Insmed Incorporated
Last updated September 27, 2026
Organization details
- Legal name
- Insmed Incorporated
- Ownership
- Public
- Status
- Active
- Headquarters country
- United States
- Ticker symbol
- INSM
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001104506
Board of directors
-
Alfred Altomari · DirectorSince 2023
-
Carol Schafer · DirectorSince 2023
-
Clarissa Desjardins · DirectorSince 2023
-
David R. Brennan · DirectorSince 2023
-
David W. J. Mcgirr · DirectorSince 2023
-
Elizabeth M. Anderson · DirectorSince 2023
-
Leo Lee · DirectorSince 2023
-
Melvin Sharoky M.D. · DirectorSince 2023
-
William Lewis · Director · Chair and CEOSince 2023
Chief executives
William Lewis
· Chair and CEO
Dates unknown
Board connections
4 of this board's directors also sit on 7 other boards.
- via Elizabeth M. Anderson
- via Carol Schafer
- via Carol Schafer
- via William Lewis
- via Elizabeth M. Anderson
- via David W. J. Mcgirr
- via David W. J. Mcgirr
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $167,122,953
- 169 sales by 10 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 9, 2026 | David R. Brennan Director | Open-market sale | −25,000 | $124.00 | $3,100,000 |
| Aug 17, 2026 | Melvin Sharoky M.D. Director | Open-market sale | −5,000 | $127.53 | $637,650 |
| Aug 10, 2026 | Roger Adsett Officer (Chief Operating Officer) | Option exercise | +82,280 | $13.67 | $1,124,768 |
| Aug 10, 2026 | Roger Adsett Officer (Chief Operating Officer) | Option exercise | +76,600 | $17.16 | $1,314,456 |
| Aug 10, 2026 | Roger Adsett Officer (Chief Operating Officer) | Option exercise | +80,970 | $30.46 | $2,466,346 |
| Aug 10, 2026 | Roger Adsett Officer (Chief Operating Officer) | Open-market sale | −239,850 | $133.27 | $31,964,810 |
| Aug 6, 2026 | Flammer Martina M.D. Officer (Chief Medical Officer) | Option exercise | +18,278 | $18.95 | $346,368 |
| Aug 6, 2026 | Flammer Martina M.D. Officer (Chief Medical Officer) | Option exercise | +8,895 | $25.83 | $229,758 |
| Aug 6, 2026 | Flammer Martina M.D. Officer (Chief Medical Officer) | Open-market sale | −8,895 | $127.00 | $1,129,665 |
| Aug 6, 2026 | Flammer Martina M.D. Officer (Chief Medical Officer) | Open-market sale | −18,278 | $129.40 | $2,365,173 |
| Jul 23, 2026 | William Lewis Director, Officer (Chair and CEO) | Option exercise | +6,260 | $30.46 | $190,680 |
| Jul 23, 2026 | William Lewis Director, Officer (Chair and CEO) | Option exercise | +4,440 | $17.16 | $76,190 |
| Jul 23, 2026 | William Lewis Director, Officer (Chair and CEO) | Open-market sale | −4,828 | $105.62 | $509,933 |
| Jul 23, 2026 | William Lewis Director, Officer (Chair and CEO) | Open-market sale | −5,872 | $106.43 | $624,957 |
| Jul 9, 2026 | William Lewis Director, Officer (Chair and CEO) | Option exercise | +6,259 | $30.46 | $190,649 |
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