S&T BANCORP INC — Director's Dealing 2025

Oct 30, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: S&T BANCORP INC (STBA)
CIK: 0000719220
Period of Report: 2025-10-29

Reporting Person: Doliveira Stephanie Nycum (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-10-29	Director Restricted Stock Units	$	A	812	Acquired		Common Stock (812)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of S&T Bancorp, Inc. common stock.

F2: Upon vest, automatically converts into equal number of shares of common stock.

F3: The Registrant awarded a grant to the new director appointed October 29, 2025. The restricted stock units will vest on May 12, 2026. Vested Shares will be delivered to the reporting person upon vesting.