Results of Operations and Financial Condition. On July 29, 2026, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its second quarter ended June 30, 2026. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Entry into a Material Definitive Agreement. On May 8, 2026, McGrath RentCorp, a California corporation (the “Company”), entered into a Third Amended and Restated Credit Agreement with (i) Bank of America, N.A., serving as Administrative Agent, Swingline Lender and L/C Issuer, (ii) BofA Securities, Inc., serving as Joint Lead Arranger and Sole Bookrunner, (iii) U.S. Bank N.A. and Wells Fargo Bank, N.A. both serving as Joint Lead Arrangers and Co-Syndication Agents, and (iv) a syndicate of othe…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant To the extent required by

Results of Operations and Financial Condition. On April 29, 2026, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its first quarter ended March 31, 2026. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Results of Operations and Financial Condition. On February 25, 2026, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its fourth quarter ended December 31, 2025. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

President and CEO — Joseph F. Hanna: Joseph F. Hanna is retiring as President and CEO, with Philip B. Hawkins appointed to succeed him.

Results of Operations and Financial Condition. On October 23, 2025, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its third quarter ended September 30, 2025. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. On September 8, 2025, McGrath RentCorp (the “ Company ”) issued and sold to The Prudential Insurance Company of America and PruCo Life Insurance Company of New Jersey (collectively, the “ Purchaser ”) $75 million aggregate principal amount of its 5.30% Series G Senior Notes pursuant to the terms of the Second Amended and Restated Note Purchase and Private Shelf Agreement, dated J…

Results of Operations and Financial Condition. On July 24, 2025, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its second quarter ended June 30, 2025. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Results of Operations and Financial Condition. On April 24, 2025, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its first quarter ended March 31, 2025. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Results of Operations and Financial Condition. On February 19, 2025, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its fourth quarter ended December 31, 2024. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Senior Vice President, Chief Accounting Officer — David M. Whitney: David M. Whitney was internally promoted to Senior Vice President, Chief Accounting Officer.

Chief Operating Officer — Philip B. Hawkins: Philip B. Hawkins was promoted to Chief Operating Officer with increased compensation and responsibilities.

Results of Operations and Financial Condition. On October 24, 2024, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its third quarter ended September 30, 2024. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Entry Into a Material Definitive Agreement. The disclosure set forth below under

Termination of a Material Definitive Agreement. As previously disclosed, on January 28, 2024, McGrath RentCorp., a California corporation (the “Company”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) by and among the Company, WillScot Holdings Corporation (“WillScot”), Brunello Merger Sub I, Inc., a California corporation and wholly owned subsidiary of WillScot and Brunello Merger Sub II, LLC, a Delaware limited liability company and wholly owned subsidiary of WillScot…

Director — Elizabeth A. Fetter: Elizabeth A. Fetter resigned from the Board and all other positions she held as a member of any committee of the Board.

Results of Operations and Financial Condition. On July 25, 2024, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its second quarter ended June 30, 2024. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Other Events. As previously announced, on January 29, 2024, McGrath RentCorp, a California corporation (the “Company”), entered into an Agreement and Plan of Merger (the “Merger Agreement”), with WillScot Mobile Mini Holdings Corp., a Delaware corporation (“Parent”), Brunello Merger Sub I, Inc., a California corporation and a direct wholly owned subsidiary of Parent (“Merger Sub I”), and Brunello Merger Sub II, LLC, a Delaware limited liability company and direct wholly owned subsidiary of Pa…

Results of Operations and Financial Condition. On April 25, 2024, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its first quarter ended March 31, 2024. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Regulation FD Disclosure As previously disclosed, on January 28, 2024, McGrath RentCorp, a California corporation (the “Company or “McGrath”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) by and among the Company, WillScot Mobile Mini Holdings Corp., a Delaware corporation (“WillScot Mobile Mini”), Brunello Merger Sub I, Inc., a California corporation and a direct wholly owned subsidiary of WillScot Mobile Mini (“Merger Sub I”), and Brunello Merger Sub II, LLC, a Delaw…

Results of Operations and Financial Condition. On February 21, 2024, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its fourth quarter ended December 31, 2023. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under

Entry into a Material Definitive Agreement. Merger Agreement On January 28, 2024, McGrath RentCorp, a California corporation (the “Company”), entered into an Agreement and Plan of Merger (the “Merger Agreement”), with WillScot Mobile Mini Holdings Corp., a Delaware corporation (“Parent”), Brunello Merger Sub I, Inc., a California corporation and a direct wholly owned subsidiary of Parent (“Merger Sub I”), and Brunello Merger Sub II, LLC, a Delaware limited liability company and direct wholly…

of this Current Report on Form 8-K, including Exhibit 99.1 shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”), as amended, or incorporated by reference in 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. Forward-Looking Statements This Current Report on Form 8-K contains forward-looking statements (including the guidanc…

Results of Operations and Financial Condition. On October 26, 2023, McGrath RentCorp (the “Company”) announced via press release the Company’s results for its third quarter ended September 30, 2023. A copy of the Company’s press release is attached hereto as Exhibit 99.1. This Form 8-K and the attached exhibit are provided under