| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| JOHANNESSEN JAN | Director | C/O TWIST BIOSCIENCE CORPORATION, 681 GATEWAY BLVD., SOUTH SAN FRANCISCO | /s/ Kendra Fox, as Attorney-in-Fact for Jan Johannessen | 20 Nov 2025 | 0001224168 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TWST | Common Stock | Sale | $174,480 | -7,044 | -32% | $24.77 | 14,859 | 18 Nov 2025 | Direct |