| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 03/16/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 393.7373 | $53.97 | $21.3k | | 03/16/2023 |
| 03/14/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 1.2k | $0.00 | $0 | | 03/14/2023 |
| 01/03/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Compensation under Merchants plan) | 7.5k | $0.00 | $0 | | 01/03/2023 |
| 12/15/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 355.5295 | $59.77 | $21.2k | | 12/15/2022 |
| 09/22/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 309.4538 | $64.63 | $20k | | 09/22/2022 |
| 06/16/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 319.2848 | $62.64 | $20k | | 06/16/2022 |
| 03/17/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 275.2546 | $72.66 | $20k | | 03/17/2022 |
| 03/15/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 644 | $0.00 | $0 | | 03/15/2022 |
| 12/16/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 261.2512 | $71.77 | $18.7k | | 12/16/2021 |
| 06/17/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 231.2531 | $81.08 | $18.8k | | 06/17/2021 |
| 03/18/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 237.8536 | $78.83 | $18.7k | | 03/18/2021 |
| 03/16/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 569 | $0.00 | $0 | | 03/16/2021 |
| 12/17/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 306.1849 | $65.32 | $20k | | 12/17/2020 |
| 10/28/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 172 | $0.00 | $0 | | 10/28/2020 |
| 09/17/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 344.7087 | $58.02 | $20k | | 09/17/2020 |
| 06/18/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 352.5472 | $56.73 | $20k | | 06/18/2020 |
| 03/19/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 331.675 | $60.30 | $20k | | 03/19/2020 |
| 03/17/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 667 | $0.00 | $0 | | 03/17/2020 |
| 12/19/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 265.882 | $70.52 | $18.7k | | 12/19/2019 |
| 09/19/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 252.3684 | $64.39 | $16.3k | | 09/19/2019 |
| 06/20/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 254.2638 | $63.91 | $16.2k | | 06/20/2019 |
| 03/21/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 273.523 | $59.41 | $16.3k | | 03/21/2019 |
| 03/20/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 576 | $0.00 | $0 | | 03/19/2019 |
| 12/20/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 292.0036 | $55.65 | $16.3k | | 12/20/2018 |
| 09/20/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 255.9055 | $63.50 | $16.2k | | 09/20/2018 |
| 06/28/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 272.8799 | $59.55 | $16.2k | | 06/28/2018 |
| 03/22/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 299.0431 | $54.34 | $16.3k | | 03/22/2018 |
| 03/20/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 611 | $0.00 | $0 | | 03/20/2018 |
| 12/22/2017 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 405 | $54.72 | $22.2k | By Family Trust | 12/22/2017 |
| 01/20/2017 | MERCHANTS BANCSHARES INC | MBVT | Grant | Common Stock | 348 | $52.35 | $18.2k | | 01/20/2017 |
| 10/24/2016 | MERCHANTS BANCSHARES INC | MBVT | Grant | Common Stock | 487 | $32.56 | $15.9k | | 10/24/2016 |