INTERNATIONAL BANCSHARES COR (IBOC) is held by 150 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q1 2026.

Are institutions buying or selling IBOC?

In Q1 2026, 91 institutions opened or increased positions in INTERNATIONAL BANCSHARES COR while 53 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on IBOC?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for INTERNATIONAL BANCSHARES COR.

How many hedge funds hold IBOC?

150 institutional investors report holding INTERNATIONAL BANCSHARES COR (IBOC) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into IBOC?

As of Q1 2026, tracked institutions in INTERNATIONAL BANCSHARES COR show 91 buyers versus 53 sellers — net inflows.

INTERNATIONAL BANCSHARES COR

IBOC·459044103·US·Common Stock·Financial Services - Banks - Regional-13D/G

150

Holders

Avg rating(29 Elite)

$2.4B

Total Value

63% (156)

Fund Consensus

91 buying - 53 selling

Smart Money Verdict

View all

Held by 150 funds

29 elite

Who's Trading

InsiderNANorton Larry ASell $720KMay 21, 2026

ActivistVPVanguard Portfolio Management5.5%Apr 29, 2026

Activist

The Vanguard Group0.0%Mar 27, 2026

ActivistACAmerican Century Investment Management, Inc.5.2%Feb 13, 2026

Activist

Dimensional Fund Advisors LP5.2%Oct 9, 2025

InsiderSJSANCHEZ ANTONIO R JRSell $2.7MAug 15, 2025

InsiderSJSANCHEZ ANTONIO R JRSell $5.6MAug 14, 2025

View all insider trades View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	6.6M(-1.0%)	$447.1M	0.0%	+22.55%	0
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	3.4M	$228.9M	0.0%	+9.91%	42
AMERICAN CENTURY COMPANIES INC	Increased	3.2M(+0.9%)	$217.3M	0.1%	+31.39%	37
DIMENSIONAL FUND ADVISORS LP	Increased	3.2M(+0.3%)	$214.4M	0.0%	+91.92%	31
STATE STREET CORP	Increased	2.6M(+6.6%)	$176.6M	0.0%	+41.75%	33
VAVANGUARD CAPITAL MANAGEMENT LLC	New	2.5M	$166.5M	0.0%	+9.91%	42
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.5M(+3.9%)	$100.3M	0.0%	+101.47%	31
FIRST TRUST ADVISORS LP	Decreased	1.1M(-16.6%)	$76.5M	0.1%	+45.81%	0
Boston Trust Walden Corp	Decreased	1.1M(-8.7%)	$73.2M	0.6%	+51.15%	0
GOLDMAN SACHS GROUP INC	Increased	923,919(+56.5%)	$62.2M	0.0%	+16.78%	42
MILLENNIUM MANAGEMENT LLC	Increased	712,435(+28.7%)	$47.9M	0.0%	+15.55%	37
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	704,033(-69.1%)	$47.4M	0.0%	+86.77%	0
NORTHERN TRUST CORP	Increased	666,974(+3.2%)	$44.9M	0.0%	+56.33%	30
PRICE T ROWE ASSOCIATES INC /MD/	Increased	544,814(+102.8%)	$36.7M	0.0%	+14.43%	47
AQR CAPITAL MANAGEMENT LLC	Decreased	495,866(-1.1%)	$33.4M	0.0%	+32.78%	0
Bank of New York Mellon Corp	Decreased	448,252(-0.8%)	$30.2M	0.0%	+112.88%	0
PANAGORA ASSET MANAGEMENT INC	Decreased	385,948(-0.5%)	$26M	0.1%	+83.63%	0
Invesco Ltd.	Increased	385,648(+44.2%)	$26M	0.0%	+32.68%	39
ProShare Advisors LLC	Decreased	367,119(-27.0%)	$24.7M	0.0%	+22.77%	0
VFVANGUARD FIDUCIARY TRUST CO	New	355,996	$24M	0.0%	+9.91%	40