IBOC · NASDAQ · Banks - Regional

International Bancshares (IBOC)

Texas and Oklahoma banking franchise serving local businesses, consumers, and cross-border trade.

$70.22
vs last close+0.06 (+0.09%)

13F · 13D/G · Form 4

Institutions≈ 71.57%44.51M shares
302 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail
Insiders5.27%3.28M shares
4 holders · as of May 22, 2026
Other≈ 23.16%14.40M shares
remainder

62.19M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

13F · 13D/G · Form 4

HolderStakeSharesDate
BlackRock, Inc.Institution
11.33%7.05Mas of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
5.39%3.35Mas of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
5.24%3.26Mas of Jun 30, 2026
American Century Investment Management, Inc.Institution
5.14%3.20Mfiled Feb 13, 2026
American Century Companies IncInstitution
5.03%3.13Mas of Jun 30, 2026
State Street CorpInstitution
4.52%2.81Mas of Jun 30, 2026
Vanguard Capital Management LLCInstitution
4.01%2.50Mas of Jun 30, 2026
Antonio R. Jr SanchezInsiderdirector, 10 percent owner
3.62%2.25Mfiled Aug 15, 2025
Geode Capital Management, LLCInstitution
2.53%1.57Mas of Jun 30, 2026
Boston Trust Walden CorpInstitution
2.10%1.31Mas of Jun 30, 2026
T. Rowe Price Investment Management, Inc.Institution
1.87%1.16Mas of Jun 30, 2026
Goldman Sachs Group IncInstitution
1.67%1.04Mas of Jun 30, 2026
Dennis E. NixonInsiderdirector, officer: CEO
1.45%900,000filed Nov 14, 2024
Azora Capital LPInstitution
1.42%885,768as of Jun 30, 2026
Price T Rowe Associates Inc /MD/Institution
1.35%839,850as of Jun 30, 2026
First Trust Advisors LPInstitution
1.32%820,840as of Jun 30, 2026
Northern Trust CorpInstitution
1.21%750,864as of Jun 30, 2026
Reinhart Partners, Inc.Institution
1.21%749,761as of Jun 30, 2026
Tamar Securities, LLCInstitution
1.16%721,211as of Jun 30, 2026
Norges BankInstitution
1.13%700,374as of Jun 30, 2026
Charles Schwab Investment Management IncInstitution
1.12%694,616as of Jun 30, 2026
Sixth Street Partners Management Company, L.P.Institution
1.12%694,616as of Jun 30, 2026
Millennium Management LLCInstitution
1.05%650,775as of Jun 30, 2026
AQR Capital Management LLCInstitution
0.94%587,610as of Jun 30, 2026
Bank of New York Mellon CorpInstitution
0.70%436,744as of Jun 30, 2026

13F, as of Jun 30, 2026

302 holders · 44.51M shares · 39 new positions · 165 increased · 86 reduced · 31 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.7.05M11.33%+403.1KAug 7, 2026
Vanguard Portfolio Management LLC3.35M5.39%−51.4KAug 13, 2026
Dimensional Fund Advisors LP3.26M5.24%+71.8KAug 11, 2026
American Century Companies Inc3.13M5.03%−100.2KAug 12, 2026
State Street Corp2.81M4.52%+185.9KAug 7, 2026
Vanguard Capital Management LLC2.50M4.01%+21.4KAug 13, 2026
Geode Capital Management, LLC1.57M2.53%+82.5KAug 12, 2026
Boston Trust Walden Corp1.31M2.10%+218.9KJul 24, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Vanguard Portfolio Management5.51%3.43M13GApr 29, 2026
American Century Investment Management, Inc.5.20%3.20M13GFeb 13, 2026
Dimensional Fund Advisors LP5.20%3.21M13GOct 9, 2025

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
May 21, 2026
Larry A. Nortondirector
Sale10,000$72.00111,917

House and Senate disclosures

Not reported.