WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

COMMERCE BANK's Holding History (CIK: 0001009076)

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

Q4 2019

Shares 3,407 Value ($000) $239 Avg Close $60.78 Range $52.18 - $68.35

Q3 2019

Shares 3,126 Value ($000) $204 Avg Close $57.99 Range $50.43 - $64.27

Q2 2019

Shares 3,778 Value ($000) $262 Avg Close $59.69 Range $51.40 - $69.93

Q1 2019

Shares 3,731 Value ($000) $253 Avg Close $64.77 Range $57.75 - $72.34

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	3,407	$239	$60.78	$52.18 - $68.35
Q3 2019	3,126	$204	$57.99	$50.43 - $64.27
Q2 2019	3,778	$262	$59.69	$51.40 - $69.93
Q1 2019	3,731	$253	$64.77	$57.75 - $72.34