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: 2026-06-25 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: 2026-06-25 | Code: A (Grant or award) Shares: +3.55 | Price: $0.00 Shares Owned After: 34,610.16 | Ownership: D (Direct) Footnotes: [F1] Represents the automatic accrual of dividend-equivalent stock units ("DSUs") on the reporting person's restricted stock units ("RSUs"). The DSUs will become vested on the same schedule as the underlying RSUs. Pursuant to the terms of the 2020 Stock Incentive Plan, fractional shares will be 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 accrual of dividend-equivalent stock units ("DSUs") on the reporting person's restricted stock units ("RSUs"). The DSUs will become vested on the same schedule as the underlying RSUs. Pursuant to the terms of the 2020 Stock Incentive Plan, fractional shares will be 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 (2026-06-26)