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Twist Bioscience Corp (NASDAQ:TWST)
US · Delayed Price · Currency is USD
Healthcare · Biotechnology
139.92+4.45 (+3.28%)
Insider Score
––Not scored
TWST Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
TWST Stock Insider Trading Activity
TWST stock’s insider trading shows 28 sales on the open market for an estimated $21.46M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Laponis Adam CFO | Sell | 2,462 | $156.30 | $384.82K | 2.4% | 98,114 | Oct 9, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 1,840 | $200.44 | $368.81K | 0.3% | 565,468 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 481 | $201.26 | $96.80K | 0.1% | 564,987 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 1,017 | $202.32 | $205.76K | 0.2% | 563,970 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 432 | $203.61 | $87.96K | 0.1% | 563,538 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 290 | $204.80 | $59.39K | 0.1% | 563,248 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 297 | $205.78 | $61.12K | 0.1% | 562,951 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 146 | $206.84 | $30.20K | 0.0% | 562,805 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 45 | $207.46 | $9.34K | 0.0% | 562,760 | Oct 5, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 45,736 | $188.88 | $8.64M | 7.5% | 567,308 | Oct 2, 2026 | — | Form 4 |
| WERNER ROBERT F. Other | Sell | 1,482 | $188.88 | $279.93K | 3.3% | 42,917 | Oct 2, 2026 | — | Form 4 |
| Laponis Adam CFO | Sell | 8,057 | $188.88 | $1.52M | 7.4% | 100,576 | Oct 2, 2026 | — | Form 4 |
| Green Paula Other | Sell | 10,088 | $188.88 | $1.91M | 8.6% | 106,632 | Oct 2, 2026 | — | Form 4 |
| Finn Patrick John COO | Sell | 25,714 | $188.88 | $4.86M | 12.2% | 185,088 | Oct 2, 2026 | — | Form 4 |
| Cho Dennis Other | Sell | 9,514 | $188.88 | $1.80M | 13.0% | 63,789 | Oct 2, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 655 | $200.00 | $131.00K | 0.1% | 613,044 | Oct 1, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 2,485 | $175.23 | $435.45K | 0.4% | 616,417 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 945 | $176.39 | $166.69K | 0.2% | 615,472 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 164 | $177.17 | $29.06K | 0.0% | 615,308 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 330 | $178.67 | $58.96K | 0.1% | 614,978 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 143 | $179.93 | $25.73K | 0.0% | 614,835 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 515 | $180.39 | $92.90K | 0.1% | 614,320 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 21 | $181.45 | $3.81K | 0.0% | 614,299 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 16 | $182.50 | $2.92K | 0.0% | 614,283 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 501 | $183.76 | $92.07K | 0.1% | 613,782 | Sep 24, 2026 | — | Form 4 |
| Leproust Emily M. CEO | Sell | 83 | $184.60 | $15.32K | 0.0% | 613,699 | Sep 24, 2026 | — | Form 4 |
| Cho Dennis Other | Sell | 348 | $165.49 | $57.59K | 0.5% | 73,303 | Sep 21, 2026 | — | Form 4 |
| Green Paula Other | Sell | 294 | $165.49 | $48.65K | 0.3% | 116,720 | Sep 21, 2026 | — | Form 4 |
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.