Community Financial director proposes $155K stock sale

The proposed block carries an aggregate market value of $155,000, with October 22, 2026 listed as the approximate sale date.

Rhea-AI Filing Summary

Community Financial System, Inc. board director Sally Steele listed 2,500 shares of common stock for sale, with an aggregate market value of $155,000. Apex Clearing is named as broker, and October 22, 2026 is the approximate sale date. The shares are identified as acquired through a stock option exercise; the reported shares outstanding figure is 52,615,905.

Key Figures

Shares listed for sale: 2,500 shares Aggregate market value: $155,000 Shares outstanding: 52,615,905 shares

3 metrics

Shares listed for sale 2,500 shares Common stock

Aggregate market value $155,000 Shares listed for sale

Shares outstanding 52,615,905 shares Community Financial System, Inc.

Key Terms

Rule 144, Stock Option Exercise, Securities To Be Sold

3 terms

Rule 144 regulatory

"paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Stock Option Exercise financial

"Nature of acquisition: Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Securities To Be Sold regulatory

"144: Securities To Be Sold"

FAQ

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

How many CBU shares did Sally Steele list for sale?

Sally Steele listed 2,500 shares of common stock for sale, with an aggregate market value of $155,000. Apex Clearing is named as the broker, and October 22, 2026 is the approximate sale date.

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

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Available on EDGAR 10/22/2026 - 11:21 AM EDT Accepted by SEC EDGAR 10/22/2026 - 11:20 AM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001264816
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	COMMUNITY FINANCIAL SYSTEMS, INC.
SEC File Number	001-13695
Address of Issuer	333 BUTTERNUT DRIVE SYRACUSE NEW YORK 13214
Phone	(315) 445 315
Name of Person for Whose Account the Securities are To Be Sold	Sally Steele
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	BOARD OF DIRECTOR

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	APEX CLEARING 350 N ST. PAUL ST SUITE 300 DALLAS TX 75201	2500	155000	52615905	10/22/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	10/22/2026	Stock Option Exercise	COMMUNITY FINANCIAL SYSTEMS, INC.			2500	10/22/2026	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	10/22/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ SALLY STEELE
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)