8-K

SECURITIES AND

EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13

or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):April 5, 2023

Waste

Management, Inc.

(Exact Name of Registrant as Specified in Charter)

Registrant’s Telephone number, including area code:

(713

) 512-6200

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨           Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨           Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨           Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨           Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

On April 5, 2023, Waste Management, Inc. (the “Company”) issued a press release providing additional information in connection with the previously announced virtual Sustainability Investor Day, with presentations to be focused on the Company’s investments and growth opportunities in its renewable energy and recycling businesses. The press release and the Sustainability Investor Day webcast may contain material information that has not been publicly disseminated before today. The Sustainability Investor Day webcast begins this morning at 9:00 am Central Time and will include a question-and-answer session. Participants can register and join the event by visiting investors.wm.com and selecting “Events & Presentations” from the website menu. A replay of the webcast will be available at the same location.

A copy of the press release and the Sustainability Investor Day presentation materials are furnished with this Form 8-K as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference.

(d) Exhibits

Exhibit Index

2

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, hereunto duly authorized.

EXHIBIT 99.1

Exhibit 99.2