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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +12 vs. previous quarter
- 301
- 13F valueReported value at the end of Q2 2026
- $3.36B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding IBOC, Q2 2026
No superinvestor reported holding IBOC at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by International Bancshares Corp insiders from Form 4, newest first.
| 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 |
Top 10 13F holders, Q2 2026
The largest institutional positions in International Bancshares Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 7,048,194 | $535.3M | 0.01% | +403,102+6.1% | Added |
| Vanguard Portfolio Management LLC | 3,350,198 | $254.4M | 0.01% | −51,411−1.5% | Reduced |
| Dimensional Fund Advisors LP | 3,258,656 | $247.5M | 0.04% | +71,836+2.3% | Added |
| American Century Companies Inc | 3,128,416 | $237.6M | 0.11% | −100,162−3.1% | Reduced |
| State Street Corp | 2,810,776 | $213.5M | 0.01% | +185,882+7.1% | Added |
| Vanguard Capital Management LLC | 2,495,909 | $189.6M | 0.00% | +21,395+0.9% | Added |
| Geode Capital Management, LLC | 1,573,378 | $119.5M | 0.01% | +82,481+5.5% | Added |
| Boston Trust Walden Corp | 1,306,605 | $99.2M | 0.76% | +218,944+20.1% | Added |
| T. Rowe Price Investment Management, Inc. | 1,161,106 | $88.2M | 0.06% | −1,376−0.1% | Reduced |
| Goldman Sachs Group Inc | 1,035,745 | $78.7M | 0.01% | +111,826+12.1% | Added |