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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
Gina MazzarielloChief Legal Officer2026-03-026,844$14.52
$99.38kSell
Camille L. BedrosianChief Medical Officer2026-03-026,461$14.58
$94.21kSell
Joshua B. CohenCo-Chief Executive Officer2026-03-0229,282$14.48
$424.12kSell
James M. FratesChief Financial Officer2026-03-027,909$14.52
$114.85kSell
Justin B. KleeCo-Chief Executive Officer2026-03-0229,282$14.47
$423.77kSell
Gina MazzarielloChief Legal Officer2026-02-233,419$14.14
$48.35kSell
Joshua B. CohenCo-Chief Executive Officer2026-02-0215,500$14.68
$227.59kSell
Gina MazzarielloChief Legal Officer2026-02-023,448$14.65
$50.52kSell
Justin B. KleeCo-Chief Executive Officer2026-02-0215,500$14.69
$227.62kSell
James M. FratesChief Financial Officer2026-02-023,557$14.65
$52.10kSell

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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 Ltd23.60%26,091,760$479.04MInsider
Fmr LLC14.94%16,518,419$303.28MInstitution
Isaac Cheng9.43%10,422,228$191.35MInsider
Blackrock Inc8.19%9,054,431$166.24MInstitution
Perceptive Advisors LLC7.50%8,284,882$152.11MInstitution
Tcg Crossover Management LLC5.65%6,243,812$114.64MInstitution
Invest 1. Bv Als5.33%5,895,280$108.24MInsider
Vanguard Group Inc5.25%5,804,912$106.58MInstitution
Commodore Capital LP5.11%5,650,000$103.73MInstitution
Saturn V Capital Management LP4.07%4,496,487$82.56MInstitution

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AMLX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMLX66.79%33.21%Net SellingNet Selling
RXRX61.48%13.61%Net SellingNet Selling
GLPG47.64%0.00%
SION64.96%35.04%Net SellingNet Selling
CAPR41.32%58.68%Net BuyingNet Buying
View Top Biotech Stocks

Amylyx Pharmaceuticals Stock Ownership FAQ

Who owns Amylyx Pharmaceuticals?

Amylyx Pharmaceuticals (NASDAQ: AMLX) is owned by 101.61% institutional shareholders, 50.53% Amylyx Pharmaceuticals insiders, and 0.00% retail investors. Morningside Venture Investments Ltd is the largest individual Amylyx Pharmaceuticals shareholder, owning 26.09M shares representing 23.60% of the company. Morningside Venture Investments Ltd's Amylyx Pharmaceuticals shares are currently valued at $458.43M.

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