WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025
Shares 25,711 Value ($000) $1,901 Avg Close $70.79 Range $55.84 - $82.75
Q2 2025
Shares 26,000 Value ($000) $1,974 Avg Close $80.28 Range $67.52 - $99.92
Q1 2025
Shares 25,647 Value ($000) $2,565 Avg Close $108.01 Range $95.27 - $116.71
Q4 2024
Shares 22,247 Value ($000) $2,551 Avg Close $126.38 Range $109.67 - $146.31
Q3 2024
Shares 21,778 Value ($000) $3,273 Avg Close $139.25 Range $125.61 - $148.72
Q2 2024
Shares 20,385 Value ($000) $2,952 Avg Close $148.16 Range $138.77 - $156.68
Q1 2024
Shares 74,942 Value ($000) $11,451 Avg Close $135.33 Range $113.88 - $147.53
Q4 2023
Shares 74,292 Value ($000) $10,398 Avg Close $121.60 Range $107.83 - $137.84
Q3 2023
Shares 32,174 Value ($000) $4,011 Avg Close $122.44 Range $108.80 - $131.81
Q2 2023
Shares 34,751 Value ($000) $4,152 Avg Close $108.79 Range $98.37 - $116.78
Q1 2023
Shares 38,982 Value ($000) $4,521 Avg Close $109.37 Range $92.83 - $119.59
Q4 2022
Shares 19,138 Value ($000) $1,962 Avg Close $95.20 Range $80.55 - $107.11
Q3 2022
Shares 21,582 Value ($000) $1,875 Avg Close $90.33 Range $76.70 - $104.08
Q2 2022
Shares 26,332 Value ($000) $2,581 Avg Close $115.03 Range $86.41 - $132.48
Q1 2022
Shares 4,215 Value ($000) $520 Avg Close $102.15 Range $87.54 - $119.36
Q4 2021
Shares 4,031 Value ($000) $392 Avg Close $91.08 Range $82.73 - $97.95
Q3 2021
Shares 4,157 Value ($000) $379 Avg Close $79.74 Range $72.56 - $88.16
Q2 2021
Shares 3,956 Value ($000) $356 Avg Close $90.14 Range $80.84 - $98.96
Q1 2021
Shares 4,299 Value ($000) $382 Avg Close $80.32 Range $68.77 - $90.16
Q4 2020
Shares 6,060 Value ($000) $494 Avg Close $68.91 Range $56.02 - $78.45
Q3 2020
Shares 6,240 Value ($000) $394 Avg Close $54.23 Range $46.16 - $63.35
Q2 2020
Shares 6,150 Value ($000) $330 Avg Close $42.05 Range $30.99 - $55.36
Q1 2020
Shares 18,376 Value ($000) $701 Avg Close $51.06 Range $26.40 - $65.18
Q4 2019
Shares 25,166 Value ($000) $1,765 Avg Close $60.78 Range $52.18 - $68.35
Q2 2019
Shares 9,004 Value ($000) $625 Avg Close $59.69 Range $51.40 - $69.93
Q1 2019
Shares 15,192 Value ($000) $1,031 Avg Close $64.77 Range $57.75 - $72.34
Q4 2018
Shares 21,244 Value ($000) $1,406 Avg Close $64.35 Range $53.36 - $76.44
Q3 2018
Shares 41,144 Value ($000) $3,419 Avg Close $86.83 Range $72.82 - $100.10
Q2 2018
Shares 43,833 Value ($000) $4,718 Avg Close $99.34 Range $90.39 - $110.06
Q1 2018
Shares 7,141 Value ($000) $794 Avg Close $98.39 Range $86.89 - $107.41
Q4 2017
Shares 7,339 Value ($000) $782 Avg Close $81.78 Range $72.56 - $95.02
Q3 2017
Shares 7,244 Value ($000) $602 Avg Close $64.66 Range $57.52 - $74.59
Q2 2017
Shares 7,099 Value ($000) $470 Avg Close $55.73 Range $52.23 - $59.49
Q1 2017
Shares 7,549 Value ($000) $499 Avg Close $55.38 Range $49.25 - $59.68
Q4 2016
Shares 20,777 Value ($000) $1,163 Avg Close $47.64 Range $42.61 - $53.78
Q3 2016
Shares 24,240 Value ($000) $1,297 Avg Close $41.92 Range $34.93 - $47.03
Q2 2016
Shares 25,240 Value ($000) $1,083 Avg Close $39.55 Range $34.26 - $45.64
Q1 2016
Shares 28,640 Value ($000) $1,326 Avg Close $39.11 Range $34.33 - $46.52
Q4 2015
Shares 29,940 Value ($000) $1,626 Avg Close $49.75 Range $44.01 - $54.52
Q3 2015
Shares 30,070 Value ($000) $1,560 Avg Close $49.96 Range $42.26 - $59.13
Q2 2015
Shares 30,890 Value ($000) $2,119 Avg Close $62.10 Range $58.06 - $67.58
Q1 2015
Shares 31,200 Value ($000) $2,245 Avg Close $54.56 Range $46.07 - $62.01
Q4 2014
Shares 32,020 Value ($000) $1,956 Avg Close $57.80 Range $45.45 - $73.16
Q3 2014
Shares 30,240 Value ($000) $2,618 Avg Close $76.69 Range $70.51 - $83.52
Q2 2014
Shares 30,020 Value ($000) $2,514 Avg Close $63.36 Range $52.18 - $72.01
Q1 2014
Shares 29,120 Value ($000) $1,927 Avg Close $53.68 Range $48.11 - $58.70
Q4 2013
Shares 14,600 Value ($000) $1,782 Avg Close $47.34 Range $43.59 - $51.55
Q3 2013
Shares 14,980 Value ($000) $1,568 Avg Close $42.90 Range $40.28 - $45.40
Q2 2013
Shares 16,140 Value ($000) $1,556 Avg Close $37.72 Range $32.17 - $41.82