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Westlake Corp director Bhavesh V. Patel filed an initial Form 3, which is a baseline disclosure of his status as a director and any reportable holdings when he became subject to insider reporting rules. This filing does not list any buy or sell transactions.
Westlake Corporation announced that Executive Vice President and Chief Financial Officer M. Steven Bender plans to retire, with his departure effective when a successor is appointed. This signals an upcoming leadership transition in the company’s finance organization.
The board of directors was expanded to fourteen members and elected Bhavesh V. “Bob” Patel and President and CEO Jean-Marc Gilson as directors effective February 20, 2026. Patel will serve as a Class III director through the 2028 annual meeting and is expected to join multiple board committees. He will receive restricted stock units with a grant date fair value of $175,000 that vest on February 20, 2027. Gilson will serve as a Class I director through the 2026 annual meeting and will not receive additional compensation for his board service. The company also furnished a press release describing these board appointments.
Westlake Corp SVP Scott Thomas Szwejbka reported several equity compensation transactions. On February 20, 2026, he received an employee stock option grant for 14,595 shares at an exercise price of $0.00 per share and 3,983 restricted stock units, both held directly.
On February 19, 2026, 365 shares of common stock were acquired following the vesting of performance stock units granted on February 17, 2023, after performance criteria were certified. Also on February 20, 2026, 91 shares of common stock were disposed of at $94.10 per share to satisfy tax obligations from the PSU vesting, leaving 13,773 common shares held directly.
Westlake Corp vice president and chief accounting officer Jeffrey Adam Holy reported multiple equity awards and a small tax-related share disposition. On February 20, 2026, he was granted employee stock options covering 4,394 shares and restricted stock units (RSUs) for 1,199 and 2,540 shares, all at a grant price of $0.0000 per share.
According to the filing, the stock options vest in three installments of 33%, 33%, and 34% on February 20, 2027, February 20, 2028, and February 20, 2029, and all RSUs will vest on February 20, 2029. He also acquired 264 shares of common stock on February 19, 2026 upon performance stock unit vesting, while 81 shares were withheld at $94.10 per share to cover tax obligations.
Westlake Corp President and CEO Jean-Marc Gilson reported equity awards consisting of stock options and restricted stock units. He was granted 109,139 employee stock options at an exercise price of $0.00 and 29,784 restricted stock units, each RSU representing the right to receive one share of common stock. The options become exercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, while all RSUs vest on February 20, 2029.
Westlake Corp executive L. Benjamin Ederington reported equity awards and related tax withholding transactions. On February 20, 2026, he received 25,656 employee stock options at an exercise price of $0.0000 per share. According to the disclosure, these options become exercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively.
He was also granted 7,002 restricted stock units, each representing a contingent right to receive one share of common stock, which are scheduled to vest on February 20, 2029. In addition, 1,425 shares of common stock were acquired on February 19, 2026 upon the vesting of performance stock units, following the compensation committee’s confirmation that performance criteria were satisfied. To cover tax obligations from this vesting, 357 shares of common stock were disposed of at a weighted-average price of $94.102 per share. After these transactions, he directly owned 80,158 common shares.
Westlake Corp executive Robert F. Buesinger reported multiple equity compensation transactions. On February 20, 2026, he received an employee stock option grant for 19,351 options at an exercise price of $0.00 per share, which become exercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029. He also received 5,281 restricted stock units, each representing one share of common stock, which will fully vest on February 20, 2029.
Separately, on February 19, 2026, 1,301 shares of common stock vested upon satisfaction of performance criteria under performance stock units granted in 2023. To satisfy tax obligations from this vesting, 326 shares of common stock were disposed of at a weighted average price of $94.101 per share in multiple transactions between $94.10 and $94.29, leaving him with 38,482 common shares held directly.
Westlake Corp executive vice president and CFO Mark Steven Bender reported multiple equity compensation transactions. He received a grant of 28,389 employee stock options and 7,747 restricted stock units on February 20, 2026, both held directly.
On February 19, 2026, 1,777 shares of common stock vested after performance criteria were certified for previously granted performance stock units. To cover tax obligations from this vesting, 445 common shares were disposed of at a weighted average price of about $94.10, leaving the CFO with 61,842 common shares directly owned. The stock options vest in three annual installments starting in 2027, and all RSUs vest on February 20, 2029.
Westlake Corp director John Tsung-chen Chao reported multiple equity award transactions. On February 20, 2026, he received an employee stock option for 4,044 shares at an exercise price of $0.00 and two restricted stock unit (RSU) grants covering 1,104 and 2,434 RSUs, each RSU representing one share of common stock, with all RSUs vesting on February 20, 2029. On February 19, 2026, 213 shares of common stock vested upon satisfaction of performance criteria for previously granted performance stock units, and he acquired these shares as a grant. Also on February 20, 2026, 91 shares of common stock were disposed of at $94.10 per share to cover tax obligations related to PSU vesting, leaving him with 7,888 common shares directly owned.
Westlake Corp Executive Chairman Albert Chao reported several equity compensation transactions. He received a grant of 54,763 employee stock options on common shares and 14,945 restricted stock units, both at a grant price of $0.00 per unit. The options become exercisable in three installments of 33%, 33%, and 34% on February 20, 2027, February 20, 2028, and February 20, 2029, respectively, and all RSUs vest on February 20, 2029. He also acquired 6,193 shares of common stock upon vesting of performance stock units tied to performance criteria. To cover tax obligations from this vesting, 2,501 common shares were disposed of at a weighted average price of about $94.10 per share, in multiple transactions within a disclosed price range.