| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Mastrangelo Joe | Chief Executive Officer, Director | C/O EOS ENERGY ENTERPRISES, INC., 3920 PARK AVENUE, EDISON | /s/ Michael Silberman as attorney-in-fact for Joe Mastrangelo | 05 Mar 2026 | 0001833309 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | EOSE | Common Stock | Purchase | $157,262 | +23,900 | +1.6% | $6.58 | 1,487,126 | 04 Mar 2026 | Direct |