Form 4 Filing for Eos Energy Enterprises, Inc.

This filing details stock transactions by Song Haiyan, a director at Eos Energy Enterprises, Inc. (EOSE). On September 11, 2026, Haiyan acquired 10,000 shares of Common Stock at $3.95 per share, bringing their total to 10,000 shares. Subsequently, on September 14, 2026, an additional 5,000 shares were acquired at $3.84 per share, resulting in a total of 15,000 shares held. All transactions were marked as direct ownership.