Form 4 Filing for Eos Energy Enterprises, Inc.

This filing details a Form 4 submission for Eos Energy Enterprises, Inc. by reporting owner Marian Walters, who is a director. On December 22, 2025, Ms. Walters was granted 1,782 Restricted Stock Units (RSUs) with a transaction value of $0.00 per share. These RSUs represent a contingent right to receive one share of common stock. The RSUs are set to vest on the earlier of the first anniversary of the grant date or immediately prior to the next annual shareholders meeting. Following this transaction, Ms. Walters holds 1,782 shares of common stock underlying the RSUs. The filing was signed on December 23, 2025, by Michael Silberman as attorney-in-fact for Marian Walters.