Jean-Marc Gilson

CIK: 0002030037

Transaction Breakdown

Open Market Buys (P)9 (60.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)6 (40.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (3)

CTVA

Corteva, Inc.

Director

WLK

WESTLAKE CORP

Officer

WLKP

Westlake Chemical Partners LP

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (15 total)

CTVA
Corteva, Inc.
Apr 28, 2026
Award(A)
Direct
2.4K shares-
WLK
WESTLAKE CORP
Feb 20, 2026
Award(A)
Restricted Stock Units
Direct
29.8K shares-
WLK
WESTLAKE CORP
Feb 20, 2026
Award(A)
Employee Option (right to buy)
Direct
109.1K shares-
WLKP
Westlake Chemical Partners LP
Aug 27, 2025
Purchase(P)
Direct
95 shares at avg. $21.25$2K
WLKP
Westlake Chemical Partners LP
Aug 21, 2025
Purchase(P)
Direct
1.3K shares at avg. $22.02$28K
WLKP
Westlake Chemical Partners LP
Aug 20, 2025
Purchase(P)
Direct
1.3K shares at avg. $21.86$27K
WLKP
Westlake Chemical Partners LP
Aug 15, 2025
Purchase(P)
Direct
4.7K shares at avg. $21.84$103K
WLKP
Westlake Chemical Partners LP
May 29, 2025
Purchase(P)
Direct
94 shares at avg. $22.20$2K
WLK
WESTLAKE CORP
Feb 28, 2025
Award(A)
Restricted Stock Units
Direct
9K shares-
WLKP
Westlake Chemical Partners LP
Feb 25, 2025
Purchase(P)
Direct
83 shares at avg. $24.75$2K
WLK
WESTLAKE CORP
Feb 21, 2025
Award(A)
Restricted Stock Units
Direct
8.7K shares-
WLK
WESTLAKE CORP
Feb 21, 2025
Award(A)
Employee Option (right to buy)
Direct
26.4K shares-
WLKP
Westlake Chemical Partners LP
Nov 27, 2024
Purchase(P)
Direct
85 shares at avg. $23.57$2K
WLKP
Westlake Chemical Partners LP
Aug 29, 2024
Purchase(P)
Direct
1K shares at avg. $22.83$23K
WLKP
Westlake Chemical Partners LP
Aug 28, 2024
Purchase(P)
Direct
320 shares at avg. $22.95$7K

		Type	Shares	Price		Ownership
Apr 28, 2026	CTVA Corteva, Inc.	Award(A)	2,350	-	$0	Direct
Feb 20, 2026	WLK WESTLAKE CORP	Award(A) Restricted Stock Units	29,784	-	-	Direct
Feb 20, 2026	WLK WESTLAKE CORP	Award(A) Employee Option (right to buy)	109,139	-	-	Direct
Aug 27, 2025	WLKP Westlake Chemical Partners LP	Purchase(P)	95	$21.25	$2,025	Direct
Aug 21, 2025	WLKP Westlake Chemical Partners LP	Purchase(P)	1,250	$22.02	$27,530	Direct
Aug 20, 2025	WLKP Westlake Chemical Partners LP	Purchase(P)	1,250	$21.86	$27,329	Direct
Aug 15, 2025	WLKP Westlake Chemical Partners LP	Purchase(P)	4,700	$21.84	$102,653	Direct
May 29, 2025	WLKP Westlake Chemical Partners LP	Purchase(P)	94	$22.20	$2,081	Direct
Feb 28, 2025	WLK WESTLAKE CORP	Award(A) Restricted Stock Units	8,994	-	-	Direct
Feb 25, 2025	WLKP Westlake Chemical Partners LP	Purchase(P)	83	$24.75	$2,042	Direct
Feb 21, 2025	WLK WESTLAKE CORP	Award(A) Restricted Stock Units	8,749	-	-	Direct
Feb 21, 2025	WLK WESTLAKE CORP	Award(A) Employee Option (right to buy)	26,391	-	-	Direct
Nov 27, 2024	WLKP Westlake Chemical Partners LP	Purchase(P)	85	$23.57	$2,002	Direct
Aug 29, 2024	WLKP Westlake Chemical Partners LP	Purchase(P)	1,000	$22.83	$22,830	Direct
Aug 28, 2024	WLKP Westlake Chemical Partners LP	Purchase(P)	320	$22.95	$7,344	Direct

1-15 of 15 transactions

About Gilson Jean-Marc

Gilson Jean-Marc (SEC CIK 0002030037) files insider reports with the SEC as Director of Corteva, Inc. (CTVA), President and CEO of WESTLAKE CORP (WLK) and President and CEO of Westlake Chemical Partners LP (WLKP).

Signal8 holds 8 ownership filings by Gilson Jean-Marc, all Form 4s, filed between Sep 3, 2024 and Apr 30, 2026. Those filings report 15 transactions, from Aug 28, 2024 to Apr 28, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Gilson Jean-Marc's filings is in INDIANAPOLIS, IN.

Recent filings by Gilson Jean-Marc

Apr 28, 2026: Grant or award of CTVA shares (Form 4, code A).
Feb 20, 2026: Grants or awards of WLK derivative securities (2 lines, Form 4, code A).
Aug 27, 2025: Open-market purchase of WLKP shares (Form 4, code P).
Aug 21, 2025: Open-market purchase of WLKP shares (Form 4, code P).
Aug 20, 2025: Open-market purchase of WLKP shares (Form 4, code P).

Other insiders filing for Corteva, Inc. (CTVA)

Sloan Jennifer L., Chief People Officer
NARWOLD KAREN G, Chief Legal Officer
Rasoulpour Reza J., Chief Technology Officer
Ford Ralph H. III, Chief Integrated Ops Officer
Cunningham Brook M., Chief Commercial Officer
Rudolph Jeffrey A., Chief Financial Officer

How to read Form 4 transaction codes