Gilson Jean-Marc has filed 20 insider transactions across 2 companies since July 2024.
Most recent transaction: a grant/award of 29784 shares of WESTLAKE CORP ($WLK) on February 20, 2026.
Activity breakdown: 14 open-market purchases and 0 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 20, 2026 | WESTLAKE CORP | $WLK | Gilson Jean-Marc | President and CEO | A | Restricted Stock Units | 29784 | $0.00 | 29,784.0000 | 128,265,950 | 9999.99% | 0.02% |
| Feb. 20, 2026 | WESTLAKE CORP | $WLK | Gilson Jean-Marc | President and CEO | A | Employee Option (right to buy) | 109139 | $0.00 | 109,139.0000 | 128,265,950 | 9999.99% | 0.09% |
| Aug. 27, 2025 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 95 | $21.25 | 11,803.4850 | 35,238,556 | 0.81% | 0.00% |
| Aug. 21, 2025 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 1250 | $22.02 | 11,708.1950 | 35,238,556 | 11.95% | 0.00% |
| Aug. 28, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 320 | $22.95 | 3,427.0000 | 0 | 10.30% | 0.00% |
| Nov. 27, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 85 | $23.57 | 4,331.9600 | 0 | 2.00% | 0.00% |
| Feb. 25, 2025 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 83 | $24.75 | 4,414.4670 | 0 | 1.90% | 0.00% |
| May 29, 2025 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 94 | $22.20 | 4,508.1950 | 35,238,556 | 2.12% | 0.00% |
| Aug. 15, 2025 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 4700 | $21.84 | 9,208.1950 | 35,238,556 | 104.25% | 0.01% |
| Aug. 20, 2025 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 1250 | $21.86 | 10,458.1950 | 35,238,556 | 13.57% | 0.00% |
| Feb. 28, 2025 | WESTLAKE CORP | $WLK | Gilson Jean-Marc | President and CEO | A | Restricted Stock Units | 8994 | $0.00 | 8,994.0000 | 129,206,922 | 9999.99% | 0.01% |
| Feb. 21, 2025 | WESTLAKE CORP | $WLK | Gilson Jean-Marc | President and CEO | A | Restricted Stock Units | 8749 | $0.00 | 8,749.0000 | 129,206,922 | 9999.99% | 0.01% |
| Feb. 21, 2025 | WESTLAKE CORP | $WLK | Gilson Jean-Marc | President and CEO | A | Employee Option (right to buy) | 26391 | $0.00 | 26,391.0000 | 129,206,922 | 9999.99% | 0.02% |
| Aug. 29, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 1000 | $22.83 | 3,927.0000 | 0 | 34.16% | 0.00% |
| Aug. 28, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 500 | $22.94 | 2,927.0000 | 0 | 20.60% | 0.00% |
| Aug. 26, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 500 | $22.85 | 1,427.0000 | 0 | 53.94% | 0.00% |
| Aug. 27, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 1000 | $22.95 | 2,427.0000 | 0 | 70.08% | 0.00% |
| Aug. 23, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 500 | $22.88 | 927.0000 | 0 | 117.10% | 0.00% |
| Aug. 22, 2024 | Westlake Chemical Partners LP | $WLKP | Gilson Jean-Marc | President and CEO | P | Common Units | 427 | $22.60 | 427.0000 | 0 | 9999.99% | 0.00% |
| July 15, 2024 | WESTLAKE CORP | $WLK | Gilson Jean-Marc | President and CEO | A | Restricted Stock Units | 20401 | $0.00 | 20,401.0000 | 128,598,441 | 9999.99% | 0.02% |