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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
David R. BrennanDirector2026-09-0925,000$124.00
$3.10MSell
Melvin Md SharokyDirector2026-08-175,000$127.53
$637.65kSell
Roger AdsettCOO2026-08-1082,280$13.67
$1.12MBuy
Roger AdsettCOO2026-08-10239,850$133.27
$31.96MSell
Roger AdsettCOO2026-08-1080,970$30.46
$2.47MBuy
Roger AdsettCOO2026-08-1076,600$17.16
$1.31MBuy
Martina Md FlammerMed2026-08-0618,278$18.95
$346.37kBuy
Martina Md FlammerMed2026-08-068,895$25.83
$229.76kBuy
Martina Md FlammerMed2026-08-068,895$127.00
$1.13MSell
Martina Md FlammerMed2026-08-0618,278$129.40
$2.37MSell

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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. Kollender9.99%21,924,540$2.59BInsider
Fmr LLC1.73%3,785,818$446.99MInsider
Ayer Capital Management LP1.42%3,116,100$367.92MInsider
Geoffrey Allan0.78%1,715,557$202.56MInsider
William Lewis0.72%1,580,678$186.63MInsider
Kenneth G. Condon0.49%1,079,230$127.42MInsider
Graham K. Crooke0.42%915,394$108.08MInsider
Kevin P. Tully0.17%377,344$44.55MInsider
Steve C. Glover0.17%372,113$43.94MInsider
Melvin Md Sharoky0.16%357,279$42.18MInsider

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INSM vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
INSM0.10%17.31%Net SellingNet Selling
UTHR0.10%14.93%Net SellingNet Selling
INCY0.10%27.95%Net SellingNet Selling
ROIV0.08%91.61%Net SellingNet Selling
ALNY0.10%20.80%Net SellingNet Buying
View Top Biotech Stocks

Insmed Stock Ownership FAQ

Who owns Insmed?

Insmed (NASDAQ: INSM) is owned by 0.10% institutional shareholders, 17.31% Insmed insiders, and 82.59% retail investors. Richard S. Kollender is the largest individual Insmed shareholder, owning 21.92M shares representing 9.99% of the company. Richard S. Kollender's Insmed shares are currently valued at $2.66B.

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