Twist Bioscience Corp
TWST
109 insider filings · Latest: Oct 9, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 21, 2026 | Sep 23 8:08 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 348 | $165.49 | $57.6K | 73,303(D) | View → |
| Sep 21, 2026 | Sep 23 8:07 PM | Paula GreenSVP of Human Resources | Sale | 294 | $165.49 | $48.7K | 116,720(D) | View → |
| Sep 21, 2026 | Sep 23 8:07 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 1,687 | $165.49 | $279.2K | 618,902(D) | View → |
| Sep 21, 2026 | Sep 21 8:54 PM | Leproust Emily M. | Proposed Sale | 1,687 | $165.49 | $279.2K | — | View → |
| Sep 21, 2026 | Sep 21 8:53 PM | Green Paula | Proposed Sale | 294 | $165.49 | $48.7K | — | View → |
| Sep 21, 2026 | Sep 21 8:52 PM | Cho Dennis | Proposed Sale | 348 | $165.49 | $57.6K | — | View → |
| Sep 17, 2026 | Sep 21 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 356,546 | $157.99 | $56.3M | 620,589(D) | View → |
| Sep 17, 2026 | Sep 17 8:44 PM | Leproust Emily M. | Proposed Sale | 295,037 | $151.43 | $44.7M | — | View → |
| Sep 17, 2026 | Sep 17 8:34 PM | Leproust Emily M. | Proposed Sale | 61,509 | $151.43 | $9.3M | — | View → |
| Sep 8, 2026 | Sep 10 8:00 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 412 | $122.62 | $50.5K | 73,651(D) | View → |
| Sep 8, 2026 | Sep 10 8:00 PM | Paula GreenSVP of Human Resources | Sale | 907 | $122.62 | $111.2K | 117,014(D) | View → |
| Sep 8, 2026 | Sep 10 8:00 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 2,302 | $122.62 | $282.3K | 768,427(D) | View → |
| Sep 8, 2026 | Sep 10 8:00 PM | Robert F. WernerChief Accounting Officer | Sale | 238 | $122.62 | $29.2K | 44,399(D) | View → |
| Sep 8, 2026 | Sep 8 7:17 PM | Leproust Emily M. | Proposed Sale | 2,302 | $122.62 | $282.3K | — | View → |
| Sep 8, 2026 | Sep 8 7:15 PM | Green Paula | Proposed Sale | 907 | $122.62 | $111.2K | — | View → |
| Sep 8, 2026 | Sep 8 7:12 PM | WERNER ROBERT F. | Proposed Sale | 238 | $122.62 | $29.2K | — | View → |
| Sep 8, 2026 | Sep 8 7:11 PM | Cho Dennis | Proposed Sale | 412 | $122.62 | $50.5K | — | View → |
| Aug 25, 2026 | Aug 27 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 41,570 | $151.98 | $6.3M | 770,729(D) | View → |
| Aug 25, 2026 | Aug 25 9:02 PM | Leproust Emily M. | Proposed Sale | 41,570 | $151.98 | $6.3M | — | View → |
| Aug 21, 2026 | Aug 25 8:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 1,598 | $139.07 | $222.2K | 74,063(D) | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Sep 17, 2026 | Sep 21 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Option Exercise | 208,708 | $26.66 | 0(D) | View → |
| Aug 18, 2026 | Aug 20 8:05 PM | Patrick John FinnPresident and COO | Option Exercise | 23,355 | $67.85 | 0(D) | View → |
| 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 → |