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 |
|---|---|---|---|---|---|---|
| 2026-06-22 | Leproust Emily M. Chief Executive Officer | Sale | −1,688 | $87.32 | $147K | 842,919 |
| 2026-06-15 | Green Paula SVP of Human Resources | Option exercise | +26,137 | $23.33 | $610K | 146,842 |
| 2026-06-15 | Green Paula SVP of Human Resources | Sale | −24,109 | $81.62 | $2.0M | 122,733 |
| 2026-06-15 | Green Paula SVP of Human Resources | Sale | −2,028 | $82.17 | $167K | 120,705 |
| 2026-06-15 | Green Paula SVP of Human Resources | Option exercise · Employee Stock Option (right to buy) | −26,137 | 0 | ||
| 2026-06-08 | Cho Dennis See Remarks | Sale | −402 | $69.84 | $28K | 119,692 |
| 2026-06-08 | Green Paula SVP of Human Resources | Sale | −884 | $69.84 | $62K | 120,705 |
| 2026-06-08 | Leproust Emily M. Chief Executive Officer | Sale | −2,265 | $69.84 | $158K | 844,607 |
| 2026-06-08 | WERNER ROBERT F. Chief Accounting Officer | Sale | −232 | $69.84 | $16K | 47,954 |
| 2026-06-08 | WERNER ROBERT F. Chief Accounting Officer | Sale | −1,127 | $69.07 | $78K | 46,827 |
| 2026-06-08 | WERNER ROBERT F. Chief Accounting Officer | Gift | −500 | 46,327 | ||
| 2026-05-29 | Cho Dennis See Remarks | Sale 10b5-1 | −14,205 | $69.75 | $991K | 120,094 |
| 2026-05-29 | Laponis Adam Chief Financial Officer | Sale 10b5-1 | −4,000 | $70.00 | $280K | 112,675 |
| 2026-05-28 | Leproust Emily M. Chief Executive Officer | Option exercise 10b5-1 | +16,470 | $8.82 | $145K | 863,342 |
| 2026-05-28 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −1,482 | $65.33 | $97K | 861,860 |
| 2026-05-28 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −900 | $66.85 | $60K | 860,960 |
| 2026-05-28 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −7,623 | $67.95 | $518K | 853,337 |
| 2026-05-28 | Leproust Emily M. Chief Executive Officer | Sale 10b5-1 | −6,465 | $68.61 | $444K | 846,872 |
| 2026-05-28 | Leproust Emily M. Chief Executive Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −16,470 | 75,439 | ||
| 2026-05-28 | Starovasnik Melissa A. Director | Sale 10b5-1 | −2,500 | $68.00 | $170K | 22,222 |
Page 6 of 10 · 194 trades