WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

MAI Capital Management's Holding History (CIK: 0001040197)

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

Q4 2025

Shares 1,316 Value ($000) $97 Avg Close $70.79 Range $55.84 - $82.75

Q3 2025

Shares 1,310 Value ($000) $101 Avg Close $82.33 Range $73.94 - $91.41

Q2 2025

Shares 1,348 Value ($000) $102 Avg Close $80.28 Range $67.52 - $99.92

Q1 2025

Shares 1,310 Value ($000) $131 Avg Close $108.01 Range $95.27 - $116.71

Q4 2024

Shares 1,310 Value ($000) $150 Avg Close $126.38 Range $109.67 - $146.31

Q1 2024

Shares 1,311 Value ($000) $200 Avg Close $135.33 Range $113.88 - $147.53

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,316	$97	$70.79	$55.84 - $82.75
Q3 2025	1,310	$101	$82.33	$73.94 - $91.41
Q2 2025	1,348	$102	$80.28	$67.52 - $99.92
Q1 2025	1,310	$131	$108.01	$95.27 - $116.71
Q4 2024	1,310	$150	$126.38	$109.67 - $146.31
Q1 2024	1,311	$200	$135.33	$113.88 - $147.53