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 |
|---|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | Aug 12 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 113,318 | $125.16 | $14.2M | 818,938(D) | View → |
| Aug 12, 2026 | Aug 12 8:00 PM | BLAKE KATRYN | Proposed Sale | 2,240 | $122.88 | $275.3K | — | View → |
| Aug 7, 2026 | Aug 11 8:05 PM | Robert ChessDirector | Sale | 18,417 | $110.89 | $2.0M | 21,084(D) | View → |
| Aug 10, 2026 | Aug 10 10:49 PM | Leproust Emily M. | Proposed Sale | 113,318 | $125.16 | $14.2M | — | View → |
| Aug 5, 2026 | Aug 7 8:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 14,205 | $109.75 | $1.6M | 89,866(D) | View → |
| Aug 7, 2026 | Aug 7 3:04 PM | CHESS ROBERT | Proposed Sale | 18,417 | $110.89 | $2.0M | — | View → |
| Aug 3, 2026 | Aug 5 8:05 PM | Patrick John FinnPresident and COO | Sale | 2,888 | $85.32 | $246.4K | 269,678(D) | View → |
| Aug 3, 2026 | Aug 5 8:05 PM | Paula GreenSVP of Human Resources | Sale | 1,133 | $85.32 | $96.7K | 119,281(D) | View → |
| Aug 3, 2026 | Aug 5 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 5,101 | $85.32 | $435.2K | 818,938(D) | View → |
| Aug 3, 2026 | Aug 5 8:05 PM | Robert F. WernerChief Accounting Officer | Sale | 167 | $85.32 | $14.2K | 46,160(D) | View → |
| Aug 3, 2026 | Aug 5 8:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 1,070 | $85.32 | $91.3K | 104,071(D) | View → |
| Aug 5, 2026 | Aug 5 5:50 PM | Cho Dennis | Proposed Sale | 14,205 | $109.75 | $1.6M | — | View → |
| Aug 3, 2026 | Aug 3 8:08 PM | Leproust Emily M. | Proposed Sale | 5,101 | $85.32 | $435.2K | — | View → |
| Aug 3, 2026 | Aug 3 7:53 PM | Green Paula | Proposed Sale | 1,133 | $85.32 | $96.7K | — | View → |
| Aug 3, 2026 | Aug 3 7:49 PM | Cho Dennis | Proposed Sale | 1,070 | $85.32 | $91.3K | — | View → |
| Aug 3, 2026 | Aug 3 7:39 PM | Finn Patrick John | Proposed Sale | 2,888 | $85.32 | $246.4K | — | View → |
| Aug 3, 2026 | Aug 3 7:33 PM | WERNER ROBERT F. | Proposed Sale | 167 | $85.32 | $14.2K | — | View → |
| Jul 23, 2026 | Jul 27 8:05 PM | Patrick John FinnPresident and COO | Sale | 2,238 | $93.89 | $210.1K | 272,566(D) | View → |
| Jul 23, 2026 | Jul 23 7:14 PM | Finn Patrick John | Proposed Sale | 2,238 | $93.89 | $210.1K | — | View → |
| Jul 9, 2026 | Jul 13 8:05 PM | Adam LaponisChief Financial Officer | Sale | 2,399 | $94.33 | $226.3K | 110,276(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 → |