Company · Ownership research

INTERNATIONAL BANCSHARES CORP IBOC

CIK 0000315709 · CUSIP 459044103

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

This page lists the top 20 of 266 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$445.81M 6,709,927 shares	0.01%	-5.61K(-0.10%)Reduced	SEC filing ↗ Feb 12, 2026	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$413.20M 6,219,187 shares	0.01%	-83.80K(-1.30%)Reduced	SEC filing ↗ Jan 29, 2026	▾
03	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$212.50M 3,198,405 shares	0.11%	+108.18K(+3.50%)Added	SEC filing ↗ Feb 13, 2026	▾
04	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$211.11M 3,177,352 shares	0.04%	-28.88K(-0.90%)Reduced	SEC filing ↗ Feb 12, 2026	▾
05	STATE STREET CORP CIK 93751 · View history	$163.64M 2,463,011 shares	0.01%	-13.41K(-0.50%)Reduced	SEC filing ↗ Feb 13, 2026	▾
06	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$151.34M 2,277,879 shares	0.02%	+45.98K(+2.10%)Added	SEC filing ↗ Feb 13, 2026	▾
07	Azora Capital LP CIK 1700272 · View history	$101.28M 1,524,345 shares	6.38%	+395.98K(+35.10%)Added	SEC filing ↗ Feb 17, 2026	▾
08	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$95.39M 1,435,471 shares	0.01%	+9.50K(+0.70%)Added	SEC filing ↗ Feb 9, 2026	▾
09	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$90.63M 1,364,148 shares	0.07%	+93.61K(+7.40%)Added	SEC filing ↗ Feb 13, 2026	▾
10	Boston Trust Walden Corp CIK 1534866 · View history	$79.18M 1,191,816 shares	0.60%	-57.58K(-4.60%)Reduced	SEC filing ↗ Jan 28, 2026	▾
11	T. Rowe Price Investment Management, Inc. CIK 1897612 · Amended · View history	$72.52M 1,091,549 shares	0.05%	+70.19K(+6.90%)Added	SEC filing ↗ Feb 19, 2026	▾
12	REINHART PARTNERS, LLC. CIK 1080298 · View history	$49.12M 739,340 shares	1.47%	+72.03K(+10.80%)Added	SEC filing ↗ Feb 10, 2026	▾
13	Tamar Securities, LLC CIK 1703081 · View history	$49.06M 738,357 shares	5.19%	+5.52K(+0.80%)Added	SEC filing ↗ Feb 13, 2026	▾
14	NORGES BANK CIK 1374170 · View history	$45.60M 686,300 shares	0.00%	+686.30KNew	SEC filing ↗ Feb 10, 2026	▾
15	NORTHERN TRUST CORP CIK 73124 · View history	$42.95M 646,450 shares	0.01%	-46.81K(-6.80%)Reduced	SEC filing ↗ Feb 17, 2026	▾
16	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$39.22M 590,291 shares	0.01%	+48.70K(+9.00%)Added	SEC filing ↗ Mar 25, 2026	▾
17	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$36.78M 553,612 shares	0.03%	-49.96K(-8.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
18	ProShare Advisors LLC CIK 1357955 · View history	$33.40M 502,770 shares	0.06%	-13.52K(-2.60%)Reduced	SEC filing ↗ Feb 6, 2026	▾
19	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$33.32M 501,566 shares	0.02%	-113.35K(-18.40%)Reduced	SEC filing ↗ Feb 17, 2026	▾
20	Polaris Capital Management, LLC CIK 1316926 · View history	$31.71M 477,304 shares	2.63%	-68.70K(-12.60%)Reduced	SEC filing ↗ Jan 29, 2026	▾

Showing 20 / 266 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

266

Cancelled or null records excluded

Disclosed shares

43,450,833

Not deduplicated across managers

Disclosed value

$2.89B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

INTERNATIONAL BANCSHARES CORP · Q4 2025

Explore all 266 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.