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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$42.41MInsider
Knoll Capital Management LLC9.10%5,475,516$27.43MInstitution
Perceptive Advisors LLC8.68%5,222,311$26.16MInstitution
Blackrock Inc6.32%3,804,920$19.06MInstitution
Vanguard Group Inc5.97%3,591,869$18.00MInstitution
Domain Partners VI LP3.28%1,973,389$9.89MInsider
Ardsley Advisory Partners LP3.16%1,900,000$9.52MInstitution
Jesse I. Treu3.13%1,885,854$9.45MInsider
Johnson Johnson2.91%1,750,292$8.77MInsider
Aqr Capital Management LLC2.50%1,505,360$7.54MInstitution

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ALDX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALDX65.22%27.77%Net Selling
CAMP52.04%47.96%Net Buying
AARD43.48%46.96%Net BuyingNet Buying
FHTX72.32%14.11%
SLN13.91%0.09%
View Top Biotech Stocks

Aldeyra Therapeutics Stock Ownership FAQ

Who owns Aldeyra Therapeutics?

Aldeyra Therapeutics (NASDAQ: ALDX) is owned by 65.22% institutional shareholders, 27.77% Aldeyra Therapeutics insiders, and 7.01% 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 $41.99M.

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