WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

South Dakota Investment Council's Holding History (CIK: 0001538846)

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

Q4 2025
Shares 20,235 Value ($000) $1 Avg Close $70.79 Range $55.84 - $82.75
Q3 2025
Shares 22,435 Value ($000) $2 Avg Close $82.33 Range $73.94 - $91.41
Q2 2025
Shares 22,135 Value ($000) $2 Avg Close $80.28 Range $67.52 - $99.92
Q1 2025
Shares 22,135 Value ($000) $2 Avg Close $108.01 Range $95.27 - $116.71
Q4 2024
Shares 22,135 Value ($000) $3 Avg Close $126.38 Range $109.67 - $146.31
Q3 2024
Shares 22,135 Value ($000) $3 Avg Close $139.25 Range $125.61 - $148.72
Q2 2024
Shares 22,135 Value ($000) $3 Avg Close $148.16 Range $138.77 - $156.68
Q1 2024
Shares 22,155 Value ($000) $3 Avg Close $135.33 Range $113.88 - $147.53
Q4 2023
Shares 24,155 Value ($000) $3 Avg Close $121.60 Range $107.83 - $137.84
Q3 2023
Shares 24,155 Value ($000) $3 Avg Close $122.44 Range $108.80 - $131.81