| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 03/20/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Purchase | Common Stock | 1000 | $55.42 | $55.4k | | 03/20/2023 |
| 03/20/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Purchase | Common Stock | 1000 | $55.42 | $55.4k | | 03/20/2023 |
| 03/14/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 1.2k | $0.00 | $0 | | 03/14/2023 |
| 04/29/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Purchase | Common Stock | 180 | $66.37 | $11.9k | | 04/29/2022 |
| 03/15/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 644 | $0.00 | $0 | | 03/15/2022 |
| 05/20/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Purchase | Common Stock | 439 | $79.81 | $35k | | 05/20/2021 |
| 03/16/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 569 | $0.00 | $0 | | 03/16/2021 |
| 10/28/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 172 | $0.00 | $0 | | 10/28/2020 |
| 03/26/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Purchase | Common Stock | 675 | $54.20 | $36.6k | | 03/26/2020 |
| 03/17/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 667 | $0.00 | $0 | | 03/17/2020 |
| 11/26/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Purchase | Common Stock | 368 | $67.62 | $24.9k | | 11/26/2019 |