INSMED Inc
INSM
51 insider filings · Latest: Sep 9, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Feb 3, 2026 | Feb 3 9:58 PM | William Lewis | Proposed Sale | 3,009 | $156.33 | $470.4K | — | View → |
| Feb 3, 2026 | Feb 3 9:56 PM | Martina Flammer | Proposed Sale | 795 | $155.77 | $123.8K | — | View → |
| Feb 3, 2026 | Feb 3 9:55 PM | Sara Bonstein | Proposed Sale | 748 | $156.33 | $116.9K | — | View → |
| Feb 2, 2026 | Feb 2 10:30 PM | Martina Flammer | Proposed Sale | 7,982 | $154.59 | $1.2M | — | View → |
| Jan 20, 2026 | Jan 22 9:28 PM | William LewisDirector, Chair and CEO | Sale | 10,699 | $158.93 | $1.7M | 306,891(D) | View → |
| Jan 20, 2026 | Jan 20 9:33 PM | William Lewis | Proposed Sale | 10,699 | $158.93 | $1.7M | — | View → |
| Jan 12, 2026 | Jan 12 9:58 PM | William Lewis | Proposed Sale | 19,215 | $169.00 | $3.2M | — | View → |
| Jan 8, 2026 | Jan 8 10:40 PM | Sara Bonstein | Proposed Sale | 1,447 | $174.17 | $252.0K | — | View → |
| Jan 8, 2026 | Jan 8 10:35 PM | Martina Flammer | Proposed Sale | 5,138 | $174.17 | $894.9K | — | View → |
| Jan 8, 2026 | Jan 8 10:28 PM | Martina Flammer | Proposed Sale | 1,660 | $173.90 | $288.7K | — | View → |
| Jan 8, 2026 | Jan 8 10:23 PM | Roger Adsett | Proposed Sale | 2,059 | $174.17 | $358.6K | — | View → |
| Jan 8, 2026 | Jan 8 10:19 PM | Michael Smith | Proposed Sale | 1,053 | $174.17 | $183.4K | — | View → |
| Jan 8, 2026 | Jan 8 10:08 PM | William Lewis | Proposed Sale | 3,223 | $174.17 | $561.3K | — | View → |
| Jan 7, 2026 | Jan 7 10:10 PM | Roger Adsett | Proposed Sale | 802 | $175.07 | $140.4K | — | View → |
| Jan 7, 2026 | Jan 7 10:04 PM | Michael Smith | Proposed Sale | 709 | $175.07 | $124.1K | — | View → |
| Jan 7, 2026 | Jan 7 9:59 PM | William Lewis | Proposed Sale | 2,357 | $175.07 | $412.6K | — | View → |
| Jan 7, 2026 | Jan 7 9:42 PM | Sara Bonstein | Proposed Sale | 1,678 | $175.17 | $293.9K | — | View → |
| Jan 7, 2026 | Jan 7 9:42 PM | Martina Flammer | Proposed Sale | 1,434 | $175.84 | $252.2K | — | View → |
| Jan 6, 2026 | Jan 6 9:40 PM | Sara Bonstein | Proposed Sale | 1,517 | $173.33 | $262.9K | — | View → |
| Jan 6, 2026 | Jan 6 9:37 PM | Martina Flammer | Proposed Sale | 1,615 | $173.33 | $279.9K | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Jan 20, 2026 | Jan 22 9:28 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 53,280(D) | View → |
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