Chao Albert 4

What Happened

• Albert Chao, Executive Chairman and Director of Westlake Corp (WLK), had 6,193 performance shares vest on Feb 19, 2026. To cover tax obligations, 2,501 of the vested shares were withheld/sold (proceeds ~$235,347). On Feb 20, 2026 he was also granted two derivative awards: 54,763 stock-option-type awards and 14,945 restricted stock units (RSUs).

Key Details

• Transaction dates: Feb 19–20, 2026.
• Vested shares: 6,193 PSUs vested (per award granted Feb 17, 2023).
• Tax withholding/sale: 2,501 shares disposed to satisfy taxes; reported proceeds $235,347; sale prices ranged $94.10–$94.38 (weighted average reporting provided).
• Grants on Feb 20, 2026: 54,763 derivative option awards and 14,945 RSUs (derivative awards shown as acquired at $0).
• Option and RSU terms (from filing footnotes): the option awards are exercisable in three installments (33%, 33%, 34% on Feb 20 of 2027, 2028, 2029); each RSU converts to one share and all RSUs vest Feb 20, 2029.
• Shares owned after transaction: not specified in the provided filing excerpt.
• Filing timeliness: filing date Feb 23, 2026 (no late-filing flag noted in the provided data).

Context

• The 2,501-share disposal was a tax-withholding event (routine when PSUs vest), not an open-market sale intended as a directional bet. The derivative grants are forward-looking compensation (stock options with staged exercise dates and RSUs that vest in 2029) and do not represent immediate purchases of stock.