International Bancshares's top three insider shareholders as of May 23, 2026 are Antonio R Jr Sanchez (Director, 1.81Mn shares), Dennis E Nixon (Ceo, 1.40Mn shares), Antonio R Jr Sanchez (Director, 1.23Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Antonio R Jr Sanchez | - | 1,805,554 | 9,000 | 19 Dec, 2024 |
| Dennis E Nixon | Ceo | 0 | 1,400,000 | 16 Sep, 2021 |
| Judith I Wawroski | Treasurer/Pao | 12,347 | 0 | 10 Feb, 2026 |
| Dalia F Martinez | Vice President | 8,845 | 0 | 25 Jan, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 06 Feb, 2026 | Judith I Wawroski | Common Stock | A | 875 | $38.30 | 12,047 | D | M |
| 06 Feb, 2026 | Judith I Wawroski | Common Stock | A | 875 | $38.30 | 12,047 | D | M |
| 06 Feb, 2026 | Judith I Wawroski | Common Stock | A | 300 | $16.84 | 12,347 | D | M |
| 06 Feb, 2026 | Judith I Wawroski | Common Stock | A | 300 | $16.84 | 12,347 | D | M |
| 06 Feb, 2026 | Judith I Wawroski | EMPLOYEE STOCK OPTION (RIGHT TO BUY) | D | 875 | $0.00 | 0 | D | M |
| 06 Feb, 2026 | Judith I Wawroski | EMPLOYEE STOCK OPTION (RIGHT TO BUY) | D | 875 | $0.00 | 0 | D | M |
| 06 Feb, 2026 | Judith I Wawroski | EMPLOYEE STOCK OPTION (RIGHT TO BUY) | D | 300 | $0.00 | 0 | D | M |
| 06 Feb, 2026 | Judith I Wawroski | EMPLOYEE STOCK OPTION (RIGHT TO BUY) | D | 300 | $0.00 | 0 | D | M |
| 05 Sep, 2025 | Judith I Wawroski | Common Stock | A | 600 | $39.33 | 11,772 | D | M |
| 05 Sep, 2025 | Judith I Wawroski | Common Stock | A | 600 | $39.33 | 11,772 | D | M |
| 05 Sep, 2025 | Judith I Wawroski | Common Stock | D | 600 | $71.58 | 11,172 | D | D |
| 05 Sep, 2025 | Judith I Wawroski | Common Stock | D | 600 | $71.58 | 11,172 | D | D |
| 05 Sep, 2025 | Judith I Wawroski | STOCK APPRECIATION RIGHTS | A | 600 | $71.58 | 3,400 | D | M |
| 05 Sep, 2025 | Judith I Wawroski | STOCK APPRECIATION RIGHTS | A | 600 | $71.58 | 3,400 | D | M |
| 14 Aug, 2025 | Antonio R Jr Sanchez | Common Stock | D | 80,000 | $69.83 | 487,439 | I | S |
| 15 Aug, 2025 | Antonio R Jr Sanchez | Common Stock | D | 40,000 | $68.12 | 447,439 | I | S |
| 05 Jun, 2025 | Judith I Wawroski | Common Stock | A | 700 | $38.30 | 10,872 | D | M |
| 05 Jun, 2025 | Judith I Wawroski | Common Stock | A | 700 | $38.30 | 10,872 | D | M |
| 05 Jun, 2025 | Judith I Wawroski | Common Stock | A | 300 | $16.84 | 11,172 | D | M |
| 05 Jun, 2025 | Judith I Wawroski | Common Stock | A | 300 | $16.84 | 11,172 | D | M |