Company: STBA
Filing Date: 2025-03-31
Form Type: DEF 14A
Source: 0001193125-25-068253
Chunk: 86

Company: S&T BANCORP INC
Filing Date: 2025-03-31
Form: DEF 14A
Chunk 86
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 in hand when you access the web site and follow the instructions to obtain your records and to create an electronic voting instruction form.   During The Meeting - Go to www.virtualshareholdermeeting.com/STBA2025   You may attend the meeting via the Internet and vote during the meeting. Have the information that is printed in the box marked by the arrow available and follow the instructions.   VOTE BY PHONE - 1-800-690-6903 Use any touch-tone telephone to transmit your voting instructions up until 11:59 p.m. Eastern Time on May 8, 2025 for shares held in a plan and up until 11:59 p.m. Eastern Time on May 12, 2025 for shares held directly. Have your proxy card in hand when you call and then follow the instructions.   VOTE BY MAIL Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. |

| TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: |

| V62555-P22827 |     | KEEP THIS PORTION FOR YOUR RECORDS |

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

| DETACH AND RETURN THIS PORTION ONLY |

THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED.

| S&T BANCORP, INC.   THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR ALL.” |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |     |                                                                                                                               |     |                       |     |     |     |                         |     | For All |     | Withhold All |     | For All Except |     | To withhold authority to vote for any individual nominee(s), mark “For All Except” and write the number(s) of the nominee(s) on the line below. |     |      |     |     |     |         |     |         |
|                                                                         |     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      1. |     | ELECTION OF DIRECTORS TO SERVE TERMS EXPIRING IN 2026                                                                         |     |                       |     |     |     |                         |     | ☐       |     | ☐