| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 03/15/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Purchase | Common Stock | 2k | $53.46 | $106.9k | Joint with brother | 03/14/2023 |
| 03/15/2023 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Stock Units) | 661.6714 | $0.00 | $0 | | 03/15/2023 |
| 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) | 3.4k | $0.00 | $0 | | 01/03/2023 |
| 08/18/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Gift | Common Stock | 500 | $0.00 | $0 | | 08/18/2022 |
| 05/23/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 2k | $65.30 | $130.6k | | 05/23/2022 |
| 04/28/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 10k | $66.52 | $665.2k | | 04/28/2022 |
| 04/15/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Stock Units) | 582.4868 | $0.00 | $0 | | 04/15/2022 |
| 03/15/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 644 | $0.00 | $0 | | 03/15/2022 |
| 03/02/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 3.3k | $73.23 | $239.8k | | 03/02/2022 |
| 01/03/2022 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Compensation) | 3.3k | $0.00 | $0 | | 01/03/2022 |
| 10/28/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Stock Units) | 179.7265 | $0.00 | $0 | | 10/28/2021 |
| 03/17/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Stock Units) | 681.0321 | $0.00 | $0 | | 03/16/2021 |
| 03/16/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 569 | $0.00 | $0 | | 03/16/2021 |
| 02/12/2021 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 3.2k | $70.01 | $223.7k | | 02/12/2021 |
| 12/15/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 10.2k | $65.40 | $669.7k | | 12/15/2020 |
| 10/28/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 172 | $0.00 | $0 | | 10/28/2020 |
| 04/15/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Stock Units) | 590.3372 | $0.00 | $0 | | 04/15/2020 |
| 03/17/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 667 | $0.00 | $0 | | 03/17/2020 |
| 01/01/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Compensation) | 3.1k | $0.00 | $0 | | 01/01/2020 |
| 12/02/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 3.6k | $67.66 | $245.7k | | 12/02/2019 |
| 12/02/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 3.6k | $37.77 | $137.1k | | 12/02/2019 |
| 05/24/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Gift | Common Stock | 618 | $0.00 | $0 | Joint with brother | 05/24/2019 |
| 03/20/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 576 | $0.00 | $0 | | 03/18/2019 |
| 03/18/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Stock Units) | 625.4973 | $0.00 | $0 | | 03/18/2019 |
| 01/01/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Compensation) | 3k | $0.00 | $0 | | 01/01/2019 |
| 03/20/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Compensation) | 562.9276 | $0.00 | $0 | | 03/20/2018 |
| 03/20/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Stock Units) | 611 | $0.00 | $0 | | 03/20/2018 |
| 01/01/2017 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Phantom Stock (Deferred Compensation) | 2.9k | $0.00 | $0 | | 01/01/2017 |
| 10/25/2013 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 6.9k | $36.72 | $253.4k | | 10/25/2013 |
| 10/25/2013 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 3.6k | $24.84 | $89.5k | | 10/25/2013 |
| 10/25/2013 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 3.3k | $23.74 | $78.3k | | 10/25/2013 |
| 03/20/2013 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 158.7567 | $29.92 | $4.8k | | 03/19/2013 |
| 03/19/2013 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Stock Option | 4.6k | $29.79 | $138k | | 03/19/2013 |
| 09/27/2012 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Phantom Stock (Deferred Compensation) | 393.0818 | $28.62 | $11.3k | | 09/27/2012 |
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