WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

CIBC Private Wealth Group, LLC's Holding History (CIK: 0001298088)

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

Q4 2025

Shares 191 Value ($000) $14 Avg Close $70.79 Range $55.84 - $82.75

Q3 2025

Shares 686 Value ($000) $53 Avg Close $82.33 Range $73.94 - $91.41

Q1 2025

Shares 287 Value ($000) $24 Avg Close $108.01 Range $95.27 - $116.71

Q2 2018

Shares 163 Value ($000) $18 Avg Close $99.34 Range $90.39 - $110.06

Q1 2018

Shares 16,533 Value ($000) $1,838 Avg Close $98.39 Range $86.89 - $107.41

Q4 2017

Shares 19,155 Value ($000) $2,041 Avg Close $81.78 Range $72.56 - $95.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	191	$14	$70.79	$55.84 - $82.75
Q3 2025	686	$53	$82.33	$73.94 - $91.41
Q1 2025	287	$24	$108.01	$95.27 - $116.71
Q2 2018	163	$18	$99.34	$90.39 - $110.06
Q1 2018	16,533	$1,838	$98.39	$86.89 - $107.41
Q4 2017	19,155	$2,041	$81.78	$72.56 - $95.02