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Westlake Chemical Corp (WLK)  
$73.63 0.77 (1.03%) as of 4:30 Mon 12/15


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  Company Roster

Total Insiders  : 43  
Total Direct Shares :
48,723,953
Total Indirect Shares :
559,077,570
 
% Held by Insiders:
38.15%
 
41 other people own 
 $97,462,264 Ttwfgp Llc
 $102,713,850 Ttwf Lp
 $3,387,368,546  
 
Filer's Name Relation Direct Date   Direct Shares Indirect Date Indirect Shares
   Cregg Roger A 2025-12-10 1,339 2025-12-10 0
   Szwejbka Scott Thomas 2025-10-02 12,817 0
   Chao James 2025-08-28 39,741 2023-11-30 93,405,554
   Chao David Tsung-Hung 2025-08-09 8,912 2025-08-09 19,423
   Bowers Kimberly S. 2025-08-09 11,653 2021-05-15 0
   Northcutt R Bruce 2025-08-09 21,183 2014-08-23 0
   Chao Catherine T. 2025-08-09 5,580 2025-08-09 19,423
   Graff Michael J 2025-08-09 21,142 2014-08-23 0
   Sheets Jeffrey Wayne 2025-08-09 12,759 2019-01-05 0
   Sabat Carolyn Chao 2025-08-09 3,580 2023-05-11 93,405,554
   Mccollum Mark A 2025-08-09 9,656 2019-05-18 0
   Buesinger Robert F. 2025-05-27 34,932 2025-05-27 0
   Chao John Tsung-Chen 2025-03-05 7,038 2021-08-14 93,405,554
   Janssens Thomas J. 2025-02-21 17,127 0
   Chao Albert 2025-02-21 586,885 2023-08-30 93,405,554
   Holy Jeffrey Adam 2025-02-21 4,448 0
   Ederington L. Benjamin 2025-02-21 76,259 2015-09-30 0
   Bender Mark Steven 2025-02-21 56,968 2005-09-09 0
   Haas Marius 2024-08-11 11,631 2019-01-05 0
   Zoeller Johnathan Stevan 2024-03-21 4,416 2021-02-25 0
   Kearns Roger L. COO and EVP, PEM 2023-02-17 45,785 0
   Jenkins Dorothy C Director, 10% Owner 2022-08-13 73,778 2022-08-13 93,405,554
   Kenner Andrew SVP, Operations 2022-02-18 20,362 2009-02-13 0
   Teel Lawrence E. EVP and Special Advisor to CEO 2021-02-25 4,903 2013-02-28 0
   Ttwfgp Llc 10% Owner 2020-03-27 1,395,000 2020-03-27 92,010,554
   Mangieri George J VP & Chief Accounting Officer 2020-02-18 4,671 2004-08-16 0
   Lukens Max L Director 2019-08-17 9,122 2013-08-01 200
   Riley H John Jr Director 2019-03-19 22,652 2008-08-15 0
   Blakely Robert T Director 2018-08-21 10,989 2005-09-09 0
   Mattina Michael J. Sr. VP, Polyethylene 2017-02-15 6,506 0
   Bates Simon VP, Building Products 2016-09-09 14,930 2016-09-01 0
   Taylor Jeffrey L Sr VP, Polyethylene 2015-05-26 20,206 2004-08-16 0
   Hansen David R Sr VP Adminstration 2015-02-18 25,807 2004-08-16 0
   Wallace Stephen VP, General Counsel, Secretary 2013-08-01 25,163 2013-08-01 200
   Condon Donald Marion Jr Sr VP, Corp Bus Dev 2013-03-13 13,106 2008-02-19 0
   Barnett E William Director 2012-11-30 20,311 2006-08-21 0
   Morse Wayne D Sr VP, Vinyls 2010-03-11 26,009 2004-08-16 0
   Wilder Warren W Senior Vice President 2008-03-17 24,085 2004-08-16 0
   Whitaker Gilbert R Jr Director 2006-08-21 1,612 2005-09-09 0
   Gibbons John D Senior Vice President & CFO 2006-05-15 1,548 2006-05-15 0
   Ttwf Lp 10% Owner 2006-05-02 46,005,277 0
   Dreessen Ruth I Senior Vice President and CFO, Director 2005-09-09 2,965 2004-08-16 0
   Keng Tai Li Vice President and Treasurer 2004-08-16 1,100 2004-08-16 0
43 Records found