Buesinger Robert F.
SEC CIK 1488587 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| WLK | WESTLAKE CORP | EVP, Vinyl Products | 34.5K | $7,751 | $7.08M | 46 | 2022-02-15 | 2026-03-27 |
Most active insiders at WLK, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Chao Albert | Executive COB, Dir | — | $6.13M |
| 2 | Bender Mark Steven | EVP, CFO | — | $3.60M |
| 3 | Buesinger Robert F. | EVP, PEM Segment Head | — | $461.0K |
| 4 | Szwejbka Scott Thomas | SVP, HIP Segment Head | — | — |
| 5 | Holy Jeffrey Adam | VP, CAO | — | — |
| 6 | Chao Catherine T. | Dir | — | — |
| 7 | Sabat Carolyn Chao | Dir | — | — |
| 8 | Chao John Tsung-chen | Dir | — | — |
| 9 | Chao David Tsung-Hung | Dir | — | — |
| 10 | Ederington L. Benjamin | EVP, Legal, External Affairs | — | — |
Transactions 46
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-31 | 2026-03-27 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, PEM Segment Head | S - Sale | $115.25 | -4,000 | 34.5K | -10% | -$461.0K | |
| D | 2026-02-23 | 2026-02-19 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, PEM Segment Head | A - Grant | $0.00 | +1,301 | 38.8K | +3% | $0 |
| D | 2026-02-23 | 2026-02-20 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, PEM Segment Head | F - Tax | $94.10 | -326 | 38.5K | -0.8% | -$30.7K |
| D | 2026-02-19 | 2026-02-17 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, PEM Segment Head | M - OptEx | $0.00 | +3,478 | 38.4K | +10% | $0 |
| D | 2026-02-19 | 2026-02-18 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, PEM Segment Head | F - Tax | $98.95 | -903 | 37.5K | -2% | -$89.4K |
| I | 2025-06-09 | 2025-04-22 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, PEM Segment Head | P - Purchase | $93.39 | +83 | 83 | New | +$7,751 |
| I | 2025-06-09 | 2025-05-27 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, PEM Segment Head | S - Sale | $72.70 | -83 | 0 | -100% | -$6,034 |
| D | 2025-02-24 | 2025-02-20 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | A - Grant | $0.00 | +6,839 | 37.7K | +22% | $0 |
| D | 2025-02-24 | 2025-02-21 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | F - Tax | $110.54 | -2,738 | 34.9K | -7% | -$302.7K |
| DM | 2025-02-20 | 2025-02-19 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | F - Tax | $111.51 | -4,015 | 31.0K | -11% | -$447.7K |
| D | 2025-02-20 | 2025-02-18 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $0.00 | +12.9K | 34.8K | +59% | $0 |
| D | 2024-08-15 | 2024-08-14 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | F - Tax | $145.44 | -2,772 | 21.9K | -11% | -$403.2K |
| D | 2024-08-15 | 2024-08-13 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $0.00 | +7,051 | 24.7K | +40% | $0 |
| 2024-05-13 | 2024-05-09 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale | $158.50 | -3,500 | 17.6K | -17% | -$554.8K | |
| D | 2024-05-08 | 2024-05-07 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $122.65 | +3,133 | 24.3K | +15% | +$384.3K |
| D | 2024-05-08 | 2024-05-07 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | D - Sale to Iss | $157.50 | -3,133 | 21.1K | -13% | -$493.4K |
| 2024-03-18 | 2024-03-15 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale | $144.50 | -3,878 | 21.1K | -15% | -$560.4K | |
| 2024-03-14 | 2024-03-13 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale | $144.50 | -122 | 25.0K | -0.5% | -$17.6K | |
| D | 2024-03-11 | 2024-03-07 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | D - Sale to Iss | $142.55 | -12.7K | 25.1K | -34% | -$1.81M |
| DM | 2024-03-11 | 2024-03-07 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $99.60 | +12.7K | 30.1K | +72% | +$1.26M |
| D | 2024-02-21 | 2024-02-16 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | A - Grant | $0.00 | +8,592 | 25.3K | +51% | $0 |
| D | 2024-02-21 | 2024-02-19 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $0.00 | +4,283 | 29.6K | +17% | $0 |
| DM | 2024-02-21 | 2024-02-20 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | F - Tax | $130.59 | -4,485 | 25.5K | -15% | -$585.7K |
| 2023-11-17 | 2023-11-15 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale | $130.50 | -4,215 | 16.8K | -20% | -$550.1K | |
| D | 2023-08-31 | 2023-08-30 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $86.54 | +4,857 | 25.8K | +23% | +$420.3K |
| D | 2023-08-31 | 2023-08-30 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | D - Sale to Iss | $134.47 | -4,857 | 21.0K | -19% | -$653.1K |
| D | 2023-08-30 | 2023-08-29 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $65.81 | +8,100 | 29.1K | +39% | +$533.1K |
| D | 2023-08-30 | 2023-08-29 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | D - Sale to Iss | $133.83 | -8,100 | 21.0K | -28% | -$1.08M |
| MA | 2023-03-15 | 2023-03-13 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | F - Tax | $104.37 | -4,752 | 21.0K | -18% | -$496.0K |
| A | 2023-03-15 | 2023-02-17 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | A - Grant | $0.00 | +11.3K | 25.7K | +78% | $0 |
| 2023-02-17 | 2023-02-17 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | A - Grant | $0.00 | +11.3K | 25.7K | +78% | $0 | |
| DM | 2023-02-16 | 2023-02-15 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | F - Tax | $121.87 | -1,417 | 14.4K | -9% | -$172.7K |
| D | 2023-02-16 | 2023-02-14 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | — | +5,632 | 15.8K | +55% | — |
| 2022-09-01 | 2022-08-31 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale | $98.94 | -1,000 | 10.2K | -9% | -$98.9K | |
| 2022-08-24 | 2022-08-23 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | G - Gift | $0.00 | -572 | 11.2K | -5% | $0 | |
| DM | 2022-05-31 | 2022-05-27 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $100.61 | +14.4K | 21.4K | +208% | +$1.45M |
| D | 2022-05-31 | 2022-05-27 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale+OE | $129.47 | -14.4K | 11.8K | -55% | -$1.87M |
| 2022-03-16 | 2022-03-15 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | G - Gift | $0.00 | -500 | 11.8K | -4% | $0 | |
| A | 2022-03-15 | 2022-02-18 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | A - Grant | $0.00 | +6,446 | 17.6K | +58% | $0 |
| MA | 2022-03-15 | 2022-03-14 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | F - Tax | $118.51 | -2,559 | 12.3K | -17% | -$303.3K |
| DM | 2022-03-14 | 2022-03-10 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | M - OptEx | $74.94 | +22.6K | 29.5K | +323% | +$1.69M |
| D | 2022-03-14 | 2022-03-10 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale+OE | $117.61 | -22.6K | 14.8K | -60% | -$2.65M |
| 2022-03-10 | 2022-03-09 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | S - Sale | $115.55 | -2,730 | 14.8K | -16% | -$315.5K | |
| 2022-02-22 | 2022-02-18 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, HIP, IT, Digital | A - Grant | $0.00 | +6,446 | 17.6K | +58% | $0 | |
| D | 2022-02-17 | 2022-02-16 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, Vinyl Products | F - Tax | $104.96 | -963 | 11.1K | -8% | -$101.1K |
| D | 2022-02-17 | 2022-02-15 | WLK | WESTLAKE CORP | Buesinger Robert F. | EVP, Vinyl Products | M - OptEx | — | +3,869 | 12.1K | +47% | — |
Purchase Sale Sale after option exercise All abbreviations