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 |
|---|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | Oct 13 8:05 PM | Adam LaponisChief Financial Officer | Sale | 2,462 | $156.30 | $384.8K | 98,114(D) | View → |
| Oct 9, 2026 | Oct 9 7:12 PM | Laponis Adam | Proposed Sale | 2,462 | $156.30 | $384.8K | — | View → |
| Oct 5, 2026 | Oct 7 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 4,548 | $202.15 | $919.4K | 562,760(D) | View → |
| Oct 5, 2026 | Oct 5 8:39 PM | Leproust Emily M. | Proposed Sale | 4,548 | $202.15 | $919.4K | — | View → |
| Oct 2, 2026 | Oct 5 8:05 PM | Adam LaponisChief Financial Officer | Sale | 8,057 | $188.88 | $1.5M | 100,576(D) | View → |
| Oct 2, 2026 | Oct 5 8:05 PM | Paula GreenSVP of Human Resources | Sale | 10,088 | $188.88 | $1.9M | 106,632(D) | View → |
| Oct 2, 2026 | Oct 5 8:05 PM | Patrick John FinnPresident and COO | Sale | 25,714 | $188.88 | $4.9M | 185,088(D) | View → |
| Oct 2, 2026 | Oct 5 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 45,736 | $188.88 | $8.6M | 567,308(D) | View → |
| Oct 1, 2026 | Oct 5 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 655 | $200.00 | $131.0K | 613,044(D) | View → |
| Oct 2, 2026 | Oct 5 8:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 9,514 | $188.88 | $1.8M | 63,789(D) | View → |
| Oct 2, 2026 | Oct 5 8:05 PM | Robert F. WernerChief Accounting Officer | Sale | 1,482 | $188.88 | $279.9K | 42,917(D) | View → |
| Oct 2, 2026 | Oct 2 8:50 PM | Green Paula | Proposed Sale | 10,088 | $188.88 | $1.9M | — | View → |
| Oct 2, 2026 | Oct 2 8:50 PM | WERNER ROBERT F. | Proposed Sale | 1,482 | $188.88 | $279.9K | — | View → |
| Oct 2, 2026 | Oct 2 8:41 PM | Cho Dennis | Proposed Sale | 9,514 | $188.88 | $1.8M | — | View → |
| Oct 2, 2026 | Oct 2 8:38 PM | Leproust Emily M. | Proposed Sale | 45,736 | $188.88 | $8.6M | — | View → |
| Oct 2, 2026 | Oct 2 8:34 PM | Laponis Adam | Proposed Sale | 8,057 | $188.88 | $1.5M | — | View → |
| Oct 2, 2026 | Oct 2 8:17 PM | Finn Patrick John | Proposed Sale | 25,714 | $188.88 | $4.9M | — | View → |
| Oct 1, 2026 | Oct 1 8:27 PM | Leproust Emily M. | Proposed Sale | 655 | $200.00 | $131.0K | — | View → |
| Sep 24, 2026 | Sep 25 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 5,203 | $177.38 | $922.9K | 613,699(D) | View → |
| Sep 24, 2026 | Sep 24 9:45 PM | Leproust Emily M. | Proposed Sale | 5,203 | $177.38 | $922.9K | — | View → |
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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 → |