Buesinger Robert F. 4

What Happened

• Robert F. Buesinger, Executive Vice President and PEM Segment Head at Westlake Corp (WLK), sold 4,000 shares on March 27, 2026. The shares were disposed at $115.25 each for a total of $461,000. The Form 4 lists the transaction as a sale (code S), reported as an open-market or private sale.

Key Details

• Transaction date and price: 2026-03-27 — 4,000 shares at $115.25 per share (total ~$461,000)
• Transaction type: Sale (SEC code S); described as open-market or private sale on the Form 4
• Shares owned after transaction: Not disclosed in the provided filing
• Notable footnotes: None reported (no 10b5-1 plan, tax-withholding, or gift notation shown)
• Filing timeliness: Form 4 was filed 2026-03-31 and appears to meet the SEC’s two-business-day reporting window

Context

• Sales by executives are common and do not necessarily indicate negative company outlook; they can be for diversification, personal liquidity, or routine reasons. Purchases generally carry more weight as a signal of insider confidence. This filing documents a straightforward sale and contains no option exercises or awards.