ("Syniverse"), pursuant to which Merger Sub will merge with and into Syniverse, with Syniverse surviving the merger as a wholly owned subsidiary of MBAC. The transaction is expected to close in the fourth quarter of 2021, subject to receipt of the requisite MBAC stockholder approvals and certain other customary closing conditions. Upon closing of the transaction, the combined company intends to change its name to Syniverse Technologies Corporation and trade on the New York Stock Exchange (the "NYSE") under the ticker symbol "SYNV."

On October 8, 2021, Syniverse issued a press release announcing financial results of Syniverse Holdings, Inc., a wholly owned subsidiary of Syniverse ("Syniverse Holdings"), for its third fiscal quarter ended August 31, 2021 and the nine months ended August 31, 2021. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Attached hereto as Exhibit 99.2 and incorporated herein by reference is an investor presentation dated October 8, 2021, which was prepared by Syniverse in connection with its earnings release.

Attached hereto as Exhibit 99.3 and incorporated herein by reference is the script used by Syniverse management in connection with an investor conference call held on October 8, 2021.

Attached hereto as Exhibit 99.4 and incorporated herein by reference are the unaudited financial statements of Syniverse Holdings for the three and nine months ended August 31, 2021 and 2020.

The foregoing (including Exhibits 99.1, 99.2, 99.3 and 99.4) is being furnished pursuant to Item 7.01 and will not be deemed to be filed for purposes of Section 18 of the Exchange Act, or otherwise be subject to the liabilities of that section, nor will it be deemed to be incorporated by reference in any filing under the Securities Act or the Exchange Act.

Important Information about the Transaction and Where to Find It

In connection with the proposed transaction, MBAC has filed a preliminary proxy statement and plans to file a definitive proxy statement with the SEC. MBAC'S STOCKHOLDERS AND OTHER INTERESTED PERSONS ARE ADVISED TO READ, WHEN AVAILABLE, THE PRELIMINARY PROXY STATEMENT, THE AMENDMENTS THERETO, AND THE DEFINITIVE PROXY STATEMENT AND DOCUMENTS INCORPORATED BY REFERENCE THEREIN FILED IN CONNECTION WITH THE PROPOSED TRANSACTION, AS THESE MATERIALS WILL CONTAIN IMPORTANT INFORMATION ABOUT MBAC, SYNIVERSE AND THE PROPOSED TRANSACTION. When available, the definitive proxy statement will be mailed to the stockholders of MBAC as of a record date to be established for voting on the proposed transaction. Stockholders will also be able to obtain copies of the preliminary proxy statement, the definitive proxy statement and other documents filed with the SEC that will be incorporated by reference therein, without charge, once available, at the SEC's website at http://www.sec.gov, or by directing a request to: M3-Brigade Acquisition II Corp., 1700 Broadway - 19th Floor, New York, New York 10019.

Participants in the Solicitation

MBAC and its directors and executive officers may be deemed participants in the solicitation of proxies of MBAC's stockholders with respect to the proposed transaction. A list of those directors and executive officers and a description of their interests in MBAC will be filed in the proxy statement for the proposed transaction and available at www.sec.gov. Additional information regarding the interests of such participants will be contained in the proxy statement for the proposed transaction when available.

Syniverse and its directors and executive officers may also be deemed to be participants in the solicitation of proxies from the stockholders of MBAC in connection with the proposed transaction. A list of the names of such directors and executive officers and information regarding their interests in the proposed transaction will be included in the proxy statement for the proposed business combination.

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No Offer or Solicitation

This Current Report shall not constitute a solicitation of a proxy, consent or authorization with respect to any securities or in respect of the proposed transaction. This Current Report shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any states or jurisdictions in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of section 10 of the Securities Act.

Forward Looking Statements

This Current Report may contain "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. The expectations, estimates and projections of the businesses of MBAC or Syniverse may differ from their actual results and consequently, you should not rely on these forward-looking statements as predictions of future events. Words such as "expect," "estimate," "project," "budget," "forecast," "anticipate," "intend," "plan," "may," "will," "would," "could," "should," "believes," "predicts," "potential," "continue," "target," "goal" and similar expressions are intended to identify such forward-looking statements. These forward-looking statements include, without limitation, expectations with respect to future performance of MBAC and Syniverse and anticipated financial impacts of the proposed transaction, the satisfaction of the closing conditions to the proposed transaction and the timing of the completion of the proposed transaction.

These forward-looking statements are not guarantees of future performance, conditions or results, and involve significant risks and uncertainties, that could cause the actual results to differ materially from the expected results. Most of these factors are outside of the control of MBAC and Syniverse and are difficult to predict. Factors that may cause such differences include, but are not limited to: (1) the inability to complete the transactions contemplated by the Merger Agreement, including due to failure to obtain approval of the stockholders of MBAC or other conditions to closing in the Merger Agreement; (2) the outcome of any legal proceedings that may be instituted against the parties following announcement of the Merger Agreement and the proposed transactions contemplated thereby; (3) the ability to recognize the anticipated benefits of the proposed business combination, which may be affected by, among other things, competition, the ability of the post-combination company to grow and manage growth profitably, maintain relationships with customers and suppliers and retain its management and key employees; (4) the occurrence of any event, change or other circumstances that could give rise to the termination of the Merger Agreement and the proposed transactions contemplated thereby; (5) risks related to the uncertainty of the projected financial information with respect to Syniverse; (6) the inability to obtain or maintain the listing of the post-acquisition company's Class A Stock and public warrants on the NYSE following the proposed business combination; (7) risks related to the post-combination company's ability to raise financing in the future; (8) the post-combination company's success in retaining or recruiting, or changes required in, our officers, key employees or directors following the proposed business combination; (9) our directors and officers potentially having conflicts of interest with our business or in approving the proposed business combination; (10) intense competition and competitive pressures from other companies in the industry in which the post-combination company will operate; (11) the business, operations and financial performance of Syniverse, including market conditions and global and economic factors beyond Syniverse's control; (12) the effect of legal, tax and regulatory changes; (13) the receipt by MBAC or Syniverse of an unsolicited offer from another party for an alternative business transaction that could interfere with the proposed business combination; (14) the risk that the proposed business combination disrupts current plans and operations of MBAC or Syniverse as a result of the announcement and consummation of the transactions described herein; (15) costs related to the proposed business combination; (16) changes in applicable laws or regulations; (17) the possibility that MBAC or Syniverse may be adversely affected by other economic, business, and/or competitive factors; (18) the amount of redemption requests made by MBAC's public stockholders; (19) the impact of the continuing COVID-19 pandemic on MBAC, Syniverse and Syniverse's projected results of operations, financial performance or other financial metrics or on any of the foregoing risks; and (20) other risks and uncertainties disclosed in MBAC's preliminary proxy statement, including those under "Risk Factors," and other documents filed or to be filed with the SEC by MBAC.





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MBAC and Syniverse caution that the foregoing list of factors is not exclusive. You should not place undue reliance upon any forward-looking statements, which speak only as of the date made. MBAC and Syniverse do not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in their expectations or any change in events, conditions or circumstances on which any such statement is based.





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Item 9.01 Financial Statements and Exhibits.




(d) Exhibits:



Exhibits      Description

99.1            Syniverse Press Release, dated October 8, 2021.

99.2            Syniverse Investor Presentation, dated October 8, 2021.

99.3            Script for Syniverse Investor Call, held on October 8, 2021.

99.4            Unaudited Financial Statements of Syniverse Holdings for Three and
              Nine Months Ended August 31, 2021 and 2020.

104           Cover Page Interactive Data File (cover page XBRL tags are embedded
              within the Inline XBRL document).




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