TWST
Twist Bioscience Corp · Healthcare · Market cap $9.4B
Insiders sold $120.0M net in the last 90 days ·8 sellers, 0 buyers· 12 of 39 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 13, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$149.0M
reported sales (SEC code S)
Unique Insiders
10
in the rolling window
Latest filing
Oct 13, 2026
Laponis Adam
Twist Bioscience Corp (TWST) has 145 SEC Form 4 filings (223 transaction rows) in the rolling window, disclosed by 10 distinct insiders. Most recent filing: Oct 13, 2026.
Inside the rolling window, 10 insiders at Twist Bioscience Corp reported no open-market purchases and 137 open-market sales totaling $149.0M. The most active filer is Chief Executive Officer Leproust Emily M. with 31 filings. Insiders have net sold $135.5M over the trailing 6 months. The most recent open-market filing is a sale of 2,462 shares by Chief Financial Officer Laponis Adam, dated Oct 9, 2026, worth $385K.
- Industry:Medical - Diagnostics & Research
- CEO:Emily Marine Leproust
- Employees:979
- HQ:South San Francisco, CA, US
- IPO:2018-10-31
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Chief Financial Officer | Sale | 2,462 | $385K | Oct 13 | -1.5% | SEC ↗ | |
| Chief Executive Officer | Sale | 4,548 | $919K | Oct 7 | -4.2% | SEC ↗ | |
| Chief Executive Officer | Sale | 655 | $131K | Oct 5 | -27.3% | SEC ↗ | |
| Chief Executive Officer | Sale | 45,736 | $8.6M | Oct 5 | — | SEC ↗ | |
| SVP of Human Resources | Sale | 10,088 | $1.9M | Oct 5 | — | SEC ↗ | |
| Chief Accounting Officer | Sale | 1,482 | $280K | Oct 5 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 8,057 | $1.5M | Oct 5 | — | SEC ↗ | |
| President and COO | Sale | 25,714 | $4.9M | Oct 5 | — | SEC ↗ | |
| See Remarks | Sale | 9,514 | $1.8M | Oct 5 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 5,203 | $923K | Sep 25 | — | SEC ↗ | |
| SVP of Human Resources | Sale | 294 | $49K | Sep 23 | — | SEC ↗ | |
| See Remarks | Sale | 348 | $58K | Sep 23 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 1,687 | $279K | Sep 23 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 356,546 | $56.3M | Sep 21 | — | SEC ↗ | |
| See Remarks | Sale | 412 | $51K | Sep 10 | — | SEC ↗ | |
| Chief Accounting Officer | Sale | 238 | $29K | Sep 10 | — | SEC ↗ | |
| SVP of Human Resources | Sale | 907 | $111K | Sep 10 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 2,302 | $282K | Sep 10 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 41,570 | $6.3M | Aug 27 | — | SEC ↗ | |
| Chief Accounting Officer | Sale | 669 | $93K | Aug 25 | — | SEC ↗ | |
| Chief Accounting Officer | Sale | 854 | $120K | Aug 25 | — | SEC ↗ | |
| President and COO | Sale | 4,046 | $563K | Aug 25 | — | SEC ↗ | |
| See Remarks | Sale | 1,598 | $222K | Aug 25 | — | SEC ↗ | |
| SVP of Human Resources | Sale | 1,360 | $189K | Aug 25 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 1,965 | $273K | Aug 25 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading TWST 1 all-time
- DRep. Dwight EvansPurchase$1,001 - $15,0002020-03-02
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does TWST have?
Twist Bioscience Corp (TWST) has 145 SEC Form 4 filings (223 transaction rows) in the rolling 365-day window, disclosed by 10 distinct insiders. Most recent filing: Oct 13, 2026.
When was the most recent SEC Form 4 filing for TWST?
The most recent Form 4 filing for TWST on Tracefour is dated Oct 13, 2026.
Who is the most active insider at TWST?
The most active SEC Form 4 filer at TWST in the rolling window is Chief Executive Officer Leproust Emily M., with 31 filings.
What is the net insider flow at TWST over the last 6 months?
Over the trailing 180 days, insiders at TWST have net sold $135.5M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at TWST in the current window?
Inside the rolling window, insiders at TWST bought $0 and sold $149.0M based on SEC Form 4 filings.
Can I get alerts for TWST insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Twist Bioscience Corp (TWST). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Twist Bioscience Corp is in the Healthcare sector.