International Bancshares Corp
IBOC- Exchange
- Nasdaq
- Industry
- State Commercial Banks
- SEC CIK
- 0000315709
No open-market purchases or sales by International Bancshares Corp insiders were filed in the last 90 days; 301 institutions reported holding it in 13F filings for Q2 2026, worth $3.36B in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by International Bancshares Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for International Bancshares Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Norton Larry A | Director | 111,917Indirect | May 22, 2026 | 1 |
| Wawroski Judith I | TREASURER/PAO | 12,347 | Feb 10, 2026 | 1 |
| Sanchez Antonio R Jr | Director, 10% Owner | 447,439Indirect | Aug 15, 2025 | 0 |
| Nixon Dennis E | CEO | 900,000Indirect | Nov 14, 2024 | 0 |
| Martinez Dalia F | VICE PRESIDENT | 8,845 | Jan 25, 2024 | 0 |
| Zuniga Diana G | Director | 13,003 | Apr 10, 2023 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 22, 2026 (view filing) | May 21 | 1 day | Norton Larry ADirector | SSale | −10.0K | $72.00 | −$720.0K | −8.2%111.9K after | |
| Aug 15, 2025 (view filing) | Aug 14-15 | 1 day | Sanchez Antonio R JrDirector, 10% Owner | SSale | −120.0K | $69.26 | −$8.31M | −21.1%447.4K after | 2 lots |
| Nov 14, 2024 (view filing) | Nov 12-13 | 2 days | Nixon Dennis ECEO | SSale | −100.0K | $71.72 | −$7.17M | −10.0%900.0K after | 2 lots |
| May 23, 2024 (view filing) | May 21-22 | 2 days | Sanchez Antonio R JrDirector, 10% Owner | SSale | −80.0K | $58.90 | −$4.71M | −6.1%1.23M after | 2 lots |
| Mar 13, 2024 (view filing) | Mar 11 | 2 days | Sanchez Antonio R JrDirector, 10% Owner | SSale | −40.0K | $54.22 | −$2.17M | −3.0%1.31M after | |
| Dec 11, 2023 (view filing) | Dec 7-8 | 4 days | Sanchez Antonio R JrDirector, 10% Owner | SSale | −100.0K | $48.96 | −$4.90M | −15.0%567.4K after | 2 lots |
| Dec 11, 2023 (view filing) | Dec 7-8 | 4 days | Sanchez Antonio R JrDirector, 10% Owner | SSale | −50.0K | $48.96 | −$2.45M | −2.7%1.81M after | 2 lots |
| Nov 29, 2023 (view filing) | Nov 27-28 | 2 days | Sanchez Antonio R JrDirector, 10% Owner | SSale | −60.0K | $44.75 | −$2.69M | −4.2%1.35M after | 2 lots |
| Nov 17, 2023 (view filing) | Nov 15-16 | 2 days | Sanchez Antonio R JrDirector, 10% Owner | SSale | −60.0K | $47.20 | −$2.83M | −4.1%1.41M after | 2 lots |
| Apr 10, 2023 (view filing) | Feb 24, 2022-Feb 24, 2023 | 410 daysLate | Zuniga Diana GDirector | PPurchase | +93 | $43.04 | +$4.00K | +0.7%13.0K after | 3 lots10b5-1 |
| Nov 30, 2022 (view filing) | Nov 28-29 | 2 days | Sanchez Antonio R JrDirector, 10% Owner | SSale | −100.0K | $51.90 | −$5.19M | −13.0%667.4K after | 2 lots |