Results of Operations and Financial Condition. On August 10, 2026, AECOM issued a press release announcing its financial results for the quarter ended June 30, 2026. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. AECOM reports…

Entry into a Material Definitive Agreement. On June 10, 2026, AECOM entered into that certain Credit Agreement (the “ Revolving Credit Agreement ”), by and among AECOM, as borrower, certain domestic subsidiaries of AECOM from time to time party thereto, as designated borrowers (together with AECOM, the “ Borrowers ”), the lenders from time to time party thereto (the “ Lenders ”) and Bank of America, N.A. (the “ Administrative Agent ”) as administrative agent and swing line lender. The Revolvi…

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

Other Events. On June 3, 2026, AECOM announced that its Board of Directors has declared a quarterly cash dividend of $0.31 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on July 17, 2026 to stockholders of record as of the close of business on July 1, 2026. The declaration and payment of future dividends are subject to the sole discretion of the Board of Directors. The press release announcing the declaration of a cash dividend is attached heret…

Results of Operations and Financial Condition. On May 11, 2026, AECOM issued a press release announcing its financial results for the quarter ended March 31, 2026. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. AECOM reports it…

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

Entry into a Material Definitive Agreement. On March 10, 2026 (the “ Amendment Effective Date ”), AECOM entered into that certain Amendment No. 16 to Syndicated Facility Agreement (the “ Amendment ”), by and among AECOM, as borrower, certain subsidiaries of AECOM, as guarantors, the lenders party thereto (the “ Lenders ”) and Bank of America, N.A. (the “ Administrative Agent ”) as administrative agent, swing line lender and an L/C issuer, amending that certain Syndicated Facility Agreement, d…

Other Events. On March 5, 2026, the Company announced that its Board of Directors has declared a quarterly cash dividend of $0.31 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on April 17, 2026 to stockholders of record as of the close of business on April 1, 2026. The declaration and payment of future dividends are subject to the sole discretion of the Board of Directors. The press release announcing the declaration of a cash dividend is attac…

Results of Operations and Financial Condition. On February 9, 2026, AECOM issued a press release announcing its financial results for the quarter ended December 31, 2025. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. AECOM rep…

Other Events. On November 18, 2025, AECOM announced that its Board of Directors (the “Board”) has declared a quarterly cash dividend of $0.31 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on January 23, 2026 to stockholders of record as of the close of business on January 7, 2026. The per share dividend of $0.31 represents a 19% increase from the previous quarterly dividend of $0.26 per share. The declaration and payment of future dividends are…

Results of Operations and Financial Condition. On November 18, 2025, AECOM (the “Company”) issued a press release announcing its financial results for the quarter and year ended September 30, 2025. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of…

Other Events. On September 10, 2025, AECOM announced that its Board of Directors has declared a quarterly cash dividend of $0.26 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on October 17, 2025 to stockholders of record as of the close of business on October 1, 2025. The declaration and payment of future dividends are subject to the sole discretion of the Board of Directors. The press release announcing the declaration of a cash dividend is at…

Results of Operations and Financial Condition. On August 4, 2025, AECOM issued a press release announcing its financial results for the quarter ended June 30, 2025. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. AECOM reports i…

Entry into a Material Definitive Agreement. Indenture On July 22, 2025, AECOM (the “ Company ”) completed an offering of $1,200,000,000 aggregate principal amount of its 6.000% Senior Notes due 2033 (the “ Notes ”). The Notes were sold in the United States to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “ Securities Act ”), and outside the United States to non-U.S. persons pursuant to Regulation S under the Securities Act. The Notes we…

Creation of a Direct Financial Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information required to be disclosed pursuant to this

Other Events. On July 15, 2025, AECOM (the “Company”) issued a press release announcing that it had launched a private offering of $1.0 billion in aggregate principal amount of senior notes due 2033. Additionally, on July 15, 2025, the Company issued a press release announcing that it had commenced a concurrent cash tender offer for any and all of its outstanding $997.3 million aggregate principal amount of 5.125% senior notes due 2027. Copies of the press releases are filed as Exhibits 99.1…

Other Events. On June 4, 2025, AECOM announced that its Board of Directors has declared a quarterly cash dividend of $0.26 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on July 18, 2025 to stockholders of record as of the close of business on July 2, 2025. The declaration and payment of future dividends are subject to the sole discretion of the Board of Directors. The press release announcing the declaration of a cash dividend is attached heret…

Results of Operations and Financial Condition. On May 5, 2025, AECOM issued a press release announcing its financial results for the quarter ended March 31, 2025. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. AECOM reports its…

Other Events. On March 6, 2025, AECOM announced that its Board of Directors has declared a quarterly cash dividend of $0.26 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on April 17, 2025 to stockholders of record as of the close of business on April 2, 2025. The declaration and payment of future dividends are subject to the sole discretion of the Board of Directors. The press release announcing the declaration of a cash dividend is attached he…

Results of Operations and Financial Condition. On February 3, 2025, AECOM issued a press release announcing its financial results for the quarter ended December 31, 2024. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. AECOM rep…

Director — Lydia H. Kennard: A director announced she will not stand for reelection for personal reasons, which is a standard board turnover event without indication of conflict or operational impact.

Results of Operations and Financial Condition. On November 18, 2024, AECOM (the “Company”) issued a press release announcing its financial results for the quarter ended September 30, 2024. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as…

Other Events On November 18, 2024, AECOM announced that its Board of Directors (the “Board”) has declared a quarterly cash dividend of $0.26 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on January 17, 2025 to stockholders of record as of the close of business on January 2, 2025. The per share dividend of $0.26 represents a 18% increase from the previous quarterly dividend of $0.22 per share. The declaration and payment of future dividends are…

Other Events. On September 12, 2024, AECOM announced that its Board of Directors has declared a quarterly cash dividend of $0.22 per share as part of the Company’s ongoing quarterly dividend program. The dividend is payable on October 18, 2024 to stockholders of record as of the close of business on October 2, 2024. The declaration and payment of future dividends are subject to the sole discretion of the Board of Directors. The press release announcing the declaration of a cash dividend is at…

Results of Operations and Financial Condition. On August 5 , 2024, AECOM issued a press release announcing its financial results for the quarter ended June 30, 2024. A copy of the press release is attached to this report as Exhibit 99.1. Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. AECOM reports…