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INSMNasdaq
INSMED Inc
Pharmaceutical Preparations · VA · CIK 1104506
INSMED Inc develops and commercializes therapies for serious diseases in respiratory, immunology, and rare conditions
$21.21B
Market cap
$104.74
Last close
+1.3%
1D
+6.2%
5D
2.7M
Volume
Price · last 39 sessions-25.2%
May 4L $91.88 · H $140.01Jun 29
202
Total filings
May 15, 2026
Last filing
12/31
Fiscal year end
424B5424B5Jun 12, 2025424B5424B5Jun 11, 2025424B5424B5May 30, 2024424B5424B5May 29, 2024424B5424B5Feb 22, 2024424B5424B5Oct 19, 2022424B5424B5May 12, 2021424B5424B5May 12, 2021424B5424B5May 10, 2021424B5424B5May 10, 2021424B5424B5Feb 25, 2021424B5424B5May 5, 2020424B5424B5May 4, 2020424B5424B5May 23, 2019424B5424B5May 20, 2019424B5424B5Jan 24, 2018424B5424B5Jan 22, 2018424B5424B5Sep 7, 2017424B5424B5Sep 5, 2017
Insider Activity
In the 90 days to Mar 30, 2026: 6 sold $45.2M.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 30, 2026 | Smith Michael AlexanderChief Legal Officer | Sell | 19,638 | $150.98 | $3.0M |
| Mar 19, 2026 | Lewis WilliamChair and CEO | Sell | 4,533 | $144.11 | $653K |
| Mar 19, 2026 | Lewis WilliamChair and CEO | Sell | 4,537 | $143.42 | $651K |
| Mar 19, 2026 | Lewis WilliamChair and CEO | Sell | 1,629 | $142.17 | $232K |
| Mar 5, 2026 | Lewis WilliamChair and CEO | Sell | 3,899 | $146.66 | $572K |
| Mar 5, 2026 | Lewis WilliamChair and CEO | Sell | 2,589 | $145.27 | $376K |
| Mar 5, 2026 | Lewis WilliamChair and CEO | Sell | 2,128 | $147.54 | $314K |
| Mar 5, 2026 | Lewis WilliamChair and CEO | Sell | 2,083 | $144.23 | $300K |
| Feb 24, 2026 | Smith Michael AlexanderChief Legal Officer | Sell | 15,771 | $156.53 | $2.5M |
| Feb 24, 2026 | Smith Michael AlexanderChief Legal Officer | Sell | 4,852 | $153.93 | $747K |
| Feb 24, 2026 | Smith Michael AlexanderChief Legal Officer | Sell | 4,151 | $155.06 | $644K |
| Feb 19, 2026 | Lewis WilliamChair and CEO | Sell | 3,413 | $151.12 | $516K |
| Feb 19, 2026 | Lewis WilliamChair and CEO | Sell | 2,377 | $151.92 | $361K |
| Feb 19, 2026 | Lewis WilliamChair and CEO | Sell | 1,988 | $149.17 | $297K |
| Feb 19, 2026 | Lewis WilliamChair and CEO | Sell | 1,891 | $150.10 | $284K |
| Feb 19, 2026 | Lewis WilliamChair and CEO | Sell | 1,030 | $153.38 | $158K |
| Feb 9, 2026 | Lewis WilliamChair and CEO | Sell | 7,221 | $148.02 | $1.1M |
| Feb 9, 2026 | Lewis WilliamChair and CEO | Sell | 4,888 | $147.17 | $719K |
| Feb 9, 2026 | Lewis WilliamChair and CEO | Sell | 1,287 | $148.83 | $192K |
| Feb 5, 2026 | Flammer Martina M.D.Chief Medical Officer | Sell | 869 | $152.44 | $132K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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