Aldeyra Therapeutics Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqCM:ALDX Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
03 Apr 25	SellUS$4,828,000	Perceptive Advisors LLC	Company	3,400,000	US$1.42
12 Aug 24	SellUS$51,313	Bruce Greenberg	Individual	10,834	US$4.74
12 Aug 24	SellUS$75,975	Stephen Machatha	Individual	16,041	US$4.74

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of ALDX?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	1,876,186	3.14%
VC/PE Firms	10,351,367	17.3%
Institutions	23,160,006	38.8%
General Public	24,321,095	40.7%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 51.55% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
9.17%	Knoll Capital Management	5,475,516	US$14.8m	0%	11.68%
8.17%	Perceptive Advisors LLC	4,875,851	US$13.2m	-47.4%	0.43%
6.29%	The Vanguard Group, Inc.	3,756,788	US$10.1m	-0.1%	no data
6.26%	BlackRock, Inc.	3,736,038	US$10.1m	-1.43%	no data
2.46%	Kennedy Capital Management LLC	1,468,519	US$4.0m	-21.9%	0.1%
2.38%	Todd Brady	1,423,266	US$3.8m	23.2%	no data
1.93%	Ardsley Advisory Partners LP	1,150,000	US$3.1m	130%	0.72%
1.88%	Geode Capital Management, LLC	1,119,555	US$3.0m	0.44%	no data
1.73%	State Street Global Advisors, Inc.	1,033,373	US$2.8m	6.11%	no data
1.23%	Dimensional Fund Advisors LP	735,763	US$2.0m	21.8%	no data
1.22%	Raymond James Financial Inc., Asset Management Arm	727,118	US$2.0m	1,980%	no data
1.19%	Eagle Asset Management, Inc.	709,518	US$1.9m	0%	0.01%
1.09%	ADAR1 Capital Management, LLC	647,960	US$1.7m	114%	0.35%
0.92%	Federated Hermes, Inc.	550,377	US$1.5m	0.15%	no data
0.9%	Morgan Stanley, Investment Banking and Brokerage Investments	538,229	US$1.5m	13.6%	no data
0.68%	Northern Trust Global Investments	405,517	US$1.1m	4.35%	no data
0.66%	Caption Management, LLC	396,489	US$1.1m	0%	0.05%
0.61%	Wells Fargo & Company, Securities and Brokerage Investments	365,023	US$985.6k	0.23%	no data
0.53%	Deutsche Asset & Wealth Management	319,287	US$862.1k	6.22%	no data
0.49%	683 Capital Management, LLC	290,000	US$783.0k	0%	0.09%
0.38%	Palo Alto Investors LP	225,465	US$608.8k	0%	0.11%
0.37%	Woodstock Corporation	223,094	US$602.4k	14.5%	0.06%
0.35%	Goldman Sachs Group, Investment Banking and Securities Investments	210,196	US$567.5k	0%	no data
0.34%	Group One Trading LP, Asset Management Arm	204,151	US$551.2k	594%	0.02%
0.32%	Bank of America Corporation, Asset Management Arm	193,526	US$522.5k	-25.2%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/05/06 21:51
End of Day Share Price	2025/05/06 00:00
Earnings	2024/12/31
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Aldeyra Therapeutics, Inc. is covered by 18 analysts. 7 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
Keay Nakae	Ascendiant Capital Markets LLC
Esther Lannie Hong	Berenberg
Thomas Shrader	BTIG