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 * MONSER EDWARD L 2. Issuer Name and Ticker or Trading Symbol Vertiv Holdings Co [VRT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O VERTIV HOLDINGS CO, 505 N. CLEVELAND AVE 3. Date of Earliest Transaction (Month/Day/Year) 03/06/2026 (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 03/06/2026 M 38,647 A $12.05 55,147 D Class A Common Stock 03/06/2026 M 38,647 A $20.56 93,794 D Class A Common Stock 03/06/2026 S(1) 1,700 D $239.34(2) 92,094 D Class A Common Stock 03/06/2026 S(1) 3,600 D $240.47(3) 88,494 D Class A Common Stock 03/06/2026 S(1) 12,127 D $241.62(4) 76,367 D Class A Common Stock 03/06/2026 S(1) 4,714 D $242.2(5) 71,653 D Class A Common Stock 03/06/2026 S(1) 2,200 D $243.56(6) 69,453 D Class A Common Stock 03/06/2026 S(1) 2,067 D $244.56(7) 67,386 D Class A Common Stock 03/06/2026 S(1) 10,269 D $245.65(8) 57,117 D Class A Common Stock 03/06/2026 S(1) 13,306 D $246.6(9) 43,811 D Class A Common Stock 03/06/2026 S(1) 10,162 D $247.64(10) 33,649 D Class A Common Stock 03/06/2026 S(1) 12,758 D $248.56(11) 20,891 D Class A Common Stock 03/06/2026 S(1) 2,491 D $249.58(12) 18,400 D Class A Common Stock 03/06/2026 S(1) 1,900 D $250.46(13) 16,500 D Class A Common Stock 918 I See Footnote(14)

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 Option (Right to Buy)

$12.05

03/06/2026

M

38,647

(15)

02/07/2030

Class A common stock

38,647

$ 0

0

D

Stock Option (Right to Buy)

$20.56

03/06/2026

M

38,647

(15)

02/07/2031

Class A common stock

38,647

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MONSER EDWARD L C/O VERTIV HOLDINGS CO 505 N. CLEVELAND AVE WESTERVILLE, OH 43082	X

Signatures

/s/ Eric Boxterman, as attorney-in-fact		03/09/2026
**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)	These transactions were automatically effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on December 5, 2025.
(2)	These shares were sold in multiple transactions ranging from $238.92 to $239.78. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, and the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 2 through 13, inclusive.
(3)	These shares were sold in multiple transactions ranging from $239.97 to $240.94.
(4)	These shares were sold in multiple transactions ranging from $241.01 to $242.00.
(5)	These shares were sold in multiple transactions ranging from $242.01 to $242.79.
(6)	These shares were sold in multiple transactions ranging from $243.04 to $244.00.
(7)	These shares were sold in multiple transactions ranging from $244.04 to $245.01.
(8)	These shares were sold in multiple transactions ranging from $245.13 to $246.12.
(9)	These shares were sold in multiple transactions ranging from $246.13 to $247.12.
(10)	These shares were sold in multiple transactions ranging from $247.14 to $248.13.
(11)	These shares were sold in multiple transactions ranging from $248.14 to $249.13.
(12)	These shares were sold in multiple transactions ranging from $249.14 to $250.10.
(13)	These shares were sold in multiple transactions ranging from $250.18 to $251.10.
(14)	Reflects securities held directly by the Reporting Person's spouse.
(15)	The stock options were fully vested as of the date of the transactions reported herein.

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