International Bancshares
IBOC · NASDAQ
$65.31−$0.73 (−1.11%)TodayMarket closed ·
Prev close $66.04
Who owns IBOC
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 51.5% of IBOC’s shares.
- BlackRock Institutional Trust Company, N.A.10.0%
- Sanchez (Antonio R Jr)9.0%
- Vanguard Portfolio Management, LLC5.4%
- Dimensional Fund Advisors, L.P.5.2%
- Next 6 largest institutions21.8%
- All other shareholders48.5%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 6.24M | 10.04% |
| Sanchez (Antonio R Jr) | 5.63M | 9.05% |
| Vanguard Portfolio Management, LLC | 3.35M | 5.39% |
| Dimensional Fund Advisors, L.P. | 3.26M | 5.24% |
| American Century Investment Management, Inc. | 3.13M | 5.03% |
| State Street Investment Management (US) | 2.81M | 4.52% |
| Vanguard Capital Management, LLC | 2.50M | 4.01% |
| Nixon (Dennis E) | 2.23M | 3.59% |
| Geode Capital Management, L.L.C. | 1.57M | 2.53% |
| Boston Trust Walden Company | 1.31M | 2.10% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Mid-Cap ETF | 1.89M | 3.04% |
| Vanguard Total Stock Market Index Fund | 1.79M | 2.88% |
| Avantis US Small Cap Value ETF | 1.74M | 2.80% |
| iShares Russell 2000 ETF | 1.46M | 2.35% |
| Vanguard Small-Cap Index Fund | 1.29M | 2.07% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $720.00K (1 trade) of IBOC on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Norton Larry A | Sale | 10.00K | $720.00K |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.25M
- Days to cover
- 5.45
- % of shares outstanding
- 3.62%
- Average daily volume
- 413.75K
- Change since last report
- +7.5%
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