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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 LLC14.13%8,465,302$42.92MInsider
Knoll Capital Management LLC9.14%5,475,516$27.76MInstitution
Perceptive Advisors LLC6.76%4,051,631$20.54MInstitution
Blackrock Inc6.43%3,852,101$19.53MInstitution
Vanguard Group Inc5.85%3,501,593$17.75MInstitution
Ardsley Advisory Partners LP3.42%2,050,000$10.39MInstitution
Domain Partners VI LP3.29%1,973,389$10.01MInsider
Jesse I. Treu3.15%1,885,854$9.56MInsider
Johnson Johnson2.92%1,750,292$8.87MInsider
Aqr Capital Management LLC2.46%1,473,812$7.47MInstitution

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ALDX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALDX57.21%27.89%Net SellingNet Selling
GNLX19.59%7.60%Net Selling
MREO12.39%4.19%
KYTX50.86%49.14%
CAPR26.08%73.92%Net Buying
View Top Biotech Stocks

Aldeyra Therapeutics Stock Ownership FAQ

Who owns Aldeyra Therapeutics?

Aldeyra Therapeutics (NASDAQ: ALDX) is owned by 57.21% institutional shareholders, 27.89% Aldeyra Therapeutics insiders, and 14.90% retail investors. Perceptive Advisors LLC is the largest individual Aldeyra Therapeutics shareholder, owning 8.47M shares representing 14.13% of the company. Perceptive Advisors LLC's Aldeyra Therapeutics shares are currently valued at $42.92M.

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