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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): June 9, 2026
ESS TECH, INC.
(Exact Name of Registrant as Specified in Charter)
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| 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)
Not Applicable
(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:
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| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
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| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
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| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
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| ☐ | 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:
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| 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 whole warrant 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 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.
On June 9, 2026, ESS Tech, Inc. (the “Company”) received a written notice (the “Notice”) from the New York Stock Exchange (“NYSE”) indicating that the Company did not satisfy the continued listing standard set forth in Section 802.01C of the NYSE Listed Company Manual (“Section 802.01C”), as the average closing price of the Company’s common stock was less than $1.00 per share over a consecutive 30 trading-day period. As of June 8, 2026, the 30 trading-day average closing share price of the Company's common stock was $0.98. The Notice is a notice of deficiency, not delisting, and does not currently affect the listing or trading of the Company’s common stock on the NYSE.
Section 802.01C requires the Company to notify the NYSE, within 10 business days of receipt of the Notice, of its intent to cure this deficiency. The Company intends to notify the NYSE within this time period that it intends to regain compliance. Pursuant to Section 802.01C, the Company has a period of six months following receipt of the Notice to regain compliance with the minimum share price requirement. The Company can regain compliance with the minimum share price requirement at any time during the six-month cure period if, on the last trading day of any calendar month during the cure period, the Company has a closing share price of at least $1.00 and an average closing share price of at least $1.00 over the 30 trading-day period ending on the last trading day of that month. If the Company determines to remedy the non-compliance by taking action that will require shareholder approval, the Company must obtain shareholder approval no later than its next annual meeting and implement such action promptly thereafter.
The Company intends to monitor closely the closing bid price of its common stock and to consider plans for regaining compliance with Section 802.01C, including initiating a reverse stock split. While the Company plans to review all available options, there can be no assurance that it will be able to regain compliance with the applicable rules during the six-month compliance period, any subsequent extension period, or at all.
Item 7.01 Regulation FD Disclosure.
On June 15, 2026, the Company issued a press release related to the foregoing. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference to this Item 7.01.
The information in this Item 7.01, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and is not to be incorporated by reference into any filing by Company under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language contained in such filing, unless otherwise expressly stated in such filing.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
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Exhibit
No. | | |
| 99.1 | | |
| 104 | | Cover Page Interactive Data File (embedded within the Inline XBRL document) |
Forward-Looking Statements
The Company cautions you that statements included in this report that are not a description of historical facts are forward-looking statements. These forward-looking statements include statements regarding the Company’s plans, intentions, expectations, or objectives with respect to its ability to regain compliance with the NYSE’s continued listing standards, including a potential reverse stock split. The inclusion of forward-looking statements should not be regarded as a representation by the Company that any of these results will be achieved. Actual results may differ from those set forth in this report due to the risks and uncertainties associated with liquidity concerns that may affect other banking institutions, as well as risks and uncertainties inherent in the Company’s business, including those described in the Company's other filings with the Securities Exchange Commission. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and the Company undertakes no obligation to revise or update this report to reflect events or circumstances after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement. This caution is made under the safe harbor provisions of Section 21E of the Private Securities Litigation Reform Act of 1995.
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: June 15, 2026
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| ESS TECH, INC. |
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| By: | /s/ Kate Suhadolnik |
| Name: | Kate Suhadolnik |
| Title: | Chief Financial Officer |