Antonio R. Sanchez Jr. - 21 Oct 2026 Form 4 Insider Report for INTERNATIONAL BANCSHARES CORP (IBOC)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
23 Oct 2026, 13:24:31 UTC
Prior SEC filing
15 Aug 2025
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ ANTONIO R. SANCHEZ JR.
Filing notes and source

Key filing fact

Antonio R. Sanchez Jr. filed Form 4 for INTERNATIONAL BANCSHARES CORP (IBOC) on 23 Oct 2026.

Key facts

  • This page summarizes Antonio R. Sanchez Jr.'s Form 4 filing for INTERNATIONAL BANCSHARES CORP (IBOC).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 23 Oct 2026, 13:24.

Change

  • Previous filing in this sequence was filed on 15 Aug 2025.
  • Current net transaction value: $0.

Research use

  • This tells you what this filing adds before you inspect full transaction and derivative tables.
  • You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001060529 Primary reporting owner

SANCHEZ ANTONIO R JR

Relationship
Director, 10%+ Owner
Address
1360 POST OAK BLVD STE 2400, HOUSTON
Signature
/s/ ANTONIO R. SANCHEZ JR.
Signature date
23 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IBOC transaction

Common Stock

Other

Transaction value
Shares
-25,000
Change %
-2%
Price
$0.000000*
Shares after
1,207,245
Date
21 Oct 2026
Ownership
Held in Trust
Footnotes
F1, F2
IBOC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
1,805,554
Date
21 Oct 2026
Ownership
Direct
IBOC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
9,000
Date
21 Oct 2026
Ownership
Held by Grandchildren's Trust
IBOC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
447,439
Date
21 Oct 2026
Ownership
Held in Partnership
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

On October 21, 2026, a trust for which the reporting person serves as co-trustee distributed 25,000 shares to a beneficiary of the trust.

Footnote F2

The reporting person disclaims beneficial ownership of the securities except to the extent of the pecuniary interest therein, if any.

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