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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$46.81MInsider
Knoll Capital Management LLC9.10%5,475,516$30.28MInstitution
Perceptive Advisors LLC8.68%5,222,311$28.88MInstitution
Blackrock Inc6.32%3,804,920$21.04MInstitution
Vanguard Group Inc5.97%3,591,869$19.86MInstitution
Domain Partners VI LP3.28%1,973,389$10.91MInsider
Ardsley Advisory Partners LP3.16%1,900,000$10.51MInstitution
Jesse I. Treu3.13%1,885,854$10.43MInsider
Johnson Johnson2.91%1,750,292$9.68MInsider
Aqr Capital Management LLC2.50%1,505,360$8.32MInstitution

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ALDX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALDX65.22%27.77%Net Selling
IVVD61.79%38.21%Net SellingNet Buying
AVIR68.02%28.60%Net BuyingNet Buying
RCKT50.64%49.36%Net SellingNet Selling
PBYI61.36%38.64%Net SellingNet Selling
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 $47.07M.

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