PROSPERITY BANCSHARES INC

Ticker: PB CUSIP: 743606105 Class: Common Stock

AMARILLO NATIONAL BANK's Holding History (CIK: 0001053013)

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

Q4 2025

Shares 56,012 Value ($000) $3,871 Avg Close $67.02 Range $60.57 - $73.29

Q3 2025

Shares 64,272 Value ($000) $4,264 Avg Close $67.67 Range $63.46 - $74.18

Q2 2025

Shares 64,272 Value ($000) $4,514 Avg Close $67.25 Range $60.04 - $72.70

Q1 2025

Shares 70,046 Value ($000) $4,999 Avg Close $73.31 Range $66.80 - $80.01

Q4 2024

Shares 70,046 Value ($000) $5,278 Avg Close $74.22 Range $66.18 - $83.29

Q3 2024

Shares 80,828 Value ($000) $5,825 Avg Close $66.65 Range $55.87 - $71.88

Q2 2024

Shares 139,357 Value ($000) $8,520 Avg Close $58.22 Range $54.44 - $62.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	56,012	$3,871	$67.02	$60.57 - $73.29
Q3 2025	64,272	$4,264	$67.67	$63.46 - $74.18
Q2 2025	64,272	$4,514	$67.25	$60.04 - $72.70
Q1 2025	70,046	$4,999	$73.31	$66.80 - $80.01
Q4 2024	70,046	$5,278	$74.22	$66.18 - $83.29
Q3 2024	80,828	$5,825	$66.65	$55.87 - $71.88
Q2 2024	139,357	$8,520	$58.22	$54.44 - $62.43