| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| ANTOLIK DAVID G | PRESIDENT, Director | 800 PHILADELPHIA STREET, INDIANA | /s/ Jackie Kennane, attorney-in-fact for David G. Antolik | 13 Feb 2026 | 0001164377 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STBA | Common Stock | Other | $15,951 | +405 | +3.6% | $39.35 | 11,745 | 31 Dec 2025 | 401k | F1 |
| holding | STBA | Common Stock | 64,553 | 31 Dec 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | STBA | Restricted Stock Units | 3,410 | 31 Dec 2025 | Common Stock | 3,410 | Direct | F2, F3, F4 | ||||||
| holding | STBA | Restricted Stock Units | 2,737 | 31 Dec 2025 | Common Stock | 2,737 | Direct | F3, F5, F6 | ||||||
| holding | STBA | Restricted Stock Units | 1,316 | 31 Dec 2025 | Common Stock | 1,316 | Direct | F3, F7 |
| Id | Content |
|---|---|
| F1 | These shares represent the YTD increase in shares held in a 401K/IRA plan. |
| F2 | Filing delay due by April 3, 2025, caused by software unable to attach footnotes to awards. |
| F3 | Each restricted stock unit represents a contingent right to receive one share of S&T Bancorp, Inc. common stock. |
| F4 | 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. |
| F5 | 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. |
| F6 | 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. |
| F7 | 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. |