ESS Tech (NYSE: GWH) furnishes Q2 2025 earnings results press release

Rhea-AI Filing Summary

ESS Tech, Inc. filed a current report to note that it released its financial results for the quarter ended June 30, 2025. On August 14, 2025, the company issued a press release detailing its operating results and overall financial condition for that quarter.

The press release is furnished as Exhibit 99.1 and is not considered filed for liability purposes under the Exchange Act unless specifically incorporated into another filing. The report is signed on behalf of ESS Tech, Inc. by Interim Chief Financial Officer Kate Suhadolnik.

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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 14, 2025

ESS TECH, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware

001-39525

98-1550150

(State or other jurisdiction of incorporation)

(Commission File Number)

(I.R.S. Employer Identification Number)

26440 SW Parkway Ave., Bldg. 83 Wilsonville, Oregon						97070
(Address of principal executive offices)						(Zip code)

(855) 423-9920

(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:

☐ 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

GWH

The New York Stock Exchange

Warrants, each fifteen warrants exercisable for one share of common stock at an exercise price of $172.50

GWH.W

The New York Stock Exchange

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) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2).

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 14, 2025, ESS Tech, Inc. (the “Company”) issued a press release announcing financial results for the quarter ended June 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information furnished in this Item 2.02 and Exhibit 99.1 of this Current Report on Form 8-K shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01    Financial Statements and Exhibits

(d) Exhibits

Exhibit No.
99.1						Press release, dated August 14, 2025
104						Cover page interactive data file

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.

Dated: August 14, 2025

ESS TECH, INC.
By:			/s/ Kate Suhadolnik
Name:			Kate Suhadolnik
Title:			Interim Chief Financial Officer

FAQ

What did ESS Tech, Inc. (GWH) disclose in this 8-K filing?

ESS Tech, Inc. disclosed that it issued a press release announcing its financial results for the quarter ended June 30, 2025, and furnished the release as Exhibit 99.1.

Which period’s results are covered in ESS Tech, Inc. (GWH)’s latest press release?

The press release covers ESS Tech, Inc.’s financial results for the quarter ended June 30, 2025.

How is the ESS Tech, Inc. (GWH) press release treated for SEC liability purposes?

The press release furnished under Item 2.02 and as Exhibit 99.1 is not deemed “filed” for purposes of Section 18 of the Exchange Act unless it is expressly incorporated by reference in another filing.

Which exhibit in this ESS Tech, Inc. (GWH) 8-K contains the earnings press release?

Exhibit 99.1 contains the press release dated August 14, 2025, announcing ESS Tech, Inc.’s quarterly financial results.

Who signed this ESS Tech, Inc. (GWH) 8-K report?

The report was signed on behalf of ESS Tech, Inc. by Kate Suhadolnik, Interim Chief Financial Officer.

What stock and warrants of ESS Tech, Inc. (GWH) are listed on the NYSE?

ESS Tech, Inc. lists its common stock with the symbol GWH and its warrants, each fifteen exercisable for one share of common stock at an exercise price of $172.50, with the symbol GWH.W on the New York Stock Exchange.