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): February 1326, 2026

EOS ENERGY ENTERPRISES, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-39291

84-4290188

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

3920 Park Avenue

Edison, New Jersey 08820

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (732) 225-8400

N/A

(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:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common stock, par value $0.0001 per share

EOSE

The Nasdaq Stock Market LLC

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 12.0102 ~~Entry~~Results ~~into~~of aOperations ~~Material~~and ~~Definitive~~Financial ~~Agreement.~~Condition

AsOn ~~previously~~February ~~disclosed, on November~~ 26, ~~2024~~2026, Eos Energy Enterprises, Inc., ~~a Delaware corporation~~ (the “Company”), ~~entered~~issued ~~into~~ a ~~loan~~press ~~guarantee~~release ~~agreement,~~announcing ~~which~~its ~~was~~financial ~~subsequently~~results ~~amended~~for ~~by that certain Amendment to Loan Guarantee Agreement entered into on March 25, 2025, by and between~~ the ~~Company~~year ~~and~~ended ~~the~~December ~~United States Department of Energy~~31, ~~an agency of the United States of America (the “DOE” and, such agreements collectively, the “Loan Agreement”)~~2025. OnA ~~February~~copy 13, 2026, the Company entered into that certain Second Amendment to Loan Guarantee Agreement (the “Second Amendment”), by and between the DOE and the Company, pursuant to which, among other things, the Loan Agreement was amended to defer the applicability of the ~~Consolidated~~press ~~Revenue~~release ~~and~~is ~~EBITDA~~furnished ~~financial~~herewith ~~covenants~~as inExhibit ~~the Loan Agreement until the fiscal quarter ended March 31, 2027~~99.1.

~~This~~The ~~description~~information offurnished under this Item 2.02 and in the ~~Second~~accompanying ~~Amendment~~Exhibit ~~does~~99.1 shall not ~~purport~~be todeemed be“filed” ~~complete~~for ~~and~~purposes isof ~~subject~~Section to18 ~~and~~of ~~qualified~~the inSecurities ~~its~~Exchange ~~entirety~~Act of 1934, as amended (the “Exchange Act”), or incorporated by reference toin any filing under the ~~full~~Securities ~~text~~Act of ~~the~~1933, ~~Second~~as ~~Amendment~~amended, ~~which~~or isthe ~~attached~~Exchange asAct ~~Exhibit~~regardless ~~10.1~~of toany ~~this~~general ~~Current~~incorporation ~~Report~~language onin ~~Form~~such ~~8-K~~filing, ~~and~~unless isexpressly incorporated ~~herein~~ by specific reference. in such filing.

Item 9.01 Financial Statement and Exhibits.

(d) Exhibits

Exhibit Number						Description of Document
10.1						Second Amendment to Loan Guarantee Agreement, dated February 13, 2026, by and between the Company and the United States Department of Energy
99.1						Press release announcing financial results, dated February 26, 2026
104						Cover page of this Current Report on Form 8-K formatted in Inline XBRL

SIGNATURE

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.

	EOS ENERGY ENTERPRISES, INC.
Dated: February 17, 2026	By:	/s/ Nathan Kroeker
Dated: February 26, 2026	By:	/s/ Nathan Kroeker
		Name:	Nathan Kroeker
		Title:	Interim Chief Financial Officer

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