13 insiders reported 244 Form 4 transactions for Twist Bioscience Corp (TWST) over the past 18 months (most recent 2026-08-21). Recent activity: Cho Dennis (See Remarks) Sell 14,205 shares, Finn Patrick John (President and COO) Buy 23,355 shares, Finn Patrick John (President and COO) Sell 33,354 shares, Finn Patrick John (President and COO) Sell 10,420 shares, Finn Patrick John (President and COO) Sell 8,868 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | Cho Dennis | See Remarks | Sell | 14,205 | $1.8M |
| 2026-08-20 | Finn Patrick John | President and COO | Buy | 23,355 | $1.6M |
| 2026-08-20 | Finn Patrick John | President and COO | Sell | 33,354 | $3.9M |
| 2026-08-20 | Finn Patrick John | President and COO | Sell | 10,420 | $1.2M |
| 2026-08-20 | Finn Patrick John | President and COO | Sell | 8,868 | $1.0M |
| 2026-08-20 | Finn Patrick John | President and COO | Sell | 4,500 | $535,680 |
| 2026-08-20 | Finn Patrick John | President and COO | Sell | 12,917 | $1.5M |
| 2026-08-20 | Finn Patrick John | President and COO | Sell | 6,296 | $761,860 |
| 2026-08-20 | Finn Patrick John | President and COO | Sell | 2,000 | $245,162 |
| 2026-08-14 | BLAKE KATRYN | Director | Sell | 2,240 | $275,251 |
| 2026-08-14 | Leproust Emily M. | Chief Executive Officer | Buy | 19,952 | $531,920 |
| 2026-08-14 | Leproust Emily M. | Chief Executive Officer | Sell | 19,952 | $2.5M |
| 2026-08-12 | Leproust Emily M. | Chief Executive Officer | Sell | 113,318 | $14.2M |
| 2026-08-12 | Leproust Emily M. | Chief Executive Officer | Buy | 113,318 | $3.0M |
| 2026-08-11 | CHESS ROBERT | Director | Buy | 18,417 | $218,978 |
| 2026-08-11 | CHESS ROBERT | Director | Sell | 18,417 | $2.0M |
| 2026-08-07 | Cho Dennis | See Remarks | Sell | 14,205 | $1.6M |
| 2026-08-05 | Leproust Emily M. | Chief Executive Officer | Sell | 5,101 | $435,223 |
| 2026-08-05 | Green Paula | SVP of Human Resources | Sell | 1,133 | $96,669 |
| 2026-08-05 | Finn Patrick John | President and COO | Sell | 2,888 | $246,408 |
| 2026-08-05 | Cho Dennis | See Remarks | Sell | 1,070 | $91,294 |
| 2026-08-05 | WERNER ROBERT F. | Chief Accounting Officer | Sell | 167 | $14,249 |
| 2026-07-27 | Finn Patrick John | President and COO | Sell | 2,238 | $210,133 |
| 2026-07-13 | Laponis Adam | Chief Financial Officer | Sell | 2,399 | $226,307 |
| 2026-06-26 | Leproust Emily M. | Chief Executive Officer | Sell | 18,880 | $1.8M |
Source: SEC Form 4 filings · as of 2026-08-21