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ESS Tech, Inc. received an amended Schedule 13G filing (Amendment No. 2) reporting that Alyeska Investment Group, L.P., Alyeska Fund GP, LLC, and Anand Parekh collectively beneficially own 1,400,000 shares of ESS Tech common stock. This represents 4.76% of the outstanding common shares. The reporting persons have shared voting and shared dispositive power over all 1,400,000 shares and no sole voting or dispositive power. The filing also indicates that the group now holds 5 percent or less of the class.
ESS Tech, Inc. received an updated ownership report showing that Ayrton Capital LLC, Alto Opportunity Master Fund, SPC – Segregated Master Portfolio B, and Waqas Khatri collectively report beneficial ownership of 2,563,934 shares of common stock as of June 30, 2026. This consists of 463,934 shares of common stock and 2,100,000 shares issuable upon exercise of warrants, which are subject to a 9.99% beneficial ownership blocker. Based on 29,389,170 shares outstanding as of May 4, 2026 plus the warrant shares, the filing reports an 8.14% stake for each Reporting Person, with sole voting and sole dispositive power over these shares and no shared voting or dispositive power.
ESS Tech, Inc. reported very limited revenue and continued heavy losses for the three and six months ended June 30, 2026 while warning of substantial doubt about its ability to continue as a going concern. Total revenue was $0.1 million for the quarter and $0.2 million year-to-date, down sharply from prior-year periods as the company winds down legacy contracts and develops new Bridge™ sodium-ion and Energy Base products.
Cost of revenue was $7.5 million for the quarter and $14.7 million year-to-date, producing gross losses and reflecting higher depreciation and $4.3 million in asset abandonment charges tied to a manufacturing shift. Net loss to common stockholders was $15.6 million for the quarter and $31.5 million for six months. Cash used in operating activities was $22.4 million in the first half, leaving $10.8 million of unrestricted cash and cash equivalents and negative stockholders’ equity of $2.7 million. Management states that without near-term additional debt or equity financing, the company may need to curtail or cease operations or seek bankruptcy protection.
ESS Tech, Inc. reported very weak operating results for the quarter ended June 30, 2026 while highlighting a strategic pivot to sodium-ion energy storage and a potential business combination. Revenue for the quarter was $73 thousand, down sharply from the prior-year period, driven by fewer equipment deliveries, and the company generated a gross loss of $7.4 million.
Total operating expenses were $7.7 million, up 19% year over year, and quarterly net loss widened to $15.6 million, or $(0.46) per share. For the first half of 2026, net cash used in operating activities was $22.4 million, with $10.8 million of cash and cash equivalents on June 30, 2026 and $5.6 million of unrestricted cash and cash equivalents as of July 31, 2026. Stockholders’ equity turned negative at $(2.7) million.
Strategically, ESS is accelerating U.S.-made sodium-ion development and reports early-stage opportunities approaching $1 billion. It signed a non-binding letter of intent for a potential strategic business combination implying a combined enterprise value of about $515 million, under which current ESS shareholders would own an estimated 5–10% of the combined company if completed. ESS also signed a letter of intent with Juniper Energy targeting deployment of 500+ MWh of sodium-ion storage, including a planned 80 MWh California project, and has repaid $37 million of a $40 million promissory note.
ESS Tech, Inc. provides an update on its liquidity, stating that as of July 31, 2026 it held approximately $5.6 million in cash, cash equivalents and short-term investments.
The company notes that its independent registered public accounting firm has not audited, reviewed or performed any procedures on these balances and does not provide any opinion or assurance. The information is furnished under a current report rather than treated as filed for certain securities law purposes.