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 |
|---|---|---|---|---|---|---|---|---|
| Feb 13, 2026 | Feb 13 9:42 PM | Finn Patrick John | Proposed Sale | 1,750 | $50.04 | $87.6K | — | View → |
| Feb 11, 2026 | Feb 13 9:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 5,000 | $49.93 | $249.7K | 138,581(D) | View → |
| Feb 13, 2026 | Feb 13 8:17 PM | CHESS ROBERT | Proposed Sale | 2,184 | $48.26 | $105.4K | — | View → |
| Feb 12, 2026 | Feb 12 10:00 PM | Finn Patrick John | Proposed Sale | 3,500 | $50.23 | $175.8K | — | View → |
| Feb 12, 2026 | Feb 12 6:07 PM | Laponis Adam | Proposed Sale | 7,000 | $50.00 | $350.0K | — | View → |
| Feb 11, 2026 | Feb 11 5:03 PM | Cho Dennis | Proposed Sale | 5,000 | $49.93 | $249.7K | — | View → |
| Feb 6, 2026 | Feb 9 9:26 PM | Jan JohannessenDirector | Sale | 2,200 | $47.91 | $105.4K | 17,754(D) | View → |
| Feb 6, 2026 | Feb 6 8:16 PM | JOHANNESSEN JAN | Proposed Sale | 2,200 | $47.91 | $105.4K | — | View → |
| Feb 3, 2026 | Feb 5 9:05 PM | Patrick John FinnPresident and COO | Sale | 2,705 | $46.58 | $126.0K | 307,788(D) | View → |
| Feb 3, 2026 | Feb 5 9:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 1,099 | $46.58 | $51.2K | 143,581(D) | View → |
| Feb 3, 2026 | Feb 5 9:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 5,001 | $46.58 | $232.9K | 869,312(D) | View → |
| Feb 4, 2026 | Feb 5 9:05 PM | Robert F. WernerChief Accounting Officer | Sale | 7,000 | $45.65 | $319.5K | 58,738(D) | View → |
| Feb 3, 2026 | Feb 5 9:05 PM | Robert F. WernerChief Accounting Officer | Sale | 175 | $46.58 | $8.2K | 65,738(D) | View → |
| Feb 3, 2026 | Feb 5 9:05 PM | Paula GreenSVP of Human Resources | Sale | 1,194 | $46.58 | $55.6K | 165,445(D) | View → |
| Feb 4, 2026 | Feb 4 7:29 PM | WERNER ROBERT F. | Proposed Sale | 7,000 | $45.65 | $319.5K | — | View → |
| Feb 3, 2026 | Feb 3 8:44 PM | Finn Patrick John | Proposed Sale | 2,705 | $46.58 | $126.0K | — | View → |
| Feb 3, 2026 | Feb 3 8:26 PM | WERNER ROBERT F. | Proposed Sale | 175 | $46.58 | $8.2K | — | View → |
| Feb 3, 2026 | Feb 3 8:23 PM | Green Paula | Proposed Sale | 1,194 | $46.58 | $55.6K | — | View → |
| Feb 3, 2026 | Feb 3 8:20 PM | Cho Dennis | Proposed Sale | 1,099 | $46.58 | $51.2K | — | View → |
| Feb 3, 2026 | Feb 3 8:19 PM | Leproust Emily M. | Proposed Sale | 5,001 | $46.58 | $232.9K | — | 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 → |