13F Insight
DOSSIER · 13F Holders · Q1 2026Financial Services · State Commercial BanksCyclicalNet sold
IBOC

INTERNATIONAL BANCSHARES COR

293 institutions still hold INTERNATIONAL BANCSHARES COR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 459044103·State Commercial Banks·293 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 5.5%
vs prior quarter
13F value held
$2.2B
64.0% inst. owned
of float
Holders
293
+113 QoQ
filers reporting
Activity
+8 / −79
+912 added · −860 reduced
this quarter
Concentration
20.20%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

293 institutions reported IBOC in Q1 2026. BlackRock, Inc. leads at 20.2% of the visible book. +113 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$447M6.6M0.01%Q1 202602
Vanguard Portfolio Management
CIK 0002100121
$229M3.4M0.01%Q1 202603
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$217M3.2M0.11%Q1 202604
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$214M3.2M0.04%Q1 202605
STATE STREET CORP
CIK 0000093751
$177M2.6M0.01%Q1 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$167M2.5M0.00%Q1 202607
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$100M1.5M0.01%Q1 202608
Azora Capital LP
CIK 0001700272
$88M1.3M5.81%Q1 202609
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$77M1.1M0.05%Q1 202610
Boston Trust Walden Corp
CIK 0001534866
$73M1.1M0.60%Q1 202611
GOLDMAN SACHS GROUP INC
CIK 0000886982
$62M924K0.01%Q1 202612
Tamar Securities, LLC
CIK 0001703081
$51M757K5.45%Q1 202613
REINHART PARTNERS, LLC.
CIK 0001080298
$50M746K1.44%Q1 202614
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$48M712K0.02%Q1 202615
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$47M704K0.01%Q1 202616
NORTHERN TRUST CORP
CIK 0000073124· Index
$45M667K0.01%Q1 202617
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$33M496K0.02%Q1 202618
Polaris Capital Management, LLC
CIK 0001316926
$31M463K2.55%Q1 202619
Bank of New York Mellon Corp
CIK 0001390777
$30M448K0.01%Q1 202620
PANAGORA ASSET MANAGEMENT INC
CIK 0000883677
$26M386K0.10%Q1 2026
Page 1 of 15
273 more holders available. Log in →