Sec Form 4 Filing - SVAC Sponsor LLC @ Cyxtera Technologies, Inc. - 2021-07-29

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person SVAC Sponsor LLC 2. Issuer Name and Ticker or Trading Symbol Cyxtera Technologies, Inc. [ CYXT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 777 THIRD AVENUE, 18TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 07/29/2021 (Street) NEW YORK, NY10017 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 07/29/2021 M 9,480,713 ( 1 ) A 9,480,713 D ( 2 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 1 ) 07/29/2021 M 9,480,713 ( 2 ) ( 1 ) ( 1 ) Class A Common Stock 9,480,7 13 $ 0 0 D ( 2 ) Warrants ( 3 ) 07/29/2021 A( 3 ) 6,723,127 ( 3 ) ( 3 ) Class A Common Stock 6,723,127 $ 1.5 6,723,127 D ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SVAC Sponsor LLC 777 THIRD AVENUE 18TH FLOOR NEW YORK, NY10017 X X Signatures /s/ Kenneth R. Marlin, as authorized signatory 08/02/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents shares of Class B common stock that converted into shares of Class A common stock of Cyxtera Technologies, Inc. (f/k/a Starboard Value Acquisition Corp.) (the "Issuer") in connection with the business combination between the Issuer, Mundo Merger Sub 1, Inc., Mundo Merger Sub 2, LLC, Cyxtera Technologies, Inc., and Mundo Holdings, Inc. (the "Business Combination"). ( 2 )SVAC Sponsor LLC is the direct owner of the securities on this Form 4. SVAC Manager LLC, a Delaware limited liability company, is the Manager of SVAC Sponsor LLC. ( 3 )The warrants will become exercisable 12 months from the closing of Starboard Value Acquisition Corp.'s initial public offering, which closed on September 14, 2020. The warrants will expire five years after the completion of the Business Combination or earlier upon redemption or liquidation. Each whole warrant will entitle the holder thereof to purchase one share of Class A common stock at a price of $11.50 per share (subject to adjustment). These warrants are being reported as acquired on July 29, 2021 due to the satisfaction of a condition precedent through the closing of the initial business combination.

Remarks: Starboard Value and Opportunity Master Fund Ltd, Starboard Value and Opportunity S LLC, a managed account of Starboard Value LP, Starboard Value and Opportunity C LP, Starboard Value and Opportunity Master Fund L LP and Starboard X Master Fund Ltd also own a partial pecuniary interest in SVAC Sponsor LLC. Jeffrey C. Smith is a Managing Member, Chief Executive Officer and Chief Investment Officer of Starboard Value LP and is a director of the Issuer. By virtue of his service on the Board of Directors of the Issuer as a representative of Starboard Value LP, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the reporting person may be deemed to be a director by deputization of the Issuer.

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