SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

SUTARIS JOSEPH E

(Last)

(First)

(Middle)

5790 WIDEWATERS PARKWAY

(Street)

DEWITT

13214

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
05/21/2018

3. Issuer Name and Ticker or Trading Symbol
COMMUNITY BANK SYSTEM, INC. [ CBU ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP & Chief Financial Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	2,774	D
Common Stock	1,013.7966	I	By 401(k) Plan⁽¹⁾

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Option	⁽²⁾	03/19/2023	Common Stock	3,026	$29.79	D
Stock Option	⁽³⁾	03/18/2025	Common Stock	2,388	$35.36	D
Stock Option	⁽⁴⁾	03/19/2024	Common Stock	2,296	$37.77	D
Stock Option	⁽⁵⁾	03/16/2026	Common Stock	2,576	$38.02	D
Stock Option	⁽⁶⁾	03/20/2028	Common Stock	1,559	$55.92	D
Stock Option	⁽⁷⁾	03/15/2027	Common Stock	1,503	$57.12	D

Explanation of Responses:

1. The number of shares reported herein acquired pursuant to Community Bank System, Inc.'s 401(k) Plan and are based on a current plan statement.

2. The option vested ratably on March 19, 2014, 2015, 2016, 2017 and 2018.

3. The option vests ratably on March 18, 2016, 2017, 2018, 2019 and 2020.

4. The option vests ratably on March 19, 2015, 2016, 2017, 2018 and 2019.

5. The option vests ratably on March 16, 2017, 2018, 2019, 2020 and 2021.

6. The option vests ratably on March 20, 2019, 2020, 2021, 2022 and 2023.

7. The option vests ratably on March 15, 2018, 2019, 2020, 2021 and 2022.

	/s/ Marguerite K. Geiss, pursuant to a Confiming Statement executed by Joseph E. Sutaris	05/31/2018
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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