14 insiders reported 221 Form 4 transactions for Twist Bioscience Corp (TWST) over the past 18 months (most recent 2026-06-26). Recent activity: Cho Dennis (See Remarks) Sell 14,205 shares, Leproust Emily M. (Chief Executive Officer) Sell 18,880 shares, Leproust Emily M. (Chief Executive Officer) Sell 1,688 shares, Green Paula (SVP of Human Resources) Sell 291 shares, Cho Dennis (See Remarks) Sell 346 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-26 | Cho Dennis | See Remarks | Sell | 14,205 | $1.3M |
| 2026-06-26 | Leproust Emily M. | Chief Executive Officer | Sell | 18,880 | $1.8M |
| 2026-06-24 | Leproust Emily M. | Chief Executive Officer | Sell | 1,688 | $147,400 |
| 2026-06-24 | Green Paula | SVP of Human Resources | Sell | 291 | $25,411 |
| 2026-06-24 | Cho Dennis | See Remarks | Sell | 346 | $30,214 |
| 2026-06-17 | Green Paula | SVP of Human Resources | Sell | 2,028 | $166,632 |
| 2026-06-17 | Green Paula | SVP of Human Resources | Buy | 26,137 | $609,776 |
| 2026-06-17 | Green Paula | SVP of Human Resources | Sell | 24,109 | $2.0M |
| 2026-06-10 | WERNER ROBERT F. | Chief Accounting Officer | Sell | 1,127 | $77,842 |
| 2026-06-10 | Leproust Emily M. | Chief Executive Officer | Sell | 2,265 | $158,197 |
| 2026-06-10 | Green Paula | SVP of Human Resources | Sell | 884 | $61,742 |
| 2026-06-10 | Cho Dennis | See Remarks | Sell | 402 | $28,077 |
| 2026-06-10 | WERNER ROBERT F. | Chief Accounting Officer | Sell | 232 | $16,204 |
| 2026-06-10 | WERNER ROBERT F. | Chief Accounting Officer | Sell | 500 | $0 |
| 2026-06-02 | Laponis Adam | Chief Financial Officer | Sell | 4,000 | $280,000 |
| 2026-06-02 | Cho Dennis | See Remarks | Sell | 14,205 | $990,799 |
| 2026-06-01 | Starovasnik Melissa A. | Director | Sell | 2,500 | $170,000 |
| 2026-06-01 | Leproust Emily M. | Chief Executive Officer | Buy | 16,470 | $145,265 |
| 2026-06-01 | Leproust Emily M. | Chief Executive Officer | Sell | 1,482 | $96,813 |
| 2026-06-01 | Leproust Emily M. | Chief Executive Officer | Sell | 900 | $60,163 |
| 2026-06-01 | Leproust Emily M. | Chief Executive Officer | Sell | 7,623 | $517,989 |
| 2026-06-01 | Leproust Emily M. | Chief Executive Officer | Sell | 6,465 | $443,590 |
| 2026-05-14 | JOHANNESSEN JAN | Director | Buy | 12,000 | $168,000 |
| 2026-05-14 | JOHANNESSEN JAN | Director | Sell | 12,000 | $673,440 |
| 2026-05-12 | WERNER ROBERT F. | Chief Accounting Officer | Sell | 4,961 | $282,187 |
Source: SEC Form 4 filings · as of 2026-06-26