PFIS EVP reports RSU vesting, tax withholding

PEOPLES FINANCIAL SERVICES CORP. executive Stephanie A. Westington reported routine equity compensation activity.

Rhea-AI Filing Summary

PEOPLES FINANCIAL SERVICES CORP. executive Stephanie A. Westington reported routine equity compensation activity. She exercised 90 restricted stock units, which converted into the same number of common shares, and 47 common shares were disposed of to satisfy tax obligations. After these transactions she directly holds 3,305 common shares, including 420 shares of time-based restricted common stock and 2,885 other common shares, and 173 restricted stock units remain outstanding, scheduled to vest in 2027 and 2028.

Insider Trade Summary

90 shares exercised/converted

Exercise 2 txns

Insider Westington Stephanie A.

Role EVP/CHIEF ACCOUNTING OFF

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	47	$56.35	$3K
Exercise	Restricted Stock Unit	90	$0.00	$0.00

Holdings After Transaction: Restricted Stock Unit — 173 contracts (Direct); Common Stock — 3,305 shares (Direct)

Footnotes (4)

1. F1. This amount includes 420 shares of time-based restricted common stock owned by Ms. Westington and 2,885 shares owned by Ms. Westington.
2. F2. Restricted stock units (RSUs) convert into common stock on a one-for-one basis.
3. F3. On 3/28/2025, Ms. Westington was granted 263 RSUs vesting in three annual installments beginning 3/11/2026.
4. F4. 90 RSUs vested on 3/11/2026 leaving 87 RSUs to vest on 3/11/2027 and 86 RSUs to vest on 3/11/2028.

Key Figures

RSUs exercised: 90 restricted stock units Shares for tax withholding: 47 common shares at $56.35 Common shares held: 3,305 common shares +4 more

7 metrics

RSUs exercised 90 restricted stock units Converted into 90 common shares

Shares for tax withholding 47 common shares at $56.35 Disposed to satisfy tax liability

Common shares held 3,305 common shares Direct holdings after transactions

Restricted common stock held 420 common shares Time-based restricted common stock included in holdings

Other common shares held 2,885 common shares Non-restricted portion of direct holdings

Outstanding RSUs 173 restricted stock units Remain to vest in 2027 and 2028

Original RSU grant 263 restricted stock units Granted on March 28, 2025

Key Terms

Restricted Stock Unit, time-based restricted common stock, tax-withholding disposition, Exercise or conversion of derivative security, +1 more

5 terms

Restricted Stock Unit financial

"Restricted stock units (RSUs) convert into common stock on a one-for-one basis."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

time-based restricted common stock financial

"This amount includes 420 shares of time-based restricted common stock owned by Ms. Westington"

tax-withholding disposition financial

"transaction_action: tax-withholding disposition"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

vested financial

"90 RSUs vested on 3/11/2026 leaving 87 RSUs to vest on 3/11/2027"

FAQ

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

What insider transactions did PFIS executive Stephanie Westington report?

Stephanie A. Westington reported routine equity compensation activity, including the vesting of 90 restricted stock units into common stock and a disposition of 47 common shares to cover tax obligations. These transactions did not involve open‑market buying or selling of PFIS stock.

How many PFIS shares does Stephanie Westington hold after this Form 4?

After the reported transactions, Stephanie A. Westington directly holds 3,305 PFIS common shares. This total includes 420 shares of time-based restricted common stock and 2,885 other common shares, reflecting her updated direct ownership position following the RSU vesting and tax withholding.

What happened to Stephanie Westington’s PFIS restricted stock units?

Ninety restricted stock units vested and converted into 90 PFIS common shares on a one-for-one basis. Following this vesting, 173 restricted stock units remain outstanding, scheduled to vest in installments in 2027 and 2028 according to the previously granted award terms.

Why were 47 PFIS shares disposed of in Stephanie Westington’s Form 4?

The 47 PFIS common shares were disposed of as a tax-withholding transaction related to the equity award. This payment of tax liability by delivering shares is a standard mechanism and is not an open-market sale reflecting a discretionary trading decision.

What RSU grant schedule does Stephanie Westington have with PFIS?

She was granted 263 restricted stock units, vesting in three annual installments beginning March 11, 2026. Ninety units have vested, leaving 87 RSUs scheduled to vest on March 11, 2027 and 86 RSUs scheduled to vest on March 11, 2028, subject to the award terms.

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

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Accepted by SEC EDGAR 05/19/2026 - 02:58 PM EDT 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^*

Westington Stephanie A.

(Last) (First) (Middle)

C/O PEOPLES SECURITY BANK & TRUST CO.

30 E D PREATE DRIVE

(Street)

MOOSIC PENNSYLVANIA 18507

(City) (State) (Zip)

UNITED STATES

(Country)

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 ACCOUNTING OFF

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/15/2026		F		47	D	$56.35	3,305(1)	D

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
Restricted Stock Unit	(2)	03/11/2026		M			90	(3)	(3)	Common Stock	90	$0	173(4)	D

Explanation of Responses:

1. This amount includes 420 shares of time-based restricted common stock owned by Ms. Westington and 2,885 shares owned by Ms. Westington.

2. Restricted stock units (RSUs) convert into common stock on a one-for-one basis.

3. On 3/28/2025, Ms. Westington was granted 263 RSUs vesting in three annual installments beginning 3/11/2026.

4. 90 RSUs vested on 3/11/2026 leaving 87 RSUs to vest on 3/11/2027 and 86 RSUs to vest on 3/11/2028.

	/s/ James M. Bone, Jr., CPA Attorney in Fact for Stephanie A. Westington, CPA	05/19/2026
	** 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.
* Form 4: SEC 1474 (03-26)