S&T BANCORP INC — Director's Dealing 2025

Apr 4, 2025

SEC Form 4/A — Form 4/A

Issuer: S&T BANCORP INC (STBA)
CIK: 0000719220
Period of Report: 2025-04-01

Reporting Person: MCCOMISH CHRISTOPHER J. (Director, Chief Executive Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-01	Restricted Stock Units	$	A	21335	Acquired		Common Stock (21335)	Direct
2025-04-01	Restricted Stock Units	$	A	10402	Acquired		Common Stock (10402)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	6492	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$		Common Stock (12460)	12460	Direct
Restricted Stock Units	$		Common Stock (12404)	12404	Direct
Restricted Stock Units	$		Common Stock (11603)	11603	Direct

Footnotes

F1: 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.

F2: Each restricted stock unit represents a contingent right to receive one share of S&T Bancorp, Inc. common stock.

F3: 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.

F4: The restricted stock units vest in three equal annual installments beginning April 1, 2025. In accordance with a pre-established deferral election made by the reporting person, vested shares will be delivered to the reporting person upon separation from service or sooner upon the occurrence of certain events.

F5: The restricted stock units vest in three equal annual installments beginning April 1, 2023. Vested shares will be delivered to the reporting person upon vesting.

F6: The restricted stock units vest in three equal annual installments beginning April 1, 2024. In accordance with a pre-established deferral election made by the reporting person, vested shares will be delivered to the reporting person upon separation from service or sooner upon the occurrence of certain events.

F7: Acquired upon achievement of certain performance criteria pursuant to the performance-based restricted stock units granted April 1, 2022, under the Issuer's 2022 Long Term Incentive Plan. The performance period for the restricted stock units was January 1, 2022, until December 31, 2024, with achievement of the applicable performance criteria subject to determination by the Issuer's Compensation Committee. This determination was obtained on March 25, 2025.

F8: The restricted performance units awarded on April 1, 2022 vesting on April 1, 2025. Vested shares will be delivered to the reporting person upon vesting.

F9: Filing delay due by April 3, 2025, caused by software unable to attach footnotes to awards.

F10: 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.