Twist Bioscience ($TWST) Insider Trading & Smart Money Activity
Twist Bioscience Corporation ($TWST) has 18 insider trades, 6 13F position changes and 5 analyst ratings on file. In the last 12 months on the open market, no insider bought and 8 insiders sold ($81.32M), net -$81.32M.
- Insider buyers (12 mo)
- 0
- Insider sellers (12 mo)
- 8
- Net insider $ (12 mo)
- -$81.32M
- Congress trades (12 mo)
- 0
- 13F moves on file
- 6
- Analyst ratings on file
- 5
TWST insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q2 2026 | 0 | 4 · $3.25M | 0 / 0 | 3 / 3 |
| Q3 2026 | 0 | 5 · $57.64M | 0 / 0 | 0 / 0 |
| Q4 2026 | 0 | 9 · $20.44M | 0 / 0 | 0 / 0 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All TWST insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Insider | Laponis AdamChief Financial Officer | Sell (Open-market sale) | 2.46K sh | $384.82K | -16.9% | Read | |||||
| Insider | Leproust Emily M.Chief Executive Officer | Sell (Open-market sale) 10b5-1 | 4.55K sh | $919.37K | -25.9% | — | |||||
| Insider | Werner Robert F.Chief Accounting Officer | Sell (Open-market sale) | 1.48K sh | $279.93K | -15.3% | — | |||||
| Insider | Leproust Emily M.Chief Executive Officer | Sell (Open-market sale) 10b5-1 | 45.74K sh | $8.64M | -15.3% | — | |||||
| Insider | Laponis AdamChief Financial Officer | Sell (Open-market sale) | 8.06K sh | $1.52M | -15.3% | — | |||||
| Insider | Green PaulaSVP of Human Resources | Sell (Open-market sale) | 10.09K sh | $1.91M | -15.3% | — | |||||
| Insider | Finn Patrick JohnPresident and COO | Sell (Open-market sale) | 25.71K sh | $4.86M | -15.3% | — | |||||
| Insider | Cho DennisSenior Vice President, Chief Legal Officer & Corporate Secretary | Sell (Open-market sale) | 9.51K sh | $1.80M | -15.3% | — | |||||
| Insider | Leproust Emily M.Chief Executive Officer | Sell (Open-market sale) 10b5-1 | 655 sh | $131K | -19.1% | — | |||||
| Insider | Leproust Emily M.Chief Executive Officer | Sell (Open-market sale) 10b5-1 | 5.20K sh | $922.91K | +2.2% | — | |||||
| Insider | Leproust Emily M.Chief Executive Officer | Sell (Open-market sale) | 1.69K sh | $279.18K | +8.3% | — | |||||
| Insider | Green PaulaSVP of Human Resources | Sell (Open-market sale) | 294 sh | $48.65K | +8.3% | — | |||||
| Insider | Cho DennisSenior Vice President, Chief Legal Officer & Corporate Secretary | Sell (Open-market sale) | 348 sh | $57.59K | +8.3% | — | |||||
| Insider | Leproust Emily M.Chief Executive Officer | Sell (Open-market sale) 10b5-1 | 356.55K sh | $56.33M | +18.3% | — | |||||
| Analyst | Guggenheim | Reiterates to buy | PT $107 | +1.6% | -13.1% | Read | |||||
| Insider | Emily LeproustChief Executive Officer | Sell (Open-market sale) 10b5-1 | 18.88K sh | $1.79M | +2.7% | -10.5% | — | ||||
| Insider | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sell (Open-market sale) 10b5-1 | 14.21K sh | $1.27M | +11.9% | -1.2% | Read | ||||
| Analyst | Barclays | Reiterates to buy | PT $95 | +11.9% | -1.2% | Read | |||||
| Insider | Emily LeproustChief Executive Officer | Sell (Open-market sale) | 1.69K sh | $147.40K | +15.5% | +10.6% | — | ||||
| Insider | Dennis ChoSenior Vice President, Chief Legal Officer & Corporate Secretary | Sell (Open-market sale) | 346 sh | $30.21K | +15.5% | +10.6% | — | ||||
| Analyst | TD Cowen | Reiterates to buy | PT $89 | +5.4% | +14.6% | Read | |||||
| Analyst | Canaccord Genuity | Reiterates to buy | PT $90 | +5.4% | +14.6% | Read | |||||
| Analyst | Piper Sandler | Reiterates to buy | PT $85 | +18.2% | +22.0% | Read | |||||
| 13F | Farallon Capital Management | Added | +1.42M sh | $146.88M | +23.2% | +64.3% | — | ||||
| 13F | Artisan Partners Limited Partnership | Added | +537.57K sh | $471.66M | -1.3% | +40.0% | — | ||||
| 13F | Artisan Partners Limited Partnership | Added | +537.57K sh | $626.33M | -1.3% | +40.0% | — | ||||
| 13F | ARK Investment Management | Reduced | -1.22M sh | $652.54M | -11.5% | +32.4% | — | ||||
| 13F | William Blair Investment Management | Reduced | -684.71K sh | $390.33M | -13.5% | +23.2% | — | ||||
| 13F | William Blair Investment Management | Reduced | -684.71K sh | $542.15M | -13.5% | +23.2% | — |
1W / 1M / 6M = how TWST moved from the trade or filing date.
Insider trading in TWST: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Laponis Adam | Chief Financial Officer | 2 | -$1.91M | Oct 9, 2026 | |
| Leproust Emily M. | Chief Executive Officer | 6 | -$67.22M | Oct 5, 2026 | |
| Green Paula | SVP of Human Resources | 2 | -$1.95M | Oct 2, 2026 | |
| Cho Dennis | Senior Vice President, Chief Legal Officer & Corporate Secretary | 2 | -$1.85M | Oct 2, 2026 | |
| Werner Robert F. | Chief Accounting Officer | 1 | -$279.93K | Oct 2, 2026 | |
| Finn Patrick John | President and COO | 1 | -$4.86M | Oct 2, 2026 | |
| Emily Leproust | Chief Executive Officer | 2 | -$1.94M | Jun 25, 2026 | |
| Dennis Cho | Senior Vice President, Chief Legal Officer & Corporate Secretary | 2 | -$1.31M | Jun 24, 2026 |
Institutions moving TWST (13F)
Analyst ratings on TWST
Frequently asked questions
Are TWST insiders buying or selling?
Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 8 insiders made 18 open-market sales worth $81.32M, a net -$81.32M.
What is the latest insider trade in TWST?
Laponis Adam, Chief Financial Officer filed a sell (open-market sale) of 2.46K sh worth $384.82K on Oct 9, 2026.
Which institutions changed their TWST positions?
Recent 13F filers moving the stock include Artisan Partners Limited Partnership, William Blair Investment Management, Farallon Capital Management and ARK Investment Management.
Other biotechnology stocks
Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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