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 |
|---|---|---|---|---|---|---|---|---|
| May 14, 2025 | May 14 9:45 PM | Lewis William | Proposed Sale | 3,771 | $65.61 | $247.4K | — | View → |
| May 14, 2025 | May 14 9:39 PM | Flammer Martina M.D. | Proposed Sale | 1,744 | $65.61 | $114.4K | — | View → |
| May 14, 2025 | May 14 9:35 PM | Bonstein Sara | Proposed Sale | 1,634 | $65.61 | $107.2K | — | View → |
| May 14, 2025 | May 14 9:30 PM | Adsett Roger | Proposed Sale | 1,925 | $65.61 | $126.3K | — | View → |
| May 13, 2025 | May 13 9:44 PM | Lewis William | Proposed Sale | 17,442 | $67.81 | $1.2M | — | View → |
| May 13, 2025 | May 13 9:35 PM | Bonstein Sara | Proposed Sale | 8,870 | $67.81 | $601.5K | — | View → |
| May 13, 2025 | May 13 9:32 PM | Flammer Martina M.D. | Proposed Sale | 8,408 | $67.81 | $570.1K | — | View → |
| May 13, 2025 | May 13 9:29 PM | Adsett Roger | Proposed Sale | 7,482 | $67.81 | $507.4K | — | View → |
| May 13, 2025 | May 13 9:18 PM | Schaeffer Orlov S Nicole | Proposed Sale | 4,999 | $67.81 | $339.0K | — | View → |
| May 13, 2025 | May 13 9:12 PM | Wise John Drayton | Proposed Sale | 4,610 | $67.81 | $312.6K | — | View → |
| May 13, 2025 | May 13 9:03 PM | Smith Michael Alexander | Proposed Sale | 4,407 | $67.81 | $298.8K | — | View → |
| May 1, 2025 | May 1 8:33 PM | Lewis William | Proposed Sale | 6,830 | $72.54 | $495.4K | — | View → |
| Apr 15, 2025 | Apr 15 8:41 PM | Lewis William | Proposed Sale | 6,830 | $70.12 | $478.9K | — | View → |
| Apr 1, 2025 | Apr 1 8:48 PM | Lewis William | Proposed Sale | 6,830 | $73.55 | $502.4K | — | View → |
| Mar 17, 2025 | Mar 17 9:03 PM | Lewis William | Proposed Sale | 25,580 | $77.00 | $2.0M | — | View → |
| Mar 3, 2025 | Mar 3 10:53 PM | Lewis William | Proposed Sale | 25,580 | $77.75 | $2.0M | — | View → |
| Feb 18, 2025 | Feb 18 10:31 PM | Lewis William | Proposed Sale | 25,580 | $81.00 | $2.1M | — | View → |
| Feb 11, 2025 | Feb 11 9:42 PM | Bonstein Sara | Proposed Sale | 36,643 | $80.00 | $2.9M | — | View → |
| Feb 10, 2025 | Feb 10 9:52 PM | Flammer Martina M.D. | Proposed Sale | 37,828 | $78.57 | $3.0M | — | View → |
| Feb 10, 2025 | Feb 10 9:45 PM | Adsett Roger | Proposed Sale | 42,975 | $78.57 | $3.4M | — | 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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