WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Quantum Portfolio Management LLC's Holding History (CIK: 0002003672)

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

Q4 2024

Shares 7,059 Value ($000) $809 Avg Close $126.38 Range $109.67 - $146.31

Q3 2024

Shares 7,105 Value ($000) $1,068 Avg Close $139.25 Range $125.61 - $148.72

Q2 2024

Shares 2,149 Value ($000) $311 Avg Close $148.16 Range $138.77 - $156.68

Q1 2024

Shares 2,729 Value ($000) $417 Avg Close $135.33 Range $113.88 - $147.53

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2024	7,059	$809	$126.38	$109.67 - $146.31
Q3 2024	7,105	$1,068	$139.25	$125.61 - $148.72
Q2 2024	2,149	$311	$148.16	$138.77 - $156.68
Q1 2024	2,729	$417	$135.33	$113.88 - $147.53