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 OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Starboard Value LP		 2. Issuer Name and Ticker or Trading Symbol

Cyxtera Technologies, Inc. [ CYXT ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ 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/YYYY)

6/6/2023
(Street)

NEW YORK, NY 10017		 4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
 6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person
(City)        (State)        (Zip)
Rule 10b5-1(c) Transaction Indication
☐ Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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 (1)(2)6/6/2023  S  5028190 D$0.0635 10934440 (3)I By Starboard Value and Opportunity Master Fund Ltd (4)
Class A common stock (1)(2)6/6/2023  S  890350 D$0.0635 1915327 (3)I By Starboard Value and Opportunity S LLC (5)
Class A common stock (1)(2)6/6/2023  S  1429992 D$0.0635 3152059 (3)I By Managed Account of Starboard Value LP (6)
Class A common stock (1)(2)6/6/2023  S  529375 D$0.0635 1139841 (3)I By Starboard Value and Opportunity C LP (7)
Class A common stock (1)(2)6/6/2023  S  406849 D$0.0635 880996 (3)I By Starboard Value and Opportunity Master Fund L LP (8)
Class A common stock (1)(2)6/6/2023  S  715244 D$0.0635 1332674 (3)I By Starboard X Master Fund Ltd (9)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)		2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
(1) This Form 4 is filed jointly by Starboard Value and Opportunity Master Fund Ltd ("Starboard V&O Fund"), Starboard Value and Opportunity S LLC ("Starboard S LLC"), Starboard Value LP ("Starboard Value LP"), Starboard Value GP LLC ("Starboard Value GP"), Starboard Principal Co LP ("Principal Co"), Starboard Principal Co GP, LLC ("Principal GP"), Starboard Value and Opportunity C LP ("Starboard C LP"), Starboard Value R LP ("Starboard R LP"), Starboard Value R GP LLC ("Starboard R GP"), Starboard Value and Opportunity Master Fund L LP ("Starboard L Master"), Starboard Value L LP ("Starboard L LP"), Starboard X Master Fund Ltd ("Starboard X Master") and Peter A. Feld (collectively, the "Reporting Persons"). Jeffrey C. Smith reported the sale in a separate Form 4.
(2) To enable all of the Reporting Persons to gain access to the Securities and Exchange Commission's electronic filing system (which only accepts a maximum of 10 joint filers per report), this report is the first of two identical reports relating to the same transactions being filed with the Securities and Exchange Commission. Each Reporting Person may be deemed to be a member of a Section 13(d) group that owns more than 10% of the Issuer's outstanding Ordinary Shares. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
(3) The total also reflects shares received in an in-kind distribution from SVAC Sponsor LLC for no consideration.
(4) Securities beneficially owned by Starboard V&O Fund. Starboard Value LP, as the investment manager of Starboard V&O Fund, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard V&O Fund. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard V&O Fund.
(5) Securities beneficially owned by Starboard S LLC. Starboard Value LP, as the manager of Starboard S LLC, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard S LLC. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard S LLC.
(6) Securities held in a certain account managed by Starboard Value LP (the "Starboard Value LP Account"). Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard Value LP and held by the Starboard Value LP Account.
(7) Securities beneficially owned by Starboard C LP. Each of Starboard R LP, as the general partner of Starboard C LP, and Starboard R GP, as the general partner of Starboard R LP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard C LP. Starboard Value LP, as the investment manager of Starboard C LP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard C LP. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard C LP.
(8) Securities beneficially owned by Starboard L Master. Each of Starboard L LP, as the general partner of Starboard L Master, and Starboard R GP, as the general partner of Starboard L LP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard L LP. Starboard Value LP, as the investment manager of Starboard L Master, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard L Master. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard L Master.
(9) Securities beneficially owned by Starboard X Master. Starboard Value LP, as the investment manager of Starboard X Master, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard X Master. Each of Starboard Value GP, as the general partner of Starboard Value LP, Principal Co, as a member of Starboard Value GP, Principal GP, as the general partner of Principal Co, and Messrs. Smith and Feld, as members of Principal GP and as members of each of the Management Committee of Starboard Value GP and the Management Committee of Principal GP, may be deemed to be the beneficial owner of the securities beneficially owned by Starboard X Master.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Starboard Value LP
777 THIRD AVENUE
18TH FLOOR
NEW YORK, NY 10017
X

Starboard Value GP LLC
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X

Starboard Principal Co LP
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X

Starboard Principal Co GP LLC
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X

Starboard Value & Opportunity C LP
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X

Starboard Value R LP
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X

STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X

STARBOARD VALUE & OPPORTUNITY S LLC
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X

Starboard Value R GP LLC
777 THIRD AVENUE, 18TH FLOOR
NEW YORK, NY 10017
X
Signatures
Starboard Value LP, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

Starboard Value GP LLC, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

Starboard Principal Co LP, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

Starboard Principal Co GP LLC, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

Starboard Value & Opportunity C LP, By:/s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

Starboard Value R LP, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

STARBOARD VALUE & OPPORTUNITY S LLC, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate

Starboard Value R GP LLC, By: /s/ Jeffrey C. Smith, Authorized Signatory6/8/2023
**Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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