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Who owns International Bancshares (IBOC) stock

286 funds reported International Bancshares (IBOC) shares in their latest 13F filings, worth $3.6B in all. The largest holder is BlackRock ($535M). Last quarter 143 funds added to their stakes and 101 cut them.

Largest holders of IBOC (13F)Largest holders of IBOC (13F)BlackRock$535MVanguard Group$413MVanguard Portfolio Management LLC$254MDimensional Fund Advisors LP$247MAmerican Century Companies$238MState Street$213MVanguard Capital Management LLC$190MGeode Capital Management, LLC$120MT. Rowe Price Investment Manageme…$88.2MBoston Trust Walden$85.5M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock7,048,194$535Mincrease2026-06-30
Vanguard Group6,219,187$413Mdecrease2025-12-31
Vanguard Portfolio Management LLC3,350,198$254Mdecrease2026-06-30
Dimensional Fund Advisors LP3,258,656$247Mincrease2026-06-30
American Century Companies3,128,416$238Mdecrease2026-06-30
State Street2,810,776$213Mincrease2026-06-30
Vanguard Capital Management LLC2,495,909$190Mincrease2026-06-30
Geode Capital Management, LLC1,573,378$120Mincrease2026-06-30
T. Rowe Price Investment Management1,161,106$88.2Mdecrease2026-06-30
Boston Trust Walden1,248,850$85.5Mdecrease2026-09-30
Goldman Sachs Group1,035,745$78.7Mincrease2026-06-30
Azora Capital LP885,768$67.3Mdecrease2026-06-30
Price T Rowe Associates839,850$63.8Mincrease2026-06-30
First Trust Advisors LP820,840$62.3Mdecrease2026-06-30
Northern Trust750,864$57.0Mincrease2026-06-30

International Bancshares' latest quarter

International Bancshares, Q3 2026: revenue $229M (+5% year over year), operating margin 63.2%, net earnings $114M, operating cash flow $127M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most IBOC stock?

By the latest 13F filings: BlackRock ($535M); Vanguard Group ($413M); Vanguard Portfolio Management LLC ($254M); Dimensional Fund Advisors LP ($247M); American Century Companies ($238M).

What is the short interest in IBOC?

2,383,736 shares were sold short at the 2026-10-15 settlement, 5.76% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.