WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Thomist Capital Management, LP's Holding History (CIK: 0001767809)

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

Q4 2025

Shares 111,900 Value ($000) $8,365 Avg Close $70.79 Range $55.84 - $82.75

Q3 2025

Shares 46,200 Value ($000) $3,558 Avg Close $82.33 Range $73.94 - $91.41

Q2 2025

Shares 71,600 Value ($000) $5,452 Avg Close $80.28 Range $67.52 - $99.92

Q1 2025

Shares 46,100 Value ($000) $4,569 Avg Close $108.01 Range $95.27 - $116.71

Q3 2024

Shares 13,800 Value ($000) $2,071 Avg Close $139.25 Range $125.61 - $148.72

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	111,900	$8,365	$70.79	$55.84 - $82.75
Q3 2025	46,200	$3,558	$82.33	$73.94 - $91.41
Q2 2025	71,600	$5,452	$80.28	$67.52 - $99.92
Q1 2025	46,100	$4,569	$108.01	$95.27 - $116.71
Q3 2024	13,800	$2,071	$139.25	$125.61 - $148.72