Robert F. Buesinger

Companies

• Westlake CorporationSr. Vice President, Vinyls Apr 7, 2010 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Westlake Corporation WLK34,482 shares²$2.1M at $61.17Mar 27, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 27, 2026Sold 4,000 shares at $115.25 of Westlake Corporation²
• Feb 20, 2026Shares withheld for tax 326 shares at $94.10 of Westlake Corporation³
• Feb 19, 2026Granted 1,301 shares of Westlake Corporation³
• Feb 18, 2026Shares withheld for tax 903 shares at $98.95 of Westlake Corporation⁴
• Feb 17, 2026Exercised options 3,478 shares of Westlake Corporation⁴
• May 27, 2025Sold 83 shares at $72.70 of Westlake Corporation⁵
• Apr 22, 2025Bought 83 shares at $93.39 of Westlake Corporation⁵
• Feb 21, 2025Shares withheld for tax 2,738 shares at $110.54 of Westlake Corporation⁶
• Feb 20, 2025Granted 6,839 shares of Westlake Corporation⁶
• Feb 19, 2025Shares withheld for tax 164 shares at $112.76 of Westlake Corporation⁷
• Feb 19, 2025Shares withheld for tax 3,851 shares at $111.46 of Westlake Corporation⁷
• Feb 18, 2025Exercised options 12,923 shares of Westlake Corporation⁷
• Aug 14, 2024Shares withheld for tax 2,772 shares at $145.44 of Westlake Corporation⁸
• Aug 13, 2024Exercised options 7,051 shares of Westlake Corporation⁸
• May 9, 2024Sold 3,500 shares at $158.50 of Westlake Corporation⁹
• May 7, 2024Returned to company 3,133 shares at $157.50 of Westlake Corporation¹⁰
• May 7, 2024Exercised options 3,133 shares at $122.65 of Westlake Corporation¹⁰
• Mar 15, 2024Sold 3,878 shares at $144.50 of Westlake Corporation¹¹
• Mar 13, 2024Sold 122 shares at $144.50 of Westlake Corporation¹²
• Mar 7, 2024Returned to company 12,670 shares at $142.55 of Westlake Corporation¹³
• Mar 7, 2024Exercised options 7,665 shares at $108.12 of Westlake Corporation¹³
• Mar 7, 2024Exercised options 5,005 shares at $86.54 of Westlake Corporation¹³
• Feb 20, 2024Shares withheld for tax 399 shares at $137.38 of Westlake Corporation¹⁴
• Feb 20, 2024Shares withheld for tax 3 shares at $135.32 of Westlake Corporation¹⁴
• Feb 20, 2024Shares withheld for tax 4,083 shares at $129.92 of Westlake Corporation¹⁴