| Michael N. Abdo |
CBU |
Common Stock |
Tax liability |
-8.11% |
|
|
-707 |
8,010 |
04 Mar 2026 |
Direct |
| Michael N. Abdo |
CBU |
Common Stock |
Award |
28.8% |
|
|
1,948 |
8,717 |
04 Mar 2026 |
Direct |
| A. Gillan Myer |
CBU |
Common Stock |
Tax liability |
-12.4% |
|
|
-943 |
6,647 |
04 Mar 2026 |
Direct |
| A. Gillan Myer |
CBU |
Common Stock |
Award |
51% |
|
|
2,562 |
7,590 |
04 Mar 2026 |
Direct |
| Dimitar Karaivanov |
CBU |
Common Stock |
Tax liability |
-10.7% |
|
|
-2,825 |
23,657 |
04 Mar 2026 |
Direct |
| Dimitar Karaivanov |
CBU |
Common Stock |
Award |
24.6% |
|
|
5,224 |
26,482 |
04 Mar 2026 |
Direct |
| A. Gillan Myer |
CBU |
Common Stock |
Tax liability |
-9.41% |
|
|
-522 |
5,028 |
02 Mar 2026 |
Direct |
| Deresa Fischer Durkee |
CBU |
Common Stock |
Tax liability |
-6.45% |
|
|
-357 |
5,181 |
02 Mar 2026 |
Direct |
| Michael N. Abdo |
CBU |
Common Stock |
Tax liability |
-6.69% |
|
|
-485 |
6,769 |
02 Mar 2026 |
Direct |
| Matthew K. Durkee |
CBU |
Common Stock |
Tax liability |
-12.2% |
|
|
-399 |
2,858 |
02 Mar 2026 |
Direct |
| Dimitar Karaivanov |
CBU |
Common Stock |
Tax liability |
-10.5% |
|
|
-2,501 |
21,258 |
02 Mar 2026 |
Direct |
| John F. Whipple |
CBU |
Common Stock |
Sale |
-33.3% |
$276,704 |
$65.17 |
-4,246 |
8,506 |
04 Feb 2026 |
Direct |
| John F. Whipple |
CBU |
Common Stock |
Options Exercise |
49.9% |
|
|
4,246 |
12,752 |
04 Feb 2026 |
Direct |
| John F. Whipple |
CBU |
Stock Option |
Options Exercise |
-100% |
|
|
-4,246 |
0 |
04 Feb 2026 |
Direct |
| Sally A. Steele |
CBU |
Common Stock |
Sale |
-9.1% |
$256,480 |
$64.12 |
-4,000 |
39,964 |
03 Feb 2026 |
Direct |
| Sally A. Steele |
CBU |
Common Stock |
Options Exercise |
10% |
|
|
4,000 |
43,964 |
03 Feb 2026 |
Direct |
| Sally A. Steele |
CBU |
Stock Option |
Options Exercise |
-20% |
|
|
-4,000 |
16,001 |
03 Feb 2026 |
Direct |
| Eric Stickels |
CBU |
Common Stock |
Sale |
-5.66% |
$129,492 |
$64.75 |
-2,000 |
33,342 |
03 Feb 2026 |
Direct |
| Michael N. Abdo |
CBU |
Common Stock |
Tax liability |
-19.6% |
|
|
-1,763 |
7,254 |
30 Jan 2026 |
Direct |
| Michael N. Abdo |
CBU |
Common Stock |
Options Exercise |
34% |
|
|
2,287 |
9,017 |
30 Jan 2026 |
Direct |
| Michael N. Abdo |
CBU |
Stock Option |
Options Exercise |
-100% |
|
|
-2,287 |
0 |
30 Jan 2026 |
Direct |
| A. Gillan Myer |
CBU |
Common Stock |
Sale |
-100% |
$203,054 |
$58.85 |
-3,450 |
0 |
29 Dec 2025 |
By 401(k) Plan |
| Michele Sullivan |
CBU |
Deferred Stock (Deferred Compensation) |
Award |
15.4% |
|
|
410 |
3,063 |
18 Dec 2025 |
Direct |
| Savneet Singh |
CBU |
Deferred Stock (Deferred Compensation) |
Award |
33.8% |
|
|
346 |
1,369 |
18 Dec 2025 |
Direct |
| Neil E. Fesette |
CBU |
Phantom Stock (Deferred Compensation) |
Award |
2.52% |
|
|
189 |
7,713 |
18 Dec 2025 |
Direct |
| John Parente |
CBU |
Common Stock |
Tax liability |
-3.62% |
|
|
-2,683 |
71,391 |
16 Dec 2025 |
Direct |
| John Parente |
CBU |
Common Stock |
Options Exercise |
6.08% |
|
|
4,246 |
74,074 |
16 Dec 2025 |
Direct |
| John Parente |
CBU |
Stock Option |
Options Exercise |
-100% |
|
|
-4,246 |
0 |
16 Dec 2025 |
Direct |
| John F. Whipple |
CBU |
Common Stock |
Options Exercise |
19.2% |
|
|
1,370 |
8,506 |
01 Dec 2025 |
Direct |
| John F. Whipple |
CBU |
Phantom Stock (Deferred Compensation) |
Options Exercise |
-19.4% |
|
|
-1,370 |
5,707 |
01 Dec 2025 |
Direct |
| Raymond C. Pecor III |
CBU |
Common Stock |
Gift |
4.97% |
|
|
530 |
11,192 |
16 Oct 2025 |
By Trust |
| Raymond C. Pecor III |
CBU |
Common Stock |
Gift |
2.69% |
|
|
265 |
10,107 |
16 Oct 2025 |
Direct |
| Michele Sullivan |
CBU |
Deferred Stock (Deferred Compensation) |
Award |
18.9% |
|
|
416 |
2,621 |
18 Sep 2025 |
Direct |
| Savneet Singh |
CBU |
Deferred Stock (Deferred Compensation) |
Award |
53% |
|
|
351 |
1,015 |
18 Sep 2025 |
Direct |
| Neil E. Fesette |
CBU |
Phantom Stock (Deferred Compensation) |
Award |
2.68% |
|
|
192 |
7,382 |
18 Sep 2025 |
Direct |
| Jeffrey M. Levy |
CBU |
Common Stock |
Sale |
-17.8% |
$88,380 |
$61.38 |
-1,440 |
6,657 |
27 Aug 2025 |
Direct |
| Neil E. Fesette |
CBU |
Phantom Stock (Deferred Compensation) |
Award |
3.04% |
|
|
212 |
7,189 |
20 Jun 2025 |
Direct |
| Michele Sullivan |
CBU |
Deferred Stock (Deferred Compensation) |
Award |
27.6% |
|
|
477 |
2,204 |
20 Jun 2025 |
Direct |
| Savneet Singh |
CBU |
Deferred Stock (Deferred Compensation) |
Award |
115.1% |
|
|
355 |
663 |
20 Jun 2025 |
Direct |
| Marya Burgio Wlos |
CBU |
Common Stock |
Award |
|
|
|
2,266 |
2,266 |
02 May 2025 |
Direct |
| Sally A. Steele |
CBU |
Common Stock |
Options Exercise |
3.05% |
|
|
1,181 |
39,964 |
15 Apr 2025 |
Direct |
| Sally A. Steele |
CBU |
Phantom Stock (Deferred Stock Units) |
Options Exercise |
-48.9% |
|
|
-1,181 |
1,236 |
15 Apr 2025 |
Direct |
| Jeffery J. Knauss |
CBU |
Common Stock |
Options Exercise |
0.34% |
|
|
12 |
3,566 |
14 Apr 2025 |
Direct |
| Jeffery J. Knauss |
CBU |
Phantom Stock (Deferred Stock Units) |
Options Exercise |
-0.97% |
|
|
-12 |
1,225 |
14 Apr 2025 |
Direct |
| Eric Stickels |
CBU |
Common Stock |
Options Exercise |
0.01% |
|
|
3 |
35,342 |
14 Apr 2025 |
Direct |
| Eric Stickels |
CBU |
Phantom Stock (Deferred Stock Units) |
Options Exercise |
-0.07% |
|
|
-3 |
4,165 |
14 Apr 2025 |
Direct |
| Mark J. Bolus |
CBU |
Common Stock |
Options Exercise |
0.01% |
|
|
12 |
103,828 |
14 Apr 2025 |
Direct |
| Mark J. Bolus |
CBU |
Phantom Stock (Deferred Stock Units) |
Options Exercise |
-0.48% |
|
|
-12 |
2,479 |
14 Apr 2025 |
Direct |
| John Parente |
CBU |
Common Stock |
Options Exercise |
0.02% |
|
|
12 |
69,828 |
14 Apr 2025 |
Direct |
| John Parente |
CBU |
Phantom Stock (Deferred Stock Units) |
Options Exercise |
-0.97% |
|
|
-12 |
1,225 |
14 Apr 2025 |
Direct |