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NASDAQ: ALDX
Aldeyra Therapeutics Inc Stock Ownership - Who owns Aldeyra Therapeutics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Aldeyra Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Michael AlfieriPrincipal Financial Officer2025-08-132,500$5.30
$13.25kBuy
Stephen MacHathaChief Development Officer2025-08-1122,073$5.15
$113.72kSell
Perceptive Advisors LLC10% Owner2025-04-033,400,000$1.42
$4.83MSell

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Net Insider Buy/Sell (L12M) Ownership

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ALDX Shareholders

What type of owners hold Aldeyra Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Perceptive Advisors LLC14.07%8,465,302$42.50MInsider
Knoll Capital Management LLC9.10%5,475,516$27.49MInstitution
Perceptive Advisors LLC6.96%4,185,632$21.01MInstitution
Blackrock Inc6.40%3,850,103$19.33MInstitution
Vanguard Group Inc6.15%3,698,682$18.57MInstitution
Domain Partners VI LP3.28%1,973,389$9.91MInsider
Jesse I. Treu3.13%1,885,854$9.47MInsider
Kingdon Capital Management LLC3.07%1,850,000$9.29MInstitution
Johnson Johnson2.91%1,750,292$8.79MInsider
D E Shaw Co Inc2.66%1,601,324$8.04MInstitution

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ALDX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALDX64.44%27.77%Net Selling
ARMP1.50%98.50%Net Selling
CABA72.93%4.52%Net BuyingNet Buying
XOMA19.48%80.52%Net SellingNet Buying
AKBA44.28%8.20%Net SellingNet Selling
View Top Biotech Stocks

Aldeyra Therapeutics Stock Ownership FAQ

Who owns Aldeyra Therapeutics?

Aldeyra Therapeutics (NASDAQ: ALDX) is owned by 64.44% institutional shareholders, 27.77% Aldeyra Therapeutics insiders, and 7.79% retail investors. Perceptive Advisors LLC is the largest individual Aldeyra Therapeutics shareholder, owning 8.47M shares representing 14.07% of the company. Perceptive Advisors LLC's Aldeyra Therapeutics shares are currently valued at $43.00M.

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