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Insider trades
Open-market buys and sells by officers, directors and 10% owners, from SEC Form 4. Usually filed within two business days.
About this data
- What it is
- When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
- Who files it
- The insider, usually through the company, within two business days of the trade.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Open-market trades per day, last 30 days
Purchases Sales
By trade date. Insiders have two business days to file, so the most recent days fill in later.
Latest open-market insider trades
Showing: ticker INSM
| Traded | Insider | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 9, 2026 | David R. Brennan Director | INSM Insmed Incorporated | Sale | 25,000 | $124.00 | $3.1M Sale | Form 4 ↗ |
| Aug 17, 2026 | Melvin Sharoky MD Director | INSM Insmed Incorporated | Sale | 5,000 | $127.53 | $637.6K Sale | Form 4 ↗ |
| Aug 10, 2026 | Roger Adsett Chief Operating Officer | INSM Insmed Incorporated | Sale | 239,850 | $133.27 | $32.0M Sale | Form 4 ↗ |
| Aug 6, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 18,278 | $129.40 | $2.4M Sale | Form 4 ↗ |
| Aug 6, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 8,895 | $127.00 | $1.1M Sale | Form 4 ↗ |
| Jul 23, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 5,872 | $106.43 | $625.0K Sale | Form 4 ↗ |
| Jul 23, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 4,828 | $105.62 | $509.9K Sale | Form 4 ↗ |
| Jul 9, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 3,359 | $118.52 | $398.1K Sale | Form 4 ↗ |
| Jul 9, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 2,335 | $117.62 | $274.6K Sale | Form 4 ↗ |
| Jul 9, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 5,005 | $116.55 | $583.3K Sale | Form 4 ↗ |
| Jul 6, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 7,448 | $110.60 | $823.7K Sale | Form 4 ↗ |
| Jul 6, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 4,854 | $109.02 | $529.2K Sale | Form 4 ↗ |
| Jun 25, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 1,292 | $106.27 | $137.3K Sale | Form 4 ↗ |
| Jun 25, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 2,456 | $105.27 | $258.5K Sale | Form 4 ↗ |
| Jun 25, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 3,723 | $104.28 | $388.2K Sale | Form 4 ↗ |
| Jun 25, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 1,836 | $103.10 | $189.3K Sale | Form 4 ↗ |
| Jun 25, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 12,091 | $102.34 | $1.2M Sale | Form 4 ↗ |
| Jun 22, 2026 | Michael Alexander Smith Chief Legal Officer | INSM Insmed Incorporated | Sale | 1,806 | $95.82 | $173.1K Sale | Form 4 ↗ |
| Jun 8, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 6,515 | $94.03 | $612.6K Sale | Form 4 ↗ |
| Jun 5, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 1,858 | $103.78 | $192.8K Sale | Form 4 ↗ |
| Jun 3, 2026 | Michael Alexander Smith Chief Legal Officer | INSM Insmed Incorporated | Sale | 2,159 | $102.27 | $220.8K Sale | Form 4 ↗ |
| Jun 3, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 2,566 | $102.27 | $262.4K Sale | Form 4 ↗ |
| Jun 3, 2026 | Roger Adsett Chief Operating Officer | INSM Insmed Incorporated | Sale | 2,370 | $102.27 | $242.4K Sale | Form 4 ↗ |
| Jun 3, 2026 | Sara Bonstein Chief Financial Officer | INSM Insmed Incorporated | Sale | 2,404 | $102.27 | $245.9K Sale | Form 4 ↗ |
| Jun 3, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 7,605 | $102.27 | $777.8K Sale | Form 4 ↗ |
| May 22, 2026 | Michael Alexander Smith Chief Legal Officer | INSM Insmed Incorporated | Sale | 6,149 | $108.47 | $667.0K Sale | Form 4 ↗ |
| May 18, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 7,975 | $106.97 | $853.1K Sale | Form 4 ↗ |
| May 18, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 11,836 | $106.39 | $1.3M Sale | Form 4 ↗ |
| May 18, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 5,753 | $105.32 | $605.9K Sale | Form 4 ↗ |
| May 14, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 10,479 | $117.54 | $1.2M Sale | Form 4 ↗ |
| May 13, 2026 | Michael Alexander Smith Chief Legal Officer | INSM Insmed Incorporated | Sale | 4,109 | $116.18 | $477.4K Sale | Form 4 ↗ |
| May 13, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 3,384 | $116.18 | $393.2K Sale | Form 4 ↗ |
| May 13, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 4,470 | $112.76 | $504.0K Sale | Form 4 ↗ |
| May 13, 2026 | Roger Adsett Chief Operating Officer | INSM Insmed Incorporated | Sale | 5,837 | $116.18 | $678.1K Sale | Form 4 ↗ |
| May 13, 2026 | Sara Bonstein Chief Financial Officer | INSM Insmed Incorporated | Sale | 8,272 | $116.18 | $961.0K Sale | Form 4 ↗ |
| May 13, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 13,283 | $116.18 | $1.5M Sale | Form 4 ↗ |
| May 11, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 830 | $101.18 | $84.0K Sale | Form 4 ↗ |
| May 11, 2026 | Martina Flammer MD Chief Medical Officer | INSM Insmed Incorporated | Sale | 12,119 | $100.35 | $1.2M Sale | Form 4 ↗ |
| May 4, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 381 | $139.60 | $53.2K Sale | Form 4 ↗ |
| May 4, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 1,247 | $139.09 | $173.4K Sale | Form 4 ↗ |
| May 4, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 2,721 | $137.86 | $375.1K Sale | Form 4 ↗ |
| May 4, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 5,318 | $137.01 | $728.6K Sale | Form 4 ↗ |
| May 4, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 599 | $135.18 | $81.0K Sale | Form 4 ↗ |
| May 4, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 433 | $134.18 | $58.1K Sale | Form 4 ↗ |
| Apr 16, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 825 | $145.79 | $120.3K Sale | Form 4 ↗ |
| Apr 16, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 2,255 | $144.66 | $326.2K Sale | Form 4 ↗ |
| Apr 16, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 5,373 | $143.81 | $772.7K Sale | Form 4 ↗ |
| Apr 16, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 2,246 | $142.99 | $321.2K Sale | Form 4 ↗ |
| Apr 6, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 1,434 | $164.01 | $235.2K Sale | Form 4 ↗ |
| Apr 6, 2026 | William Lewis Chair and CEO, Director | INSM Insmed Incorporated | Sale | 8,478 | $163.23 | $1.4M Sale | Form 4 ↗ |
The newest 50 items, most recent first. Every row links to its original filing. Updated Nov 15, 2026, 6:26 PM EST.
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