Twist Bioscience Corp — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| Green Paula | SVP of Human Resources | Sale | 273 | $34.56 | $9,435 | Dec 22, 2025 |
| Cho Dennis | See Remarks | Sale | 324 | $34.56 | $11,197 | Dec 22, 2025 |
| Leproust Emily M. | Chief Executive Officer | Sale | 1,605 | $34.56 | $55,469 | Dec 22, 2025 |
| Cho Dennis | See Remarks | Sale | 398 | $32.88 | $13,086 | Dec 8, 2025 |
| Leproust Emily M. | Chief Executive Officer | Sale | 2,255 | $32.88 | $74,144 | Dec 8, 2025 |
| Green Paula | SVP of Human Resources | Sale | 877 | $32.88 | $28,836 | Dec 8, 2025 |
| WERNER ROBERT F. | Chief Accounting Officer | Sale | 230 | $32.88 | $7,562 | Dec 8, 2025 |
| WERNER ROBERT F. | Chief Accounting Officer | Sale | 229 | $26.50 | $6,069 | Nov 24, 2025 |
| Cho Dennis | See Remarks | Sale | 757 | $26.50 | $20,061 | Nov 21, 2025 |
| Finn Patrick John | President and COO | Sale | 1,776 | $26.50 | $47,064 | Nov 21, 2025 |
| Green Paula | SVP of Human Resources | Sale | 598 | $26.50 | $15,847 | Nov 21, 2025 |
| Laponis Adam | Chief Financial Officer | Sale | 887 | $26.50 | $23,506 | Nov 21, 2025 |
| Leproust Emily M. | Chief Executive Officer | Sale | 2,663 | $26.50 | $70,570 | Nov 21, 2025 |
| Leproust Emily M. | Chief Executive Officer | Award / Grant | 146,914 | — | — | Nov 18, 2025 |
| Laponis Adam | Chief Financial Officer | Award / Grant | 32,648 | — | — | Nov 18, 2025 |
| Finn Patrick John | President and COO | Award / Grant | 68,740 | — | — | Nov 18, 2025 |
| Cho Dennis | See Remarks | Award / Grant | 25,465 | — | — | Nov 18, 2025 |
| Green Paula | SVP of Human Resources | Award / Grant | 26,200 | — | — | Nov 18, 2025 |
| WERNER ROBERT F. | Chief Accounting Officer | Award / Grant | 16,324 | — | — | Nov 18, 2025 |
| JOHANNESSEN JAN | — | Sale | 7,044 | $24.77 | $174,480 | Nov 18, 2025 |
| Cho Dennis | See Remarks | Sale | 1,019 | $32.08 | $32,690 | Nov 3, 2025 |
| Finn Patrick John | President and COO | Sale | 2,755 | $32.08 | $88,380 | Nov 3, 2025 |
| Green Paula | SVP of Human Resources | Sale | 1,084 | $32.08 | $34,775 | Nov 3, 2025 |
| Leproust Emily M. | Chief Executive Officer | Sale | 4,887 | $32.08 | $156,775 | Nov 3, 2025 |
| WERNER ROBERT F. | Chief Accounting Officer | Sale | 160 | $32.08 | $5,133 | Nov 3, 2025 |
| Cho Dennis | See Remarks | Sale | 6,515 | $31.44 | $204,832 | Oct 30, 2025 |
| Finn Patrick John | President and COO | Sale | 17,606 | $31.44 | $553,533 | Oct 30, 2025 |
| Green Paula | SVP of Human Resources | Sale | 6,920 | $31.44 | $217,565 | Oct 30, 2025 |
| Leproust Emily M. | Chief Executive Officer | Sale | 31,379 | $31.44 | $986,556 | Oct 30, 2025 |
| Laponis Adam | Chief Financial Officer | Sale | 5,517 | $31.44 | $173,454 | Oct 30, 2025 |
| WERNER ROBERT F. | Chief Accounting Officer | Sale | 1,016 | $31.44 | $31,943 | Oct 30, 2025 |
| WERNER ROBERT F. | Chief Accounting Officer | Award / Grant | 5,633 | — | — | Oct 28, 2025 |
| Finn Patrick John | President and COO | Award / Grant | 79,785 | — | — | Oct 28, 2025 |
| Cho Dennis | See Remarks | Award / Grant | 29,518 | — | — | Oct 28, 2025 |
| Green Paula | SVP of Human Resources | Award / Grant | 35,513 | — | — | Oct 28, 2025 |
| Leproust Emily M. | Chief Executive Officer | Award / Grant | 168,976 | — | — | Oct 28, 2025 |
| Laponis Adam | Chief Financial Officer | Award / Grant | 25,000 | — | — | Oct 28, 2025 |
| Finn Patrick John | President and COO | Sale | 2,240 | $30.88 | $69,171 | Oct 23, 2025 |
| Laponis Adam | Chief Financial Officer | Sale | 2,517 | $32.92 | $82,860 | Oct 8, 2025 |
| Laponis Adam | Chief Financial Officer | Sale | 5,875 | $32.19 | $189,116 | Oct 6, 2025 |
| Leproust Emily M. | Chief Executive Officer | Sale | 31,348 | $32.19 | $1,009,092 | Oct 6, 2025 |
| WERNER ROBERT F. | Chief Accounting Officer | Sale | 2,041 | $32.19 | $65,700 | Oct 6, 2025 |
| Green Paula | SVP of Human Resources | Sale | 9,724 | $32.19 | $313,016 | Oct 6, 2025 |
| Finn Patrick John | President and COO | Sale | 23,747 | $32.19 | $764,416 | Oct 6, 2025 |
| Cho Dennis | See Remarks | Sale | 3,876 | $32.19 | $124,768 | Oct 6, 2025 |
| Cho Dennis | See Remarks | Sale | 124 | $29.16 | $3,616 | Oct 2, 2025 |
| Green Paula | SVP of Human Resources | Sale | 140 | $29.16 | $4,082 | Oct 2, 2025 |
| Leproust Emily M. | Chief Executive Officer | Sale | 476 | $29.16 | $13,880 | Oct 2, 2025 |
| Finn Patrick John | President and COO | Sale | 206 | $29.16 | $6,007 | Oct 2, 2025 |
| Cho Dennis | See Remarks | Sale | 233 | $27.56 | $6,421 | Sep 22, 2025 |