Form 8-K - Current report:
SEC Accession No. 0001104659-26-059135
Filing Date
2026-05-12
Accepted
2026-05-12 11:01:07
Documents
12
Period of Report
2026-05-12
Items
Item 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 FORM 8-K tm2614341d1_8k.htm   iXBRL 8-K 25738
2 EXHIBIT 3.1 tm2614341d1_ex3-1.htm EX-3.1 99310
  Complete submission text file 0001104659-26-059135.txt   317051

Data Files

Seq Description Document Type Size
3 XBRL TAXONOMY EXTENSION SCHEMA iboc-20260512.xsd EX-101.SCH 2999
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE iboc-20260512_lab.xml EX-101.LAB 34239
5 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE iboc-20260512_pre.xml EX-101.PRE 22348
15 EXTRACTED XBRL INSTANCE DOCUMENT tm2614341d1_8k_htm.xml XML 3210
Mailing Address P O BOX 1359 1200 SAN BERNARDO LAREDO TX 78040
Business Address 12OO SAN BERNARDO AVE PO BOX 1359 LAREDO TX 78040-1359 9567227611
INTERNATIONAL BANCSHARES CORP (Filer) CIK: 0000315709 (see all company filings)

EIN.: 742157138 | State of Incorp.: TX | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 000-09439 | Film No.: 26966641
SIC: 6022 State Commercial Banks
(CF Office: 02 Finance)