Eos Energy Enterprises, Inc.

B. Riley Principal 150 Merger Corp. (Nasdaq: BMRG), a blank-check company sponsored by B. Riley Principal Investments, LLC — an affiliate of diversified financial firm B. Riley Financial, Inc. — completed its initial public offering in February 2020 targeting the energy sector. The SPAC filed a Form DEFA14A with the SEC on June 24, 2020, submitting additional definitive proxy soliciting materials in connection with its proposed business combination with Eos Energy Enterprises, Inc., a New Jersey-based developer of zinc-based battery energy storage systems. The transaction ultimately closed in November 2020, with the combined company rebranding and trading under the Eos Energy Enterprises name. Visit SpacDesk and sign up for full data on BMRG, its sponsor history, and the complete deal timeline.