Twist Bioscience Corp
TWST
83 insider filings · Latest: Aug 12, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| May 21, 2026 | May 26 8:05 PM | Patrick John FinnPresident and COO | Sale | 4,160 | $53.26 | $221.5K | 274,804(D) | View → |
| May 21, 2026 | May 26 8:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 1,642 | $53.26 | $87.4K | 134,299(D) | View → |
| May 21, 2026 | May 26 8:05 PM | Robert F. WernerChief Accounting Officer | Sale | 688 | $53.26 | $36.6K | 48,986(D) | View → |
| May 21, 2026 | May 26 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 6,888 | $53.26 | $366.8K | 846,872(D) | View → |
| May 21, 2026 | May 26 8:05 PM | Adam LaponisChief Financial Officer | Sale | 2,019 | $53.26 | $107.5K | 116,675(D) | View → |
| May 26, 2026 | May 26 7:41 PM | WERNER ROBERT F. | Proposed Sale | 800 | $62.48 | $50.0K | — | View → |
| May 26, 2026 | May 26 1:43 PM | Starovasnik Melissa A. | Proposed Sale | 500 | $61.04 | $30.5K | — | View → |
| May 21, 2026 | May 21 8:42 PM | Green Paula | Proposed Sale | 1,399 | $53.26 | $74.5K | — | View → |
| May 21, 2026 | May 21 8:33 PM | Laponis Adam | Proposed Sale | 2,019 | $53.26 | $107.5K | — | View → |
| May 21, 2026 | May 21 8:30 PM | Leproust Emily M. | Proposed Sale | 6,888 | $53.26 | $366.8K | — | View → |
| May 21, 2026 | May 21 8:26 PM | Cho Dennis | Proposed Sale | 1,642 | $53.26 | $87.4K | — | View → |
| May 21, 2026 | May 21 7:54 PM | WERNER ROBERT F. | Proposed Sale | 688 | $53.26 | $36.6K | — | View → |
| May 21, 2026 | May 21 7:31 PM | Finn Patrick John | Proposed Sale | 4,160 | $53.26 | $221.5K | — | View → |
| May 12, 2026 | May 14 8:05 PM | Jan JohannessenDirector | Sale | 12,000 | $56.12 | $673.4K | 17,754(D) | View → |
| May 8, 2026 | May 12 8:05 PM | Robert F. WernerChief Accounting Officer | Sale | 4,961 | $56.88 | $282.2K | 49,674(D) | View → |
| May 12, 2026 | May 12 1:48 PM | JOHANNESSEN JAN | Proposed Sale | 12,000 | $56.12 | $673.4K | — | View → |
| May 8, 2026 | May 8 4:25 PM | WERNER ROBERT F. | Proposed Sale | 4,961 | $56.88 | $282.2K | — | View → |
| May 4, 2026 | May 6 8:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 1,962 | $57.15 | $112.1K | 135,941(D) | View → |
| May 4, 2026 | May 6 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 5,127 | $57.15 | $293.0K | 853,760(D) | View → |
| May 4, 2026 | May 6 8:05 PM | Patrick John FinnPresident and COO | Sale | 2,844 | $57.15 | $162.5K | 278,964(D) | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Aug 12, 2026 | Aug 14 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 19,952 | $26.66 | 133,269(D) | View → |
| Aug 10, 2026 | Aug 12 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 113,318 | $26.66 | 153,221(D) | View → |
| Aug 7, 2026 | Aug 11 8:05 PM | Robert ChessDirector | Option Exercise | 18,417 | $11.89 | 0(D) | View → |
| 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 → |