Statement of Changes in Beneficial Ownership (Form 4)

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

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

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1. Name and Address of Reporting Person * Winther Karsten 2. Issuer Name and Ticker or Trading Symbol Vertiv Holdings Co [VRT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President, EMEA (Last) (First) (Middle) C/O VERTIV HOLDINGS CO, 505 N. CLEVELAND AVE 3. Date of Earliest Transaction (Month/Day/Year) 08/14/2025 (Street) WESTERVILLE, OH 43082 4. If Amendment, Date Original Filed (Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 08/14/2025 M 103 A $12.05 18,951.40(1) D Class A Common Stock 08/14/2025 M 7,000 A $12.32 25,951.40(1) D Class A Common Stock 08/14/2025 M 29,756 A $15.84 55,707.40(1) D Class A Common Stock 08/14/2025 M 4,795 A $72.09 60,502.40(1) D Class A Common Stock 08/14/2025 S 41,654 D $134.21 18,848.40(1) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Stock Options

$12.05

08/14/2025

M

103

(2)

02/07/2030

Class A Common Stock

103

$ 0

0

D

Stock Options

$12.32

08/14/2025

M

7,000

(3)

03/16/2032

Class A Common Stock

7,000

$ 0

0

D

Stock Options

$15.84

08/14/2025

M

29,756

(4)

03/07/2033

Class A Common Stock

29,756

$ 0

29,757

D

Stock Options

$72.09

08/14/2025

M

4,795

(5)

03/07/2034

Class A Common Stock

4,795

$ 0

14,386

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Winther Karsten C/O VERTIV HOLDINGS CO 505 N. CLEVELAND AVE WESTERVILLE, OH 43082			President, EMEA

Signatures

/s/ Robert M. Wolfe, as attorney-in-fact		08/14/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Includes shares, RSUs and DSUs.
(2)	The option award exercised in this transaction was fully vested on the transaction date.
(3)	The stock option grant provides that the options vest and become exercisable one-fourth per year, commencing March 3, 2023.
(4)	The stock option grant provides that the options vest and become exercisable one-fourth per year, commencing March 15, 2023.
(5)	The stock option grant provides that the options vest and become exercisable one-fourth per year, commencing March 15, 2024.

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