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NASDAQ: AMLX
Amylyx Pharmaceuticals Inc Stock Ownership - Who owns Amylyx Pharmaceuticals?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Amylyx Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Joshua B. CohenCo-Chief Executive Officer2026-02-0215,500$14.68
$227.59kSell
Gina MazzarielloChief Legal Officer2026-02-023,448$14.65
$50.52kSell
James M. FratesChief Financial Officer2026-02-023,557$14.65
$52.10kSell
Justin B. KleeCo-Chief Executive Officer2026-02-0215,500$14.69
$227.62kSell
Justin B. KleeCo-Chief Executive Officer2026-01-162,847$7.57
$21.55kBuy
Joshua B. CohenCo-Chief Executive Officer2026-01-162,818$7.57
$21.33kBuy
Joshua B. CohenCo-Chief Executive Officer2026-01-161,974$13.83
$27.30kSell
Justin B. KleeCo-Chief Executive Officer2026-01-161,995$13.89
$27.70kSell
Joshua B. CohenCo-Chief Executive Officer2026-01-15197,182$7.57
$1.49MBuy
Justin B. KleeCo-Chief Executive Officer2026-01-15136,193$13.58
$1.85MSell

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Net Insider Buy/Sell (L12M) Ownership

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AMLX Shareholders

What type of owners hold Amylyx Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Morningside Venture Investments Ltd23.76%26,091,760$338.93MInsider
Fmr LLC10.36%11,379,207$147.82MInstitution
Isaac Cheng9.49%10,422,228$135.38MInsider
Perceptive Advisors LLC8.15%8,952,365$116.29MInstitution
Blackrock Inc6.50%7,140,692$92.76MInstitution
Adage Capital Partners GP LLC6.21%6,816,828$88.55MInstitution
Tcg Crossover Management LLC5.69%6,243,812$81.11MInstitution
Invest 1. Bv Als5.37%5,895,280$76.58MInsider
Vanguard Group Inc4.80%5,273,750$68.51MInstitution
Saturn V Capital Management LP4.19%4,604,878$59.82MInstitution

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AMLX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMLX66.54%33.46%Net SellingNet Buying
CRVS55.80%43.79%Net BuyingNet Buying
RLAY77.73%22.27%Net SellingNet Selling
AGIO76.61%23.39%Net SellingNet Selling
PGEN27.27%72.73%Net SellingNet Selling
View Top Biotech Stocks

Amylyx Pharmaceuticals Stock Ownership FAQ

Who owns Amylyx Pharmaceuticals?

Amylyx Pharmaceuticals (NASDAQ: AMLX) is owned by 99.91% institutional shareholders, 50.24% Amylyx Pharmaceuticals insiders, and 0.00% retail investors. Morningside Venture Investments Ltd is the largest individual Amylyx Pharmaceuticals shareholder, owning 26.09M shares representing 23.76% of the company. Morningside Venture Investments Ltd's Amylyx Pharmaceuticals shares are currently valued at $364.76M.

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