Southside Bancshares's top three insider shareholders as of September 29, 2026 are Herbert C Buie (Director, 389.29K shares), Hilliard J Shands (Director, 204.23K shares), William Sheehy (Director, 137.35K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Herbert C Buie | Director | 389,288 | 0 | 389,288 | 34.0% | 05 Dec, 2025 |
| 2 | William Sheehy | Director | 137,352 | 0 | 137,352 | 12.0% | 07 Dec, 2021 |
| 3 | Michael J Bosworth | Director | 82,900 | 0 | 82,900 | 7.2% | 09 Mar, 2026 |
| 4 | Lee R Gibson | Chief Executive Officer | 58,909 | 0 | 58,909 | 5.1% | 08 Sep, 2026 |
| 5 | George H Iii Henderson | Director | 48,830 | 0 | 48,830 | 4.3% | 10 Mar, 2025 |
| 6 | Hilliard J Shands | Regional President, Etr | 42,180 | 0 | 42,180 | 3.7% | 08 Sep, 2026 |
| 7 | John F Jr Sammons | Director | 33,100 | 0 | 33,100 | 2.9% | 10 Mar, 2025 |
| 8 | Julie Shamburger | Cfo | 32,748 | 0 | 32,748 | 2.9% | 08 Sep, 2026 |
| 9 | Tony K Morgan | Director | 32,520 | 0 | 32,520 | 2.8% | 10 Mar, 2025 |
| 10 | John Robert Garrett | Director, Other | 26,956 | 0 | 26,956 | 2.4% | 08 Sep, 2026 |
| 11 | Preston L Smith | Director | 23,122 | 0 | 23,122 | 2.0% | 08 Sep, 2026 |
| 12 | T L Jr Arnold | Cco | 22,626 | 0 | 22,626 | 2.0% | 08 Sep, 2026 |
| 13 | Keith Donahoe | President And Ceo | 20,693 | 0 | 20,693 | 1.8% | 08 Sep, 2026 |
| 14 | Kirk A. Calhoun | Director | 18,932 | 0 | 18,932 | 1.7% | 08 Sep, 2026 |
| 15 | Donald W Thedford | Director | 17,908 | 0 | 17,908 | 1.6% | 10 Mar, 2025 |
| 16 | Brian K Mccabe | Coo | 17,500 | 0 | 17,500 | 1.5% | 08 Sep, 2025 |
| 17 | James D Alfred | Rp Ctx | 14,496 | 0 | 14,496 | 1.3% | 07 Mar, 2022 |
| 18 | Suni M Davis | Chief Treasury Officer | 13,862 | 0 | 13,862 | 1.2% | 08 Sep, 2026 |
| 19 | Alton L. Frailey | Director | 13,659 | 0 | 13,659 | 1.2% | 08 Sep, 2026 |
| 20 | Susan Elaine Anderson | Director | 12,776 | 0 | 12,776 | 1.1% | 08 Sep, 2026 |
| 21 | Timothy F Alexander | Clo | 11,210 | 0 | 11,210 | 1.0% | 04 Mar, 2024 |
| 22 | Shannon Dacus | Director | 9,763 | 0 | 9,763 | 0.9% | 08 Sep, 2026 |
| 23 | Curtis Burchard | Chief Lending Officer | 8,543 | 0 | 8,543 | 0.7% | 08 Sep, 2026 |
| 24 | Anne Martinez | Cro | 8,416 | 0 | 8,416 | 0.7% | 08 Sep, 2026 |
| 25 | Patricia Ann Callan | Director | 7,164 | 0 | 7,164 | 0.6% | 08 Sep, 2026 |
| 26 | Mark W Drennan | Regional President, Ntx | 6,252 | 0 | 6,252 | 0.5% | 10 Dec, 2024 |
| 27 | Lawrence Lazelle Anderson | Director | 5,512 | 0 | 5,512 | 0.5% | 08 Sep, 2026 |
| 28 | Jared C. Green | Regional President, Etx | 5,451 | 0 | 5,451 | 0.5% | 08 Sep, 2026 |
| 29 | John Mitchell Jr. Craddock | Chief Operating Officer | 4,378 | 0 | 4,378 | 0.4% | 11 Sep, 2026 |
| 30 | April Pinkley | Cao | 4,322 | 0 | 4,322 | 0.4% | 08 Sep, 2026 |
| 31 | Sherri Anthony | Chief Banking Officer | 4,291 | 0 | 4,291 | 0.4% | 08 Sep, 2026 |
| 32 | Emily S Moore | Hr Director | 3,217 | 0 | 3,217 | 0.3% | 06 Sep, 2023 |
| 33 | Cindy Blackstone | Chief Retail Officer | 2,862 | 0 | 2,862 | 0.2% | 30 Jun, 2023 |
| 34 | Jeb Weldon Jones | Director | 2,274 | 0 | 2,274 | 0.2% | 08 Sep, 2026 |
| 35 | Raymond C Mckinney | Director | 1,274 | 0 | 1,274 | 0.1% | 08 Sep, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 11 Sep, 2026 | John Mitchell Jr. Craddock | Chief Operating Officer | Disposed S | 415 | $32.01 | $13.28K | 4,378 | Direct |
| 05 Sep, 2026 | John Mitchell Jr. Craddock | Chief Operating Officer | Disposed F | 133 | $32.83 | $4.37K | 4,793 | Direct |
| 03 Sep, 2026 | Jeb Weldon Jones | Director | Acquired A | 14 | $0.00 | $0 | 2,274 | Direct |
| 03 Sep, 2026 | Lawrence Lazelle Anderson | Director | Acquired A | 19 | $0.00 | $0 | 5,512 | Direct |
| 03 Sep, 2026 | Suni M Davis | Chief Treasury Officer | Acquired A | 43 | $0.00 | $0 | 13,862 | Direct |
| 03 Sep, 2026 | Hilliard J Shands | Director | Acquired A | 14 | $0.00 | $0 | 42,180 | Direct |
| 03 Sep, 2026 | John Mitchell Jr. Craddock | Chief Operating Officer | Acquired A | 55 | $0.00 | $0 | 4,926 | Direct |
| 03 Sep, 2026 | Susan Elaine Anderson | Director | Acquired A | 14 | $0.00 | $0 | 12,776 | Direct |
| 03 Sep, 2026 | Lee R Gibson | Director | Acquired A | 97 | $0.00 | $0 | 58,909 | Direct |
| 03 Sep, 2026 | Julie Shamburger | Cfo | Acquired A | 74 | $0.00 | $0 | 32,748 | Direct |
| 03 Sep, 2026 | Jared C. Green | Regional President, Etx | Acquired A | 19 | $0.00 | $0 | 5,451 | Direct |
| 03 Sep, 2026 | John Robert Garrett | Director, Other | Acquired A | 14 | $0.00 | $0 | 26,956 | Direct |
| 03 Sep, 2026 | Preston L Smith | Director | Acquired A | 30 | $0.00 | $0 | 23,122 | Direct |
| 03 Sep, 2026 | T L Jr Arnold | Cco | Acquired A | 56 | $0.00 | $0 | 22,626 | Direct |
| 03 Sep, 2026 | Alton L. Frailey | Director | Acquired A | 154 | $0.00 | $0 | 13,659 | Direct |
| 03 Sep, 2026 | Patricia Ann Callan | Director | Acquired A | 14 | $0.00 | $0 | 7,164 | Direct |
| 03 Sep, 2026 | Shannon Dacus | Director | Acquired A | 14 | $0.00 | $0 | 9,763 | Direct |
| 03 Sep, 2026 | Keith Donahoe | President And Ceo | Acquired A | 158 | $0.00 | $0 | 20,693 | Direct |
| 03 Sep, 2026 | Sherri Anthony | Chief Banking Officer | Acquired A | 28 | $0.00 | $0 | 4,291 | Direct |
| 03 Sep, 2026 | April Pinkley | Cao | Acquired A | 33 | $0.00 | $0 | 4,322 | Direct |