Ess Tech Inc SEC Filings

Form 144 filed by an insider of ESS Tech, Inc. (GWH) discloses a proposed sale of 5,062 common shares through Morgan Stanley Smith Barney on the NYSE, with an aggregate market value of $7,538.84. The filing shows the shares to be sold were acquired as restricted stock on multiple dates in 2023 and 2024, in lots of 1,288; 218; 212; 1,503; and 1,841 shares. The filing also reports a sale by the same person, Anthony Rabb, of 4,999 shares on 08/21/2025 for gross proceeds of $7,673.47.

The number of shares outstanding reported in the notice is 14,189,663, so the proposed sale represents a very small fraction of outstanding shares. The filer certifies they are not aware of any undisclosed material adverse information about the issuer. No earnings, forward guidance, or other operational details are included.

ESS Tech, Inc. (GWH) Form 4 reports that Kate Eileen Suhadolnik, serving as Interim CFO and an officer, had 1,232 shares of common stock disposed on 08/20/2025 under transaction code F at a price of $1.61 per share. The filing states these shares were withheld by the issuer upon vesting of restricted stock units to satisfy tax withholding obligations.

After the reported disposition, Ms. Suhadolnik beneficially owns 28,954 shares of common stock. The filing clarifies that a portion of the holdings are RSUs, each representing a contingent right to one share. The Form 4 is signed by power of attorney and reflects a routine insider tax-withholding disposition rather than an open-market sale.

Kate Eileen Suhadolnik, identified as Interim CFO and an officer of ESS Tech, Inc. (ticker GWH), reported beneficial ownership of 30,186 shares of common stock in an initial Form 3 filing for the event dated 08/01/2025. Of these shares, 23,805 are restricted stock units (RSUs) granted prior to Section 16 reporting obligations and the filing details multiple RSU grants with staggered vesting schedules beginning August 20, 2025. The form was signed via power of attorney on 08/28/2025.

Kelly F. Goodman, Interim CEO and director of ESS Tech, Inc. (GWH), reported a sale of 4,326 shares of common stock on 08/20/2025 at a price of $1.61 per share. After the reported transaction, Goodman beneficially owned 85,135 shares. The filing states the 4,326 shares were withheld by the issuer upon RSU vesting to satisfy tax withholding obligations, and that a portion of the reported holdings are restricted stock units (RSUs), each representing a contingent right to receive one share.

ESS Tech, Inc. reported interim results reflecting continued commercialization of its iron flow batteries and material liquidity strain. For the six months ended June 30, 2025 the company recorded a net loss of $29.1 million, used $30.6 million of cash in operating activities and had $0.8 million of unrestricted cash and cash equivalents as of June 30, 2025. Management disclosed substantial doubt about the company’s ability to continue as a going concern for 12 months and is evaluating financing options including additional equity, debt, or sales under a SEPA.

Key subsequent actions include a Standby Equity Purchase Agreement (SEPA) with an investor committing up to $25.0 million (sales subject to conditions) and sales of 1,214,633 shares for $2.0 million under the SEPA as of the statement date. The company also completed a $10.5 million sale and leaseback of a stack assembly line with UOP, issued and repaid $0.9 million of bridge promissory notes (with 15% exit fees), and sold 616,264 shares under an ATM for net proceeds of $0.7 million. The filing highlights cost-reduction measures, reduced operating expenses versus prior year periods, ongoing product commercialization efforts, related-party arrangements (notably with Honeywell/UOP), and reliance on future financings to fund operations.

ESS Tech, Inc. (NYSE: GWH) filed an 8-K disclosing the immediate, non-severance termination of Chief Financial Officer Anthony Rabb on 1-Aug-2025. The company states the dismissal is not related to accounting policies, reporting practices, or internal controls. Controller Kate Suhadolnik (age 36) is elevated to interim CFO, becoming principal financial and accounting officer effective the same date. Suhadolnik joined ESS in Sept-2021, became Controller in Apr-2023, and previously spent nine years at Deloitte & Touche. Her annual salary is $220,000 with discretionary cash/stock bonus; employment remains at-will. The board has started an internal/external search for a permanent CFO. No related-party transactions, family ties, or special arrangements were reported, and she has executed the standard indemnification agreement previously filed as Ex. 10.12.

The filing contains no new financial results or guidance. Investors should monitor potential impacts on capital-raising plans and execution risk while the CFO position is interim.