| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 07/15/2023 | NBT BANCORP INC | NBTB | Payment of Exercise | NBT Bancorp Inc. Common Stock | 421 | $33.03 | $13.9k | | 07/15/2023 |
| 07/15/2023 | NBT BANCORP INC | NBTB | Payment of Exercise | NBT Bancorp Inc. Common Stock | 361 | $33.03 | $11.9k | | 07/15/2023 |
| 03/20/2023 | NBT BANCORP INC | NBTB | Grant | NBT Bancorp Inc. Common Stock | 4.2k | $0.00 | $0 | | 03/20/2023 |
| 03/07/2023 | NBT BANCORP INC | NBTB | Purchase | NBT Bancorp Inc. Common Stock | 2.3k | $38.50 | $88.9k | | 03/07/2023 |
| 07/15/2022 | NBT BANCORP INC | NBTB | Payment of Exercise | NBT Bancorp Inc. Common Stock | 421 | $38.35 | $16.1k | | 07/15/2022 |
| 07/06/2022 | NBT BANCORP INC | NBTB | Grant | NBT Bancorp Inc. Common Stock | 3k | $0.00 | $0 | | 07/06/2022 |
| 04/27/2022 | NBT BANCORP INC | NBTB | Purchase | NBT Bancorp Inc. Common Stock | 3k | $35.60 | $106.8k | | 04/27/2022 |
| 03/21/2022 | NBT BANCORP INC | NBTB | Grant | NBT Bancorp Inc. Common Stock | 3.7k | $0.00 | $0 | | 03/21/2022 |
| 11/26/2021 | NBT BANCORP INC | NBTB | Purchase | NBT Bancorp Inc. Common Stock | 1.3k | $35.57 | $45k | | 11/26/2021 |
| 07/29/2021 | NBT BANCORP INC | NBTB | Purchase | NBT Bancorp Inc. Common Stock | 4.2k | $35.14 | $148.8k | | 07/28/2021 |
| 07/28/2021 | NBT BANCORP INC | NBTB | Purchase | NBT Bancorp Inc. Common Stock | 1.5k | $34.27 | $51.4k | | 07/28/2021 |
| 06/30/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Common Stock | 615 | $0.00 | $0 | | 06/30/2020 |
| 04/27/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 5k | $28.78 | $145.2k | | 04/24/2020 |
| 04/27/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 5k | $60.67 | $306k | | 04/24/2020 |
| 04/24/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 4.5k | $28.78 | $128.3k | | 04/24/2020 |
| 04/24/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 4.5k | $60.38 | $269.2k | | 04/24/2020 |
| 03/05/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Payment of Exercise | Common Stock | 863 | $60.81 | $52.5k | | 03/05/2020 |
| 03/03/2020 | COMMUNITY BANK SYSTEM, INC. | CBU | Payment of Exercise | Common Stock | 863 | $60.81 | $52.5k | | 03/05/2020 |
| 10/29/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 6.5k | $27.36 | $177.2k | | 10/29/2019 |
| 10/29/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Payment of Exercise | Common Stock | 4.5k | $68.57 | $307.9k | | 10/29/2019 |
| 03/20/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Stock Option | 13.2k | $59.41 | $782.8k | | 03/20/2019 |
| 03/20/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Common Stock | 3.2k | $0.00 | $0 | | 03/20/2019 |
| 03/01/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Payment of Exercise | Common Stock | 763 | $64.79 | $49.4k | | 03/01/2019 |
| 01/08/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Common Stock | 11.9k | $0.00 | $0 | | 01/08/2019 |
| 01/08/2019 | COMMUNITY BANK SYSTEM, INC. | CBU | Payment of Exercise | Common Stock | 5.7k | $60.34 | $342.2k | | 01/08/2019 |
| 05/08/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 1.2k | $19.48 | $24.1k | | 05/08/2018 |
| 03/20/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Common Stock | 2.2k | $0.00 | $0 | | 03/20/2018 |
| 03/20/2018 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Stock Option | 9.3k | $55.92 | $518.1k | | 03/20/2018 |
| 03/15/2017 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Common Stock | 1.8k | $0.00 | $0 | | 03/15/2017 |
| 03/15/2017 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Stock Option | 7.9k | $57.12 | $448.6k | | 03/15/2017 |
| 01/26/2017 | COMMUNITY BANK SYSTEM, INC. | CBU | Exercise | Stock Option | 5.4k | $19.48 | $105.9k | | 01/26/2017 |
| 01/26/2017 | COMMUNITY BANK SYSTEM, INC. | CBU | Sale | Common Stock | 5.4k | $61.76 | $335.7k | | 01/26/2017 |
| 03/21/2012 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Common Stock | 2.1k | $0.00 | $0 | | 03/21/2012 |
| 03/21/2012 | COMMUNITY BANK SYSTEM, INC. | CBU | Grant | Stock Option | 9.5k | $28.78 | $273.5k | | 03/21/2012 |