Ess Tech Inc SEC Filings

ESS Tech, Inc. (GWH) reported an insider equity transaction by its Interim CFO on 11/20/2025. The filing shows that 1,299 shares of common stock were withheld by the company when restricted stock units (RSUs) vested in order to cover tax withholding obligations at a price of $2.4 per share. After this withholding, the reporting person beneficially owned 27,655 shares of ESS Tech common stock, including RSUs, each representing a contingent right to receive one share upon vesting.

ESS Tech, Inc. (GWH) interim CEO reports Form 4 activity involving restricted stock units (RSUs). On 11/20/2025, 4,513 shares of common stock were withheld by the company upon RSU vesting to cover tax withholding obligations, using a transaction code "F" at a price of $2.40 per share. After this tax-related withholding, the reporting person directly beneficially owns 80,622 shares, a portion of which are RSUs, with each RSU representing a contingent right to receive one share of ESS Tech common stock.

ESS Tech, Inc. (GWH) furnished an update on its operations by announcing that it issued a press release with financial results for the quarter ended September 30, 2025. The press release, dated November 13, 2025, was furnished as Exhibit 99.1 under Item 2.02 — Results of Operations and Financial Condition.

The company stated the furnished information is not deemed “filed” under Section 18 of the Exchange Act. The report was signed by Interim Chief Financial Officer Kate Suhadolnik.

ESS Tech, Inc. filed a mixed S-3 registration covering up to $300,000,000 of securities, a $75,000,000 at‑the‑market common stock program, and the resale of up to 1,181,416 shares issuable upon exercise of previously issued warrants. The company may offer securities from time to time after effectiveness.

The ATM may be sold through Yorkville Securities, BMO Capital Markets, Canaccord Genuity, Needham & Company, and Stifel as agents, with a 3.0% commission on gross proceeds. ESS plans to use any primary offering proceeds for working capital and general corporate purposes. Common stock trades on the NYSE under “GWH,” and public warrants under “GWH.W.”

ESS Tech (GWH) launched an at-the-market program, entering a Sales Agreement that permits sales of up to $75 million of common stock through Yorkville Securities, BMO Capital Markets, Canaccord Genuity, Needham & Company, and Stifel as agents or principals.

The company will pay a 3.0% commission on gross proceeds. A filed prospectus supplement under its effective Form S-3 covers the shares. Net proceeds are earmarked primarily for its October 14, 2025 Promissory Note with YA II PN, LTD: proceeds first cover any installments due within thirty days, then 80% of remaining proceeds go to scheduled installments until the note is fully repaid. The remaining 20% while the note is outstanding, and all proceeds after repayment, are for working capital and general corporate purposes. Canaccord Genuity acts as the qualified independent underwriter under FINRA Rule 5121.

ESS Tech, Inc. (GWH) launched an at‑the‑market offering of up to $75,000,000 of common stock under a Sales Agreement with Yorkville Securities, BMO Capital Markets, Canaccord Genuity, Needham & Company, and Stifel. Sales may be made from time to time as defined in Rule 415(a)(4). The Agents will receive a 3.0% commission on gross proceeds. Our common stock last traded at $4.40 on November 12, 2025.

Net proceeds will be applied pursuant to a Promissory Note with YA II PN, LTD: proceeds first satisfy any installments due within thirty days; thereafter, 80% of remaining proceeds go to installment payments in order of maturity until the note is repaid, with the balance and all post‑repayment proceeds for working capital and general corporate purposes. Because Yorkville Securities is an affiliate of YA II, this constitutes a FINRA Rule 5121 conflict of interest; Canaccord serves as qualified independent underwriter. ESS highlights dilution risk and notes the auditor’s going concern explanatory paragraph. Shares outstanding were 15,390,884 as of September 30, 2025.

ESS Tech, Inc. (GWH) reported Q3 2025 results with total revenue of $214 thousand and a net loss of $10.4 million. Gross loss was $4.7 million as cost of revenue of $4.9 million outweighed modest sales. Operating expenses fell year over year to $5.1 million, reflecting reduced R&D and SG&A.

Cash and cash equivalents were $3.5 million as of September 30, 2025, and net cash used in operating activities was $36.4 million for the nine months. Stockholders’ equity shifted to a deficit of $1.8 million from $28.9 million at year-end 2024, and management disclosed substantial doubt about the company’s ability to continue as a going concern.

ESS completed a $10.5 million sale-leaseback of its stack assembly line in July (cash of $4.0 million and $6.5 million applied to prepayments) and raised $3.6 million under a standby equity purchase agreement during Q3. Subsequent to quarter-end, the company entered into a promissory note of up to $40 million and issued a warrant for up to 1,052,104 shares; it also completed $25 million of aggregate sales under the equity purchase agreement.

ESS Tech, Inc. (GWH) reported a Form 4 showing a director received 13,513 restricted stock units (RSUs) on 10/13/2025 at a stated price of $0. Following this grant, the director beneficially owns 90,825 shares on a direct basis.

The RSUs vest on the earlier of May 17, 2025 or the day prior to the next annual meeting of stockholders. Settlement has been deferred to a date within 30 days of the earlier of the director’s separation of service (under Section 409A) or a qualifying change of control as defined in the company’s plan.

ESS Tech (GWH) reported an insider equity grant on Form 4. A company director acquired 13,513 restricted stock units (RSUs) on 10/13/2025 at $0. Following the grant, the reporting person beneficially owned 38,886 shares, held directly.

The RSUs vest on the earlier of May 17, 2025 or the day prior to the next annual meeting. Settlement is deferred to within 30 days of separation from service or a qualifying change of control under Section 409A. Each RSU represents one share of common stock.