Twist Bioscience Corp
TWST
71 insider filings · Latest: Jun 25, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Mar 6, 2025 | Mar 6 8:15 PM | Cho Dennis | Proposed Sale | 277 | $40.91 | $11.3K | — | View → |
| Mar 6, 2025 | Mar 6 8:14 PM | WERNER ROBERT F. | Proposed Sale | 241 | $40.91 | $9.9K | — | View → |
| Feb 24, 2025 | Feb 24 8:20 PM | WERNER ROBERT F. | Proposed Sale | 916 | $41.71 | $38.2K | — | View → |
| Feb 21, 2025 | Feb 21 8:18 PM | Leproust Emily M. | Proposed Sale | 2,790 | $44.18 | $123.3K | — | View → |
| Feb 21, 2025 | Feb 21 8:13 PM | Cho Dennis | Proposed Sale | 526 | $44.18 | $23.2K | — | View → |
| Feb 21, 2025 | Feb 21 8:13 PM | WERNER ROBERT F. | Proposed Sale | 267 | $44.18 | $11.8K | — | View → |
| Feb 21, 2025 | Feb 21 8:13 PM | Green Paula | Proposed Sale | 618 | $44.18 | $27.3K | — | View → |
| Feb 21, 2025 | Feb 21 8:10 PM | Finn Patrick John | Proposed Sale | 1,839 | $44.18 | $81.2K | — | View → |
| Feb 21, 2025 | Feb 21 8:09 PM | Laponis Adam | Proposed Sale | 918 | $44.18 | $40.6K | — | View → |
| Feb 7, 2025 | Feb 7 8:16 PM | Chess Robert Bruce | Proposed Sale | 2,940 | $53.13 | $156.2K | — | View → |
| Feb 3, 2025 | Feb 3 8:24 PM | WERNER ROBERT F. | Proposed Sale | 185 | $49.35 | $9.1K | — | View → |
| Feb 3, 2025 | Feb 3 8:23 PM | Leproust Emily M. | Proposed Sale | 5,200 | $49.35 | $256.6K | — | View → |
| Feb 3, 2025 | Feb 3 8:18 PM | Green Paula | Proposed Sale | 1,259 | $49.35 | $62.1K | — | View → |
| Feb 3, 2025 | Feb 3 8:18 PM | Finn Patrick John | Proposed Sale | 2,845 | $49.35 | $140.4K | — | View → |
| Feb 3, 2025 | Feb 3 8:08 PM | Cho Dennis | Proposed Sale | 806 | $49.35 | $39.8K | — | View → |
| Jan 23, 2025 | Jan 23 8:18 PM | Finn Patrick John | Proposed Sale | 2,422 | $50.17 | $121.5K | — | View → |
| Jan 10, 2025 | Jan 10 8:15 PM | Laponis Adam | Proposed Sale | 5,886 | $43.26 | $254.6K | — | View → |
| Jan 7, 2025 | Jan 7 5:09 PM | Chess Robert Bruce | Proposed Sale | 5,000 | $50.00 | $250.0K | — | View → |
| Jan 3, 2025 | Jan 3 9:17 PM | Leproust Emily M. | Proposed Sale | 546 | $45.59 | $24.9K | — | View → |
| Jan 3, 2025 | Jan 3 8:55 PM | Cho Dennis | Proposed Sale | 144 | $45.59 | $6.6K | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Jun 15, 2026 | Jun 17 8:05 PM | Paula GreenSVP of Human Resources | Option Exercise | 26,137 | $23.33 | 0(D) | View → |
| May 28, 2026 | Jun 1 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 16,470 | $8.82 | 75,439(D) | View → |
| May 27, 2026 | May 28 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 25,017 | $8.82 | 91,909(D) | View → |
| May 26, 2026 | May 28 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 24,282 | $8.82 | 116,926(D) | View → |
| May 12, 2026 | May 14 8:05 PM | Jan JohannessenDirector | Option Exercise | 12,000 | $14.00 | 10,304(D) | View → |
| Apr 22, 2026 | Apr 23 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 8,061 | $8.82 | 141,208(D) | View → |
| Apr 21, 2026 | Apr 23 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 1,610 | $8.82 | 149,269(D) | View → |
| Mar 17, 2026 | Mar 19 8:05 PM | Robert ChessDirector | Option Exercise | 10,000 | $11.89 | 18,417(D) | View → |
| Feb 17, 2026 | Feb 19 9:05 PM | Patrick John FinnPresident and COO | Option Exercise | 50,505 | $26.66 | 0(D) | View → |
| Feb 13, 2026 | Feb 17 9:25 PM | Patrick John FinnPresident and COO | Option Exercise | 1,212 | $26.66 | 18,052(D) | View → |
| Feb 12, 2026 | Feb 17 9:25 PM | Patrick John FinnPresident and COO | Option Exercise | 2,500 | $26.66 | 18,705(D) | View → |