6-K - GFL - Equibles

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2025

Commission File Number: 001-39240

GFL Environmental Inc.

(Translation of registrant’s name intoEnglish)

100 New Park Place, Suite 500

Vaughan, Ontario, Canada L4K 0H9

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

¨ Form<br> 20-F	x Form<br> 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

EXHIBIT INDEX

The following Exhibit 99.1 is furnished as part of this Current Report on Form 6-K.

Exhibit Number	Description
99.1	Press Release, dated March 31, 2025.

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.

	GFL Environmental Inc.
Date: March 31, 2025	By:	/s/<br> Mindy Gilbert
		Name:	Mindy Gilbert
		Title:	Executive Vice President and Chief Legal Officer

Exhibit 99.1

GFL Environmental Inc. Announces Closing of Secondary Offering bySelling Shareholders

VAUGHAN, ON, March 31, 2025 – GFL Environmental Inc. (NYSE: GFL) (TSX: GFL) (“GFL” or the “Company”) today announced the closing of the previously announced secondary offering (the “Offering”) by Ontario Teachers' Pension Plan Board, GFL Borrower II (Cayman) LP, Poole Private Capital, LLC and entities affiliated with HPS Investment Partners, LLC of an aggregate of 18,887,723 subordinate voting shares. GFL acquired 7,056,027 subordinate voting shares under the Offering (the “Secondary Offering Transaction”) pursuant to exemptive relief received by the Company from the Ontario Securities Commission on March 13, 2025, entitling it to purchase up to 38,157,045 subordinate voting shares in certain secondary offerings until March 13, 2026 (the “Order”).

On March 25, 2025, GFL also purchased 17,050,298 subordinate voting shares from funds managed by BC Partners (the “Share Repurchase Transaction”). In addition, GFL has purchased 7,618,758 subordinate voting shares under its normal course issuer bid announced on February 27, 2025 (the “NCIB”). Across the Secondary Offering Transaction, the Share Repurchase Transaction and its NCIB, GFL has purchased for cancellation a total of 31,725,083 subordinate voting shares. As a result, GFL has used all available capacity under its NCIB but still retains the ability to purchase up to 14,050,720 subordinate voting shares pursuant to the Order.

About GFL

GFL, headquartered in Vaughan, Ontario, is the fourth largest diversified environmental services company in North America, providing a comprehensive line of solid waste management services through its platform of facilities throughout Canada and in 18 U.S. states. Across its organization, GFL has a workforce of more than 15,000 employees.

For more information:

Patrick Dovigi

+1 905-326-0101

pdovigi@gflenv.com