Aldeyra Therapeutics Ownership | Who Owns Aldeyra Therapeutics?


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Aldeyra Therapeutics Ownership Summary


Aldeyra Therapeutics is owned by 26.19% institutional investors, 3.13% insiders, and 70.67% retail investors. Perceptive advisors is the largest institutional shareholder, holding 15.59% of ALDX shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.97% of its assets in Aldeyra Therapeutics shares.

ALDX Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockAldeyra Therapeutics26.19%3.13%70.67%
SectorHealthcare Stocks 279.19%10.62%-189.81%
IndustryBiotech Stocks 63.96%10.74%25.30%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Perceptive advisors9.28M15.59%$53.34M
Knoll capital management5.48M9.20%$31.48M
Blackrock funding, inc. /de3.79M6.37%$18.91M
Vanguard group3.76M6.31%$18.75M
Blackrock3.62M6.10%$11.99M
Kennedy capital management1.47M2.47%$7.33M
Ardsley advisory partners lp1.15M1.93%$5.74M
Geode capital management1.12M1.88%$5.59M
State street1.03M1.74%$5.16M
Eagle asset management841.57K1.42%$2.74M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Knoll capital management5.48M20.48%$31.48M
Perceptive advisors9.28M1.88%$53.34M
Ardsley advisory partners lp1.15M0.91%$5.74M
Palo alto investors lp225.47K0.25%$1.30M
Alphacentric advisors46.91K0.23%$234.10K
Adar1 capital management211.58K0.23%$1.22M
Kennedy capital management1.47M0.16%$7.33M
Pfg investments347.75K0.11%$1.74M
Providence wealth advisors25.00K0.10%$133.13K
Woodstock194.92K0.09%$972.65K

Top Buyers

HolderShares% AssetsChange
Raymond james financial727.12K0.00%727.12K
Ardsley advisory partners lp1.15M0.91%650.00K
Caption management396.49K0.02%396.49K
Blackrock3.62M0.00%311.16K
683 capital management290.00K0.09%290.00K

Top Sellers

HolderShares% AssetsChange
Invesco29.91K--626.60K
Adar1 capital management211.58K0.23%-436.38K
Kennedy capital management1.47M0.16%-412.56K
Johnson & johnson---299.67K
Los angeles capital management---271.26K

New Positions

HolderShares% AssetsChangeValue
Raymond james financial727.12K0.00%727.12K$3.63M
Caption management396.49K0.02%396.49K$1.98M
683 capital management290.00K0.09%290.00K$1.45M
Hrt financial lp61.89K0.00%61.89K$308.00K
Alphacentric advisors46.91K0.23%46.91K$234.10K

Sold Out

HolderChange
Nelson, van denburg & campbell wealth management group-9.00
Ifp advisors-13.00
Capital performance advisors llp-17.00
Gamma investing-25.00
Innealta capital-46.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 202512-90.32%15,581,741-57.99%260.67%5-91.94%3-88.00%
Dec 31, 20241235.13%31,618,255-13.84%531.40%623.33%254.17%
Sep 30, 20241179.35%36,698,4923.87%611.74%6013.21%24-22.58%
Jun 30, 2024105-0.94%35,151,111-0.76%591.64%5110.87%31-6.06%
Mar 31, 2024106-2.75%35,421,6540.85%601.70%46-33-28.26%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv1.78M2.97%-
Vanguard US Total Market Shares ETF1.76M2.95%-
iShares Russell 2000 ETF1.37M2.29%672.00
Vanguard Institutional Extnd Mkt Idx Tr700.66K1.17%-1.10K
Vanguard Explorer Inv592.86K0.99%-87.15K
Fidelity Small Cap Index500.46K0.84%-
Kennedy Micro Cap464.86K0.78%-57.92K
iShares Russell 2000 Value ETF413.03K0.69%-
Invesco Dorsey Wright SmallCap Momt ETF410.09K0.68%-
Federated Hermes MDT SCG Institutional320.14K0.54%-

Recent Insider Transactions


DateNameRoleActivityValue
Apr 03, 2025PERCEPTIVE ADVISORS LLC-Sell$4.83M
Apr 12, 2023Miller-Rich Nancy-Buy$5.16K
May 03, 2021Miller-Rich Nancy-Buy$5.29K
Aug 12, 2024Machatha Stephen Chief Development OfficerSell$75.97K
Aug 12, 2024Greenberg Bruce See RemarksSell$51.31K

Insider Transactions Trends


DateBuySell
2025 Q2-1
2025 Q1--
2024 Q3-2
2024 Q25-
2024 Q1-7

ALDX Ownership FAQ


Who Owns Aldeyra Therapeutics?

Aldeyra Therapeutics shareholders are primarily institutional investors at 26.19%, followed by 3.13% insiders and 70.68% retail investors. The average institutional ownership in Aldeyra Therapeutics's industry, Biotech Stocks , is 63.96%, which Aldeyra Therapeutics falls below.

Who owns the most shares of Aldeyra Therapeutics?

Aldeyra Therapeutics’s largest shareholders are Perceptive advisors (9.28M shares, 15.59%), Knoll capital management (5.48M shares, 9.20%), and Blackrock funding, inc. /de (3.79M shares, 6.37%). Together, they hold 31.17% of Aldeyra Therapeutics’s total shares outstanding.

Does Blackrock own Aldeyra Therapeutics?

Yes, BlackRock owns 6.10% of Aldeyra Therapeutics, totaling 3.62M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 11.99M$. In the last quarter, BlackRock increased its holdings by 311.16K shares, a 9.40% change.

Who is Aldeyra Therapeutics’s biggest shareholder by percentage of total assets invested?

Knoll capital management is Aldeyra Therapeutics’s biggest shareholder by percentage of total assets invested, with 20.48% of its assets in 5.48M Aldeyra Therapeutics shares, valued at 31.48M$.

Who is the top mutual fund holder of Aldeyra Therapeutics shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Aldeyra Therapeutics shares, with 2.97% of its total shares outstanding invested in 1.78M Aldeyra Therapeutics shares.

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