INSMED Inc
INSM
44 insider filings · Latest: Jun 25, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| 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 → |
| Feb 6, 2025 | Feb 6 10:56 PM | Wise John Drayton | Proposed Sale | 8,000 | $80.90 | $647.2K | — | View → |
| Feb 6, 2025 | Feb 6 10:43 PM | Smith Michael Alexander | Proposed Sale | 21,000 | $80.90 | $1.7M | — | View → |
| Feb 6, 2025 | Feb 6 10:39 PM | Schaeffer Orlov S Nicole | Proposed Sale | 61,000 | $80.90 | $4.9M | — | View → |
| Feb 6, 2025 | Feb 6 10:34 PM | Lewis William | Proposed Sale | 86,000 | $80.90 | $7.0M | — | View → |
| Feb 6, 2025 | Feb 6 10:25 PM | Flammer Martina M.D. | Proposed Sale | 33,500 | $80.90 | $2.7M | — | View → |
| Feb 6, 2025 | Feb 6 10:21 PM | Bonstein Sara | Proposed Sale | 29,000 | $80.90 | $2.3M | — | View → |
| Feb 6, 2025 | Feb 6 10:17 PM | Adsett Roger | Proposed Sale | 46,000 | $80.90 | $3.7M | — | View → |
| Feb 3, 2025 | Feb 3 9:35 PM | Lewis William | Proposed Sale | 25,580 | $77.91 | $2.0M | — | View → |
| Jan 30, 2025 | Jan 30 9:28 PM | Schaeffer Orlov S Nicole | Proposed Sale | 91,140 | $80.00 | $7.3M | — | View → |
| Jan 15, 2025 | Jan 15 10:17 PM | Lewis William | Proposed Sale | 38,635 | $70.17 | $2.7M | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Jun 25, 2026 | Jun 26 8:03 PM | William LewisDirector, Chair and CEO | Option Exercise | 21,398 | $30.46 | 8,880(D) | View → |
| Jun 23, 2026 | Jun 24 8:15 PM | Samuele ButeraSVP, GM, Global Respiratory | Grant/Award | 12,570 | $102.15 | 12,570(D) | View → |
| May 18, 2026 | May 20 8:06 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 17,760(D) | View → |
| May 11, 2026 | May 13 8:50 PM | Martina M.D. FlammerChief Medical Officer | Option Exercise | 12,949 | $17.07 | 0(D) | View → |
| May 4, 2026 | May 6 8:11 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 22,200(D) | View → |
| Apr 16, 2026 | Apr 17 8:43 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 26,640(D) | View → |
| Apr 6, 2026 | Apr 8 8:41 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 31,080(D) | View → |
| Apr 1, 2026 | Apr 3 8:07 PM | Roger AdsettChief Operating Officer | Option Exercise | 88,060 | $14.56 | 0(D) | View → |
| Mar 30, 2026 | Mar 31 8:13 PM | Michael Alexander SmithChief Legal Officer | Option Exercise | 19,638 | $27.89 | 18,561(D) | View → |
| Mar 19, 2026 | Mar 20 8:05 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 35,520(D) | View → |
| Mar 5, 2026 | Mar 5 9:16 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 39,960(D) | View → |
| Feb 24, 2026 | Feb 25 9:04 PM | Michael Alexander SmithChief Legal Officer | Option Exercise | 20,248 | $17.07 | 14,282(D) | View → |
| Feb 19, 2026 | Feb 23 9:34 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 44,400(D) | View → |
| Feb 9, 2026 | Feb 11 9:42 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 68,850(D) | View → |
| Feb 2, 2026 | Feb 4 9:15 PM | Martina M.D. FlammerChief Medical Officer | Option Exercise | 7,982 | $65.72 | 23,948(D) | View → |
| Jan 20, 2026 | Jan 22 9:28 PM | William LewisDirector, Chair and CEO | Option Exercise | 10,699 | $30.46 | 53,280(D) | View → |