Vertiv Holdings Co (VRT) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-04 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Vertiv Holdings Co (VRT) CIK: 0001674101 --- Reporting Owner --- Name: Karlborg Anders CIK: 0001984161 Role: Officer (EVP, Man., Logistics and Op Ex) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-05-04 | Code: F (Payment of exercise/tax) Shares: -144 | Price: $330.97 Total Value: $47,659.68 Shares Owned After: 34,606.61 | 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 (2026-05-06)