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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
Richard DouglasDirector2026-03-1970,000$1.40
$98.00kBuy
Michael AlfieriPrincipal Financial Officer2026-03-185,000$1.42
$7.10kBuy
Michael AlfieriPrincipal Financial Officer2025-08-132,500$5.30
$13.25kBuy
Stephen MacHathaChief Development Officer2025-08-1122,073$5.15
$113.72kSell

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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 LLC14.03%8,465,302$13.54MInsider
Knoll Capital Management LLC9.08%5,475,516$8.76MInstitution
Blackrock Inc6.24%3,763,887$6.02MInstitution
Aqr Capital Management LLC4.69%2,829,875$4.53MInstitution
Vanguard Capital Management LLC3.92%2,363,742$3.78MInstitution
Kingdon Capital Management LLC3.57%2,152,315$3.44MInstitution
Domain Partners VI LP3.27%1,973,389$3.16MInsider
Jesse I. Treu3.13%1,885,854$3.02MInsider
Johnson Johnson2.90%1,750,292$2.80MInsider
683 Capital Management LLC2.49%1,500,000$2.40MInstitution

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ALDX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALDX61.78%27.82%Net BuyingNet Buying
ATHE0.00%0.17%
ONCY2.51%1.99%Net BuyingNet Buying
SEER37.57%62.43%Net Selling
ICCC15.13%21.30%Net BuyingNet Buying
View Top Biotech Stocks

Aldeyra Therapeutics Stock Ownership FAQ

Who owns Aldeyra Therapeutics?

Aldeyra Therapeutics (NASDAQ: ALDX) is owned by 61.78% institutional shareholders, 27.82% Aldeyra Therapeutics insiders, and 10.40% retail investors. Perceptive Advisors LLC is the largest individual Aldeyra Therapeutics shareholder, owning 8.47M shares representing 14.03% of the company. Perceptive Advisors LLC's Aldeyra Therapeutics shares are currently valued at $13.04M.

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