WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

Engineers Gate Manager LP's Holding History (CIK: 0001620220)

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

Q4 2025

Shares 289,255 Value ($000) $21,388 Avg Close $70.79 Range $55.84 - $82.75

Q2 2025

Shares 351,011 Value ($000) $26,652 Avg Close $80.28 Range $67.52 - $99.92

Q1 2025

Shares 2,737 Value ($000) $274 Avg Close $108.01 Range $95.27 - $116.71

Q4 2024

Shares 2,599 Value ($000) $298 Avg Close $126.38 Range $109.67 - $146.31

Q3 2024

Shares 22,649 Value ($000) $3,404 Avg Close $139.25 Range $125.61 - $148.72

Q2 2024

Shares 7,776 Value ($000) $1,126 Avg Close $148.16 Range $138.77 - $156.68

Q3 2023

Shares 3,588 Value ($000) $447 Avg Close $122.44 Range $108.80 - $131.81

Q3 2022

Shares 4,500 Value ($000) $391 Avg Close $90.33 Range $76.70 - $104.08

Q2 2022

Shares 11,240 Value ($000) $1,102 Avg Close $115.03 Range $86.41 - $132.48

Q1 2022

Shares 3,589 Value ($000) $443 Avg Close $102.15 Range $87.54 - $119.36

Q4 2021

Shares 8,210 Value ($000) $797 Avg Close $91.08 Range $82.73 - $97.95

Q3 2021

Shares 4,930 Value ($000) $449 Avg Close $79.74 Range $72.56 - $88.16

Q2 2021

Shares 23,299 Value ($000) $2,099 Avg Close $90.14 Range $80.84 - $98.96

Q1 2021

Shares 4,200 Value ($000) $373 Avg Close $80.32 Range $68.77 - $90.16

Q4 2020

Shares 2,830 Value ($000) $231 Avg Close $68.91 Range $56.02 - $78.45

Q3 2020

Shares 7,703 Value ($000) $487 Avg Close $54.23 Range $46.16 - $63.35

Q3 2018

Shares 27,855 Value ($000) $2,315 Avg Close $86.83 Range $72.82 - $100.10

Q1 2018

Shares 12,530 Value ($000) $1,393 Avg Close $98.39 Range $86.89 - $107.41

Q4 2017

Shares 44,000 Value ($000) $4,687 Avg Close $81.78 Range $72.56 - $95.02

Q2 2017

Shares 3,306 Value ($000) $219 Avg Close $55.73 Range $52.23 - $59.49

Q1 2016

Shares 87,221 Value ($000) $4,038 Avg Close $39.11 Range $34.33 - $46.52

Q4 2015

Shares 11,547 Value ($000) $627 Avg Close $49.75 Range $44.01 - $54.52

Q3 2015

Shares 62,992 Value ($000) $3,269 Avg Close $49.96 Range $42.26 - $59.13

Q2 2015

Shares 7,561 Value ($000) $519 Avg Close $62.10 Range $58.06 - $67.58

Q1 2015

Shares 8,317 Value ($000) $598 Avg Close $54.56 Range $46.07 - $62.01

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	289,255	$21,388	$70.79	$55.84 - $82.75
Q2 2025	351,011	$26,652	$80.28	$67.52 - $99.92
Q1 2025	2,737	$274	$108.01	$95.27 - $116.71
Q4 2024	2,599	$298	$126.38	$109.67 - $146.31
Q3 2024	22,649	$3,404	$139.25	$125.61 - $148.72
Q2 2024	7,776	$1,126	$148.16	$138.77 - $156.68
Q3 2023	3,588	$447	$122.44	$108.80 - $131.81
Q3 2022	4,500	$391	$90.33	$76.70 - $104.08
Q2 2022	11,240	$1,102	$115.03	$86.41 - $132.48
Q1 2022	3,589	$443	$102.15	$87.54 - $119.36
Q4 2021	8,210	$797	$91.08	$82.73 - $97.95
Q3 2021	4,930	$449	$79.74	$72.56 - $88.16
Q2 2021	23,299	$2,099	$90.14	$80.84 - $98.96
Q1 2021	4,200	$373	$80.32	$68.77 - $90.16
Q4 2020	2,830	$231	$68.91	$56.02 - $78.45
Q3 2020	7,703	$487	$54.23	$46.16 - $63.35
Q3 2018	27,855	$2,315	$86.83	$72.82 - $100.10
Q1 2018	12,530	$1,393	$98.39	$86.89 - $107.41
Q4 2017	44,000	$4,687	$81.78	$72.56 - $95.02
Q2 2017	3,306	$219	$55.73	$52.23 - $59.49
Q1 2016	87,221	$4,038	$39.11	$34.33 - $46.52
Q4 2015	11,547	$627	$49.75	$44.01 - $54.52
Q3 2015	62,992	$3,269	$49.96	$42.26 - $59.13
Q2 2015	7,561	$519	$62.10	$58.06 - $67.58
Q1 2015	8,317	$598	$54.56	$46.07 - $62.01