| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Cosgrove Peter K | Executive Vice President & CCO | ONE CHEMUNG CANAL PLAZA, PO BOX 1522, ELMIRA | Kathleen E. Cook, Attorney-in-Fact, pursuant to Power of Attorney dated July 16, 2025 | 02 Mar 2026 | 0001785682 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CHMG | COMMON STOCK | Tax liability | $6,607 | -119 | -1.6% | $55.52 | 7,200 | 27 Feb 2026 | Direct |