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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
Todd C. BradyPresident and CEO2026-06-03250,000$1.67
$418.50kBuy
Richard DouglasDirector2026-03-1970,000$1.40
$98.00kBuy
Michael AlfieriPrincipal Financial Officer2026-03-185,000$1.42
$7.10kBuy

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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$13.21MInsider
Domain Partners VI LP3.27%1,973,389$3.08MInsider
Jesse I. Treu3.13%1,885,854$2.94MInsider
Johnson Johnson2.90%1,750,292$2.73MInsider
Todd C. Brady2.85%1,721,298$2.69MInsider
Ardsley Advisory Partners LP1.62%975,000$1.52MInstitution
Joshua Reed0.46%274,825$428.73kInsider
David McMullin0.42%255,183$398.09kInsider
Woodstock Corp0.40%242,756$378.70kInstitution
Stephen MacHatha0.37%222,010$346.34kInsider

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ALDX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALDX0.06%28.23%Net BuyingNet Buying
BMEA0.03%25.13%Net Buying
GANX0.02%2.99%
CGTX0.02%28.70%Net Selling
PYPD0.02%0.02%
View Top Biotech Stocks

Aldeyra Therapeutics Stock Ownership FAQ

Who owns Aldeyra Therapeutics?

Aldeyra Therapeutics (NASDAQ: ALDX) is owned by 0.06% institutional shareholders, 28.23% Aldeyra Therapeutics insiders, and 71.71% 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 $13.21M.

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