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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
Karen FirestoneDirector2026-05-213,800$13.51
$51.34kBuy
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
Justin B. KleeCo-Chief Executive Officer2026-03-0229,282$14.47
$423.77kSell
James M. FratesChief Financial Officer2026-03-027,909$14.52
$114.85kSell
Gina MazzarielloChief Legal Officer2026-02-233,419$14.14
$48.35kSell
James M. FratesChief Financial Officer2026-02-023,557$14.65
$52.10kSell
Joshua B. CohenCo-Chief Executive Officer2026-02-0215,500$14.68
$227.59kSell
Justin B. KleeCo-Chief Executive Officer2026-02-0215,500$14.69
$227.62kSell

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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 Ltd23.47%26,091,760$408.86MInsider
Fmr LLC14.96%16,630,541$260.60MInstitution
Isaac Cheng9.37%10,422,228$163.32MInsider
Blackrock Inc7.94%8,828,836$138.35MInstitution
Perceptive Advisors LLC7.45%8,284,882$129.82MInstitution
Tcg Crossover Management LLC5.62%6,243,812$97.84MInstitution
Invest 1. Bv Als5.30%5,895,280$92.38MInsider
Commodore Capital LP5.08%5,650,000$88.54MInstitution
Janus Henderson Group PLC4.48%4,986,073$78.13MInstitution
Saturn V Capital Management LP3.91%4,349,885$68.16MInstitution

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AMLX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMLX67.15%32.85%Net SellingNet Buying
IOVA19.87%80.13%Net SellingNet Selling
VRDN75.63%24.37%Net BuyingNet Buying
RAPP77.56%22.44%Net SellingNet Selling
TYRA65.84%34.16%Net SellingNet Selling
View Top Biotech Stocks

Amylyx Pharmaceuticals Stock Ownership FAQ

Who owns Amylyx Pharmaceuticals?

Amylyx Pharmaceuticals (NASDAQ: AMLX) is owned by 102.67% 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 23.47% of the company. Morningside Venture Investments Ltd's Amylyx Pharmaceuticals shares are currently valued at $424.77M.

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