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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
723188	Community Bank System Inc	CBU	National Commercial Banks (6021)	161213679

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1265443	D Brian Donahue	229 Carolina Street Olean NY 14760	Chief Banking Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2011-11-03	6,954	$13.10	29,995	No	4	M	Direct
Common Stock	Disposition	2011-11-03	6,954	$25.75	23,041	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option	Disposition	2011-11-03	6,954	$0.00	6,954	$13.10

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2003-10-01	2012-01-01	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	5,947	Indirect	By 401(k) Plan

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.75 to $25.89, inclusive. The reporting person undertakes to provide Community Bank System, Inc., any security holder of Community Bank System, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
The number of shares reported herein is based on a current plan statement.