VRT: Company disclosure

Item 7.01 Regulation FD On June 12, 2026, Vertiv Holdings Co., a Delaware corporation (the “Company”), issued a press release announcing the closing, by one of its wholly-owned subsidiaries, of the acquisition of ThermoKey S.p.A. (the “Acquisition”). The press release announcing the closing of the Acquisition is furnished as Exhibit 99.1 to this Form 8-K. The information set forth in Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. The information in this Item 7.01, including Exhibit 99.1, shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 (d) Financial Statements and Exhibits Exhibit No. Exhibit Description 99.1 Press release of Vertiv Holdings Co, dated June 1 2 , 2026 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: June 12, 2026 Vertiv Holdings Co /s/ Craig Chamberlin Name: Craig Chamberlin Title: Chief Financial Officer