---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-023551"
form_type: "8-K"
ticker: "IBOC"
cik: "0000315709"
company_name: "INTERNATIONAL BANCSHARES CORP"
filed_at: "2025-03-14T23:59:59+00:00"
generated_at: "2026-05-24T19:02:34.053879+00:00"
event_type: "other"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# International Bancshares authorizes $150M stock repurchase program for 12 months

## Summary
- Board approved $150M common stock repurchase; program runs March 15, 2025 to March 15, 2026.
- Buyback signals management confidence in capital position; stock trades on Nasdaq under IBOC.
- No details on execution method or pricing provided in the filing.

## SEC filing metadata
- accession: 0001104659-25-023551
- form_type: 8-K
- ticker: IBOC
- cik: 0000315709
- company_name: INTERNATIONAL BANCSHARES CORP
- filed_at: 2025-03-14T23:59:59+00:00
- event_type: other
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/315709/000110465925023551/0001104659-25-023551-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/315709/000110465925023551/tm259164d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-023551
- JSON: https://secwatch.observer/filing/0001104659-25-023551.json
- Plain text: https://secwatch.observer/filing/0001104659-25-023551.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.