FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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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(Print or Type Responses)

1. Name and Address of Reporting Person * VIENEY AMY 2. Issuer Name and Ticker or Trading Symbol PEOPLES FINANCIAL SERVICES CORP. [PFIS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) EVP/CHIEF HUMAN RESOURCES OFF (Last) (First) (Middle) C/O PEOPLES SECURITY BANK & TRUST CO., 30 E D PREATE DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 06/26/2026 (Street) MOOSIC, PA 18507 4. If Amendment, Date 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 (City) (State) (Zip) 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 621.472(1) D

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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 Underlying Securities (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 of Derivative Security: 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

Restricted Stock Units

(2)

(3)

(3)

Common Stock

95

182(4)

D

Restricted Stock Units

(2)

06/26/2026

A

610

(5)

(5)

Common Stock

610

$ 0

610

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
VIENEY AMY C/O PEOPLES SECURITY BANK & TRUST CO. 30 E D PREATE DRIVE MOOSIC, PA 18507			EVP/CHIEF HUMAN RESOURCES OFF

Signatures

/s/ James M. Bone, Jr., CPA Attorney in Fact for Amy Vieney		06/30/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	This amount includes 53 shares of restricted stock and 568.4720 shares solely owned by Ms. Vieney which includes 6.8070 shares acquired on 3/13/2026 under the Issuer's Dividend Reinvestment and Stock Purchase Plan (DRP) and 5.6070 DRP shares acquired on 6/15/2026.
(2)	Each restricted stock unit (RSU) represents a contingent right to receive one share of PFIS common stock.
(3)	On 3/28/2025, Ms. Vieney was granted 277 RSUs vesting in three annual installments beginning 3/11/2026.
(4)	95 RSUs vested on 3/11/2026 leaving 92 RSUs to vest on 3/11/2027 and 90 RSUs to vest on 3/11/2028.
(5)	On 6/26/2026, Ms. Vieney was granted 610 RSUs vesting in three annual installments beginning 6/26/2027.

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