Other Events. On June 5, 2026, the Company announced that the Board of Directors of the Company declared a quarterly dividend of $0.29 per share, payable August 3, 2026 to stockholders of record on July 2, 2026.

Results of Operations and Financial Condition. On June 5, 2026, ABM Industries Incorporated (the "Company") issued a press release announcing financial results related to the quarter ended April 30, 2026. A copy of the press release is being furnished as Exhibit 99.1 to this Form 8-K, which is incorporated into this item by reference.

Results of Operations and Financial Condition. On March 10, 2026, ABM Industries Incorporated (the "Company") issued a press release announcing financial results related to the quarter ended January 31, 2026. A copy of the press release is being furnished as Exhibit 99.1 to this Form 8-K, which is incorporated into this item by reference.

Other Events. On March 10, 2026, the Company announced that the Board of Directors of the Company declared a quarterly dividend of $0.29 per share, payable May 4, 2026 to stockholders of record on April 2, 2026.

Entry into a Material Definitive Agreement. On February 3, 2026, ABM Industries Incorporated (the “Company”) entered into the First Amendment (the “Amendment”), by and among the Company, ABM Aviation UK Limited, a company incorporated and registered in England and Wales as a private company limited by shares and a subsidiary of the Company (“ABM UK”), each of the other subsidiaries of the Company from time to time party thereto (collectively, the “Subsidiary Guarantors”), the Lenders (as defi…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth in

Results of Operations and Financial Condition. On December 17, 2025, ABM issued a press release announcing financial results related to the fourth quarter and fiscal year ended October 31, 2025. A copy of the press release is being furnished as Exhibit 99.1 to this Form 8-K, which is incorporated into this item by reference.

Entry into a Material Definitive Agreement. On December 15, 2025, ABM Industries Incorporated, a Delaware corporation (“ABM”), entered into a Share Purchase Agreement (the “Purchase Agreement”) with PW Red October S.À R.L, Watchman Investment Holdings Unlimited Company, and certain Management Sellers, as defined in the Purchase Agreement (the “Sellers”), pursuant to which ABM will acquire all of the issued and outstanding share capital of Iveagh New Opportunities Limited, a company incorporat…

Other Events. On December 17, 2025, the Company announced that the Board of Directors of the Company declared a quarterly dividend of $0.29 per share, payable on February 2, 2026, to stockholders of record on January 14, 2026.

Director — Barry A. Hytinen: The filing reports the appointment of a newly elected director to the Audit Committee, which is a routine administrative update to a board election.

Director — Barry A. Hytinen: Barry A. Hytinen was elected as a new director.

Results of Operations and Financial Condition. On September 5, 2025, ABM Industries Incorporated (the "Company") issued a press release announcing financial results related to the quarter ended July 31, 2025. A copy of the press release is being furnished as Exhibit 99.1 to this Form 8-K, which is incorporated into this item by reference.

Director — Carol A. Clements: The filing reports the appointment of a newly elected director to a specific board committee, which is a routine administrative update to a prior board election disclosure.

Other Events. On September 5, 2025, the Company announced that the Board of Directors of the Company declared a quarterly dividend of $0.265 per share, payable November 3, 2025 to stockholders of record on October 2, 2025.

Director — Carol A. Clements: Ms. Carol A. Clements was elected as a new director.

Chief Financial Officer — David Orr: David Orr was promoted to CFO, succeeding Earl Ellis.

Results of Operations and Financial Condition. On June 6, 2025, ABM Industries Incorporated (the "Company") issued a press release announcing financial results related to the quarter ended April 30, 2025. A copy of the press release is being furnished as Exhibit 99.1 to this Form 8-K, which is incorporated into this item by reference.

Other Events. On June 6, 2025. the Company announced that the Board of Directors of the Company declared a quarterly dividend of $0.265 per share, payable August 4, 2025 to stockholders of record on July 3, 2025.

The filing is about the approval of equity and incentive compensation plans, not a management change.

Results of Operations and Financial Condition. On March 12, 2025, ABM Industries Incorporated (the “Company”) issued a press release announcing financial results related to the quarter ended January 31, 2025. A copy of the press release is being furnished as Exhibit 99.1 to this Form 8-K, which is incorporated into this item by reference.

Other Events. On March 12, 2025, the Company announced that the Board of Directors of the Company declared a quarterly dividend of $0.265 per share, payable May 5, 2025 to stockholders of record on April 3, 2025.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information regarding the Credit Agreement set forth in

Entry into a Material Definitive Agreement. On February 26, 2025 (the “Closing Date”), ABM Industries Incorporated (“ABM” or the “Company”) entered into the Amended and Restated Credit Agreement (the “Credit Agreement”) among ABM, ABM Aviation UK Limited, a company incorporated and registered in England and Wales as a private company limited by shares and a subsidiary of ABM (“ABM UK”), each of the other subsidiaries of ABM from time to time party thereto (collectively, the “Subsidiary Guaran…

Results of Operations and Financial Condition. On December 18, 2024, ABM Industries Incorporated (the “Company”) issued a press release announcing financial results related to the fourth quarter and fiscal year ended October 31, 2024. A copy of the press release is being furnished as Exhibit 99.1 to this Form 8-K, which is incorporated into this item by reference.

Executive Vice President, General Counsel and Secretary — Andrea Newborn: Andrea Newborn is retiring and will be succeeded by Miranda Tolar.