Mark E. Tryniski - Mar 8, 2023 Form 4 Insider Report for COMMUNITY BANK SYSTEM, INC. (CBU)

Role: President & CEO, Director
Signature: Danielle M. Cima, pursuant to a Confirming Statement executed by Mark E. Tryniski
Stock symbol: CBU
Transactions as of: Mar 8, 2023
Transactions value $: -$104,029
Form type: 4
Date filed: 3/9/2023, 12:25 PM
Previous filing: Jun 3, 2022
Next filing: Mar 15, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CBU	Common Stock	Tax liability	-$104K	-1.7K	-5.42%	$61.05	29.7K	Mar 8, 2023	Direct	F1
holding	CBU	Common Stock						20.9K	Mar 8, 2023	By 401(k) Plan	F2
holding	CBU	Common Stock						27.3K	Mar 8, 2023	By Mark Tryniski Family Trust
holding	CBU	Common Stock						98.5K	Mar 8, 2023	By Phyllis Tryniski Family Trust

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Payment of tax liability associated with the vesting of restricted stock awards.
F2	The number of shares reported herein were acquired pursuant to Community Bank System, Inc.'s 401(K) Plan and are based on a current plan statement.