Insider at

04

Insider transactions

05
0 buys (P) 1 sells (S) Net: $-256,480 + 88 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

88 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 3, 2026 CBU S 4,000 $64.12 $256,480 39,964 Direct -9.10% Disposed -5.3% (price as of 2026-10-02)
Jan. 29, 2024 CBU S 3,501 $48.76 $170,709 33,634 Direct -9.43% Disposed 24.5% (price as of 2026-10-02)
Dec. 26, 2023 CBU S 9,400 $53.05 $498,670 33,634 Direct -21.84% Disposed 14.4% (price as of 2026-10-02)
March 15, 2023 CBU P 2,000 $53.46 $106,920 4,585 Indirect +77.37% Acquired 13.5% (price as of 2026-10-02)
May 23, 2022 CBU S 2,000 $65.30 $130,600 39,506 Direct -4.82% Disposed -7.1% (price as of 2026-10-02)
April 28, 2022 CBU S 10,000 $66.52 $665,200 41,506 Direct -19.42% Disposed -8.8% (price as of 2026-10-02)
March 2, 2022 CBU S 3,275 $73.23 $239,828 50,924 Direct -6.04% Disposed -17.1% (price as of 2026-10-02)
Feb. 12, 2021 CBU S 3,195 $70.01 $223,682 50,062 Direct -6.00% Disposed -13.3% (price as of 2026-10-02)
Dec. 15, 2020 CBU S 10,240 $65.40 $669,696 50,062 Direct -16.98% Disposed -7.2% (price as of 2026-10-02)
Dec. 2, 2019 CBU S 3,631 $67.66 $245,673 56,602 Direct -6.03% Disposed -10.3% (price as of 2026-10-02)
Nov. 21, 2016 CBU S 4,631 $54.88 $254,149 46,744 Direct -9.01% Disposed 10.6% (price as of 2026-10-02)
March 31, 2014 CBU S 8,288 $38.98 $323,066 39,287 Direct -17.42% Disposed 55.7% (price as of 2026-10-02)

Showing latest 100 of 220 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
April 29, 2026 CBU Phantom Stock (Deferred Stock Units) Common Stock (9) · · 9 Disposed
March 19, 2026 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,254) · · 1,254 Disposed
March 17, 2026 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,220) · · 1,220 Acquired
Feb. 3, 2026 CBU Stock Option Common Stock (4,000) $23.04 Dec. 31, 2026 4,000 Disposed
April 15, 2025 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,181) · · 1,181 Disposed
March 18, 2025 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,225) · · 1,225 Acquired
Jan. 13, 2025 CBU Phantom Stock (Deferred Compensation) Common Stock · · 28 Disposed
Jan. 2, 2025 CBU Phantom Stock (Deferred Compensation) Common Stock · · 3,663 Disposed
April 12, 2024 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,464) · · 1,464 Disposed
March 19, 2024 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,395) · · 1,395 Acquired
Jan. 2, 2024 CBU Phantom Stock (Deferred Compensation) Common Stock (3,501) · · 3,501 Disposed
March 15, 2023 CBU Phantom Stock (Deferred Stock Units) Common Stock (662) · · 662 Disposed
March 14, 2023 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,154) · · 1,154 Acquired
Jan. 3, 2023 CBU Phantom Stock (Deferred Compensation) Common Stock (3,366) · · 3,366 Disposed
April 15, 2022 CBU Phantom Stock (Deferred Stock Units) Common Stock (582) · · 582 Disposed
March 15, 2022 CBU Phantom Stock (Deferred Stock Units) Common Stock (644) · · 644 Acquired
Jan. 3, 2022 CBU Phantom Stock (Deferred Compensation) Common Stock (3,276) · · 3,276 Disposed
Oct. 28, 2021 CBU Phantom Stock (Deferred Stock Units) Common Stock (180) · · 180 Disposed
March 17, 2021 CBU Phantom Stock (Deferred Stock Units) Common Stock (681) · · 681 Disposed
March 16, 2021 CBU Phantom Stock (Deferred Stock Units) Common Stock (569) · · 569 Acquired
Jan. 4, 2021 CBU Phantom Stock (Deferred Compensation) Common Stock (3,196) · · 3,196 Disposed
Oct. 28, 2020 CBU Phantom Stock (Deferred Stock Units) Common Stock (172) · · 172 Acquired
April 15, 2020 CBU Phantom Stock (Deferred Stock Units) Common Stock (590) · · 590 Disposed
March 17, 2020 CBU Phantom Stock (Deferred Stock Units) Common Stock (667) · · 667 Acquired
Jan. 1, 2020 CBU Phantom Stock (Deferred Compensation) Common Stock (3,110) · · 3,110 Disposed
Dec. 2, 2019 CBU Stock Option Common Stock (3,631) $37.77 March 19, 2024 3,631 Disposed
March 20, 2019 CBU Phantom Stock (Deferred Stock Units) Common Stock (576) · · 576 Acquired
March 18, 2019 CBU Phantom Stock (Deferred Stock Units) Common Stock · · 625 Disposed
Jan. 1, 2019 CBU Phantom Stock (Deferred Compensation) Common Stock (3,032) · · 3,032 Disposed
March 20, 2018 CBU Phantom Stock (Deferred Stock Units) Common Stock (611) · · 611 Acquired
March 20, 2018 CBU Phantom Stock (Deferred Compensation) Common Stock (563) · · 563 Disposed
Jan. 1, 2018 CBU Phantom Stock (Deferred Compensation) Common Stock (2,953) · · 2,953 Disposed
April 15, 2017 CBU Phantom Stock (Deferred Stock Units) Common Stock (1,770) · · 1,770 Disposed
March 15, 2017 CBU Phantom Stock (Deferred Stock Units) Common Stock (553) · · 553 Acquired
Jan. 1, 2017 CBU Phantom Stock (Deferred Compensation) Common Stock (2,884) · · 2,884 Disposed
Nov. 21, 2016 CBU Stock Option Common Stock (4,631) $29.79 March 19, 2023 4,631 Disposed
Aug. 30, 2016 CBU Stock Option Common Stock (4,566) $28.78 March 21, 2022 4,566 Disposed
Aug. 30, 2016 CBU Stock Option Common Stock (3,850) $27.36 Jan. 19, 2021 3,850 Disposed
March 16, 2016 CBU Phantom Stock (Deferred Stock Units) Common Stock (877) · · 877 Acquired
Jan. 1, 2016 CBU Phantom Stock (Deferred Compensation) Common Stock (2,795) · · 2,795 Disposed
Jan. 1, 2016 CBU Phantom Stock (Deferred Compensation) Common Stock (2,880) · · 2,880 Disposed
March 18, 2015 CBU Phantom Stock (Deferred Stock Units) Common Stock (850) · · 850 Acquired
Dec. 19, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (197) · · 197 Acquired
Nov. 25, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (33) · · 33 Acquired
Oct. 23, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (135) · · 135 Acquired
Sept. 24, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (291) · · 291 Acquired
Aug. 27, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (70) · · 70 Acquired
July 17, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (101) · · 101 Acquired
June 25, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (207) · · 207 Acquired
May 15, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (99) · · 99 Acquired
March 31, 2014 CBU Stock Option Common Stock (3,817) $22.94 Jan. 17, 2017 3,817 Disposed
March 31, 2014 CBU Stock Option Common Stock (4,471) $19.48 Jan. 20, 2020 4,471 Disposed
March 20, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (255) · · 255 Acquired
March 19, 2014 CBU Stock Option Common Stock (3,631) $37.77 March 19, 2024 3,631 Acquired
Jan. 22, 2014 CBU Phantom Stock (Deferred Compensation) Common Stock (123) · · 123 Acquired
Dec. 19, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (318) · · 318 Acquired
Oct. 25, 2013 CBU Stock Option Common Stock (3,298) $23.74 Jan. 18, 2016 3,298 Disposed
Oct. 25, 2013 CBU Stock Option Common Stock (3,604) $24.84 Jan. 19, 2015 3,604 Disposed
Oct. 18, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (97) · · 97 Acquired
Sept. 25, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (326) · · 326 Acquired
Aug. 29, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (37) · · 37 Acquired
July 18, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (106) · · 106 Acquired
June 21, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (321) · · 321 Acquired
May 13, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (120) · · 120 Acquired
March 20, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (159) · · 159 Acquired
March 19, 2013 CBU Stock Option Common Stock (4,631) $29.79 March 19, 2023 4,631 Acquired
Jan. 17, 2013 CBU Phantom Stock (Deferred Compensation) Common Stock (265) · · 265 Acquired
Dec. 19, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (365) · · 365 Acquired
Nov. 26, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (46) · · 46 Acquired
Oct. 18, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (128) · · 128 Acquired
Sept. 27, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (393) · · 393 Acquired
Aug. 30, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (124) · · 124 Acquired
Aug. 28, 2012 CBU Stock Option Common Stock (4,643) $18.08 Jan. 29, 2019 4,643 Disposed
Aug. 27, 2012 CBU Stock Option Common Stock (179) $18.08 Jan. 29, 2019 179 Disposed
Aug. 27, 2012 CBU Stock Option Common Stock (5,457) $18.09 Jan. 16, 2018 5,457 Disposed
July 20, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (130) · · 130 Acquired
June 21, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (338) · · 338 Acquired
May 18, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (133) · · 133 Acquired
March 21, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (426) · · 426 Acquired
March 21, 2012 CBU Stock Option Common Stock (4,566) $28.78 March 21, 2022 4,566 Acquired
Jan. 24, 2012 CBU Phantom Stock (Deferred Compensation) Common Stock (124) · · 124 Acquired
Dec. 23, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (438) · · 438 Acquired
Oct. 24, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (96) · · 96 Acquired
Sept. 26, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (472) · · 472 Acquired
July 25, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (101) · · 101 Acquired
June 27, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (347) · · 347 Acquired
May 27, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (142) · · 142 Acquired
March 22, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (457) · · 457 Acquired
Jan. 19, 2011 CBU Phantom Stock (Deferred Compensation) Common Stock (91) · · 91 Acquired
Jan. 19, 2011 CBU Stock Option Common Stock (3,850) $27.36 Jan. 19, 2021 3,850 Acquired
Dec. 31, 2010 CBU Phantom Stock (Stock Balance Plan) Common Stock (86) · · 86 Acquired
Dec. 20, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (325) · · 325 Acquired
Oct. 25, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (108) · · 108 Acquired
Sept. 24, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (510) · · 510 Acquired
July 22, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (106) · · 106 Acquired
June 25, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (367) · · 367 Acquired
May 7, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (157) · · 157 Acquired
March 25, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (371) · · 371 Acquired
Feb. 17, 2010 CBU Phantom Stock (Deferred Compensation) Common Stock (60) · · 60 Acquired
Jan. 20, 2010 CBU Stock Option Common Stock (4,471) $19.48 Jan. 20, 2020 4,471 Acquired

Showing latest 100 of 140 transactions

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 8 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
July 8, 2004 CBU Common Stock [F1] 14,749 Direct
July 8, 2004 CBU Stock Option [F1]→ Common Stock (7,712) 7,712 Direct
July 8, 2004 CBU Stock Option→ Common Stock (4,497) 4,497 Direct
July 8, 2004 CBU Stock Option→ Common Stock (2,200) 2,200 Direct
Dec. 1, 2003 CBU Common Stock 14,749 Direct
Dec. 1, 2003 CBU Stock Option→ Common Stock (7,712) 7,712 Direct
Dec. 1, 2003 CBU Stock Option→ Common Stock (4,497) 4,497 Direct
Dec. 1, 2003 CBU Stock Option→ Common Stock (2,200) 2,200 Direct