WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

STRS OHIO's Holding History (CIK: 0000820478)

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

Q4 2025
Shares 800 Value ($000) $59 Avg Close $70.79 Range $55.84 - $82.75
Q3 2025
Shares 799 Value ($000) $62 Avg Close $82.33 Range $73.94 - $91.41
Q2 2025
Shares 799 Value ($000) $61 Avg Close $80.28 Range $67.52 - $99.92
Q3 2024
Shares 27,363 Value ($000) $4,112 Avg Close $139.25 Range $125.61 - $148.72
Q2 2024
Shares 27,035 Value ($000) $3,915 Avg Close $148.16 Range $138.77 - $156.68
Q1 2024
Shares 26,625 Value ($000) $4 Avg Close $135.33 Range $113.88 - $147.53
Q4 2023
Shares 33,888 Value ($000) $5 Avg Close $121.60 Range $107.83 - $137.84
Q3 2023
Shares 36,351 Value ($000) $5 Avg Close $122.44 Range $108.80 - $131.81
Q2 2023
Shares 50,693 Value ($000) $6 Avg Close $108.79 Range $98.37 - $116.78
Q1 2023
Shares 47,100 Value ($000) $5 Avg Close $109.37 Range $92.83 - $119.59
Q4 2022
Shares 50,904 Value ($000) $5 Avg Close $95.20 Range $80.55 - $107.11
Q3 2022
Shares 49,946 Value ($000) $4,339 Avg Close $90.33 Range $76.70 - $104.08
Q2 2022
Shares 30,529 Value ($000) $2,992 Avg Close $115.03 Range $86.41 - $132.48
Q1 2022
Shares 58,773 Value ($000) $7,252 Avg Close $102.15 Range $87.54 - $119.36
Q4 2021
Shares 40,611 Value ($000) $3,944 Avg Close $91.08 Range $82.73 - $97.95
Q3 2021
Shares 37,171 Value ($000) $3,387 Avg Close $79.74 Range $72.56 - $88.16
Q2 2021
Shares 43,231 Value ($000) $3,894 Avg Close $90.14 Range $80.84 - $98.96
Q1 2021
Shares 41,645 Value ($000) $3,697 Avg Close $80.32 Range $68.77 - $90.16
Q4 2020
Shares 38,581 Value ($000) $3,148 Avg Close $68.91 Range $56.02 - $78.45
Q3 2020
Shares 38,444 Value ($000) $2,430 Avg Close $54.23 Range $46.16 - $63.35
Q2 2020
Shares 21,410 Value ($000) $1,148 Avg Close $42.05 Range $30.99 - $55.36
Q1 2020
Shares 36,261 Value ($000) $1,384 Avg Close $51.06 Range $26.40 - $65.18
Q4 2019
Shares 81,410 Value ($000) $5,710 Avg Close $60.78 Range $52.18 - $68.35
Q3 2019
Shares 81,410 Value ($000) $5,333 Avg Close $57.99 Range $50.43 - $64.27
Q2 2019
Shares 166,410 Value ($000) $11,558 Avg Close $59.69 Range $51.40 - $69.93
Q1 2019
Shares 205,491 Value ($000) $13,944 Avg Close $64.77 Range $57.75 - $72.34
Q4 2018
Shares 180,000 Value ($000) $11,910 Avg Close $64.35 Range $53.36 - $76.44
Q3 2018
Shares 298,796 Value ($000) $24,832 Avg Close $86.83 Range $72.82 - $100.10
Q2 2018
Shares 314,942 Value ($000) $33,897 Avg Close $99.34 Range $90.39 - $110.06
Q1 2018
Shares 315,000 Value ($000) $35,012 Avg Close $98.39 Range $86.89 - $107.41
Q4 2017
Shares 252,246 Value ($000) $26,871 Avg Close $81.78 Range $72.56 - $95.02
Q3 2017
Shares 222,246 Value ($000) $18,466 Avg Close $64.66 Range $57.52 - $74.59
Q2 2017
Shares 222,246 Value ($000) $14,714 Avg Close $55.73 Range $52.23 - $59.49
Q1 2017
Shares 247,000 Value ($000) $16,314 Avg Close $55.38 Range $49.25 - $59.68
Q1 2016
Shares 994 Value ($000) $46 Avg Close $39.11 Range $34.33 - $46.52
Q4 2015
Shares 120,831 Value ($000) $6,563 Avg Close $49.75 Range $44.01 - $54.52
Q3 2015
Shares 121,263 Value ($000) $6,292 Avg Close $49.96 Range $42.26 - $59.13
Q2 2015
Shares 470,922 Value ($000) $32,300 Avg Close $62.10 Range $58.06 - $67.58
Q1 2015
Shares 270,922 Value ($000) $19,490 Avg Close $54.56 Range $46.07 - $62.01
Q4 2014
Shares 370,000 Value ($000) $22,603 Avg Close $57.80 Range $45.45 - $73.16
Q3 2014
Shares 370,000 Value ($000) $32,038 Avg Close $76.69 Range $70.51 - $83.52
Q2 2014
Shares 395,000 Value ($000) $33,085 Avg Close $63.36 Range $52.18 - $72.01
Q1 2014
Shares 520,000 Value ($000) $34,414 Avg Close $53.68 Range $48.11 - $58.70
Q4 2013
Shares 260,000 Value ($000) $31,738 Avg Close $47.34 Range $43.59 - $51.55
Q3 2013
Shares 245,000 Value ($000) $25,642 Avg Close $42.90 Range $40.28 - $45.40
Q2 2013
Shares 245,000 Value ($000) $23,620 Avg Close $37.72 Range $32.17 - $41.82