Cerberus Capital Management II, L.P. → Eos Energy Enterprises, Inc. EOSER

Item 4 is hereby amended and supplemented by the addition of the following: On July 8, 2026, Gregory Nixon resigned from his role as a director on the Board of Directors (the "Board") of Eos Energy Enterprises, Inc. (the "Issuer"). Mr. Nixon had been appointed to the Board by CCM Denali Equity pursuant to the terms of the Series B Preferred Stock. In addition, on July 8, 2026, Nathaniel Fick resigned as a Class III director on the Board, and on July 8, 2026, pursuant to the terms of the Series B Preferred Stock, CCM Denali Equity elected Mr. Fick to the Board to replace Mr. Nixon as a designee of the holder of the Series B Preferred Stock. Mr. Fick will continue to serve on the Board's Nominating and Corporate Governance Committee.