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 21, 2026 | Aug 25 8:05 PM | Patrick John FinnPresident and COO | Sale | 4,046 | $139.07 | $562.7K | 210,802(D) | View → |
| Aug 21, 2026 | Aug 25 8:05 PM | Paula GreenSVP of Human Resources | Sale | 1,360 | $139.07 | $189.1K | 117,921(D) | View → |
| Aug 21, 2026 | Aug 25 8:05 PM | Adam LaponisChief Financial Officer | Sale | 1,965 | $139.07 | $273.3K | 108,633(D) | View → |
| Aug 21, 2026 | Aug 25 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 6,639 | $139.07 | $923.3K | 812,299(D) | View → |
| Aug 24, 2026 | Aug 25 8:05 PM | Robert F. WernerChief Accounting Officer | Sale | 854 | $140.77 | $120.2K | 44,637(D) | View → |
| Aug 21, 2026 | Aug 25 8:05 PM | Robert F. WernerChief Accounting Officer | Sale | 669 | $139.07 | $93.0K | 45,491(D) | View → |
| Aug 24, 2026 | Aug 24 7:23 PM | WERNER ROBERT F. | Proposed Sale | 854 | $140.77 | $120.2K | — | View → |
| Aug 19, 2026 | Aug 21 8:05 PM | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 14,205 | $129.75 | $1.8M | 75,661(D) | View → |
| Aug 21, 2026 | Aug 21 8:02 PM | Leproust Emily M. | Proposed Sale | 6,639 | $139.07 | $923.3K | — | View → |
| Aug 21, 2026 | Aug 21 7:51 PM | Green Paula | Proposed Sale | 1,360 | $139.07 | $189.1K | — | View → |
| Aug 21, 2026 | Aug 21 7:49 PM | Laponis Adam | Proposed Sale | 1,965 | $139.07 | $273.3K | — | View → |
| Aug 21, 2026 | Aug 21 7:39 PM | Cho Dennis | Proposed Sale | 1,598 | $139.07 | $222.2K | — | View → |
| Aug 21, 2026 | Aug 21 7:24 PM | WERNER ROBERT F. | Proposed Sale | 669 | $139.07 | $93.0K | — | View → |
| Aug 21, 2026 | Aug 21 7:20 PM | Finn Patrick John | Proposed Sale | 4,046 | $139.07 | $562.7K | — | View → |
| Aug 18, 2026 | Aug 20 8:05 PM | Patrick John FinnPresident and COO | Sale | 78,355 | $117.64 | $9.2M | 214,678(D) | View → |
| Aug 19, 2026 | Aug 19 6:25 PM | Cho Dennis | Proposed Sale | 14,205 | $129.75 | $1.8M | — | View → |
| Aug 18, 2026 | Aug 18 2:42 PM | Finn Patrick John | Proposed Sale | 78,355 | $121.61 | $9.5M | — | View → |
| Aug 12, 2026 | Aug 14 8:12 PM | Katryn BlakeDirector | Sale | 2,240 | $122.88 | $275.3K | 17,208(D) | View → |
| Aug 12, 2026 | Aug 14 8:05 PM | Emily M. LeproustDirector, Chief Executive Officer | Sale | 19,952 | $125.08 | $2.5M | 818,938(D) | View → |
| Aug 12, 2026 | Aug 12 8:29 PM | Leproust Emily M. | Proposed Sale | 19,952 | $125.08 | $2.5M | — | 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 → |