IBOC insider transaction filings

INTERNATIONAL BANCSHARES CORP — 11 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-05-22. Screen IBOC transaction legs live →

Insider transaction summary — last 90 days

No Form 4 filings for IBOC between 2026-06-24 and 2026-09-22. The table below lists the most recent filings on record.

Recent Form 4 filings — INTERNATIONAL BANCSHARES CORP

FiledFormInsiderReported transactionsSource
2026-05-224Norton Larry A — DirectorSale (S): 10,000 @ $72EDGAR
2026-02-104WAWROSKI JUDITH I — TREASURER/PAOOption exercise (M): 875 @ $38.30 · Option exercise (M): 300 @ $16.84 · Option exercise (M): 875 (derivative) @ $0 · Option exercise (M): 300 (derivative) @ $0EDGAR
2025-09-094WAWROSKI JUDITH I — TREASURER/PAOOption exercise (M): 600 @ $39.33 · Disposition to issuer (D): 600 @ $71.58 · Option exercise (M): 600 (derivative) @ $71.58EDGAR
2025-08-154SANCHEZ ANTONIO R JR — Director, 10% ownerSale (S): 80,000 @ $69.83 · Sale (S): 40,000 @ $68.12EDGAR
2025-06-064WAWROSKI JUDITH I — TREASURER/PAOOption exercise (M): 700 @ $38.30 · Option exercise (M): 300 @ $16.84 · Option exercise (M): 700 (derivative) @ $0 · Option exercise (M): 300 (derivative) @ $0EDGAR
2024-12-194SANCHEZ ANTONIO R JR — Director, 10% ownerGift (G): 9,000 @ $0 · Gift (G): 9,000 @ $0EDGAR
2024-11-144NIXON DENNIS E — CEO, DirectorSale (S): 34,815 @ $72.18 · Sale (S): 65,185 @ $71.47EDGAR
2024-09-114WAWROSKI JUDITH I — TREASURER/PAOOption exercise (M): 500 @ $38.30 · Option exercise (M): 500 (derivative) @ $0EDGAR
2024-05-234SANCHEZ ANTONIO R JR — Director, 10% ownerSale (S): 30,112 @ $59.75 · Sale (S): 49,888 @ $58.39EDGAR
2024-03-134SANCHEZ ANTONIO R JR — Director, 10% ownerSale (S): 40,000 @ $54.22EDGAR
2024-01-254MARTINEZ DALIA F — VICE PRESIDENTOption exercise (M): 5,000 @ $21.42 · Tax withholding (F): 1,969 @ $54.39 · Option exercise (M): 5,000 (derivative) @ $0EDGAR

Recent 8-K events — INTERNATIONAL BANCSHARES CORP

FiledFormItems reportedSource
2026-08-068-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits
EDGAR
2026-08-038-K8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2026-05-208-K5.07 — Submission of Matters to a Vote of Security HoldersEDGAR
2026-05-128-K5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
9.01 — Financial Statements and Exhibits
EDGAR
2026-05-078-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits
EDGAR
2026-02-268-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits
EDGAR
2026-02-028-K8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2025-11-068-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits
EDGAR
2025-08-128-K5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
9.01 — Financial Statements and Exhibits
EDGAR
2025-08-078-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits
EDGAR
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