Recent News

• 01.29.2026 - ESS Tech Awarded $9.9 Million Contract from Concurrent Technologies Corporation and U.S. Air Force Research Laboratory
• 01.29.2026 - ESS Tech, Inc. Announces $15 Million Registered Direct Offering Priced at a Premium to Market

Recent Filings

• 01.30.2026 - 424B5 Prospectus [Rule 424(b)(5)]
• 01.30.2026 - 8-K Current report
• 01.29.2026 - 8-K Current report
• 01.29.2026 - 3 Initial statement of beneficial ownership of securities
• 01.29.2026 - 4 Statement of changes in beneficial ownership of securities
• 01.06.2026 - 8-K Current report
• 01.06.2026 - EX-99.1 EX-99.1
• 12.11.2025 - EFFECT Notice of Effectiveness
• 12.11.2025 - 424B3 Prospectus [Rule 424(b)(3)]
• 12.11.2025 - 424B5 Prospectus [Rule 424(b)(5)]