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 Chair and CEO | ▼ 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 Chief Operating Officer | ▼ Sell | Open Market | 98,744 Shares held | 8/10/2026 | View profile |
| Clarissa Desjardins | ▲ 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 | ▲ Buy | Grant | 66,622 Shares held | 5/13/2026 | View profile |
| Elizabeth M. Anderson Director | ▲ 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 | ▲ 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 |
| David R. Brennan Director | ▼ Sell | Open Market | 39,238 Shares held | 9/9/2026 | 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 | ▼ Sell | Open Market | 0 Shares held | 8/17/2026 | View profile |
Transaction History
| David R. Brennan | ▼ Sell | Open Market | 25,000 | $3.1M | 9/9/2026 |
| 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 |
| 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 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 2,566 | $262K | 6/3/2026 |
| Michael Alexander Smith | ▼ Sell | Open Market | 6,149 | $667K | 5/22/2026 |
| 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 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 5/18/2026 |
| William Lewis | ▲ Buy | Option Exercise | 4,440 | $76K | 5/18/2026 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 10,479 | $1.2M | 5/14/2026 |
| 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 |
| David R. Brennan | ▲ Buy | Grant | 3,305 | — | 5/13/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 8,272 | $961K | 5/13/2026 |
| Carol Schafer | ▲ Buy | Grant | 3,305 | — | 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 |
| Melvin Sharoky, MD | ▲ 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 | 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 | 1,072 | $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 |
| 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 |
| 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 |
| 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 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 795 | $124K | 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 | 100 | $16K | 2/2/2026 |
| 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 |
| William Lewis | ▼ Sell | Open Market | 254 | $41K | 1/20/2026 |
| 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 | ▲ Buy | Option Exercise | 4,440 | $76K | 1/12/2026 |
| William Lewis | ▲ Buy | Option Exercise | 6,259 | $191K | 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 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,434 | $252K | 1/7/2026 |
| Roger Adsett | ▼ Sell | Open Market | 802 | $140K | 1/7/2026 |
| Sara Bonstein | ▼ Sell | Open Market | 1,678 | $294K | 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 |
| Martina M.D. Flammer | ▼ Sell | Open Market | 1,615 | $280K | 1/6/2026 |
| 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 |
| 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 |
| William Lewis | ▲ Buy | Grant | 21,172 | — | 1/2/2026 |
| Schaeffer Orlov S Nicole | ▼ Sell | Open Market | 200 | $36K | 1/2/2026 |
| Sara Bonstein | ▲ Buy | Grant | 5,645 | — | 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 |
| Roger Adsett | ▲ Buy | Grant | 5,998 | — | 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 |
| William Lewis | ▼ Sell | Open Market | 697 | $115K | 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 | 1,783 | $297K | 12/18/2025 |
AI Market Commentary
AI-generatedAll commentary →Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.
October 17, 2026
Wolfe Research Downgrades Insmed to Peer Perform Ahead of CHEST 2026
Wolfe Research lowered its rating on Insmed to Peer Perform, joining a wave of recent analyst downgrades. This move comes as the company prepares to present new data for its respiratory portfolio, including the Phase 3 PALM program, at the CHEST 2026 conference. While the stock is currently trading near its 52-week low, other analysts like HC Wainwright remain bullish with a $220 price target.
Wolfe Research Downgrades Insmed to Peer Perform Ahead of CHEST 2026. Wolfe Research lowered its rating on Insmed to Peer Perform, joining a wave of recent analyst downgrades. This move comes as the company prepares to present new data for its respiratory portfolio, including the Phase 3 PALM program, at the CHEST 2026 conference. While the stock is currently trading near its 52-week low, other analysts like HC Wainwright remain bullish with a $220 price target.