CIK 0001581280 · Large accelerated filer
Twist Bioscience Corp
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- TWST
- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- FY end
- Sep 30
- Incorporated
- DE
- Entity type
- operating
- EIN
- 462058888
- Phone
- 800-719-0671
- Business address
- 681 GATEWAY BLVD., SOUTH SAN FRANCISCO, CA, 94080
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $99,863,292
- in 32 filings, $84.3M under 10b5-1 plans
Net −$99,863,292. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −4,175 | $154.17 | $644K | 960,477 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −13,378 | $155.46 | $2.1M | 947,099 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −9,097 | $156.47 | $1.4M | 938,002 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −32,260 | $157.49 | $5.1M | 905,742 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −232,173 | $158.09 | $36.7M | 673,569 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −23,884 | $159.53 | $3.8M | 649,685 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −14,493 | $160.44 | $2.3M | 635,192 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −11,169 | $161.49 | $1.8M | 624,023 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −2,565 | $162.31 | $416K | 621,458 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −869 | $163.39 | $142K | 620,589 |
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −75,439 | 0 | ||
| 2026-09-17 | Leproust Emily M. Chief Executive Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −133,269 | 0 | ||
| 2026-09-08 | Cho Dennis See Remarks | Sale | −412 | $122.62 | $51K | 73,651 |
| 2026-09-08 | Green Paula SVP of Human Resources | Sale | −907 | $122.62 | $111K | 117,014 |
| 2026-09-08 | Leproust Emily M. Chief Executive Officer | Sale | −2,302 | $122.62 | $282K | 768,427 |
| 2026-09-08 | WERNER ROBERT F. Chief Accounting Officer | Sale | −238 | $122.62 | $29K | 44,399 |
| 2026-08-25 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −12,648 | $150.56 | $1.9M | 799,651 |
| 2026-08-25 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −12,236 | $151.36 | $1.9M | 787,415 |
| 2026-08-25 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −6,412 | $152.75 | $979K | 781,003 |
| 2026-08-25 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −9,181 | $153.93 | $1.4M | 771,822 |
Page 3 of 10 · 194 trades