ESS Tech, Inc. filings document the public-company records of an energy storage manufacturer focused on long-duration iron flow systems. Recent disclosures include Form 8-K reports for operating results and financial condition, material agreements, capital-structure matters, and securities identified as common stock and warrants.
The company's proxy materials cover annual meeting matters, board composition, executive compensation and corporate-governance practices. Other filings record leadership changes, shareholder voting matters, liquidity and financing disclosures, and formal updates tied to commercialization of ESS energy storage products.
ESS Tech, Inc. said NYSE Regulation suspended trading in its common stock on October 2, 2026 and began delisting proceedings after the company fell below the NYSE standard requiring average global market capitalization of at least $15,000,000 over a consecutive 30-trading-day period. This is separate from a September 24, 2026 delisting determination under another NYSE standard, which remains in effect.
As of October 5, 2026, the stock may be quoted and traded in the over-the-counter market under GWHT. ESS says that market is significantly more limited and likely to be less liquid, and could further depress the trading price. The company intends to request review by an NYSE committee within 10 business days of receiving the notice and continues pursuing strategic transaction opportunities it says could address the market-capitalization issue. ESS also said it remains subject to Exchange Act reporting requirements.
ESS Tech, Inc. said NYSE Regulation determined to commence proceedings to delist its common stock, which trades as GWH, after the company was unable to demonstrate that it had regained compliance with continued-listing standards by the end of its maximum plan period. The standard requires either at least $50 million in stockholders’ equity or at least $50 million in total market capitalization on a 30-trading-day average basis.
ESS Tech currently intends to request a review by an NYSE committee and appeal the determination, although it said there can be no assurance the appeal will succeed. A written review request must be filed within 10 business days after receipt of the notice. NYSE will announce a trading-suspension date if no timely review is requested, the company decides not to appeal, the committee determines trading should be suspended, or other material developments occur. After a suspension announcement, NYSE would apply to the SEC to delist the shares.
ESS Tech, Inc. seeks approval for a board-discretionary reverse split at a whole-number ratio from 1-for-8 to 1-for-30, with a proportional reduction in the 1,000,000,000 authorized common shares. If approved, the board may choose the ratio or abandon both actions before the meeting’s one-year anniversary; approval would not require implementation. ESS says the proposal is intended to address an NYSE minimum-price deficiency after its average closing price was below $1.00 over 30 consecutive trading days; the stock closed at $0.3510 on the September 14, 2026 record date.
Stockholders are also asked to approve issuance upon exercise of warrants from the August 2026 offering: 6,400,000 shares sold at $0.50 per share, plus warrants for 13,120,000 shares in total, including the placement-agent warrant. The offering closed August 21, 2026 and yielded approximately $2.5 million in net proceeds. The warrants cannot be exercised before stockholder approval; specified price-protection and reverse-split adjustments could increase the number of warrant shares. The board recommends a FOR vote on both proposals.
ESS Tech, Inc. (GWH) has filed a resale prospectus covering up to 13,120,000 shares of common stock issuable upon exercise of outstanding warrants held by existing investors and its placement agent. These include 12,800,000 Common Warrant Shares and 320,000 Placement Agent Warrant Shares, all with a $0.50 exercise price.
The company will not receive proceeds from resales, but could receive up to $6.6 million if all warrants are exercised for cash, which it currently expects to use for working capital, general corporate purposes, and about $500,000 to repay a promissory note. The warrants are not exercisable until stockholders approve their issuance and a reverse split to regain NYSE minimum price compliance. Anti-dilution and reverse-split adjustments may increase shares issuable on exercise. ESS’s auditor has highlighted recurring losses and negative operating cash flows that raise substantial doubt about its ability to continue as a going concern.
ESS Tech, Inc. (GWH) is calling a special virtual stockholder meeting on October 16, 2026 to vote on two key capital-structure proposals. The first would authorize the board, at its discretion, to implement a reverse stock split of the common stock at a ratio between 1-for-8 and 1-for-30, together with a proportional reduction in authorized common shares from 1,000,000,000 to as few as 33,333,333. This flexibility is intended to help ESS regain compliance with the NYSE’s $1.00 minimum bid requirement after receiving a non-compliance notice on June 9, 2026, and to reduce certain costs tied to a very large authorized share count.
The second proposal seeks stockholder approval under NYSE Rule 312.03(c) for the issuance of common shares upon exercise of 13,120,000 warrants issued in an August 2026 financing, where ESS sold 6,400,000 shares at $0.50 per share and granted related warrants at the same exercise price, generating approximately $2.5 million in net proceeds. These warrants include anti-dilution and reverse-split adjustment features and cannot be exercised unless stockholders approve this proposal, which could lead to additional dilution if exercised.
ESS Tech, Inc. (GWH) has filed a resale shelf registration on Form S-3 covering up to 13,120,000 shares of common stock issuable upon exercise of outstanding warrants held by existing investors and the placement agent. This consists of 12,800,000 shares underlying investor Common Warrants and 320,000 shares underlying a Placement Agent Warrant, each with an exercise price of $0.50 per share.
The company will not receive proceeds from resale of the shares, but could receive up to approximately $6.6 million in cash if all warrants are exercised for cash. About $500,000 of any such proceeds is expected to be used to repay a promissory note, with the balance for working capital and general corporate purposes. The warrants are not exercisable unless and until stockholders approve both the issuance and a reverse stock split aimed at regaining NYSE minimum price compliance.
The filing highlights potential dilution and share overhang from the registered shares, as well as price-protection and reverse-split adjustment mechanics that can increase the number of shares issuable under the warrants. ESS’s latest audited financial statements include an auditor’s paragraph indicating substantial doubt about the company’s ability to continue as a going concern.
ESS Tech, Inc. (GWH) entered into new employment agreements with Chief Financial Officer Kate Suhadolnik and Chief Strategy Officer and General Counsel Kelly F. Goodman, effective August 28, 2026, memorializing existing terms of employment without changing their titles, roles, responsibilities, or annual cash incentive bonus eligibility.
Each executive will receive a base salary of $380,000. If employment ends under specified qualifying terminations during the Change in Control protective period (from one month before to twelve months after a Change in Control), the affected executive is entitled to: (i) a cash payment equal to 12 months of base salary, (ii) payment of 12 months of COBRA continuation premiums for the executive and covered dependents, and (iii) full acceleration of then-unvested, outstanding equity awards. The agreements also include customary confidentiality, non-solicitation, and non-competition covenants, and will be filed as exhibits to the Form 10-Q for the quarter ending September 30, 2026.
ESS Tech, Inc. (GWH) reported that its Chief Financial Officer, Kate Eileen Suhadolnik, executed a sale of 3,927 shares of common stock on 2026-08-21 at an average price of $0.4022 per share. According to the disclosure, these shares were sold to cover tax withholding obligations arising from the vesting of restricted stock units (RSUs). After this transaction, she directly holds 156,830 shares of ESS Tech common stock, a portion of which are RSUs representing a contingent right to receive shares.
ESS Tech, Inc. (GWH) insider Kelly F. Goodman, Chief Strategy Officer and General Counsel, reported a sale of 5,400 shares of Common Stock on 2026-08-21 at $0.4022 per share. The shares were sold to cover tax withholding obligations related to vesting restricted stock units, and 205,220 shares remain held directly, including RSUs that each represent a contingent right to one share of Common Stock.