| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| CBU | President, Retail Banking | Oct 02, 2022 | Option Exercise | $60.97 | 1,119 | 68,225 | 12,763 | Oct 14, 2022, 12:36 PM |
| CBU | EVP, Chief Banking Officer | Mar 04, 2022 | Option Exercise | $72.94 | 296 | 21,590 | 13,158 | Mar 08, 2022, 07:03 PM |
| CBU | EVP, Chief Banking Officer | Mar 05, 2021 | Option Exercise | $71.19 | 269 | 19,150 | 11,984 | Mar 08, 2021, 05:04 PM |
| CBU | EVP, Chief Credit Officer | Mar 05, 2020 | Option Exercise | $60.81 | 243 | 14,777 | 10,872 | Mar 09, 2020, 03:16 PM |
| CBU | EVP, Chief Credit Officer | Mar 03, 2020 | Option Exercise | $60.81 | 243 | 14,777 | 10,872 | Mar 06, 2020, 03:39 PM |
| CBU | EVP, Chief Credit Officer | Nov 11, 2019 | Option Exercise | $29.31 | 7,342 | 215,199 | 18,457 | Nov 12, 2019, 07:08 PM |
| CBU | EVP, Chief Credit Officer | Nov 11, 2019 | Sale | $68.59 | 7,342 | 503,581 | 11,115 | Nov 12, 2019, 07:08 PM |
| CBU | EVP, Chief Credit Officer | Mar 01, 2019 | Option Exercise | $64.79 | 227 | 14,707 | 10,254 | Mar 04, 2019, 12:00 AM |
| CBU | EVP, Chief Credit Officer | Jan 08, 2019 | Option Exercise | $60.34 | 1,306 | 78,804 | 10,481 | Jan 10, 2019, 02:45 PM |
| CBU | EVP, Chief Credit Officer | Jun 29, 2018 | Option Exercise | $27.12 | 2,681 | 72,706 | 10,908 | Jun 29, 2018, 04:00 PM |
| CBU | EVP, Chief Credit Officer | Jun 29, 2018 | Sale | $59.73 | 2,681 | 160,128 | 8,227 | Jun 29, 2018, 04:00 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| CBU | President, Retail Banking | Oct 02, 2022 | Option Exercise | 68,225 |
| CBU | EVP, Chief Banking Officer | Mar 04, 2022 | Option Exercise | 21,590 |
| CBU | EVP, Chief Banking Officer | Mar 05, 2021 | Option Exercise | 19,150 |
| CBU | EVP, Chief Credit Officer | Mar 05, 2020 | Option Exercise | 14,777 |
| CBU | EVP, Chief Credit Officer | Mar 03, 2020 | Option Exercise | 14,777 |
| CBU | EVP, Chief Credit Officer | Nov 11, 2019 | Option Exercise | 215,199 |
| CBU | EVP, Chief Credit Officer | Nov 11, 2019 | Sale | 503,581 |
| CBU | EVP, Chief Credit Officer | Mar 01, 2019 | Option Exercise | 14,707 |
| CBU | EVP, Chief Credit Officer | Jan 08, 2019 | Option Exercise | 78,804 |
| CBU | EVP, Chief Credit Officer | Jun 29, 2018 | Option Exercise | 72,706 |
| CBU | EVP, Chief Credit Officer | Jun 29, 2018 | Sale | 160,128 |