INSM · Insmed Incorporated Common Stock
View on chartInsiders & Stakes
| ENGELSEN STEINAR J | ▲ Buy | Open Market | 320,802 Shares held | 11/1/2021 | View profile |
| William Lewis | ▼ Sell | Open Market | 259,058 Shares held | 7/23/2026 | View profile |
| Wise John Drayton Chief Commercial Officer | ▼ Sell | Open Market | 133,015 Shares held | 2/7/2025 | View profile |
| Roger Adsett | ▼ Sell | Open Market | 98,744 Shares held | 8/10/2026 | View profile |
| Clarissa Desjardins Director | ▲ Buy | Grant | 70,312 Shares held | 5/13/2026 | View profile |
| ALTOMARI ALFRED | ▲ Buy | Grant | 69,495 Shares held | 5/13/2024 | View profile |
| Sara Bonstein Chief Financial Officer | ▼ Sell | Open Market | 69,082 Shares held | 6/3/2026 | View profile |
| Carol Schafer Director | ▲ Buy | Grant | 66,622 Shares held | 5/13/2026 | View profile |
| David R. Brennan Director | ▲ Buy | Grant | 64,238 Shares held | 5/13/2026 | View profile |
| Elizabeth M. Anderson | ▲ Buy | Grant | 62,034 Shares held | 5/13/2026 | View profile |
| Martina M.D. Flammer Chief Medical Officer | ▼ Sell | Open Market | 60,486 Shares held | 8/6/2026 | View profile |
| Leo Lee Director | ▲ Buy | Grant | 57,971 Shares held | 5/13/2026 | View profile |
| David W. J. McGirr Director | ▼ Sell | Gift | 53,400 Shares held | 2/9/2026 | View profile |
| Schaeffer Orlov S Nicole Chief People Strategy Officer | ▼ Sell | Open Market | 41,754 Shares held | 1/2/2026 | View profile |
| Michael Alexander Smith General Counsel, Senior VP | ▼ Sell | Open Market | 37,648 Shares held | 6/22/2026 | View profile |
| SORIANO JOHN Chief Compliance Officer | ▼ Sell | Open Market | 35,204 Shares held | 9/7/2021 | View profile |
| Samuele Butera SVP, GM, Global Respiratory | ▲ Buy | Grant | 7,342 Shares held | 6/23/2026 | View profile |
| Melvin Sharoky, MD Director | ▼ Sell | Open Market | 0 Shares held | 8/17/2026 | View profile |
Transaction History
| Melvin Sharoky, MD | ▼ Sell | Open Market | 5,000 | $638K | 8/17/2026 |
| Roger Adsett | ▲ Buy | Option Exercise | 82,280 | $1.1M | 8/10/2026 |
| Roger Adsett | ▲ Buy | Option Exercise | 76,600 | $1.3M | 8/10/2026 |
| Roger Adsett | ▲ Buy | Option Exercise | 80,970 | $2.5M | 8/10/2026 |
| Roger Adsett | ▼ Sell | Open Market | 239,850 | $32.0M | 8/10/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 18,278 | $346K | 8/6/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 8,895 | $230K | 8/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 8,895 | $1.1M | 8/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 18,278 | $2.4M | 8/6/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,260 | $191K | 7/23/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 7/23/2026 |
| William Lewis | ▼ Sell | Open Market | 4,828 | $510K | 7/23/2026 |
| William Lewis | ▼ Sell | Open Market | 5,872 | $625K | 7/23/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 7/9/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 7/9/2026 |
| William Lewis | ▼ Sell | Open Market | 5,005 | $583K | 7/9/2026 |
| William Lewis | ▼ Sell | Open Market | 2,335 | $275K | 7/9/2026 |
| William Lewis | ▼ Sell | Open Market | 3,359 | $398K | 7/9/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 7,945 | $231K | 7/6/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 4,357 | $86K | 7/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 4,854 | $529K | 7/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 7,448 | $824K | 7/6/2026 |
| William Lewis | ▲ Buy | Option Exercise | 12,518 | $381K | 6/25/2026 |
| William Lewis | ▲ Buy | Option Exercise | 8,880 | $152K | 6/25/2026 |
| William Lewis | ▼ Sell | Open Market | 12,091 | $1.2M | 6/25/2026 |
| William Lewis | ▼ Sell | Open Market | 1,836 | $189K | 6/25/2026 |
| William Lewis | ▼ Sell | Open Market | 3,723 | $388K | 6/25/2026 |
| William Lewis | ▼ Sell | Open Market | 2,456 | $259K | 6/25/2026 |
| William Lewis | ▼ Sell | Open Market | 1,292 | $137K | 6/25/2026 |
| Samuele Butera | ▲ Buy | Grant | 7,342 | — | 6/23/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 1,806 | $173K | 6/22/2026 |
| William Lewis | ▼ Sell | Open Market | 6,515 | $613K | 6/8/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,858 | $193K | 6/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 2,566 | $262K | 6/3/2026 |
| Roger Adsett | ▼ Sell | Open Market | 2,370 | $242K | 6/3/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 2,404 | $246K | 6/3/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 2,159 | $221K | 6/3/2026 |
| William Lewis | ▼ Sell | Open Market | 7,605 | $778K | 6/3/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 6,149 | $667K | 5/22/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 5/18/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 5/18/2026 |
| William Lewis | ▼ Sell | Open Market | 5,753 | $606K | 5/18/2026 |
| William Lewis | ▼ Sell | Open Market | 11,836 | $1.3M | 5/18/2026 |
| William Lewis | ▼ Sell | Open Market | 7,975 | $853K | 5/18/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 10,479 | $1.2M | 5/14/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 8,272 | $961K | 5/13/2026 |
| Roger Adsett | ▼ Sell | Open Market | 5,837 | $678K | 5/13/2026 |
| Elizabeth M. Anderson | ▲ Buy | Grant | 3,305 | — | 5/13/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 4,470 | $504K | 5/13/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 3,384 | $393K | 5/13/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 4,109 | $477K | 5/13/2026 |
| David R. Brennan | ▲ Buy | Grant | 3,305 | — | 5/13/2026 |
| Clarissa Desjardins | ▲ Buy | Grant | 3,305 | — | 5/13/2026 |
| Leo Lee | ▲ Buy | Grant | 3,305 | — | 5/13/2026 |
| William Lewis | ▼ Sell | Open Market | 13,283 | $1.5M | 5/13/2026 |
| Melvin Sharoky, MD | ▲ Buy | Grant | 3,305 | — | 5/13/2026 |
| Carol Schafer | ▲ Buy | Grant | 3,305 | — | 5/13/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 12,949 | $221K | 5/11/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 12,119 | $1.2M | 5/11/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 830 | $84K | 5/11/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 5/4/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 5/4/2026 |
| William Lewis | ▼ Sell | Open Market | 433 | $58K | 5/4/2026 |
| William Lewis | ▼ Sell | Open Market | 599 | $81K | 5/4/2026 |
| William Lewis | ▼ Sell | Open Market | 5,318 | $729K | 5/4/2026 |
| William Lewis | ▼ Sell | Open Market | 2,721 | $375K | 5/4/2026 |
| William Lewis | ▼ Sell | Open Market | 1,247 | $173K | 5/4/2026 |
| William Lewis | ▼ Sell | Open Market | 381 | $53K | 5/4/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 4/16/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 4/16/2026 |
| William Lewis | ▼ Sell | Open Market | 2,246 | $321K | 4/16/2026 |
| William Lewis | ▼ Sell | Open Market | 5,373 | $773K | 4/16/2026 |
| William Lewis | ▼ Sell | Open Market | 2,255 | $326K | 4/16/2026 |
| William Lewis | ▼ Sell | Open Market | 825 | $120K | 4/16/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 4/6/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 4/6/2026 |
| William Lewis | ▼ Sell | Open Market | 787 | $127K | 4/6/2026 |
| William Lewis | ▼ Sell | Open Market | 8,478 | $1.4M | 4/6/2026 |
| William Lewis | ▼ Sell | Open Market | 1,434 | $235K | 4/6/2026 |
| Roger Adsett | ▲ Buy | Option Exercise | 88,060 | $1.3M | 4/1/2026 |
| Roger Adsett | ▼ Sell | Open Market | 6,715 | $1.1M | 4/1/2026 |
| Roger Adsett | ▼ Sell | Open Market | 19,001 | $3.1M | 4/1/2026 |
| Roger Adsett | ▼ Sell | Open Market | 62,344 | $10.3M | 4/1/2026 |
| Michael Alexander Smith | ▲ Buy | Option Exercise | 5,649 | $96K | 3/30/2026 |
| Michael Alexander Smith | ▲ Buy | Option Exercise | 13,989 | $390K | 3/30/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 19,638 | $3.0M | 3/30/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 3/19/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 3/19/2026 |
| William Lewis | ▼ Sell | Open Market | 1,629 | $232K | 3/19/2026 |
| William Lewis | ▼ Sell | Open Market | 4,537 | $651K | 3/19/2026 |
| William Lewis | ▼ Sell | Open Market | 4,533 | $653K | 3/19/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 3/5/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 3/5/2026 |
| William Lewis | ▼ Sell | Open Market | 2,083 | $300K | 3/5/2026 |
| William Lewis | ▼ Sell | Open Market | 2,589 | $376K | 3/5/2026 |
| William Lewis | ▼ Sell | Open Market | 3,899 | $572K | 3/5/2026 |
| William Lewis | ▼ Sell | Open Market | 2,128 | $314K | 3/5/2026 |
| Melvin Sharoky, MD | ▼ Sell | Gift | 100 | $0 | 3/3/2026 |
| Melvin Sharoky, MD | ▼ Sell | Gift | 1,072 | $0 | 2/25/2026 |
| Melvin Sharoky, MD | ▼ Sell | Gift | 243 | $0 | 2/25/2026 |
| Melvin Sharoky, MD | ▼ Sell | Gift | 243 | $0 | 2/25/2026 |
| Melvin Sharoky, MD | ▼ Sell | Gift | 243 | $0 | 2/25/2026 |
| Melvin Sharoky, MD | ▼ Sell | Gift | 243 | $0 | 2/25/2026 |
| Michael Alexander Smith | ▲ Buy | Option Exercise | 20,248 | $346K | 2/24/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 4,852 | $747K | 2/24/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 4,151 | $644K | 2/24/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 15,771 | $2.5M | 2/24/2026 |
| David R. Brennan | ▼ Sell | Gift | 6,000 | $0 | 2/23/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 2/19/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 2/19/2026 |
| William Lewis | ▼ Sell | Open Market | 1,988 | $297K | 2/19/2026 |
| William Lewis | ▼ Sell | Open Market | 1,891 | $284K | 2/19/2026 |
| William Lewis | ▼ Sell | Open Market | 3,413 | $516K | 2/19/2026 |
| William Lewis | ▼ Sell | Open Market | 2,377 | $361K | 2/19/2026 |
| William Lewis | ▼ Sell | Open Market | 1,030 | $158K | 2/19/2026 |
| David W. J. McGirr | ▼ Sell | Gift | 53,400 | $0 | 2/9/2026 |
| David W. J. McGirr | ▼ Sell | Gift | 53,400 | $0 | 2/9/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 2/9/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 2/9/2026 |
| William Lewis | ▼ Sell | Open Market | 4,888 | $719K | 2/9/2026 |
| William Lewis | ▼ Sell | Open Market | 7,221 | $1.1M | 2/9/2026 |
| William Lewis | ▼ Sell | Open Market | 1,287 | $192K | 2/9/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 869 | $132K | 2/5/2026 |
| Roger Adsett | ▼ Sell | Open Market | 791 | $124K | 2/3/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 748 | $117K | 2/3/2026 |
| William Lewis | ▼ Sell | Open Market | 3,009 | $470K | 2/3/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 640 | $100K | 2/3/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 795 | $124K | 2/3/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 7,982 | $525K | 2/2/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 563 | $86K | 2/2/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 928 | $142K | 2/2/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 3,349 | $518K | 2/2/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 3,042 | $473K | 2/2/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 100 | $16K | 2/2/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 1/20/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 1/20/2026 |
| William Lewis | ▼ Sell | Open Market | 1,006 | $158K | 1/20/2026 |
| William Lewis | ▼ Sell | Open Market | 1,243 | $197K | 1/20/2026 |
| William Lewis | ▼ Sell | Open Market | 5,967 | $949K | 1/20/2026 |
| William Lewis | ▼ Sell | Open Market | 2,229 | $356K | 1/20/2026 |
| William Lewis | ▼ Sell | Open Market | 254 | $41K | 1/20/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 1/12/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 1/12/2026 |
| William Lewis | ▼ Sell | Open Market | 3,974 | $667K | 1/12/2026 |
| William Lewis | ▼ Sell | Open Market | 7,176 | $1.2M | 1/12/2026 |
| William Lewis | ▼ Sell | Open Market | 6,996 | $1.2M | 1/12/2026 |
| William Lewis | ▼ Sell | Open Market | 160 | $27K | 1/12/2026 |
| William Lewis | ▼ Sell | Open Market | 297 | $51K | 1/12/2026 |
| William Lewis | ▼ Sell | Open Market | 297 | $51K | 1/12/2026 |
| William Lewis | ▼ Sell | Open Market | 315 | $55K | 1/12/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,887 | $351K | 1/9/2026 |
| Roger Adsett | ▼ Sell | Open Market | 2,059 | $359K | 1/8/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 1,447 | $252K | 1/8/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,660 | $289K | 1/8/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 3,251 | $566K | 1/8/2026 |
| William Lewis | ▼ Sell | Open Market | 3,223 | $561K | 1/8/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 1,053 | $183K | 1/8/2026 |
| Roger Adsett | ▼ Sell | Open Market | 802 | $140K | 1/7/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 1,678 | $294K | 1/7/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,434 | $252K | 1/7/2026 |
| William Lewis | ▼ Sell | Open Market | 2,357 | $413K | 1/7/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 709 | $124K | 1/7/2026 |
| Roger Adsett | ▼ Sell | Open Market | 1,429 | $248K | 1/6/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 1,517 | $263K | 1/6/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 8,570 | $227K | 1/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 4,783 | $830K | 1/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 2,830 | $493K | 1/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 957 | $167K | 1/6/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,615 | $280K | 1/6/2026 |
| William Lewis | ▼ Sell | Open Market | 4,096 | $710K | 1/6/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 1,396 | $242K | 1/6/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 4,358 | $86K | 1/5/2026 |
| Martina M.D. Flammer | ▲ Buy | Option Exercise | 7,945 | $231K | 1/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 2,799 | $474K | 1/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 3,205 | $547K | 1/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 2,836 | $485K | 1/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 286 | $49K | 1/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,820 | $316K | 1/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 655 | $114K | 1/5/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 702 | $123K | 1/5/2026 |
| Sara Bonstein | ▲ Buy | Grant | 5,998 | — | 1/2/2026 |
| Sara Bonstein | ▲ Buy | Grant | 5,645 | — | 1/2/2026 |
| William Lewis | ▲ Buy | Grant | 21,172 | — | 1/2/2026 |
| Martina M.D. Flammer | ▲ Buy | Grant | 5,998 | — | 1/2/2026 |
| Martina M.D. Flammer | ▲ Buy | Grant | 5,645 | — | 1/2/2026 |
| Michael Alexander Smith | ▲ Buy | Grant | 5,293 | — | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▲ Buy | Grant | 5,293 | — | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▲ Buy | Option Exercise | 87,290 | $1.2M | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▼ Sell | Open Market | 31,030 | $5.4M | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▼ Sell | Open Market | 34,103 | $6.0M | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▼ Sell | Open Market | 12,832 | $2.3M | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▼ Sell | Open Market | 9,125 | $1.6M | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▼ Sell | Open Market | 200 | $36K | 1/2/2026 |
| Roger Adsett | ▲ Buy | Grant | 5,998 | — | 1/2/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 12/18/2025 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 12/18/2025 |
| William Lewis | ▼ Sell | Open Market | 350 | $57K | 12/18/2025 |
| William Lewis | ▼ Sell | Open Market | 1,465 | $239K | 12/18/2025 |
| William Lewis | ▼ Sell | Open Market | 447 | $73K | 12/18/2025 |
| William Lewis | ▼ Sell | Open Market | 697 | $115K | 12/18/2025 |