• International Bancshares adopted third amended and restated bylaws on May 12, 2026, removing requirement that shareholders own 3% of common stock to bring or maintain derivative proceedings.
• Changes also drop exclusive forum provision that had directed internal claims to Texas Business Court, with fallback to federal court in Southern District of Texas or state court in Webb County.
• Jury-trial waiver language for internal entity claims was eliminated.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. International Bancshares Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001104659-26-059135), on May 12, 2026, and is solely responsible for the information contained therein.