SEC FORM 4

SEC FORM 4SEC 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

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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^*

Michie James Arvo

(Last)

(First)

(Middle)

800 PHILADELPHIA STREET

(Street)

INDIANA

PENNSYLVANIA

15701

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
S&T BANCORP INC [ STBA ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Executive Vice President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/01/2026		M⁽¹⁾		721	A	$42.28	6,877	D
Common Stock	04/01/2026		F⁽²⁾		316	D	$42.28	6,561	D
Common Stock	04/01/2026		M⁽¹⁾		750	A	$42.28	7,311	D
Common Stock	04/01/2026		F⁽²⁾		329	D	$42.28	6,982	D
Common Stock	04/01/2026		M⁽¹⁾		640	A	$42.28	7,622	D
Common Stock	04/01/2026		F⁽²⁾		280	D	$42.28	7,342	D
Common Stock	04/01/2026		M⁽¹⁾		3,005	A	$42.28	10,347	D
Common Stock	04/01/2026		F⁽²⁾		1,315	D	$42.28	9,032	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽³⁾	04/01/2026		M⁽¹⁾			721	⁽⁴⁾	⁽⁴⁾	Common Stock	721	$0	0	D
Restricted Stock Units	⁽³⁾	04/01/2026		M⁽¹⁾			750	⁽⁵⁾	⁽⁵⁾	Common Stock	750	$0	773	D
Restricted Stock Units	⁽³⁾	04/01/2026		M⁽¹⁾			640	⁽⁶⁾	⁽⁶⁾	Common Stock	640	$0	1,302	D
Restricted Stock Units	⁽⁷⁾	04/01/2026		A		3,005		⁽⁸⁾	⁽⁸⁾	Common Stock	3,005	$0	3,005	D
Restricted Stock Units	⁽⁷⁾	04/01/2026		M⁽¹⁾			3,005	⁽⁸⁾	⁽⁸⁾	Common Stock	3,005	$0	0	D
Restricted Stock Units	⁽³⁾	04/01/2026		A		1,833		⁽⁹⁾	⁽⁹⁾	Common Stock	1,833	$0	1,833	D

Explanation of Responses:

1. Upon vest, automatically converts into equal number of shares of common stock.

2. Shares of common stock withheld for payment of tax liability for vested and converted restricted stock units.

3. Each restricted stock unit represents a contingent right to receive one share of S&T Bancorp, Inc. common stock.

4. The restricted stock units vest in three equal annual installments beginning April 1, 2024. Vested shares will be delivered to the reporting person upon vesting.

5. The restricted stock units vest in three equal annual installments beginning April 1, 2025. Vested shares will be delivered to the reporting person upon vesting.

6. The restricted stock units vest in three equal annual installments beginning April 1, 2026. Vested shares will be delivered to the reporting person upon vesting.

7. Acquired upon achievement of certain performance criteria pursuant to the performance-based restricted stock units granted April 1, 2023, under the Issuer's 2023 Long Term Incentive Plan. The performance period for the restricted stock units was January 1, 2023, until December 31, 2025, with achievement of the applicable performance criteria subject to determination by the Issuer's Compensation Committee. This determination was obtained on March 24, 2026.

8. The restricted performance units awarded on April 1, 2023 vesting on April 1, 2026. Vested shares will be delivered to the reporting person upon vesting.

9. The restricted stock units vest in three equal annual installments beginning April 1, 2027. Vested shares will be delivered to the reporting person upon vesting.

Remarks:

	/s/ Jackie Kennane, attorney-in-fact for James Arvo Michie	04/03/2026
	** 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)

SEC Form 4 filed by Michie James Arvo