WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Kovitz Investment Group Partners, LLC's Holding History (CIK: 0001665198)

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

Q3 2025

Shares 4,105 Value ($000) $316 Avg Close $82.33 Range $73.94 - $91.41

Q2 2025

Shares 5,776 Value ($000) $439 Avg Close $80.28 Range $67.52 - $99.92

Q1 2025

Shares 14,664 Value ($000) $1,467 Avg Close $108.01 Range $95.27 - $116.71

Q4 2024

Shares 16,022 Value ($000) $1,837 Avg Close $126.38 Range $109.67 - $146.31

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	4,105	$316	$82.33	$73.94 - $91.41
Q2 2025	5,776	$439	$80.28	$67.52 - $99.92
Q1 2025	14,664	$1,467	$108.01	$95.27 - $116.71
Q4 2024	16,022	$1,837	$126.38	$109.67 - $146.31