CHESS ROBERT
SEC CIK 1227886 · EDGAR
BoughtSold
Most active insiders at TWST, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Leproust Emily M. | CEO, Dir | — | $92.09M |
| 2 | Finn Patrick John | Pres, COO | — | $17.48M |
| 3 | Cho Dennis | See Remarks | — | $7.13M |
| 4 | Green Paula | SVP of Human Resources | — | $5.67M |
| 5 | Laponis Adam | CFO | — | $2.65M |
| 6 | CHESS ROBERT | Dir | — | $2.62M |
| 7 | WERNER ROBERT F. | CAO | — | $1.29M |
| 8 | JOHANNESSEN JAN | Dir | — | $953.3K |
| 9 | Starovasnik Melissa A. | Dir | — | $282.4K |
| 10 | BLAKE KATRYN | Dir | — | $275.3K |
Transactions 35
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-11 16:05 | 2026-08-07 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | M - OptEx | $11.89 | +18.4K | 39.5K | +87% | +$219.0K |
| DT | 2026-08-11 16:05 | 2026-08-07 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale+OE | $110.89 | -18.4K | 21.1K | -47% | -$2.04M |
| D | 2026-03-19 | 2026-03-17 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | M - OptEx | $11.89 | +10.0K | 31.1K | +47% | +$118.9K |
| D | 2026-03-19 | 2026-03-17 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale+OE | $47.00 | -10.0K | 21.1K | -32% | -$470.0K |
| 2026-02-18 | 2026-02-13 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $48.26 | -2,184 | 21.1K | -9% | -$105.4K | |
| 2026-02-09 | 2026-02-05 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | A - Grant | $0.00 | +5,095 | 23.3K | +28% | $0 | |
| 2025-02-11 | 2025-02-07 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $53.14 | -2,940 | 18.2K | -14% | -$156.2K | |
| 2025-02-07 | 2025-02-05 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | A - Grant | $0.00 | +4,472 | 21.1K | +27% | $0 | |
| 2025-01-10 | 2025-01-07 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $50.00 | -5,000 | 16.6K | -23% | -$250.0K | |
| DM | 2024-12-30 | 2024-12-05 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale+OE | $51.85 | -3,504 | 22.4K | -14% | -$181.7K |
| D | 2024-12-30 | 2024-12-05 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | M - OptEx | $8.82 | +3,504 | 25.1K | +16% | +$30.9K |
| DT | 2024-11-13 | 2024-11-11 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | M - OptEx | $8.82 | +3,600 | 25.2K | +17% | +$31.8K |
| DMT | 2024-11-13 | 2024-11-11 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale+OE | $47.26 | -3,600 | 22.9K | -14% | -$170.1K |
| T | 2024-06-14 | 2024-06-14 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | S - Sale | $1.20 | -19.5K | 255.3K | -7% | -$23.4K |
| 2024-02-09 | 2024-02-06 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | A - Grant | $0.00 | +5,815 | 68.3K | +9% | $0 | |
| 2024-02-09 | 2024-02-08 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $34.98 | -4,110 | 64.2K | -6% | -$143.8K | |
| D | 2023-09-20 | 2022-09-22 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | S - Sale | $0.67 | -10.2K | 274.8K | -4% | -$6,834 |
| 2023-02-09 | 2023-02-07 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | A - Grant | $0.00 | +8,212 | 62.5K | +15% | $0 | |
| 2022-09-26 | 2022-09-22 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | S - Sale | $3.19 | -5,100 | 228.2K | -2% | -$16.3K | |
| D | 2022-09-20 | 2022-09-16 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | A - Grant | $0.00 | +10.2K | 233.3K | +5% | $0 |
| 2022-02-10 | 2022-02-08 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | A - Grant | $0.00 | +3,491 | 54.3K | +7% | $0 | |
| 2022-02-08 | 2022-02-04 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $58.88 | -253 | 50.8K | -0.5% | -$14.9K | |
| 2021-11-03 | 2021-11-01 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $120.15 | -4,000 | 51.0K | -7% | -$480.6K | |
| 2021-10-25 | 2021-10-21 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $120.15 | -3,700 | 55.0K | -6% | -$444.6K | |
| 2021-10-21 | 2021-10-19 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $120.00 | -300 | 58.7K | -0.5% | -$36.0K | |
| D | 2021-09-24 | 2021-09-22 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | A - Grant | $0.00 | +10.2K | 284.5K | +4% | $0 |
| D | 2021-09-24 | 2021-09-22 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | S - Sale | $17.94 | -4,600 | 279.9K | -2% | -$82.5K |
| 2021-09-14 | 2021-09-10 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $120.23 | -4,000 | 59.0K | -6% | -$480.9K | |
| DM | 2021-09-10 | 2021-09-08+ | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | S - Sale+OE | $16.01 | -18.3K | 274.3K | -6% | -$292.7K |
| DM | 2021-09-10 | 2021-09-08+ | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | M - OptEx | $13.80 | +18.3K | 282.3K | +7% | +$252.3K |
| MI | 2021-08-26 | 2021-08-24 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | G - Gift | $0.00 | +6,300 | 2,100 | New | $0 |
| 2021-08-26 | 2021-08-24 | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | G - Gift | $0.00 | -6,300 | 274.3K | -2% | $0 | |
| DM | 2021-07-22 | 2021-07-20+ | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | M - OptEx | $13.80 | +5,721 | 284.1K | +2% | +$78.9K |
| DM | 2021-07-22 | 2021-07-20+ | NKTR | NEKTAR THERAPEUTICS | CHESS ROBERT | Dir | S - Sale+OE | $16.81 | -5,721 | 280.6K | -2% | -$96.1K |
| M | 2021-07-14 | 2021-07-12 | TWST | Twist Bioscience Corp | CHESS ROBERT | Dir | S - Sale | $125.91 | -4,000 | 66.4K | -6% | -$503.6K |
Purchase Sale Sale after option exercise All abbreviations