UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 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): August 7, 2025

CLEAN ENERGY FUELS CORP.

(Exact Name of Registrant as Specified in Charter)


Delaware	001-33480	33-0968580
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)


4675 MacArthur Court, Suite 800
Newport Beach, CA		92660
(Address of Principal Executive Offices)		Zip Code

(949) 437-1000

(Registrant’s telephone number, including area code)

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 (see General Instruction A.2. below):

☐ 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:

Title of each class

Trading symbol(s)

Name of each exchange on which registered

Common stock, $0.0001 par value per share

CLNE

The Nasdaq Stock Market LLC

(Nasdaq Global Select Market)

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. ☐

Item 2.02.Results of Operations and Financial Condition.

On August 7, 2025, Clean Energy Fuels Corp. (the “Company”) issued a press release announcing financial results for the second quarter ended June 30, 2025. A copy of the Company’s press release containing this information is being furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information furnished pursuant to Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) and will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, or the Exchange Act, except to the extent that the Company specifically incorporates it by reference.

The information furnished in this report, including Exhibit 99.1, shall not be deemed to constitute an admission that such information or exhibit is required to be furnished pursuant to Regulation FD or that such information or exhibit contains material information that is not otherwise publicly available. In addition, the Company does not assume any obligation to update such information or exhibit in the future.

Item 9.01.Financial Statements and Exhibits.


(d)	Exhibits.

	99.1	Press release dated August 7, 2025
	104	Cover Page Interactive Data File (embedded with the Inline XBRL document)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


Date: August 7, 2025	Clean Energy Fuels Corp.


	By:	/s/ Robert M. Vreeland
		Name: Robert M. Vreeland
		Title: Chief Financial Officer

Clean Energy Fuels Corp. 8-K