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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
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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