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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
James M. FratesCFO2026-09-101,042$33.23
$34.63kSell
Camille L. BedrosianMed2026-09-107,947$32.21
$256.00kSell
Camille L. BedrosianMed2026-09-102,081$33.09
$68.86kSell
Gina MazzarielloCLO2026-09-109,525$32.46
$309.14kSell
Justin B. KleeCEO2026-09-101,439$33.16
$47.71kSell
Justin B. KleeCEO2026-09-1029,025$32.13
$932.54kSell
Gina MazzarielloCLO2026-09-1011$33.34
$366.74Sell
Joshua B. CohenCEO2026-09-1029,545$32.16
$950.05kSell
Joshua B. CohenCEO2026-09-10919$33.15
$30.46kSell
James M. FratesCFO2026-09-109,768$32.27
$315.19kSell

1 of 5

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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 Ltd23.42%26,091,760$845.63MInsider
Isaac Cheng9.35%10,422,228$337.78MInsider
Invest 1. Bv Als5.29%5,895,280$191.07MInsider
Joshua B. Cohen3.24%3,613,123$117.10MInsider
Justin B. Klee3.24%3,613,056$117.10MInsider
Dragsa 96 LLC2.06%2,300,000$74.54MInsider
Viking Global Investors LP1.66%1,850,940$59.99MInsider
George M. Milne Jr.0.73%812,881$26.35MInsider
James M. Frates0.26%284,697$9.23MInsider
Camille L. Bedrosian0.25%278,064$9.01MInsider

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AMLX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
AMLX0.10%50.23%Net SellingNet Selling
ELVN0.11%80.99%Net SellingNet Selling
TNGX0.13%49.41%Net SellingNet Buying
IDYA0.11%7.88%Net BuyingNet Buying
TARS0.11%39.11%Net SellingNet Selling
View Top Biotech Stocks

Amylyx Pharmaceuticals Stock Ownership FAQ

Who owns Amylyx Pharmaceuticals?

Amylyx Pharmaceuticals (NASDAQ: AMLX) is owned by 0.10% institutional shareholders, 50.23% Amylyx Pharmaceuticals insiders, and 49.66% retail investors. Morningside Venture Investments Ltd is the largest individual Amylyx Pharmaceuticals shareholder, owning 26.09M shares representing 23.42% of the company. Morningside Venture Investments Ltd's Amylyx Pharmaceuticals shares are currently valued at $845.63M.

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