Company: STBA
Filing Date: 2025-03-31
Form Type: DEF 14A
Source: 0001193125-25-068253
Chunk: 52

Company: S&T BANCORP INC
Filing Date: 2025-03-31
Form: DEF 14A
Chunk 52
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     |                   |     |  2,292 |
| LaDawn D. Yesho         |     |           |     | 145,355 |     |            |     |  2,279 |     |                   |     |  2,279 |

2024 LTIP Performance Metrics Two metrics are used to determine the percentage of the PRSU target earned through vesting of the PRSU awards (also referred to as performance shares). The Compensation Committee believes that ROAE measures and incentivizes S&T’s long-term profitability vis-à-visour peers, while our relative TSR captures our shareholder return vis-à-visour peers. (A) Return on Average Equity (“ROAE”) for 2024 through 2026 relative to the Performance Peer Group Participants can earn from 0% to 150% of their PRSU Target based on this metric as summarized below:

| Performance Level |     | ROAE for 3-year Performance Period Relative to the Performance Peer Group |     | Vesting Percentage* |
| Below Threshold   |     | Below the 25th percentile of the Performance Peer Group                   |     | 0% of Target        |
| Threshold         |     | 25th percentile of the Performance Peer Group                             |     | 50% of Target       |
| Target            |     | 50th percentile of the Performance Peer Group                             |     | 100% of Target      |
| Maximum           |     | 75th percentile of the Performance Peer Group                             |     | 150% of Target      |

| * | Linear interpolation is utilized to determine awards between Threshold and Target and Target and Maximum. |

(B) Cumulative Total Shareholder Return for 2024 through 2026 relative to Performance Peer Group The preliminary Earned PRSU Payout calculated above is subject to adjustment by the Bank’s cumulative TSR for the three-year Performance Period. Participant’s PRSU awards can be modified by up to 30% higher or lower if the Bank’s cumulative TSR is higher or lower than the 50 thpercentile of the Peer Group.

| Performance Measures and Performance Standards Peer Relative TSR 
 Performance Level                                                |     | TSR for 3-year Average Calendar Year Period Ending 
 December 31, 2026 Relative to Peer Group           |     | Modifier of PRSU Award   Target Amount |     |     |   |
|:-----------------------------------------------------------------|:----|:---------------------------------------------------|:----|:---------------------------------------|:----|----:|:--|