STOCK TITAN

Community Financial director granted stock units

A CBU director reported a new equity-based deferred stock award, increasing her reported deferred and phantom stock unit holdings tied to common stock.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

COMMUNITY FINANCIAL SYSTEM, INC. (symbol: CBU) is the issuer of record for a Form 4 filing submitted to the SEC. Sullivan Michele reported acquisition or exercise transactions in this Form 4 filing.

COMMUNITY FINANCIAL SYSTEM, INC. (CBU) director Michele Sullivan reported receiving a grant of 396.288 units of Deferred Stock (Deferred Compensation) on September 17, 2026, each economically equivalent to one share of common stock, at a reference value of $62.77 per unit. Following this award, she holds 4,381.1476 deferred stock units tied to the company’s common stock and a separate position of 4,001.0493 phantom stock units under the company’s long-term and director deferred compensation plans. No Rule 10b5-1 trading plan is reported for these awards.

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Insider Sullivan Michele
Role Director
Type Security Shares Price Value
Grant/Award Deferred Stock (Deferred Compensation) F3, F4 396.288 $62.77 $25K
holding Phantom Stock (Deferred Stock Units) F1, F2 -- -- --
Holdings After Transaction: Deferred Stock (Deferred Compensation) — 4,381.1476 contracts (Direct); Phantom Stock (Deferred Stock Units) — 4,001.0493 contracts (Direct)
Footnotes (4)
  1. F1. The reporting person has received deferred stock units under the Community Financial System, Inc. 2022 Long-Term Incentive Plan, as amended (the "LTIP"). Each phantom stock unit which represents a deferred stock unit is the economic equivalent of one share of Community Financial System, Inc. common stock and will be settled in common stock at a predetermined date.
  2. F2. Includes 27.9627 units of phantom stock acquired as dividend equivalents on July 10, 2026 under the LTIP.
  3. F3. Each unit of phantom stock is the economic equivalent of one share of Community Financial System, Inc. common stock. The units of phantom stock relating to the Deferred Compensation Plan for Directors (the "DCP for Directors"), will be settled in Community Financial System, Inc. common stock at future dates selected by the reporting person.
  4. F4. Includes 25.0107 units of phantom stock acquired on July 10, 2026 as dividend equivalents under the DCP for Directors.
Deferred stock units granted 396.288 units Deferred Stock (Deferred Compensation) grant on September 17, 2026
Reference value per deferred stock unit $62.77 per unit Value associated with the September 17, 2026 deferred stock grant
Deferred stock units after transaction 4,381.1476 units Deferred Stock (Deferred Compensation) units outstanding after the grant
Phantom stock units outstanding 4,001.0493 units Phantom Stock (Deferred Stock Units) economically equivalent to CBU common stock
Dividend-equivalent phantom units under LTIP 27.9627 units Acquired as dividend equivalents on July 10, 2026 under the LTIP
Dividend-equivalent phantom units under DCP for Directors 25.0107 units Acquired as dividend equivalents on July 10, 2026 under the DCP for Directors
Deferred Stock (Deferred Compensation) financial
"The reporting person has received deferred stock units under the Community Financial System, Inc. 2022 Long-Term Incentive Plan"
Phantom Stock (Deferred Stock Units) financial
"Each phantom stock unit which represents a deferred stock unit is the economic equivalent"
economic equivalent financial
"Each phantom stock unit which represents a deferred stock unit is the economic equivalent of one share"
Long-Term Incentive Plan financial
"under the Community Financial System, Inc. 2022 Long-Term Incentive Plan, as amended (the "LTIP")"
A long-term incentive plan is a company program that pays executives or employees with stock, options, or cash tied to multi-year performance goals, where the rewards become theirs only after meeting conditions over time. Think of it as a delayed bonus or retirement-style reward that aligns employees’ interests with shareholders by encouraging them to boost long-term value; investors watch these plans because they affect pay costs, share dilution and management incentives.
Deferred Compensation Plan for Directors financial
"The units of phantom stock relating to the Deferred Compensation Plan for Directors (the "DCP for Directors")"
A deferred compensation plan for directors is an arrangement that lets board members postpone receiving part of their pay until a later date—often retirement or a set future time—so the money can grow or be paid under specified conditions. Think of it like directing a portion of your paycheck into a locked savings account that pays out later; investors care because it creates future cash or stock obligations, signals how the company motivates and retains leadership, and can affect shareholder value through timing of payouts or potential dilution.

FAQ

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

What insider transaction did CBU director Michele Sullivan report on this Form 4?

She reported a grant of 396.288 Deferred Stock (Deferred Compensation) units on September 17, 2026, each economically equivalent to one share of COMMUNITY FINANCIAL SYSTEM, INC. common stock, as part of the company’s compensation and deferral arrangements for directors.

How many deferred stock units tied to CBU common stock does Michele Sullivan hold after the transaction?

After the September 17, 2026 grant, Michele Sullivan holds 4,381.1476 units of Deferred Stock (Deferred Compensation), each economically equivalent to one share of COMMUNITY FINANCIAL SYSTEM, INC. common stock and to be settled in common stock at future dates.

Does COMMUNITY FINANCIAL SYSTEM, INC. (CBU) note any Rule 10b5-1 trading plan for this Form 4 filing?

No. The filing’s Rule 10b5-1 checkbox is not marked as affirmative, so no Rule 10b5-1 trading plan is reported in connection with the transactions and holdings disclosed on this Form 4.

What is the economic relationship between CBU phantom stock units and common stock?

Each phantom stock unit is described as the economic equivalent of one share of COMMUNITY FINANCIAL SYSTEM, INC. common stock and will be settled in common stock at future dates selected or predetermined under the applicable deferred compensation plans.

Were any dividend-equivalent phantom stock units reported for CBU in this Form 4?

Yes. The filing states that holdings include 27.9627 phantom stock units acquired as dividend equivalents under the long-term incentive plan and 25.0107 phantom stock units acquired as dividend equivalents under the Deferred Compensation Plan for Directors, both on July 10, 2026.

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

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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*
Sullivan Michele

(Last)(First)(Middle)
C/O COMMUNITY FINANCIAL SYSTEM, INC.
333 BUTTERNUT DRIVE

(Street)
SYRACUSE NEW YORK 13214

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
COMMUNITY FINANCIAL SYSTEM, INC. [ CBU ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Phantom Stock (Deferred Stock Units)(1) (1) (1)Common Stock4,001.04934,001.0493(2)D
Deferred Stock (Deferred Compensation)(3)09/17/2026A396.288 (3) (3)Common Stock396.288$62.774,381.1476(4)D
Explanation of Responses:
1. The reporting person has received deferred stock units under the Community Financial System, Inc. 2022 Long-Term Incentive Plan, as amended (the "LTIP"). Each phantom stock unit which represents a deferred stock unit is the economic equivalent of one share of Community Financial System, Inc. common stock and will be settled in common stock at a predetermined date.
2. Includes 27.9627 units of phantom stock acquired as dividend equivalents on July 10, 2026 under the LTIP.
3. Each unit of phantom stock is the economic equivalent of one share of Community Financial System, Inc. common stock. The units of phantom stock relating to the Deferred Compensation Plan for Directors (the "DCP for Directors"), will be settled in Community Financial System, Inc. common stock at future dates selected by the reporting person.
4. Includes 25.0107 units of phantom stock acquired on July 10, 2026 as dividend equivalents under the DCP for Directors.
/s/ Danielle M. Cima, pursuant to Confirming Statement executed by Michele Sullivan09/18/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

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