Joseph Jonathon Lemchak

Insider

First SEC filing: Feb. 22, 2021 · Latest: Feb. 22, 2021

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 11 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

11 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 15, 2022	CBU	A	1,268	—	—	1,268 Direct	—	Acquired	(price as of 2026-08-20)
March 15, 2022	CBU	A	315	—	—	2,068 Direct	+17.97%	Acquired	(price as of 2026-08-20)
March 4, 2022	CBU	F	226	$72.94	$16,484	1,753 Direct	-11.42%	Disposed	-14.2% (price as of 2026-08-20)
March 16, 2021	CBU	A	1,807	—	—	1,807 Direct	—	Acquired	(price as of 2026-08-20)
March 16, 2021	CBU	A	418	—	—	1,979 Direct	+26.78%	Acquired	(price as of 2026-08-20)
March 5, 2021	CBU	F	228	$71.19	$16,231	1,561 Direct	-12.74%	Disposed	-12.1% (price as of 2026-08-20)
Dec. 14, 2005	CBU	S	1,000	$23.98	$23,980	1,227 Direct	-44.90%	Disposed	160.9% (price as of 2026-08-20)
Dec. 14, 2005	CBU	S	1,127	$23.99	$27,037	100 Direct	-91.85%	Disposed	160.8% (price as of 2026-08-20)
Dec. 9, 2005	CBU	S	1,000	$23.99	$23,990	2,227 Direct	-30.99%	Disposed	160.8% (price as of 2026-08-20)
June 16, 2005	CBU	M	1,248	$11.56	$14,427	1,648 Direct	+312.00%	Acquired	441.2% (price as of 2026-08-20)
June 16, 2005	CBU	M	1,579	$12.38	$19,548	3,227 Direct	+95.81%	Acquired	405.3% (price as of 2026-08-20)
June 16, 2005	CBU	M	1,248	$11.56	$14,427	0 Direct	-100.00%	Disposed	441.2% (price as of 2026-08-20)
June 16, 2005	CBU	M	1,579	$12.38	$19,548	1,579 Direct	-50.00%	Disposed	405.3% (price as of 2026-08-20)
Jan. 19, 2005	CBU	A	6,521	$24.84	$161,982	6,521 Direct	—	Acquired	151.9% (price as of 2026-08-20)

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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
March 15, 2022	CBU	Stock Option	Common Stock (1,268)	$72.51	March 15, 2032	1,268	Acquired
March 16, 2021	CBU	Stock Option	Common Stock (1,807)	$79.66	March 16, 2031	1,807	Acquired
June 16, 2005	CBU	Stock Option	Common Stock (1,248)	$11.56	Jan. 1, 2010	1,248	Disposed
June 16, 2005	CBU	Stock Option	Common Stock (1,579)	$12.38	Jan. 1, 2011	1,579	Disposed
Jan. 19, 2005	CBU	Stock Option	Common Stock (6,521)	$24.84	Jan. 19, 2015	6,521	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
Feb. 22, 2021	CBU	Common Stock	1,789	Direct
Feb. 22, 2021	CBU	Common Stock	3,164	Indirect
Feb. 22, 2021	CBU	Stock Option→ Common Stock (793)	793	Direct
Feb. 22, 2021	CBU	Stock Option→ Common Stock (925)	925	Direct
Feb. 22, 2021	CBU	Stock Option→ Common Stock (1,812)	1,812	Direct
Feb. 22, 2021	CBU	Stock Option→ Common Stock (3,007)	3,007	Direct
Feb. 22, 2021	CBU	Stock Option→ Common Stock (1,456)	1,456	Direct
Oct. 29, 2004	CBU	Common Stock	400	Direct
Oct. 29, 2004	CBU	Common Stock	—	Indirect
Oct. 29, 2004	CBU	Stock Option→ Common Stock (1,248)	1,248	Direct
Oct. 29, 2004	CBU	Stock Option→ Common Stock (3,158)	3,158	Direct
Oct. 29, 2004	CBU	Stock Option→ Common Stock (5,314)	5,314	Direct
Oct. 29, 2004	CBU	Stock Option→ Common Stock (9,348)	9,348	Direct
Oct. 29, 2004	CBU	Stock Option→ Common Stock (8,232)	8,232	Direct