Community Financial EVP reports tax share withholding

Rhea-AI Filing Summary

Community Financial System, Inc. executive files tax‑related share disposition

EVP and General Counsel Michael N. Abdo reported a tax-withholding disposition of 485 shares of Community Financial System common stock at $60.55 per share in connection with the vesting of restricted stock awards. After this, he directly holds 6,769 shares and indirectly holds 2,731.4068 shares through the company’s 401(k) plan, based on a current plan statement.

Insider Trade Summary

Exercise Price or Tax Liability: 485 shares

Exercise Price or Tax Liability 2 txns

Insider Abdo Michael N

Role EVP and General Counsel

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	485	$60.55	$29K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 6,769 shares (Direct); Common Stock — 2,731.4068 shares (Indirect, By 401(K))

Footnotes (2)

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

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Community Financial System (CBU) report for Michael N. Abdo?

Community Financial System EVP and General Counsel Michael N. Abdo reported a tax-withholding disposition of 485 common shares. The transaction relates to paying taxes on vesting restricted stock awards, rather than an open-market sale, under a Form 4 insider filing.

What does the Form 4 tax-withholding transaction mean for CBU shares?

The Form 4 shows 485 Community Financial System shares used to cover tax liability on vesting restricted stock awards. This code F transaction is a payment of taxes with shares, not a discretionary market trade, and is common when equity awards vest.

How many CBU shares does Michael N. Abdo hold after the reported transaction?

After the reported Form 4 transaction, Michael N. Abdo directly holds 6,769 Community Financial System common shares. He also indirectly holds 2,731.4068 additional shares through the company’s 401(k) plan, based on a current plan statement noted in the filing footnotes.

What is the price per share for the CBU tax-withholding disposition?

The tax-withholding disposition of Community Financial System common stock used a price of $60.55 per share. This price applies to the 485 shares delivered to satisfy tax liability associated with the vesting of restricted stock awards, as disclosed in the Form 4 filing.

How are Michael N. Abdo’s indirect CBU shares held according to the Form 4?

Michael N. Abdo’s indirect Community Financial System holdings are held through the company’s 401(k) plan. The filing reports 2,731.4068 indirectly owned shares, and a footnote explains these were acquired under the 401(k) plan and are based on a current plan statement.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/04/2026 - 11:55 AM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Abdo Michael N

(Last) (First) (Middle)

C/O COMMUNITY FINANCIAL SYSTEM, INC.

333 BUTTERNUT DRIVE

(Street)

SYRACUSE NY 13214

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
COMMUNITY FINANCIAL SYSTEM, INC. [ CBU ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
03/02/2026

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/02/2026		F(1)		485	D	$60.55	6,769	D
Common Stock								2,731.4068	I	By 401(K)(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Payment of tax liability associated with vesting of restricted stock awards.

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

	/s/ Danielle M. Cima, pursuant to a Confirming Statement executed by Michael N. Abdo	03/04/2026
	** 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 4 (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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.