Insiders / Buesinger Robert F.
Buesinger Robert F.
CIK 1488587personinsider
Companies
1
First seen
Feb 19, 2026
Last activity
Mar 31, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Westlake Corp · WLK | 34,482 | — |
All securities held
3 positions · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Westlake Corp | Common Stock | 34,482 |
| Westlake Corp | Employee Option (right to buy)Derivative | 19,351 |
| Westlake Corp | Restricted Stock UnitsDerivative | 5,281 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Mar 27, 2026 | Sell | WLK Westlake Corp Common Stock | $461.0K | -4K -10.39% | 34,482 0.03% of shares | medium |
| Feb 18, 2026 | Other | WLK Westlake Corp Common Stock | $89.4K | -903 -2.35% | 37,507 0.03% of shares | low |
| Feb 20, 2026 | Other | WLK Westlake Corp Common Stock | $30.7K | -326 -0.84% | 38,482 0.03% of shares | low |
| Feb 19, 2026 | Grant | WLK Westlake Corp Common Stock | $0 | +1K +3.47% | 38,808 0.03% of shares | low |
| Feb 17, 2026 | Exercise | WLK Westlake Corp Common Stock | $0 | +3K +9.96% | 38,410 0.03% of shares | low |
| Feb 20, 2026 | Grant | WLK Westlake Corp Restricted Stock Units | — | +5K | 5,281 <0.01% of shares | low |
| Feb 20, 2026 | Grant | WLK Westlake Corp Employee Option (right to buy) | — | +19K | 19,351 0.02% of shares | low |
| Feb 17, 2026 | Exercise | WLK Westlake Corp Restricted Stock Units | — | -3K -100.00% | 0 0.00% of shares | low |