| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Yesho LaDawn D | Executive Vice President | 800 PHILADELPHIA STREET, INDIANA | /s/ Jackie Kennane, attorney-in-fact for LaDawn D. Yesho | 13 Feb 2026 | 0001568900 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STBA | Common Stock | Other | $36,597 | +930 | +9.1% | $39.35 | 11,202 | 31 Dec 2025 | 401 K | F1 |
| transaction | STBA | Common Stock | Other | $22,866 | +581 | +3.4% | $39.35 | 17,745 | 31 Dec 2025 | Direct | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | STBA | Restricted Stock Units | 1,952 | 31 Dec 2025 | Common Stock | 1,952 | Direct | F3, F4, F5 | ||||||
| holding | STBA | Restricted Stock Units | 1,527 | 31 Dec 2025 | Common Stock | 1,527 | Direct | F4, F6 | ||||||
| holding | STBA | Restricted Stock Units | 716 | 31 Dec 2025 | Common Stock | 716 | Direct | F4, F7 |
| Id | Content |
|---|---|
| F1 | These shares represent the YTD increase in shares held in a 401K/IRA plan. |
| F2 | Increase due to reinvested dividends in a dividend reinvestment plan. |
| F3 | Filing delay due by April 3, 2025, caused by software unable to attach footnotes to awards. |
| F4 | Each restricted stock unit represents a contingent right to receive one share of S&T Bancorp, Inc. common stock. |
| F5 | 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. |
| 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. |