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ALDX Overview

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ET
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ET
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Intellectia

Loading chart...

High
1.720
Open
1.690
VWAP
1.67
Vol
1.82M
Mkt Cap
99.90M
Low
1.630
Amount
3.04M
EV/EBITDA(TTM)
--
Total Shares
60.18M
EV
45.11M
EV/OCF(TTM)
--
P/S(TTM)
--
Aldeyra Therapeutics, Inc. is a biotechnology company focused on discovering therapies designed to treat immune-mediated and metabolic diseases. The Company's approach is to develop pharmaceuticals that modulate protein systems, instead of directly inhibiting or activating single protein targets, with the goal of optimizing multiple pathways at once while minimizing toxicity. Its product candidates include reactive aldehyde species (RASP) modulators ADX-629, ADX 248, ADX-743, ADX-631, ADX-246, and chemically related molecules for the potential treatment of systemic and retinal immune-mediated and metabolic diseases. Its late-stage product candidates are reproxalap, a RASP modulator for the potential treatment of dry eye disease and allergic conjunctivitis, and ADX-2191, a novel formulation of intravitreal methotrexate for the potential treatment of retinitis pigmentosa. ADX 629 is in Phase II clinical trials for moderate alcohol-associated hepatitis and Sjogren-Larsson Syndrome.
Show More

Events Timeline

(ET)
2026-03-17
09:10:00
Aldeyra Receives Complete Response Letter from FDA, reproxalap NDA Rejected
select
2025-12-16 (ET)
2025-12-16
16:20:00
Major US Averages Mixed as Unemployment Rate Rises to 4.6%
select
2025-12-16
12:00:00
Major Averages Broadly Lower as Traders Eye Jobs Report
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2025-12-15 (ET)
2025-12-15
20:10:00
Aldeyra Therapeutics FDA Extends Reproxalap Target Action Date to March 16, 2026
select
2025-11-13 (ET)
2025-11-13
07:40:11
Aldeyra Enhances RASP Platform
select
2025-10-28 (ET)
2025-10-28
08:02:24
Aldeyra's ADX-629 Shows Notable Enhancement in Liver Function Results
select

News

Globenewswire
7.0
01:47 AMGlobenewswire
Class Action Lawsuit Filed Against Aldeyra Therapeutics
  • Class Action Initiation: Rosen Law Firm has filed a class action lawsuit on behalf of investors who purchased Aldeyra Therapeutics (NASDAQ: ALDX) securities between November 3, 2023, and March 16, 2026, indicating significant legal risks facing the company.
  • Basis for Lawsuit: The lawsuit alleges that Aldeyra made false and misleading statements regarding inconsistent results from clinical trials, which could severely undermine investor confidence and the company's market reputation.
  • Investor Rights Protection: Investors joining the class action can do so without any upfront costs, reflecting Rosen Law Firm's contingency fee arrangement that aims to alleviate financial burdens on investors and encourage broader participation from affected parties.
  • Law Firm Credentials: Rosen Law Firm is renowned for its successful track record in securities class actions, having recovered over $438 million for investors in 2019 alone, showcasing its expertise and influence in handling similar cases.
Globenewswire
7.0
04-05Globenewswire
Aldeyra Therapeutics Faces Class Action Lawsuit
  • Class Action Initiated: Bronstein, Gewirtz & Grossman, LLC, a nationally recognized investor-rights law firm, has filed a class action lawsuit against Aldeyra Therapeutics (NASDAQ: ALDX) and certain officers, seeking damages for investors who purchased securities between November 3, 2023, and March 16, 2026, indicating strong investor response to potential fraud allegations.
  • Allegations of False Statements: The complaint alleges that defendants made false and/or misleading statements throughout the class period and failed to disclose inconsistencies in the clinical trial results of reproxalap, rendering any purported positive findings unreliable, which severely impacts the company's reputation and future prospects.
  • Investor Action Deadline: Affected investors have until May 29, 2026, to request to be appointed as lead plaintiff, highlighting the urgency for the company to address investor losses and reflecting the importance of legal proceedings in protecting investor rights.
  • Law Firm Credentials: Bronstein, Gewirtz & Grossman, LLC is a reputable firm in securities fraud class actions, having recovered hundreds of millions for investors nationwide, emphasizing its expertise in restoring investor capital and ensuring corporate accountability to uphold market integrity.
Globenewswire
7.0
04-03Globenewswire
Aldeyra Therapeutics Faces Securities Fraud Class Action Lawsuit
  • Lawsuit Announcement: Wolf Haldenstein Adler Freeman & Herz LLP has filed a securities fraud class action against Aldeyra Therapeutics on behalf of investors who purchased securities between November 3, 2023, and March 16, 2026, indicating significant investor dissatisfaction with the company's financial transparency.
  • Drug Application Failure: On March 17, 2026, Aldeyra disclosed in an 8-K report to the SEC that it received a Complete Response Letter stating its dry eye drug failed to demonstrate efficacy in controlled studies, leading to a sharp decline in investor confidence.
  • Stock Price Plunge: Following the negative news, Aldeyra's stock price fell by $2.99, approximately 70.7%, closing at $1.24 per share, reflecting a pessimistic outlook from the market regarding the company's future prospects.
  • Law Firm Background: Founded in 1888, Wolf Haldenstein Adler Freeman & Herz LLP boasts over 125 years of experience in securities litigation, dedicated to pursuing justice for investors harmed by misrepresentations, underscoring its authority and expertise in the legal field.
Globenewswire
7.0
04-03Globenewswire
Aldeyra Therapeutics Faces Class Action for Securities Fraud
  • Class Action Reminder: The Schall Law Firm alerts investors of a class action lawsuit against Aldeyra Therapeutics for violations of securities laws, concerning trades from November 3, 2023, to March 16, 2026, with a deadline for participation set for May 29, 2026.
  • False Statements Allegation: The complaint alleges that Aldeyra made false and misleading statements regarding the clinical trial results of its reproxalap drug candidate, which were inconsistent, leading to unreliable positive claims and resulting in investor losses once the truth emerged.
  • Legal Consultation Opportunity: Affected investors are encouraged to consult with the Schall Law Firm for free regarding their rights, as the firm specializes in securities class actions and aims to assist investors in recovering losses, highlighting its expertise in securities law.
  • Lawsuit Not Yet Certified: The class action has not yet been certified by the court, meaning investors are not represented by an attorney during this period, and those who choose not to act may become absent class members, potentially jeopardizing their claims.
PRnewswire
7.0
04-03PRnewswire
Faruqi & Faruqi Encourages Aldeyra Investors to Reach Out
  • Legal Investigation Initiated: Faruq & Faruqi, LLP is investigating potential claims against Aldeyra Therapeutics, Inc., particularly for investors who purchased or acquired securities between November 3, 2023, and March 16, 2026, indicating concerns over the company's future legal liabilities.
  • Investor Rights Reminder: The firm reminds investors that May 29, 2026, is the deadline to seek the role of lead plaintiff in a federal securities class action, emphasizing the importance and urgency of investor participation in legal proceedings.
  • Direct Contact Channels: Securities Litigation Partner Josh Wilson encourages affected investors to reach out directly at 877-247-4292 or 212-983-9330 (Ext. 1310), providing a convenient avenue for legal support.
  • Potential Loss Warning: Due to the ongoing investigation, investors may face potential financial losses, indicating possible undisclosed risks within the company, prompting investors to carefully reassess their investment decisions.
Globenewswire
7.0
04-03Globenewswire
Class Action Filed Against Aldeyra Therapeutics
  • Class Action Initiation: Rosen Law Firm has filed a class action lawsuit on behalf of investors who purchased Aldeyra Therapeutics (NASDAQ: ALDX) securities between November 3, 2023, and March 16, 2026, indicating misleading statements that may have caused investor losses during this period.
  • Compensation Structure: Investors participating in the lawsuit may receive compensation without any out-of-pocket costs through a contingency fee arrangement, which reduces financial barriers for affected investors and encourages broader participation.
  • Details of Allegations: The lawsuit alleges that Aldeyra made inconsistent statements regarding clinical trial results, rendering its business outlook claims materially false and misleading, which could negatively impact the company's reputation and future financing capabilities.
  • Law Firm Credentials: Rosen Law Firm is recognized for its successful track record in securities class actions, having recovered over $438 million for investors in 2019 alone, showcasing its expertise and influence in handling similar cases.
Wall Street analysts forecast ALDX stock price to rise
2 Analyst Rating
Wall Street analysts forecast ALDX stock price to rise
2 Buy
0 Hold
0 Sell
Moderate Buy
Current: 0.000
sliders
Low
9.00
Averages
9.50
High
10.00
Current: 0.000
sliders
Low
9.00
Averages
9.50
High
10.00
H.C. Wainwright
Matthew Caufield
Buy -> Neutral
downgrade
$10 -> $2
AI Analysis
2026-03-18
Reason
H.C. Wainwright
Matthew Caufield
Price Target
$10 -> $2
AI Analysis
2026-03-18
downgrade
Buy -> Neutral
Reason
H.C. Wainwright analyst Matthew Caufield downgraded Aldeyra to Neutral from Buy with a price target of $2, down from $10, after the company received a complete response letter from the FDA related to reproxalap for the topical treatment of the signs and symptoms of dry eye disease. The firm reduced its probability of success for reproxalap from 75% to 40% and downgraded Aldeyra.
BTIG
Thomas Shrader
Strong Buy
Maintains
$11 → $9
2025-04-07
Reason
BTIG
Thomas Shrader
Price Target
$11 → $9
2025-04-07
Maintains
Strong Buy
Reason

Valuation Metrics

The current forward P/E ratio for Aldeyra Therapeutics Inc (ALDX.O) is 0.00, compared to its 5-year average forward P/E of -15.09. For a more detailed relative valuation and DCF analysis to assess Aldeyra Therapeutics Inc's fair value, Click here.

Forward PE

The forward P/E ratio is a valuation metric that divides a company's current stock price by its estimated future earnings per share over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average PE
-15.09
Current PE
0.00
Overvalued PE
15.85
Undervalued PE
-46.03

Forward EV/EBITDA

The forward EV/EBITDA ratio is a valuation metric that divides a company's enterprise value (EV) by its estimated future earnings before interest, taxes, depreciation, and amortization (EBITDA) over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average EV/EBITDA
-3.69
Current EV/EBITDA
0.00
Overvalued EV/EBITDA
-0.54
Undervalued EV/EBITDA
-6.84

Forward PS

The forward P/S ratio is a valuation metric that divides a company's current stock price by its estimated future sales (or revenue) per share over the next 12 months.
StronglyUndervaluedUndervaluedFairOvervaluedStronglyOvervalueddotted line Image
N/A
5Y Average PS
21.66
Current PS
3.43
Overvalued PS
60.83
Undervalued PS
-17.50

Financials

AI Analysis
Annual
Quarterly

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Whales Holding ALDX

P
Perceptive Advisors LLC
Holding
ALDX
+10.17%
3M Return

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Frequently Asked Questions

What is Aldeyra Therapeutics Inc (ALDX) stock price today?

The current price of ALDX is 1.66 USD — it has decreased -1.19

What is Aldeyra Therapeutics Inc (ALDX)'s business?

Aldeyra Therapeutics, Inc. is a biotechnology company focused on discovering therapies designed to treat immune-mediated and metabolic diseases. The Company's approach is to develop pharmaceuticals that modulate protein systems, instead of directly inhibiting or activating single protein targets, with the goal of optimizing multiple pathways at once while minimizing toxicity. Its product candidates include reactive aldehyde species (RASP) modulators ADX-629, ADX 248, ADX-743, ADX-631, ADX-246, and chemically related molecules for the potential treatment of systemic and retinal immune-mediated and metabolic diseases. Its late-stage product candidates are reproxalap, a RASP modulator for the potential treatment of dry eye disease and allergic conjunctivitis, and ADX-2191, a novel formulation of intravitreal methotrexate for the potential treatment of retinitis pigmentosa. ADX 629 is in Phase II clinical trials for moderate alcohol-associated hepatitis and Sjogren-Larsson Syndrome.

What is the price predicton of ALDX Stock?

Wall Street analysts forecast ALDX stock price to rise over the next 12 months. According to Wall Street analysts, the average 1-year price target for ALDX is9.50 USD with a low forecast of 9.00 USD and a high forecast of 10.00 USD. However, analyst price targets are subjective and often lag stock prices, so investors should focus on the objective reasons behind analyst rating changes, which better reflect the company's fundamentals.

What is Aldeyra Therapeutics Inc (ALDX)'s revenue for the last quarter?

Aldeyra Therapeutics Inc revenue for the last quarter amounts to -6.67M USD, decreased -59.78

What is Aldeyra Therapeutics Inc (ALDX)'s earnings per share (EPS) for the last quarter?

Aldeyra Therapeutics Inc. EPS for the last quarter amounts to -5299345.00 USD, decreased -55.97

How many employees does Aldeyra Therapeutics Inc (ALDX). have?

Aldeyra Therapeutics Inc (ALDX) has 8 emplpoyees as of April 06 2026.

What is Aldeyra Therapeutics Inc (ALDX) market cap?

Today ALDX has the market capitalization of 99.90M USD.