Eos Energy Enterprises, Inc.

Eos Energy Enterprises, Inc. filed an 8-K with the SEC on June 30, 2026, under accession number 0000950103-26-009739, carrying the legacy SPAC ticker BMRG. The company became publicly traded through its merger with B. Riley Principal 150 Merger Corp, a blank-check vehicle sponsored by B. Riley Principal Sponsor Co. that completed its IPO in 2020. Eos Energy operates in the energy storage sector, focusing on zinc-based battery technology for grid-scale and commercial applications. Since the de-SPAC transaction closed, the company has continued as a publicly listed operating entity. Sign up on SpacDesk for full filing data, sponsor history, and deal analytics on BMRG and the broader SPAC universe.