INTERNATIONAL BANCSHARES COR

Ticker: IBOC CUSIP: 459044103 Class: Common Stock

Chesley Taft & Associates LLC's Holding History (CIK: 0001164632)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 3,500 Value ($000) $233 Avg Close $67.01 Range $62.56 - $72.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,500	$233	$67.01	$62.56 - $72.92