WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Weiss Asset Management LP's Holding History (CIK: 0001357550)

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

Q4 2025

Shares 9,928 Value ($000) $734 Avg Close $70.79 Range $55.84 - $82.75

Q1 2025

Shares 31,702 Value ($000) $3,171 Avg Close $108.01 Range $95.27 - $116.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,928	$734	$70.79	$55.84 - $82.75
Q1 2025	31,702	$3,171	$108.01	$95.27 - $116.71