IBOC · Insider Trading
International Bancshares Corp
Every open-market purchase and sale reported by IBOC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | Larry A Norton | Director | Sell | −10,000 | −$720.00K |
| 2026-02-10 | Judith I Wawroski | TREASURER/PAO | M | +1,175 | +$38.56K |
| 2025-09-09 | Judith I Wawroski | TREASURER/PAO | MIXED | — | −$19.35K |
| 2025-08-15 | Antonio R Sanchez Jr | Director | Sell | −120,000 | −$8.31M |
| 2025-06-06 | Judith I Wawroski | TREASURER/PAO | M | +1,000 | +$31.86K |
| 2024-12-19 | Antonio R Sanchez Jr | Director | G | — | — |
| 2024-11-14 | Dennis E Nixon | CEO | Sell | −100,000 | −$7.17M |
| 2024-09-11 | Judith I Wawroski | TREASURER/PAO | M | +500 | +$19.15K |
| 2024-05-23 | Antonio R Sanchez Jr | Director | Sell | −80,000 | −$4.71M |
| 2024-03-13 | Antonio R Sanchez Jr | Director | Sell | −40,000 | −$2.17M |
| 2024-01-25 | Dalia F Martinez | VICE PRESIDENT | MIXED | +3,031 | +$6 |
| 2023-12-11 | Antonio R Sanchez Jr | Director | Sell | −150,000 | −$7.34M |
| 2023-11-29 | Antonio R Sanchez Jr | Director | Sell | −60,000 | −$2.69M |
| 2023-11-17 | Antonio R Sanchez Jr | Director | Sell | −60,000 | −$2.83M |
| 2023-10-06 | Antonio R Sanchez Jr | Director | J | −10,000 | — |
| 2023-08-09 | Judith I Wawroski | TREASURER/PAO | M | +375 | +$10.61K |
| 2023-04-10 | Dalia F Martinez | VICE PRESIDENT | A | +5,000 deriv. | — |
| 2023-04-10 | Judith I Wawroski | TREASURER/PAO | A | +4,000 deriv. | — |
| 2023-04-10 | Diana G Zuniga | Director | Buy | +93 | +$4.00K |
| 2023-03-17 | Antonio R Sanchez Jr | Director | J | −50,000 | — |
| 2023-02-09 | Dennis E Nixon | CEO | G | −5,792 | — |
| 2022-11-30 | Antonio R Sanchez Jr | Director | Sell | −100,000 | −$5.19M |
| 2022-11-10 | Dennis E Nixon | CEO | G | −3,355 | — |
| 2022-10-06 | Antonio R Sanchez Jr | Director | J | −100,000 | — |
| 2022-09-01 | Dennis E Nixon | CEO | G | — | — |
| 2022-08-15 | Judith I Wawroski | TREASURER/PAO | M | +575 | +$20.16K |
| 2022-08-08 | Antonio R Sanchez Jr | Director | J | −14,000 | — |
| 2022-03-08 | Dennis E Nixon | CEO | G | — | — |
| 2022-02-22 | Judith I Wawroski | TREASURER/PAO | M | +487 | +$18.65K |
| 2022-02-22 | Judith I Wawroski | TREASURER/PAO | M | +487 | +$18.65K |
| 2021-09-20 | Dennis E Nixon | CEO | MIXED | — | — |
| 2021-09-13 | Dennis E Nixon | CEO | MIXED | — | — |
| 2021-07-22 | Dennis E Nixon | CEO | G | −6,498 | — |
| 2021-03-19 | Judith I Wawroski | TREASURER/PAO | M | +750 | +$16.07K |
| 2021-03-12 | Dennis E Nixon | CEO | G | — | — |
| 2021-03-12 | Antonio R Sanchez Jr | Director | J | −130,000 | — |
| 2021-01-29 | Irving Greenblum | Director | G | −6,885 | — |
| 2021-01-08 | Irving Greenblum | Director | G | −73,885 | — |
| 2021-01-08 | Dennis E Nixon | CEO | G | +210,000 | — |
| 2020-09-17 | Judith I Wawroski | TREASURER/PAO | M | +2,250 | +$48.20K |
| 2020-09-03 | Antonio R Sanchez Jr | Director | Sell | −212,000 | −$6.56M |
| 2020-08-31 | Dennis E Nixon | CEO | G | — | — |
| 2020-06-09 | Dennis E Nixon | CEO | G | −300,000 | — |
| 2020-03-12 | Rudolph Miles | Director | Buy | +2,000 | +$55.39K |
| 2020-03-12 | Javier De Anda | Director | Buy | +7,144 | +$200.55K |
| 2020-03-02 | Dennis E Nixon | CEO | G | — | — |
| 2020-01-08 | Dennis E Nixon | CEO | G | −6,363 | — |
| 2019-12-31 | Irving Greenblum | Director | G | −6,000 | — |
| 2019-08-30 | Dennis E Nixon | CEO | G | — | — |
| 2019-08-20 | Antonio R Sanchez Jr | Director | J | −15,000 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Antonio R Sanchez Jr | Director | 1,814,554 | $122.19M |
| Dennis E Nixon | CEO | 932,753 | $62.81M |
| Larry A Norton | Director | 112,573 | $7.58M |
| Judith I Wawroski | TREASURER/PAO | 12,347 | $831.45K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the IBOC quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.