Vertiv (VRT)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-15 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Vertiv Holdings Co (VRT) CIK: 0001674101 --- Reporting Owner --- Name: Poncheri Frank CIK: 0002035408 Role: Officer (Chief Human Resources Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-09-15 | Code: F (Payment of exercise/tax) Shares: -2,352 | Price: $234.61 Total Value: $551,802.72 Shares Owned After: 14,307.61 | Ownership: D (Direct) Footnotes: [F1] Represents the automatic withholding by the issuer to satisfy the reporting person's tax obligation upon vesting and settlement of restricted stock units ("RSUs"), including dividend-equivalent stock units ("DSUs"). Pursuant to the terms of the 2020 Stock Incentive Plan, fractional shares are mandatorily settled in cash. [F2] Includes shares, RSUs and DSUs. --- Holdings --- [Holding #1] Security: Class A Common Stock Ownership: I (Indirect) Footnotes: [F3] Reflects shares acquired under the Company's 401(k) plan in transactions exempt from reporting requirements. --- Footnotes (Complete Index) --- F1: Represents the automatic withholding by the issuer to satisfy the reporting person's tax obligation upon vesting and settlement of restricted stock units ("RSUs"), including dividend-equivalent stock units ("DSUs"). Pursuant to the terms of the 2020 Stock Incentive Plan, fractional shares are mandatorily settled in cash. F2: Includes shares, RSUs and DSUs. F3: Reflects shares acquired under the Company's 401(k) plan in transactions exempt from reporting requirements. --- Signature --- /s/ /s/ Robert M. Wolfe, as attorney-in-fact (2026-09-16)