WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

ONTARIO TEACHERS PENSION PLAN BOARD's Holding History (CIK: 0000937567)

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

Q2 2023

Shares 3,317 Value ($000) $396 Avg Close $108.79 Range $98.37 - $116.78

Q1 2023

Shares 5,724 Value ($000) $664 Avg Close $109.37 Range $92.83 - $119.59

Q4 2022

Shares 9,954 Value ($000) $1,021 Avg Close $95.20 Range $80.55 - $107.11

Q3 2022

Shares 3,445 Value ($000) $299 Avg Close $90.33 Range $76.70 - $104.08

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	3,317	$396	$108.79	$98.37 - $116.78
Q1 2023	5,724	$664	$109.37	$92.83 - $119.59
Q4 2022	9,954	$1,021	$95.20	$80.55 - $107.11
Q3 2022	3,445	$299	$90.33	$76.70 - $104.08