INSMED Inc
INSM
49 insider filings · Latest: Aug 10, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Feb 24, 2026 | Feb 25 9:04 PM | Michael Alexander SmithChief Legal Officer | Sale | 24,774 | $155.77 | $3.9M | 51,871(D) | View → |
| Feb 24, 2026 | Feb 24 9:33 PM | Michael Smith | Proposed Sale | 24,774 | $155.77 | $3.9M | — | View → |
| Feb 19, 2026 | Feb 23 9:34 PM | William LewisDirector, Chair and CEO | Sale | 10,699 | $150.97 | $1.6M | 301,185(D) | View → |
| Feb 19, 2026 | Feb 19 9:54 PM | William Lewis | Proposed Sale | 10,699 | $150.97 | $1.6M | — | View → |
| Feb 9, 2026 | Feb 11 9:42 PM | William LewisDirector, Chair and CEO | Sale | 13,396 | $147.79 | $2.0M | 301,185(D) | View → |
| Feb 9, 2026 | Feb 9 10:32 PM | William Lewis | Proposed Sale | 13,396 | $147.79 | $2.0M | — | View → |
| Feb 5, 2026 | Feb 6 9:18 PM | Martina M.D. FlammerChief Medical Officer | Sale | 869 | $152.44 | $132.5K | 83,243(D) | View → |
| Feb 5, 2026 | Feb 5 10:12 PM | Martina Flammer | Proposed Sale | 869 | $152.43 | $132.5K | — | View → |
| Feb 3, 2026 | Feb 4 9:20 PM | Roger AdsettChief Operating Officer | Sale | 791 | $156.17 | $123.5K | 106,810(D) | View → |
| Feb 3, 2026 | Feb 4 9:19 PM | Sara BonsteinChief Financial Officer | Sale | 748 | $156.34 | $116.9K | 79,758(D) | View → |
| Feb 3, 2026 | Feb 4 9:17 PM | William LewisDirector, Chair and CEO | Sale | 3,009 | $156.34 | $470.4K | 303,882(D) | View → |
| Feb 3, 2026 | Feb 4 9:15 PM | Michael Alexander SmithChief Legal Officer | Sale | 640 | $156.27 | $100.0K | 56,397(D) | View → |
| Feb 3, 2026 | Feb 4 9:15 PM | Martina M.D. FlammerChief Medical Officer | Sale | 795 | $155.77 | $123.8K | 84,112(D) | View → |
| Feb 2, 2026 | Feb 4 9:15 PM | Martina M.D. FlammerChief Medical Officer | Sale | 7,982 | $154.59 | $1.2M | 84,907(D) | View → |
| Feb 3, 2026 | Feb 3 10:04 PM | Roger Adsett | Proposed Sale | 791 | $156.16 | $123.5K | — | View → |
| Feb 3, 2026 | Feb 3 10:02 PM | Michael Smith | Proposed Sale | 640 | $156.27 | $100.0K | — | View → |
| 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 → |
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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