Jean-Marc Gilson

Companies

• CortevaBoard member Apr 30, 2026 to now¹
• Westlake CorporationChief executive officer Jul 15, 2024 to now²
• Westlake CorporationPresident Jul 15, 2024 to now²
• Westlake Chemical Partners LPBoard member Jul 15, 2024 to now³
• Westlake Chemical Partners LPChief executive officer Jul 15, 2024 to now³
• Westlake Chemical Partners LPPresident Jul 15, 2024 to now³

Holdings

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

Shares held

• WCWestlake Chemical Partners LP WLKP11,803 shares⁴$246.8K at $20.91Aug 27, 2025
• Corteva CTVA2,350 shares⁵$30.1K at $12.82Apr 28, 2026

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

Recent filings

• Apr 28, 2026Granted 2,350 shares of Corteva⁵
• Aug 27, 2025Bought 95 shares at $21.25 of Westlake Chemical Partners LP⁴
• Aug 21, 2025Bought 1,250 shares at $22.02 of Westlake Chemical Partners LP⁶
• Aug 20, 2025Bought 1,250 shares at $21.86 of Westlake Chemical Partners LP⁶
• Aug 15, 2025Bought 4,700 shares at $21.84 of Westlake Chemical Partners LP⁶
• May 29, 2025Bought 94 shares at $22.20 of Westlake Chemical Partners LP⁶
• Feb 25, 2025Bought 83 shares at $24.75 of Westlake Chemical Partners LP⁶
• Nov 27, 2024Bought 85 shares at $23.57 of Westlake Chemical Partners LP⁶
• Aug 29, 2024Bought 1,000 shares at $22.83 of Westlake Chemical Partners LP⁷
• Aug 28, 2024Bought 500 shares at $22.94 of Westlake Chemical Partners LP⁸
• Aug 28, 2024Bought 320 shares at $22.95 of Westlake Chemical Partners LP⁹
• Aug 27, 2024Bought 1,000 shares at $22.95 of Westlake Chemical Partners LP⁸
• Aug 26, 2024Bought 500 shares at $22.85 of Westlake Chemical Partners LP⁸
• Aug 23, 2024Bought 500 shares at $22.88 of Westlake Chemical Partners LP¹⁰
• Aug 22, 2024Bought 427 shares at $22.60 of Westlake Chemical Partners LP¹⁰