TWST
Twist Bioscience Corp
Latest Form 4:Sale$6.3MbyLeproust Emily M. (Chief Executive Officer) · filed Aug 27, 2026
Twist Bioscience Corp (TWST) has 147 SEC Form 4 filings (195 transaction rows) in the rolling window, disclosed by 10 distinct insiders. Most recent filing: Aug 27, 2026.
Inside the rolling window, 10 insiders at Twist Bioscience Corp reported no open-market purchases and 139 open-market sales totaling $73.2M. The most active filer is Chief Executive Officer Leproust Emily M. with 28 filings. Insiders have net sold $57.9M over the trailing 6 months. The most recent open-market filing is a sale of 41,570 shares by Chief Executive Officer Leproust Emily M., dated Aug 25, 2026, worth $6.3M.
- Industry:Medical - Diagnostics & Research
- CEO:Emily Marine Leproust
- Employees:979
- HQ:South San Francisco, CA, US
- IPO:2018-10-31
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$73.2M
reported sales (SEC code S)
Unique Insiders
10
in the rolling window
Market Cap
$8.2B
latest known value
| Source | ||||||
|---|---|---|---|---|---|---|
| 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 ↗ | |
| Chief Executive Officer | Sale | 6,639 | $923K | Aug 25 | SEC ↗ | |
| See Remarks | Sale | 14,205 | $1.8M | Aug 21 | SEC ↗ | |
| President and COO | Sale | 78,355 | $9.2M | Aug 20 | SEC ↗ | |
| Chief Executive Officer | Sale | 19,952 | $2.5M | Aug 14 | SEC ↗ | |
BLAKE KATRYNFirst filing | Director | Sale | 2,240 | $275K | Aug 14 | SEC ↗ |
| Chief Executive Officer | Sale | 113,318 | $14.2M | Aug 12 | SEC ↗ | |
CHESS ROBERTFirst in 5 months | Director | Sale | 18,417 | $2.0M | Aug 11 | SEC ↗ |
| See Remarks | Sale | 14,205 | $1.6M | Aug 7 | SEC ↗ | |
| President and COO | Sale | 2,888 | $246K | Aug 5 | SEC ↗ | |
| See Remarks | Sale | 1,070 | $91K | Aug 5 | SEC ↗ | |
| Chief Accounting Officer | Sale | 167 | $14K | Aug 5 | SEC ↗ | |
| SVP of Human Resources | Sale | 1,133 | $97K | Aug 5 | SEC ↗ | |
| Chief Executive Officer | Sale | 5,101 | $435K | Aug 5 | SEC ↗ | |
| President and COO | Sale | 2,238 | $210K | Jul 27 | SEC ↗ | |
| Chief Financial Officer | Sale | 2,399 | $226K | Jul 13 | SEC ↗ | |
| See Remarks | Sale | 14,205 | $1.3M | Jun 26 | SEC ↗ | |
| Chief Executive Officer | Sale | 18,880 | $1.8M | Jun 26 | SEC ↗ | |
| SVP of Human Resources | Sale | 291 | $25K | Jun 24 | SEC ↗ | |
| See Remarks | Sale | 346 | $30K | Jun 24 | SEC ↗ | |
| Chief Executive Officer | Sale | 1,688 | $147K | Jun 24 | SEC ↗ | |
| SVP of Human Resources | Sale | 26,137 | $2.1M | Jun 17 | SEC ↗ | |
| Chief Accounting Officer | Sale | 1,359 | $94K | Jun 10 | SEC ↗ | |
| See Remarks | Sale | 402 | $28K | Jun 10 | SEC ↗ | |
| Chief Executive Officer | Sale | 2,265 | $158K | Jun 10 | SEC ↗ | |
| SVP of Human Resources | Sale | 884 | $62K | Jun 10 | SEC ↗ | |
| See Remarks | Sale | 14,205 | $991K | Jun 2 | SEC ↗ | |
| Chief Financial Officer | Sale | 4,000 | $280K | Jun 2 | SEC ↗ | |
| Chief Executive Officer | Sale | 16,470 | $1.1M | Jun 1 | SEC ↗ | |
| Director | Sale | 2,500 | $170K | Jun 1 | SEC ↗ | |
| Chief Executive Officer | Sale | 24,282 | $1.6M | May 28 | SEC ↗ | |
| Chief Executive Officer | Sale | 25,017 | $1.6M | May 28 | SEC ↗ | |
| Director | Sale | 500 | $31K | May 28 | SEC ↗ | |
| Chief Accounting Officer | Sale | 800 | $50K | May 28 | SEC ↗ | |
| Chief Accounting Officer | Sale | 688 | $37K | May 26 | SEC ↗ | |
| Chief Financial Officer | Sale | 2,019 | $108K | May 26 | SEC ↗ | |
| SVP of Human Resources | Sale | 1,399 | $75K | May 26 | SEC ↗ | |
| See Remarks | Sale | 1,642 | $87K | May 26 | SEC ↗ | |
| Chief Executive Officer | Sale | 6,888 | $367K | May 26 | SEC ↗ | |
| President and COO | Sale | 4,160 | $222K | May 26 | SEC ↗ | |
JOHANNESSEN JANFirst in 3 months | Director | Sale | 12,000 | $673K | May 14 | SEC ↗ |
| Chief Accounting Officer | Sale | 4,961 | $282K | May 12 | SEC ↗ | |
| President and COO | Sale | 2,844 | $163K | May 6 | SEC ↗ | |
| See Remarks | Sale | 1,962 | $112K | May 6 | SEC ↗ | |
| Chief Accounting Officer | Sale | 164 | $9K | May 6 | SEC ↗ | |
| SVP of Human Resources | Sale | 1,116 | $64K | May 6 | SEC ↗ | |
| Chief Executive Officer | Sale | 5,127 | $293K | May 6 | SEC ↗ | |
| Director | Sale | 500 | $31K | Apr 29 | SEC ↗ | |
| President and COO | Sale | 2,321 | $141K | Apr 27 | SEC ↗ | |
| Chief Executive Officer | Sale | 1,610 | $105K | Apr 23 | SEC ↗ | |
| Chief Executive Officer | Sale | 8,061 | $526K | Apr 23 | SEC ↗ | |
| Chief Financial Officer | Sale | 4,000 | $240K | Apr 21 | SEC ↗ | |
| Chief Financial Officer | Sale | 3,000 | $165K | Apr 16 | SEC ↗ | |
| Chief Financial Officer | Sale | 2,597 | $130K | Apr 13 | SEC ↗ | |
Starovasnik Melissa A.First filing | Director | Sale | 1,000 | $51K | Apr 3 | SEC ↗ |
| SVP of Human Resources | Sale | 297 | $13K | Mar 24 | SEC ↗ | |
| See Remarks | Sale | 354 | $16K | Mar 24 | SEC ↗ | |
| Chief Executive Officer | Sale | 1,742 | $76K | Mar 24 | SEC ↗ | |
| Director | Sale | 10,000 | $470K | Mar 19 | SEC ↗ | |
| SVP of Human Resources | Sale | 935 | $43K | Mar 10 | SEC ↗ | |
| Chief Accounting Officer | Sale | 246 | $11K | Mar 10 | SEC ↗ | |
| Chief Executive Officer | Sale | 2,423 | $112K | Mar 10 | SEC ↗ | |
| See Remarks | Sale | 425 | $20K | Mar 10 | SEC ↗ | |
| Chief Accounting Officer | Sale | 1,693 | $79K | Feb 25 | SEC ↗ | |
| Chief Financial Officer | Sale | 2,085 | $97K | Feb 25 | SEC ↗ | |
| SVP of Human Resources | Sale | 1,465 | $68K | Feb 25 | SEC ↗ | |
| See Remarks | Sale | 844 | $39K | Feb 25 | SEC ↗ | |
| President and COO | Sale | 4,294 | $201K | Feb 25 | SEC ↗ | |
| Chief Executive Officer | Sale | 7,205 | $337K | Feb 25 | SEC ↗ | |
| President and COO | Sale | 68,967 | $3.6M | Feb 19 | SEC ↗ | |
| SVP of Human Resources | Sale | 39,404 | $2.1M | Feb 19 | SEC ↗ | |
CHESS ROBERTFirst filing | Director | Sale | 2,184 | $105K | Feb 18 | SEC ↗ |
| President and COO | Sale | 3,500 | $176K | Feb 17 | SEC ↗ | |
| President and COO | Sale | 1,750 | $88K | Feb 17 | SEC ↗ | |
| Chief Financial Officer | Sale | 7,000 | $350K | Feb 13 | SEC ↗ | |
| See Remarks | Sale | 5,000 | $250K | Feb 13 | SEC ↗ | |
JOHANNESSEN JANFirst filing | Director | Sale | 2,200 | $105K | Feb 9 | SEC ↗ |
| Chief Accounting Officer | Sale | 175 | $8K | Feb 5 | SEC ↗ | |
| Chief Accounting Officer | Sale | 7,000 | $320K | Feb 5 | SEC ↗ | |
| See Remarks | Sale | 1,099 | $51K | Feb 5 | SEC ↗ | |
| President and COO | Sale | 2,705 | $126K | Feb 5 | SEC ↗ | |
| SVP of Human Resources | Sale | 1,194 | $56K | Feb 5 | SEC ↗ | |
| Chief Executive Officer | Sale | 5,001 | $233K | Feb 5 | SEC ↗ | |
| President and COO | Sale | 2,390 | $107K | Jan 27 | SEC ↗ | |
| President and COO | Sale | 23,279 | $931K | Jan 15 | SEC ↗ | |
| Chief Financial Officer | Sale | 3,000 | $120K | Jan 15 | SEC ↗ | |
| Chief Financial Officer | Sale | 2,738 | $97K | Jan 13 | SEC ↗ | |
| See Remarks | Sale | 324 | $11K | Dec 23 | SEC ↗ | |
| SVP of Human Resources | Sale | 273 | $9K | Dec 23 | SEC ↗ | |
| Chief Executive Officer | Sale | 1,605 | $55K | Dec 23 | SEC ↗ | |
| SVP of Human Resources | Sale | 877 | $29K | Dec 10 | SEC ↗ | |
| See Remarks | Sale | 398 | $13K | Dec 10 | SEC ↗ | |
| Chief Accounting Officer | Sale | 230 | $8K | Dec 10 | SEC ↗ | |
| Chief Executive Officer | Sale | 2,255 | $74K | Dec 10 | SEC ↗ | |
| Chief Accounting Officer | Sale | 229 | $6K | Nov 25 | SEC ↗ | |
| Chief Accounting Officer | Sale | 822 | $24K | Nov 25 | SEC ↗ | |
| See Remarks | Sale | 757 | $20K | Nov 25 | SEC ↗ | |
| President and COO | Sale | 1,776 | $47K | Nov 25 | SEC ↗ | |
| SVP of Human Resources | Sale | 598 | $16K | Nov 25 | SEC ↗ | |
| Chief Financial Officer | Sale | 887 | $24K | Nov 25 | SEC ↗ | |
| Chief Executive Officer | Sale | 2,663 | $71K | Nov 25 | SEC ↗ | |
| President and COO | Sale | 2,755 | $88K | Nov 5 | SEC ↗ | |
| Chief Accounting Officer | Sale | 160 | $5K | Nov 5 | SEC ↗ | |
| See Remarks | Sale | 1,019 | $33K | Nov 5 | SEC ↗ | |
| SVP of Human Resources | Sale | 1,084 | $35K | Nov 5 | SEC ↗ | |
| Chief Executive Officer | Sale | 4,887 | $157K | Nov 5 | SEC ↗ | |
| SVP of Human Resources | Sale | 6,920 | $218K | Nov 3 | SEC ↗ | |
| See Remarks | Sale | 6,515 | $205K | Nov 3 | SEC ↗ | |
| Chief Financial Officer | Sale | 5,517 | $173K | Nov 3 | SEC ↗ | |
| President and COO | Sale | 17,606 | $554K | Nov 3 | SEC ↗ | |
| Chief Accounting Officer | Sale | 1,016 | $32K | Nov 3 | SEC ↗ | |
| Chief Executive Officer | Sale | 31,379 | $987K | Nov 3 | SEC ↗ | |
| President and COO | Sale | 2,240 | $69K | Oct 27 | SEC ↗ | |
| Chief Financial Officer | Sale | 3,000 | $93K | Oct 10 | SEC ↗ | |
| Chief Financial Officer | Sale | 2,517 | $83K | Oct 10 | SEC ↗ | |
| Chief Accounting Officer | Sale | 2,041 | $66K | Oct 8 | SEC ↗ | |
| President and COO | Sale | 23,747 | $764K | Oct 8 | SEC ↗ | |
| See Remarks | Sale | 3,876 | $125K | Oct 8 | SEC ↗ | |
| SVP of Human Resources | Sale | 9,724 | $313K | Oct 8 | SEC ↗ | |
Laponis AdamFirst filing | Chief Financial Officer | Sale | 5,875 | $189K | Oct 8 | SEC ↗ |
| Chief Executive Officer | Sale | 31,348 | $1.0M | Oct 8 | SEC ↗ | |
| See Remarks | Sale | 124 | $4K | Oct 6 | SEC ↗ | |
| SVP of Human Resources | Sale | 140 | $4K | Oct 6 | SEC ↗ | |
Finn Patrick JohnFirst filing | President and COO | Sale | 206 | $6K | Oct 6 | SEC ↗ |
| Chief Executive Officer | Sale | 476 | $14K | Oct 6 | SEC ↗ | |
| See Remarks | Sale | 233 | $6K | Sep 24 | SEC ↗ | |
| SVP of Human Resources | Sale | 295 | $8K | Sep 24 | SEC ↗ | |
| Chief Executive Officer | Sale | 1,704 | $47K | Sep 24 | SEC ↗ | |
| See Remarks | Sale | 94 | $2K | Sep 17 | SEC ↗ | |
Green PaulaFirst filing | SVP of Human Resources | Sale | 892 | $23K | Sep 10 | SEC ↗ |
Cho DennisFirst filing | See Remarks | Sale | 269 | $7K | Sep 10 | SEC ↗ |
WERNER ROBERT F.First filing | Chief Accounting Officer | Sale | 235 | $6K | Sep 10 | SEC ↗ |
Leproust Emily M.First filing | Chief Executive Officer | Sale | 2,265 | $58K | Sep 10 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does TWST have?
Twist Bioscience Corp (TWST) has 147 SEC Form 4 filings (195 transaction rows) in the rolling 365-day window, disclosed by 10 distinct insiders. Most recent filing: Aug 27, 2026.
When was the most recent SEC Form 4 filing for TWST?
The most recent Form 4 filing for TWST on Tracefour is dated Aug 27, 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 28 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 $57.9M 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 $73.2M 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.