S&T Bancorp (STBA) Insider: Smydo RSU Vesting Converts 2,550 Shares

Rhea-AI Filing Summary

Rachel Lynn Smydo, Executive Vice President of S&T Bancorp, Inc. (STBA), reported equity activity on 09/23/2025. A special award of 2,550 restricted stock units vested and upon vesting automatically converted into 2,550 shares of common stock at a reported price reference of $38.775. To satisfy tax withholding on vested RSUs, 733 shares were withheld, resulting in a net increase then final reported beneficial ownership of 8,398 shares following the transactions. The filing lists outstanding restricted stock units that vest in staggered annual installments: 1,420, 1,819, and 664 units for future vesting schedules. The Form 4 was signed by an attorney-in-fact on behalf of Ms. Smydo on 09/25/2025.

Positive

• 2,550 restricted stock units vested and converted into common shares, reflecting executed compensation grants
• Detailed vesting schedules disclosed for outstanding RSU tranches (1,420; 1,819; 664), providing clarity on future dilution timing
• Correction noted clarifying the award is an officer award rather than a director award

Negative

• 733 shares were withheld to satisfy tax liabilities on vested RSUs, reducing net shares delivered to the reporting person
• Post-transaction beneficial ownership decreased to 8,398 shares after the withholding event (as reported)

Insights

Financial Analyst

TL;DR: Routine executive RSU vesting converted to shares, with tax-withholding; modest change in reported beneficial ownership.

The filing documents the vesting and automatic conversion of a 2,550-RSU special grant into common shares on 09/23/2025 and the withholding of 733 shares to cover taxes, yielding a reported post-transaction ownership of 8,398 shares. This is a standard compensation-related transaction rather than a market sale or outside acquisition. The report also discloses multiple outstanding RSU tranches (1,420; 1,819; 664) that will vest in future annual installments, indicating continued equity-linked compensation for the executive.

Corporate Governance Expert

TL;DR: Disclosure reflects routine equity compensation mechanics and internal tax withholding; no governance red flags shown.

The Form 4 clarifies that one award was mischaracterized previously and is confirmed as an officer award; vesting schedules and conversion mechanics are explicitly described. The signature by an attorney-in-fact is recorded. All entries are transaction-level disclosures required under Section 16 and align with normal executive compensation processes disclosed by the issuer.

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

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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).

1. Name and Address of Reporting Person^*

Smydo Rachel Lynn

(Last) (First) (Middle)

800 PHILADELPHIA STREET

(Street)

INDIANA PA 15701

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/23/2025

4. If Amendment, Date of 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

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	09/23/2025		M(1)		2,550	A	$38.775	9,131	D
Common Stock	09/23/2025		F(2)		733	D	$38.775	8,398	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 Units(3)	(4)							(5)	(5)	Common Stock	1,420		1,420	D
Restricted Stock Units	(4)							(6)	(6)	Common Stock	1,819		1,819	D
Restricted Stock Units	(4)							(7)	(7)	Common Stock	664		664	D
Restricted Stock Units	(4)	09/23/2025		M(1)			2,550	(8)	(8)	Common Stock	2,550	$0	0	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 RSU's.

3. Correction to the name of the award. It is not a Director's award, but officer award. All other aspects of the award, including date of award, number of shares, and vesting remain unchanged.

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

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. 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.

8. The Registrant awarded a special grant to the executive officer that will vest equally over the three successive anniversary dates of the grant date.

	/s/ Jackie Kennane, attorney-in-fact for Rachel Lynn Smydo	09/25/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What transactions did Rachel Lynn Smydo report on Form 4 for STBA?

The report shows a 2,550-RSU grant vested and converted into common stock on 09/23/2025 and 733 shares were withheld

How many shares does Ms. Smydo beneficially own after the reported transactions?

The Form 4 reports a post-transaction beneficial ownership of 8,398 shares following the tax-withholding.

Are there additional restricted stock units outstanding for the reporting person?

Yes. The filing discloses outstanding RSU tranches of 1,420, 1,819, and 664 units that vest in future annual installments.

Was there any correction or clarification in the filing?

Yes. The filing corrects the name of the award, stating it is an officer award, not a director award; dates, amounts, and vesting remain unchanged.

Who signed the Form 4 on behalf of the reporting person?

The Form 4 was signed by Jackie Kennane, attorney-in-fact for Rachel Lynn Smydo on 09/25/2025.