WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

AMG National Trust Bank's Holding History (CIK: 0001388829)

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

Q4 2025

Shares 23,330 Value ($000) $1,725 Avg Close $70.79 Range $55.84 - $82.75

Q4 2020

Shares 15,389 Value ($000) $1,255 Avg Close $68.91 Range $56.02 - $78.45

Q3 2020

Shares 15,843 Value ($000) $1,002 Avg Close $54.23 Range $46.16 - $63.35

Q2 2020

Shares 16,150 Value ($000) $866 Avg Close $42.05 Range $30.99 - $55.36

Q1 2020

Shares 15,856 Value ($000) $605 Avg Close $51.06 Range $26.40 - $65.18

Q4 2019

Shares 13,849 Value ($000) $972 Avg Close $60.78 Range $52.18 - $68.35

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	23,330	$1,725	$70.79	$55.84 - $82.75
Q4 2020	15,389	$1,255	$68.91	$56.02 - $78.45
Q3 2020	15,843	$1,002	$54.23	$46.16 - $63.35
Q2 2020	16,150	$866	$42.05	$30.99 - $55.36
Q1 2020	15,856	$605	$51.06	$26.40 - $65.18
Q4 2019	13,849	$972	$60.78	$52.18 - $68.35