WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Manchester Capital Management LLC's Holding History (CIK: 0001393389)

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

Q4 2025

Shares 21 Value ($000) $2 Avg Close $70.79 Range $55.84 - $82.75

Q3 2025

Shares 84 Value ($000) $6 Avg Close $82.33 Range $73.94 - $91.41

Q2 2025

Shares 23 Value ($000) $2 Avg Close $80.28 Range $67.52 - $99.92

Q2 2024

Shares 1,128 Value ($000) $163 Avg Close $148.16 Range $138.77 - $156.68

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	21	$2	$70.79	$55.84 - $82.75
Q3 2025	84	$6	$82.33	$73.94 - $91.41
Q2 2025	23	$2	$80.28	$67.52 - $99.92
Q2 2024	1,128	$163	$148.16	$138.77 - $156.68