TWSTHealthcareMid-Cap
Twist Bioscience Corp Insider Trading Activity
Every SEC Form 4 insider transaction reported for Twist Bioscience Corp (TWST), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are TWST insiders buying or selling?
Twist Bioscience Corp insiders reported 4 open-market buys ($2.5M) and 477 sells ($245.2M) across 481 Form 4 filings — a net selling position of $242.7M.
Source: SEC EDGAR Form 4
Key Statistics (as of Jul 13, 2026)
Total Form 4 filings
481
SEC EDGAR
Insider filers
18
Insider buys (4)
$2.5M
Insider sells (477)
$245.2M
Insider sentiment
Net sellingNet insider flow of $242.7M in net selling.
Recent TWST insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 13, 2026 | Adam Laponis | Chief Financial Officer | Sale | 2.4K | $94.33 | $226.3K |
| Jun 26, 2026 | Emily M. Leproust | Chief Executive Officer | Sale | 18.9K | $95.00 | $1.8M |
| Jun 26, 2026 | Dennis Cho | Senior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 14.2K | $89.75 | $1.3M |
| Jun 24, 2026 | Paula Green | SVP of Human Resources | Sale | 291 | $87.32 | $25.4K |
| Jun 24, 2026 | Dennis Cho | Senior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 346 | $87.32 | $30.2K |
| Jun 24, 2026 | Emily M. Leproust | Chief Executive Officer | Sale | 1.7K | $87.32 | $147.4K |
| Jun 17, 2026 | Paula Green | SVP of Human Resources | Sale | 26.1K | $81.67 | $2.1M |
| Jun 10, 2026 | Dennis Cho | Senior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 402 | $69.84 | $28.1K |
| Jun 10, 2026 | Paula Green | SVP of Human Resources | Sale | 884 | $69.84 | $61.7K |
| Jun 10, 2026 | Emily M. Leproust | Chief Executive Officer | Sale | 2.3K | $69.84 | $158.2K |
| Jun 10, 2026 | Robert F. Werner | Chief Accounting Officer | Sale | 1.4K | $69.20 | $94.0K |
| Jun 2, 2026 | Dennis Cho | Senior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 14.2K | $69.75 | $990.8K |
| Jun 2, 2026 | Adam Laponis | Chief Financial Officer | Sale | 4.0K | $70.00 | $280.0K |
| Jun 1, 2026 | Emily M. Leproust | Chief Executive Officer | Sale | 16.5K | $67.91 | $1.1M |
| Jun 1, 2026 | Melissa A. Starovasnik | Director | Sale | 2.5K | $68.00 | $170.0K |
| May 28, 2026 | Melissa A. Starovasnik | Director | Sale | 500 | $61.04 | $30.5K |
| May 28, 2026 | Emily M. Leproust | Chief Executive Officer | Sale | 49.3K | $65.19 | $3.2M |
| May 28, 2026 | Robert F. Werner | Chief Accounting Officer | Sale | 800 | $62.48 | $50.0K |
| May 26, 2026 | Paula Green | SVP of Human Resources | Sale | 1.4K | $53.26 | $74.5K |
| May 26, 2026 | Patrick John Finn | President and COO | Sale | 4.2K | $53.26 | $221.5K |
| May 26, 2026 | Dennis Cho | Senior Vice President, Chief Legal Officer & Corporate Secretary | Sale | 1.6K | $53.26 | $87.4K |
| May 26, 2026 | Robert F. Werner | Chief Accounting Officer | Sale | 688 | $53.26 | $36.6K |
| May 26, 2026 | Emily M. Leproust | Chief Executive Officer | Sale | 6.9K | $53.26 | $366.8K |
| May 26, 2026 | Adam Laponis | Chief Financial Officer | Sale | 2.0K | $53.26 | $107.5K |
| May 14, 2026 | Jan Johannessen | Director | Sale | 12.0K | $56.12 | $673.4K |
Showing the 25 most recent of 481 Form 4 filings for Twist Bioscience Corp.
Most active TWST insiders
- Emily M. Leproust85 filings
- Patrick John Finn71 filings
- Dennis Cho59 filings
- Paula Green59 filings
- William Banyai44 filings
Ask anything about TWST insider activity
Use Trabud's AI agent to query Twist Bioscience Corp's Form 4 history in plain English — "Show me TWST CEO purchases this year" or compare it against any other ticker.
Open the AI agentTWST insider trading FAQ
Are Twist Bioscience Corp insiders buying or selling?
Across 481 SEC Form 4 filings, Twist Bioscience Corp (TWST) insiders reported 4 open-market purchases totaling $2.5M and 477 sales totaling $245.2M. That is a net selling position of $242.7M.
How many insiders trade TWST stock?
18 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Twist Bioscience Corp. The most recent filing was accepted on Jul 13, 2026.
Where does Trabud get TWST insider trading data?
All TWST insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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