WallStreetZenWallStreetZen

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

1 of 1

ALDX insiders have bought more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when ALDX insiders and whales buy or sell their stock.

ALDX Shareholders

What type of owners hold Aldeyra Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Perceptive Advisors LLC14.03%8,465,302$13.12MInsider
Domain Partners VI LP3.27%1,973,389$3.06MInsider
Jesse I. Treu3.13%1,885,854$2.92MInsider
Johnson Johnson2.90%1,750,292$2.71MInsider
Todd C. Brady2.85%1,721,298$2.67MInsider
Joshua Reed0.46%274,825$425.98kInsider
David McMullin0.42%255,183$395.53kInsider
Stephen MacHatha0.37%222,010$344.12kInsider
Richard Douglas0.32%195,000$302.25kInsider
Bruce Greenberg0.21%126,382$195.89kInsider

1 of 3

ALDX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALDX0.06%28.23%Net BuyingNet Buying
CGTX0.02%28.70%Net Selling
KLRS0.01%99.99%Net BuyingNet Buying
PYPD0.02%0.02%
FBIO0.02%49.61%Net Buying
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 $13.12M.

If you're new to stock investing, here's how to buy Aldeyra Therapeutics stock.
©2026 WallStreetZen
Company
AboutNewsBlogStock Investing FAQPlansPrivacy PolicyTerms of ServiceCancellation & RefundsPerformanceHelp GuidesContactTwitterYouTubeNewsletter
Stock Tools
Top Performing AnalystsStock ScreenerStock ForecastTrending StocksStrong Buy StocksHighest Earnings StocksBest Dividend Paying StocksStatisticsStock Market SectorsStock Market IndustriesHow to Buy Stocks Online
Stock Ideas
Buy The DipBiggest Stock Gainers TodayBiggest Stock Losers Today52 Week High Stocks52 Week Low StocksMost Active Stocks TodayMost Undervalued StocksBest Penny Stocks to Buy NowBest Stocks Under $5Best Stocks Under $10
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.