WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Universal- Beteiligungs- und Servicegesellschaft mbH's Holding History (CIK: 0002057170)

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

Q4 2025

Shares 9,182 Value ($000) $679 Avg Close $70.79 Range $55.84 - $82.75

Q3 2025

Shares 9,473 Value ($000) $730 Avg Close $82.33 Range $73.94 - $91.41

Q2 2025

Shares 8,896 Value ($000) $675 Avg Close $80.28 Range $67.52 - $99.92

Q1 2025

Shares 2,816 Value ($000) $282 Avg Close $108.01 Range $95.27 - $116.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,182	$679	$70.79	$55.84 - $82.75
Q3 2025	9,473	$730	$82.33	$73.94 - $91.41
Q2 2025	8,896	$675	$80.28	$67.52 - $99.92
Q1 2025	2,816	$282	$108.01	$95.27 - $116.71