Insider Trading & Ownership of Jean-Marc Gilson

Location: Houston, TX
Summary: The estimated net worth of Jean-Marc Gilson is at least $1,245,021 dollars as of 29 Aug 2025. Jean-Marc Gilson is the President and CEO of WESTLAKE CORP and owns shares of WESTLAKE CORP (WLK) stock worth about $994.2K. Jean-Marc Gilson is the President and CEO, Director of Westlake Chemical Partners LP and owns shares of Westlake Chemical Partners LP (WLKP) stock worth about $250.8K.
Signature: Jean-Marc Gilson by J. Feng POA
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Ownership of Jean-Marc Gilson

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
WLK	WESTLAKE CORP	President and CEO	$994,197			28 Feb 2025
WLKP	Westlake Chemical Partners LP	President and CEO, Director	$250,824	+$163,659	+188%	27 Aug 2025

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.