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 |
|---|---|---|---|---|---|---|
| 2026-08-25 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −1,093 | $154.45 | $169K | 770,729 |
| 2026-08-24 | WERNER ROBERT F. Chief Accounting Officer | Sale | −854 | $140.77 | $120K | 44,637 |
| 2026-08-21 | Cho Dennis See Remarks | Sale | −1,598 | $139.07 | $222K | 74,063 |
| 2026-08-21 | Finn Patrick John President and COO | Sale | −4,046 | $139.07 | $563K | 210,802 |
| 2026-08-21 | Green Paula SVP of Human Resources | Sale | −1,360 | $139.07 | $189K | 117,921 |
| 2026-08-21 | Laponis Adam Chief Financial Officer | Sale | −1,965 | $139.07 | $273K | 108,633 |
| 2026-08-21 | Leproust Emily M. Chief Executive Officer | Sale | −6,639 | $139.07 | $923K | 812,299 |
| 2026-08-21 | WERNER ROBERT F. Chief Accounting Officer | Sale | −669 | $139.07 | $93K | 45,491 |
| 2026-08-19 | Cho Dennis See Remarks | Sale 10b5-1 | −14,205 | $129.75 | $1.8M | 75,661 |
| 2026-08-18 | Finn Patrick John President and COO | Option exercise 10b5-1 | +23,355 | $67.85 | $1.6M | 293,033 |
| 2026-08-18 | Finn Patrick John President and COO | Sale 10b5-1 | −33,354 | $115.90 | $3.9M | 259,679 |
| 2026-08-18 | Finn Patrick John President and COO | Sale 10b5-1 | −10,420 | $116.82 | $1.2M | 249,259 |
| 2026-08-18 | Finn Patrick John President and COO | Sale 10b5-1 | −8,868 | $117.70 | $1.0M | 240,391 |
| 2026-08-18 | Finn Patrick John President and COO | Sale 10b5-1 | −4,500 | $119.04 | $536K | 235,891 |
| 2026-08-18 | Finn Patrick John President and COO | Sale 10b5-1 | −12,917 | $119.86 | $1.5M | 222,974 |
| 2026-08-18 | Finn Patrick John President and COO | Sale 10b5-1 | −6,296 | $121.01 | $762K | 216,678 |
| 2026-08-18 | Finn Patrick John President and COO | Sale 10b5-1 | −2,000 | $122.58 | $245K | 214,678 |
| 2026-08-18 | Finn Patrick John President and COO | Option exercise · Stock Option (right to buy) 10b5-1 | −23,355 | 0 | ||
| 2026-08-12 | BLAKE KATRYN Director | Sale | −2,240 | $122.88 | $275K | 17,208 |
| 2026-08-12 | Leproust Emily M. Chief Executive Officer | Option exercise 10b5-1 | +19,952 | $26.66 | $532K | 838,890 |
Page 4 of 10 · 194 trades