TickerGuard
Buy Day today: Good (62) Broad market participation · no major macro event
IBOC

International Bancshares Corporation

Financial Services · Banks - Regional

70.50$ -0.6% vs. previous close Closing price · As of: Sep 17, 2026

Ownership

Ownership Structure

Who owns International Bancshares Corporation (IBOC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 90.3% of the shares are freely tradable; institutional investors hold 72.0%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 72.0%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 13.1%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 90.3%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 3.8%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 62Mio.

Largest Shareholders

Institutions

Institutions IBOC
Name Stake (%) Shares Change (%) Date
BlackRock Inc 10.68 6,645,092 -1.0 03/31/2026
Vanguard Portfolio Management, LLC 5.47 3,401,609 +0.0 03/31/2026
Dimensional Fund Advisors, Inc. 5.24 3,258,656 +2.3 06/30/2026
American Century Companies Inc 5.03 3,128,416 -3.1 06/30/2026
State Street Corp 4.22 2,624,894 +6.6 03/31/2026
Vanguard Capital Management, LLC 3.98 2,474,514 +0.0 03/31/2026
Geode Capital Management, LLC 2.40 1,490,897 +3.9 03/31/2026

Funds

Funds IBOC
Name Stake (%) Shares Change (%) Date
iShares Core S&P Mid-Cap ETF 3.04 1,893,356 +0.0 08/31/2026
Vanguard MStar Total Stk Mkt Idx Invest 2.87 1,787,719 +0.4 07/31/2026
Avantis US Small Cap Value ETF 2.80 1,739,103 +0.1 08/31/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

Was this page helpful to you?