IBOC · TXSE · CIK 0000315709

INTERNATIONAL BANCSHARES CORP

INTERNATIONAL BANCSHARES CORP’s most recent SEC filing in our snapshot is a Form 4 filed on Oct 23, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $886.3M and net income of $412.3M, according to its XBRL data on EDGAR. Its EDGAR record lists 3 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$886.3M
Net income, FY2025
$412.3M
Form 4 filings on record, past 12 months
3

Company overview

Legal name (as filed)
INTERNATIONAL BANCSHARES CORP
Ticker
IBOC
SEC Central Index Key (CIK)
0000315709
Industry (SIC)
State Commercial Banks (code 6022)
Business address
LAREDO, TX
State or country of incorporation
TX
Fiscal year ends
December 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#1466 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from INTERNATIONAL BANCSHARES CORP’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$398.1MFY2021$525.8MFY2022$800.2MFY2023$866.0MFY2024$886.3MFY2025
Net income
$253.9MFY2021$300.2MFY2022$411.8MFY2023$409.2MFY2024$412.3MFY2025
IBOC annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$398.1M$525.8M$800.2M$866.0M$886.3M
Net income$253.9M$300.2M$411.8M$409.2M$412.3M
Diluted EPS$4.00$4.78$6.62$6.57$6.62
Total assets$16.0B$15.5B$15.1B$15.7B$16.6B
Cash and equivalents$3.2B$2.1B$651.1M$352.7M$536.5M

XBRL tags used: revenue = InterestAndDividendIncomeOperating; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

IBOC latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Feb 26, 202610-KAnnual report· period Dec 31, 2025Document · Index
Aug 6, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Oct 6, 20268-KDelisting notice; Regulation FD disclosure· period Oct 6, 2026Document · Index
Apr 20, 2026DEF 14AFORM- DEF 14A· period May 18, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about INTERNATIONAL BANCSHARES CORP, by form type:

8-K ×144 ×610-Q ×5144 ×3SCHEDULE 13G ×2ARS ×2SCHEDULE 13G/A ×225 ×1CERT ×18-A12B ×1DEFA14A ×1DEF 14A ×110-K ×1
IBOC recent filings
FiledFormWhat it isOriginal
Oct 23, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 21, 2026Document · Index
Oct 16, 20262525Document · Index
Oct 13, 2026CERTIBOC 8A CERTIFICATIONDocument · Index
Oct 13, 20268-A12B8-A12BDocument · Index
Oct 6, 20268-KDelisting notice; Regulation FD disclosure· period Oct 6, 2026Document · Index
Aug 6, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 6, 20268-KResults of operations· period Aug 6, 2026Document · Index
Aug 3, 20268-KOther events· period Aug 3, 2026Document · Index
May 22, 20264Statement of changes in beneficial ownership (insider trade)· period May 21, 2026Document · Index
May 21, 2026144Notice of proposed sale of securitiesDocument · Index
May 20, 20268-KShareholder vote results· period May 18, 2026Document · Index
May 12, 20268-KCharter, bylaws or fiscal year change· period May 12, 2026Document · Index
May 7, 202610-QQuarterly report· period Mar 31, 2026Document · Index
May 7, 20268-KResults of operations· period May 7, 2026Document · Index
Apr 29, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Apr 20, 2026ARSARS· period Dec 31, 2025Document · Index
Apr 20, 2026DEFA14AAdditional proxy soliciting materialsDocument · Index
Apr 20, 2026DEF 14AFORM- DEF 14A· period May 18, 2026Document · Index
Mar 27, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Feb 26, 202610-KAnnual report· period Dec 31, 2025Document · Index
Feb 26, 20268-KResults of operations· period Feb 26, 2026Document · Index
Feb 13, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Feb 10, 20264Statement of changes in beneficial ownership (insider trade)· period Feb 6, 2026Document · Index
Feb 2, 20268-KOther events· period Feb 2, 2026Document · Index
Nov 21, 2025144Notice of proposed sale of securitiesDocument · Index
Nov 6, 202510-QQuarterly report· period Sep 30, 2025Document · Index
Nov 6, 20258-KResults of operations· period Nov 6, 2025Document · Index
Oct 9, 2025SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Sep 9, 20254Statement of changes in beneficial ownership (insider trade)· period Sep 5, 2025Document · Index
Aug 15, 20254Statement of changes in beneficial ownership (insider trade)· period Aug 14, 2025Document · Index
Aug 14, 2025144Notice of proposed sale of securitiesDocument · Index
Aug 12, 20258-KCharter, bylaws or fiscal year change· period Aug 6, 2025Document · Index
Aug 7, 202510-QQuarterly report· period Jun 30, 2025Document · Index
Aug 7, 20258-KResults of operations· period Aug 7, 2025Document · Index
Aug 1, 20258-KOther events· period Aug 1, 2025Document · Index
Jun 6, 20254Statement of changes in beneficial ownership (insider trade)· period Jun 5, 2025Document · Index
May 21, 20258-KShareholder vote results· period May 19, 2025Document · Index
May 5, 202510-QQuarterly report· period Mar 31, 2025Document · Index
May 5, 20258-KResults of operations· period May 5, 2025Document · Index
Apr 21, 2025ARSARS· period Dec 31, 2024Document · Index

Insider filing activity

3 Form 4 filings appear in INTERNATIONAL BANCSHARES CORP’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0000315709 and XBRL company facts. INTERNATIONAL BANCSHARES CORP on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.