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NASDAQ: INSM
Insmed Inc Stock Ownership - Who owns Insmed?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Insmed Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Melvin Md SharokyDirector2025-08-2010,000$129.50
$1.30MSell
Roger AdsettChief Operating Officer2025-08-194,807$128.27
$616.59kSell
Roger AdsettChief Operating Officer2025-08-1920,193$127.42
$2.57MSell
William LewisChair and CEO2025-08-181,416$129.47
$183.33kSell
William LewisChair and CEO2025-08-182,481$128.76
$319.45kSell
William LewisChair and CEO2025-08-182,968$127.59
$378.69kSell
William LewisChair and CEO2025-08-186,865$10.85
$74.49kBuy
Orlov S. Nicole SchaefferChief People Strategy Officer2025-08-145,746$127.71
$733.82kSell
Orlov S. Nicole SchaefferChief People Strategy Officer2025-08-14700$128.16
$89.71kSell
Orlov S. Nicole SchaefferChief People Strategy Officer2025-08-143,554$126.57
$449.83kSell

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Net Insider Buy/Sell (L12M) Ownership

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INSM Shareholders

What type of owners hold Insmed Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Richard S. Kollender12.04%21,924,540$2.98BInsider
Darwin Global Management Ltd10.62%19,344,621$2.63BInstitution
Vanguard Group Inc9.69%17,644,492$2.40BInstitution
Jpmorgan Chase Co8.58%15,636,399$2.13BInstitution
Price T Rowe Associates Inc6.17%11,230,705$1.53BInstitution
Blackrock Inc6.12%11,142,432$1.52BInstitution
Baker Bros Advisors LP4.23%7,712,900$1.05BInstitution
Capital International Investors4.11%7,478,859$1.02BInstitution
Fmr LLC2.80%5,093,261$693.19MInstitution
State Street Corp2.35%4,277,888$582.22MInstitution

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INSM vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
INSM84.81%15.19%Net SellingNet Selling
BNTX22.36%0.00%
RPRX58.59%17.24%Net SellingNet Selling
UTHR87.43%12.57%Net SellingNet Buying
SMMT7.22%92.78%Net Buying
View Top Biotech Stocks

Insmed Stock Ownership FAQ

Who owns Insmed?

Insmed (NASDAQ: INSM) is owned by 115.50% institutional shareholders, 20.69% Insmed insiders, and 0.00% retail investors. Richard S. Kollender is the largest individual Insmed shareholder, owning 21.92M shares representing 12.04% of the company. Richard S. Kollender's Insmed shares are currently valued at $3.19B.

If you're new to stock investing, here's how to buy Insmed stock.
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