WASTE MANAGEMENT INC 10-Q

Item 5. Other Information . ​ Securities Trading Plans of Directors and Executive Officers On August 11, 2025 , James C. Fish, Jr. , Chief Executive Officer and member of our Board of Directors , adopted a stock trading plan (the “Fish Plan”) intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. The Fish Plan will commence on February 2, 2026, and will automatically terminate on the earlier of June 30, 2026 , and the completion of all the contemplated transactions set forth therein. The Fish plan provides for the potential sale of all net after-tax shares of our common stock received from the payout of performance share unit (“PSU”) equity compensation awards for the performance period ended December 31, 2025, upon our common stock reaching specified market prices. Mr. Fish received a target grant of 51,316 PSU awards with a performance period ended December 31, 2025; the number of shares to be paid out to Mr. Fish on account of these PSU awards can range from zero to 200% of the initial target grant. As a result, the number of shares of common stock to potentially be sold pursuant to the Fish Plan will be determined in the first quarter of 2026 based on certification by the Management Development and Compensation Committee of the Board of Directors of the Company’s achievement relative to applicable performance measures for the underlying PSU awards. ​ ​ ​ ​ 46 ​ ​ Item 6. Exhibits. ​ ​ ​ Exhibit No. Description 10.1 ​ Form of 2025 Long Term Incentive Compensation RSU Award Agreement for Tara Hemmer Retention Award [incorporated by reference to Exhibit 10.1 to Form 8-K dated August 27, 2025]. ​ ​ ​ 22.1* ​ Guarantor Subsidiary. ​ ​ ​ 31.1* ​ Certification Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934 James C. Fish, Jr., Chief Executive Officer. ​ ​ ​ 31.2* ​ Certification Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934 Devina A. Rankin, Executive Vice President and Chief Financial Officer. ​ ​ ​ 32.1** ​ Certification Pursuant to 18 U.S.C. §1350 of James C. Fish, Jr., Chief Executive Officer. ​ ​ ​ 32.2** ​ Certification Pursuant to 18 U.S.C. §1350 of Devina A. Rankin, Executive Vice President and Chief Financial Officer. ​ ​ ​ 95* ​ Mine Safety Disclosures. ​ ​ ​ 101.INS* ​ Inline XBRL Instance. ​ ​ ​ 101.SCH* ​ Inline XBRL Taxonomy Extension Schema. ​ ​ ​ 101.CAL* ​ Inline XBRL Taxonomy Extension Calculation. ​ ​ ​ 101.LAB* ​ Inline XBRL Taxonomy Extension Labels. ​ ​ ​ 101.PRE* ​ Inline XBRL Taxonomy Extension Presentation. ​ ​ ​ 101.DEF* ​ Inline XBRL Taxonomy Extension Definition. ​ ​ ​ 104* ​ Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101). ​ * Filed herewith. ** Furnished herewith. ​ 47 ​ SIGNATURES 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, thereunto duly authorized. ​ ​ ​ ​ WASTE MANAGEMENT, INC. ​ ​ ​ ​ By: /s/ DEVINA A. RANKIN ​ ​ Devina A. Rankin ​ ​ Executive Vice President and ​ ​ Chief Financial Officer ​ ​ (Principal Financial Officer) ​ ​ ​ ​ WASTE MANAGEMENT, INC. ​ ​ ​ ​ By: /s/ JOHN CARROLL ​ ​ John Carroll ​ ​ Vice President and ​ ​ Chief Accounting Officer ​ ​ (Principal Accounting Officer) ​ ​ ​ ​ ​ ​ ​ ​ ​ Date: October 28, 2025 ​ ​ ​ ​ ​ ​ ​ ​ ​ 48