Insider Transactions Reported by 25 Insiders of WESTLAKE CORP

Symbol
WLK on NYSE
Location
Houston, TX

Insiders trading volume in the past year

WESTLAKE CORP executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Dorothy C. Jenkins Director, 10%+ Owner $12,071,920,935 12 Aug 2022
Albert Chao Executive Chairman, Director $61,857,724 -$3,004,373 -4.6% 19 Feb 2026
L. Benjamin Ederington EVP, Legal & External Affairs $8,181,618 19 Feb 2026
James Chao Senior Chairman, Director $6,045,857 19 Feb 2026
Roger L. Kearns COO and EVP, PEM $5,882,456 17 Feb 2023
Robert F. Buesinger EVP, PEM Segment Head $5,478,705 +$1,717 +0.03% 19 Feb 2026
Mark Steven Bender Evp & Cfo $3,258,913 -$1,756,997 -35% 27 Feb 2026
Andrew Kenner SVP, Operations $2,915,982 18 Feb 2022
David Tsung-Hung Chao Director $2,230,530 08 Aug 2025
Scott Thomas Szwejbka SVP, HIP Segment Head $2,224,849 19 Feb 2026
Thomas J. Janssens SVP, Ops - PEM & Corp Logistic $2,108,330 20 Feb 2025
Chao Catherine T. Director $1,968,235 08 Aug 2025
Marius Haas Director $1,843,514 09 Aug 2024
R. Bruce Northcutt Director $1,667,525 08 Aug 2025
Michael J. Graff Director $1,664,298 08 Aug 2025
Jeffrey Wayne Sheets Director $1,004,388 08 Aug 2025
Jean-Marc Gilson President and CEO $994,197 20 Feb 2026
Kimberly S. Lubel Director $917,324 08 Aug 2025
John Tsung-Chen Chao Director $843,846 19 Feb 2026
Mark A. McCollum Director $760,120 08 Aug 2025
Johnathan Stevan Zoeller VP and CAO $664,895 21 Mar 2024
Jeffrey Adam Holy VP and CAO $584,418 19 Feb 2026
Carolyn Chao Sabat Director $281,817 08 Aug 2025
Roger A. Cregg Through Power Director $256,939 10 Dec 2025
Bhavesh Patel V Director 20 Feb 2026

Recent Insider Transactions by Companies or Individuals for WESTLAKE CORP

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Mark Steven Bender WLK Common Stock Sale -28.2% $1,756,997 $100.92 -17,409 44,433 27 Feb 2026 Direct
Mark Steven Bender WLK Common Stock Disposed to Issuer -17% -12,693 61,842 27 Feb 2026 Direct
Mark Steven Bender WLK Common Stock Options Exercise 20.5% 12,693 74,535 27 Feb 2026 Direct
Mark Steven Bender WLK Employee Option (right to buy) Options Exercise -100% -12,693 0 27 Feb 2026 Direct
Bhavesh Patel V WLK Restricted Stock Units Award 1,852 1,852 20 Feb 2026 Direct
Scott Thomas Szwejbka WLK Common Stock Tax liability -0.66% -91 13,773 20 Feb 2026 Direct
Scott Thomas Szwejbka WLK Restricted Stock Units Award 3,983 3,983 20 Feb 2026 Direct
Scott Thomas Szwejbka WLK Employee Option (right to buy) Award 14,595 14,595 20 Feb 2026 Direct
Jeffrey Adam Holy WLK Common Stock Tax liability -1.56% -81 5,124 20 Feb 2026 Direct
Jeffrey Adam Holy WLK Restricted Stock Units Award 3,739 2,540 20 Feb 2026 Direct
Jeffrey Adam Holy WLK Employee Option (right to buy) Award 4,394 4,394 20 Feb 2026 Direct
Jean-Marc Gilson WLK Restricted Stock Units Award 29,784 29,784 20 Feb 2026 Direct
Jean-Marc Gilson WLK Employee Option (right to buy) Award 109,139 109,139 20 Feb 2026 Direct
L. Benjamin Ederington WLK Common Stock Tax liability -0.44% -357 80,158 20 Feb 2026 Direct
L. Benjamin Ederington WLK Restricted Stock Units Award 7,002 7,002 20 Feb 2026 Direct
L. Benjamin Ederington WLK Employee Option (right to buy) Award 25,656 25,656 20 Feb 2026 Direct
Robert F. Buesinger WLK Common Stock Tax liability -0.84% -326 38,482 20 Feb 2026 Direct
Robert F. Buesinger WLK Restricted Stock Units Award 5,281 5,281 20 Feb 2026 Direct
Robert F. Buesinger WLK Employee Option (right to buy) Award 19,351 19,351 20 Feb 2026 Direct
Mark Steven Bender WLK Common Stock Tax liability -0.71% -445 61,842 20 Feb 2026 Direct
Mark Steven Bender WLK Restricted Stock Units Award 7,747 7,747 20 Feb 2026 Direct
Mark Steven Bender WLK Employee Option (right to buy) Award 28,389 28,389 20 Feb 2026 Direct
John Tsung-Chen Chao WLK Common Stock Tax liability -1.14% -91 7,888 20 Feb 2026 Direct
John Tsung-Chen Chao WLK Restricted Stock Units Award 3,538 2,434 20 Feb 2026 Direct
John Tsung-Chen Chao WLK Employee Option (right to buy) Award 4,044 4,044 20 Feb 2026 Direct
Albert Chao WLK Common Stock Tax liability -0.39% -2,501 642,880 20 Feb 2026 Direct
Albert Chao WLK Restricted Stock Units Award 14,945 14,945 20 Feb 2026 Direct
Albert Chao WLK Employee Option (right to buy) Award 54,763 54,763 20 Feb 2026 Direct
James Chao WLK Common Stock Tax liability -3.06% -1,569 49,774 20 Feb 2026 Direct
James Chao WLK Restricted Stock Units Award 7,472 7,472 20 Feb 2026 Direct
James Chao WLK Employee Option (right to buy) Award 27,382 27,382 20 Feb 2026 Direct
Scott Thomas Szwejbka WLK Common Stock Award 2.7% 365 13,864 19 Feb 2026 Direct
Jeffrey Adam Holy WLK Common Stock Award 5.34% 264 5,205 19 Feb 2026 Direct
L. Benjamin Ederington WLK Common Stock Award 1.8% 1,425 80,515 19 Feb 2026 Direct
Robert F. Buesinger WLK Common Stock Award 3.47% 1,301 38,808 19 Feb 2026 Direct
Mark Steven Bender WLK Common Stock Award 2.94% 1,777 62,287 19 Feb 2026 Direct
John Tsung-Chen Chao WLK Common Stock Award 2.74% 213 7,979 19 Feb 2026 Direct
Albert Chao WLK Common Stock Award 0.97% 6,193 645,381 19 Feb 2026 Direct
James Chao WLK Common Stock Award 8.18% 3,884 51,343 19 Feb 2026 Direct
Scott Thomas Szwejbka WLK Common Stock Tax liability -2.14% -295 13,499 18 Feb 2026 Direct
Jeffrey Adam Holy WLK Common Stock Tax liability -4.13% -213 4,941 18 Feb 2026 Direct
L. Benjamin Ederington WLK Common Stock Tax liability -1.22% -978 79,090 18 Feb 2026 Direct
James Chao WLK Common Stock Tax liability -5.31% -2,664 47,459 18 Feb 2026 Direct
John Tsung-Chen Chao WLK Common Stock Tax liability -3.02% -242 7,766 18 Feb 2026 Direct
Albert Chao WLK Common Stock Tax liability -0.79% -5,089 639,188 18 Feb 2026 Direct
Robert F. Buesinger WLK Common Stock Tax liability -2.35% -903 37,507 18 Feb 2026 Direct
Mark Steven Bender WLK Common Stock Tax liability -1.96% -1,209 60,510 18 Feb 2026 Direct
Scott Thomas Szwejbka WLK Common Stock Options Exercise 7.62% 977 13,794 17 Feb 2026 Direct
Scott Thomas Szwejbka WLK Restricted Stock Units Options Exercise -100% -977 0 17 Feb 2026 Direct
Jeffrey Adam Holy WLK Common Stock Options Exercise 15.9% 706 5,154 17 Feb 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.