Form 4: Westlake EVP Buesinger Reports Stock Transactions

Westlake Corp's EVP, Robert F. Buesinger, reported the vesting of performance stock units, tax-related share disposition, and new grants of stock options and restricted stock units.

Summary

• Robert F. Buesinger, EVP, PEM Segment Head of Westlake Corp, reported multiple transactions involving common stock and derivative securities.
• On February 19, 2026, 1,301 shares of common stock vested from performance stock units (PSUs) granted on February 17, 2023, following the satisfaction of performance criteria determined by the Compensation Committee.
• On February 20, 2026, 326 shares of common stock were disposed of at a weighted average price of $94.101 to satisfy tax obligations arising from the PSU vesting.
• Following these transactions, beneficial ownership of common stock decreased from 38,808 to 38,482 shares.
• On February 20, 2026, Buesinger was granted 19,351 employee stock options with an exercise price of $94.48, which will vest in three installments (33%, 33%, 34%) on February 20, 2027, 2028, and 2029, respectively, and expire on February 20, 2036.
• Additionally, on February 20, 2026, 5,281 restricted stock units (RSUs) were granted, which are scheduled to vest entirely on February 20, 2029.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a moderately positive signal, reflecting the achievement of performance targets for PSU vesting and the company's continued commitment to incentivizing executive leadership through equity grants, despite a minor tax-related share disposition.

Positives

• The vesting of 1,301 performance stock units indicates that the Compensation Committee determined performance criteria were successfully met.
• The grant of 19,351 employee stock options and 5,281 restricted stock units provides ongoing incentives for executive performance and aligns management interests with shareholder value.

Negatives

• The disposition of 326 shares of common stock to cover tax obligations resulted in a reduction of direct beneficial ownership.

Future Outlook

The reporting person has future vesting events for employee stock options on February 20, 2027, 2028, and 2029, and for restricted stock units on February 20, 2029. Employee options are exercisable until February 20, 2036.

Industry Context

StockSavvy.ai notes that Form 4 filings are standard disclosures for insider transactions and do not typically provide broader industry context. These transactions reflect company-specific executive compensation practices.

Corporate Governance

Stakeholder Impact

• Shareholders: Gain transparency into executive equity ownership and compensation structure, which aligns management incentives with shareholder value.

Next Steps

• First installment of employee stock options vests on February 20, 2027.
• Second installment of employee stock options vests on February 20, 2028.
• Third installment of employee stock options vests on February 20, 2029.
• All restricted stock units vest on February 20, 2029.
• Employee stock options expire on February 20, 2036.

Key Dates

Keywords

Westlake Corp, WLK, Insider Transaction, Form 4, Executive Compensation, Stock Options, Restricted Stock Units, Performance Stock Units, Equity Grant, Beneficial Ownership