ESS Tech, Inc. Form 8-K Filing Summary

ESS Tech, Inc. has amended its Sales Agreement for its at-the-market offering program. The amendment, dated July 16, 2026, involves the termination of the agreement with BMO Capital Markets Corp., Canaccord Genuity LLC, Needham & Company, LLC, and Stifel, Nicolaus & Company, Incorporated. Roth Capital Partners, LLC has been added as an additional sales agent and will act as the qualified independent underwriter, replacing Canaccord Genuity LLC. The company has also filed an amendment to its prospectus supplement related to this offering. This amendment allows for the sale of up to $75 million in common stock under the at-the-market program. The company affirms that its representations and warranties remain true and correct, and all required covenants have been met.