Insmed Inc Insider Trading
Every director, officer and 10% holder of Insmed Inc has to report each trade in its stock within two business days of making it. This is those filings.
INSM on carbonthat →Purchases and sales
Open-market trades only — the lines where someone chose to buy or sell at the going price.
| Insider | Action | Value |
|---|---|---|
| David R BrennanDirector2026-09-0925K shat $124.00 | Sale | $3.1M |
| Melvin MD SharokyDirector2026-08-175K shat $127.53 | Sale | $637.7K |
| Roger AdsettChief Operating Officer2026-08-10239.9K shat $133.27 | Sale | $32M |
| Martina M.D. FlammerChief Medical Officer2026-08-068.9K shat $127.00 | Sale10b5-1 plan | $1.1M |
| Martina M.D. FlammerChief Medical Officer2026-08-0618.3K shat $129.40 | Sale10b5-1 plan | $2.4M |
| William LewisChair and CEO2026-07-234.8K shat $105.62 | Sale10b5-1 plan | $509.9K |
| William LewisChair and CEO2026-07-235.9K shat $106.43 | Sale10b5-1 plan | $625K |
| William LewisChair and CEO2026-07-095K shat $116.55 | Sale10b5-1 plan | $583.3K |
| William LewisChair and CEO2026-07-092.3K shat $117.62 | Sale10b5-1 plan | $274.6K |
| William LewisChair and CEO2026-07-093.4K shat $118.52 | Sale10b5-1 plan | $398.1K |
| Martina M.D. FlammerChief Medical Officer2026-07-064.9K shat $109.02 | Sale10b5-1 plan | $529.2K |
| Martina M.D. FlammerChief Medical Officer2026-07-067.4K shat $110.60 | Sale10b5-1 plan | $823.7K |
Source: SEC Form 4 filings, via EDGAR. A derivative line reports the shares underlying an option rather than stock outstanding, so it is marked and is not comparable with the rest. Value is shares times the reported price, and is blank where the filing priced the transaction at zero — a grant costs its recipient nothing. Insiders sell for reasons that have nothing to do with the company, which is why a sale is not read as a signal on its own.
More on INSM
Follow Insmed Inc (INSM) by email
New trades in Insmed Inc (INSM) by members of Congress, insiders and funds, with the rest of the week's filings. One email a week, free.
Unsubscribe with one click from any email.