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Annexon, Inc. (ANNX)

$5.97 +$0.52 (+9.43%) |Weak · 33
Bottom line: SELL — our Council read (33/100) and AI Score (33/100) broadly agree.
MCap: $714.58M| P/E Ratio: -4.2| Vol: 1.84M| Target: $16.00 (+167.8%)| 52-wk range: $1.28 – $7.18
Data from FMP · Methodology

For informational purposes only. Not financial advice. Analysis by Sedat ANAK, Founder & Editor-in-Chief | AI-powered analysis. Data sourced from SEC filings and institutional-grade financial providers. Editorially reviewed. Not financial advice.

Annexon, Inc. (ANNX) trades at $5.97 with AI Score 33/100 (Grade D). Annexon, Inc. Market cap: $714.58M, Sector: Healthcare.

Price live · AI analysis from May 10, 2026
Annexon, Inc. is a clinical-stage biopharmaceutical company focused on developing therapeutics for autoimmune, neurodegenerative, and ophthalmic disorders by targeting the classical complement pathway. Their lead product candidates are in various stages of clinical trials, addressing conditions like Guillain-Barré syndrome and geographic atrophy.

ANNX stock analysis for 2026: Analysts have set a consensus price target of $16.00 for Annexon, Inc., suggesting 167.8% upside from the current price of $5.97. The AI MoonshotScore is 33/100, indicating a bearish outlook. Key factors: analyst coverage, AI-driven quantitative scoring.

Council Score · Weighted Average of 3 Disciplines
SELL 33/100 · D

ANNX: 1/1 perspectives are bearish.

How is this calculated? →
Council Score · 8 perspectives · See tabs for details →

Annexon, Inc. (ANNX) Healthcare & Pipeline Overview

CEODouglas E. Love
Employees106
HeadquartersBrisbane, CA, US
IPO Year2020

Annexon, Inc. is a clinical-stage biopharmaceutical company specializing in complement-mediated neurodegeneration and autoimmune disorders. Their innovative approach targets the C1q initiating molecule, positioning them in the competitive biotechnology sector with a focus on unmet needs in neurodegenerative and autoimmune diseases, and ophthalmic disorders.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: May 10, 2026

What Is the Investment Thesis for ANNX?

Annexon, Inc. presents a notable research candidate due to its innovative approach to treating complement-mediated diseases. The company's lead product candidate, ANX005, is in Phase II/III trials for Guillain-Barré syndrome, offering a near-term catalyst for potential market approval. Positive data from ongoing trials for ANX007 in geographic atrophy and ANX009 in lupus nephritis could further validate the company's technology platform. The company's market capitalization of $714.58M suggests undervaluation relative to its pipeline potential. Key growth catalysts include clinical trial readouts for ANX005, ANX007, and ANX009 over the next 12-24 months. Successful trial outcomes could drive significant stock appreciation. However, the company faces risks associated with clinical trial failures, regulatory hurdles, and competition from other biotechnology companies developing therapies for similar indications. Investors should closely monitor clinical trial results and regulatory developments to assess the company's long-term prospects.

Based on FMP financials and quantitative analysis

ANNX Key Highlights

  • Annexon is a clinical-stage biopharmaceutical company focused on autoimmune, neurodegenerative, and ophthalmic disorders.
  • The company's lead product candidate, ANX005, is in Phase II/III clinical trials for Guillain-Barré syndrome, indicating potential near-term value creation.
  • ANX007 is in Phase II clinical trials for geographic atrophy, a significant unmet medical need.
  • The company's pipeline includes ANX009 in Phase Ib trial for lupus nephritis, expanding its therapeutic focus.
  • Annexon's approach targeting C1q, a key component of the complement pathway, differentiates it from competitors.

Who Are ANNX's Competitors?

ANNX is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap AI Score
ALNY Alnylam Pharmaceuticals, Inc. $313.04 +0.08% $41.79B 95
IONS Ionis Pharmaceuticals, Inc. $83.83 +2.49% $13.85B 30
CRSP CRISPR Therapeutics AG $61.78 +2.83% $5.96B 44
SNDX Syndax Pharmaceuticals, Inc. $22.11 +1.33% $1.96B 79
ANAB AnaptysBio, Inc. $63.69 +0.43% $2.75B 79
CGEN Compugen Ltd. $2.37 +3.73% $223.62M 76
XFOR X4 Pharmaceuticals, Inc. $4.09 -0.86% $386.20M 76
DAWN Day One Biopharmaceuticals, Inc. $21.53 +0.00% $2.22B 68

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance

What Are ANNX's Key Strengths?

  • Novel approach targeting C1q.
  • Diverse pipeline of product candidates.
  • Strong intellectual property position.
  • Experienced management team.

What Are ANNX's Weaknesses?

  • Clinical-stage company with no approved products.
  • Reliance on clinical trial success.
  • High cash burn rate.
  • Competition from larger pharmaceutical companies.

What Could Drive ANNX Stock Higher?

  • Data readout from Phase II clinical trial of ANX007 in geographic atrophy expected in 2027.
  • Potential initiation of Phase II trials for ANX1502 in autoimmune diseases in 2027.
  • Enrollment and data monitoring for Phase II/III clinical trial of ANX005 in Guillain-Barré syndrome.
  • Advancement of ANX009 in Phase Ib trial for lupus nephritis.

What Are the Key Risks for ANNX?

  • Financial-distress signal — its Altman Z-Score of 0.00 sits in the distress zone (elevated bankruptcy risk).
  • Weak fundamentals — a Piotroski F-Score of 1/9 flags soft profitability, leverage or efficiency.
  • Clinical trial failures for ANX005, ANX007, or ANX009.
  • Regulatory delays or rejection of their product candidates.
  • Competition from other biotechnology and pharmaceutical companies.
  • High cash burn rate and need for additional financing.
  • Patent challenges or loss of intellectual property protection.

What Are the Growth Opportunities for ANNX?

  • Expansion into New Therapeutic Areas: Annexon has the opportunity to expand its pipeline by developing therapies for additional complement-mediated diseases. By leveraging its expertise in targeting C1q, the company can explore new indications in neurology, immunology, and ophthalmology. The market for novel therapeutics in these areas is substantial, with significant unmet medical needs. This expansion could drive long-term growth and diversify the company's revenue streams. Timeline: Ongoing, with potential for new clinical programs to be initiated within the next 2-3 years.
  • Advancement of ANX007 for Geographic Atrophy: ANX007, currently in Phase II clinical trials for geographic atrophy (GA), represents a significant growth opportunity. GA is a leading cause of vision loss, and there are limited treatment options available. Positive data from the ongoing Phase II trial could lead to accelerated development and potential market approval. The market for GA therapeutics is estimated to reach $5 billion by 2030. Timeline: Data readout from Phase II trial expected in 2027, with potential for regulatory submission in 2028-2029.
  • Development of ANX1502 for Autoimmune Diseases: Annexon is developing ANX1502, an investigational oral small molecule for the treatment of certain autoimmune indications. Oral therapies offer advantages in terms of patient convenience and adherence. Successful development of ANX1502 could provide a competitive advantage in the autoimmune disease market. The autoimmune disease market is projected to grow significantly in the coming years, driven by increasing prevalence and the development of novel therapies. Timeline: Preclinical and early clinical development ongoing, with potential for Phase II trials to begin in 2027.
  • Partnerships and Collaborations: Annexon can pursue strategic partnerships and collaborations to accelerate the development and commercialization of its product candidates. Collaborations with larger pharmaceutical companies can provide access to resources, expertise, and global distribution networks. These partnerships can also help to mitigate the financial risks associated with drug development. The biotechnology industry is characterized by frequent collaborations and partnerships, reflecting the complexity and capital intensity of drug development. Timeline: Ongoing, with potential for new partnerships to be announced in the next 12-18 months.
  • Expansion of ANX005 into Additional Indications: While ANX005 is currently in Phase II/III trials for Guillain-Barré syndrome, Annexon can explore its potential in other complement-mediated neurological disorders. The company's research suggests that ANX005 may have therapeutic benefits in other conditions with similar underlying mechanisms. Expanding the indications for ANX005 could significantly increase its market potential. The market for neurological disease therapeutics is substantial and growing, driven by an aging population and increasing awareness of neurological disorders. Timeline: Preclinical and early clinical development ongoing, with potential for new clinical programs to be initiated within the next 3-4 years.

What Opportunities Does ANNX Have?

  • Positive clinical trial results.
  • Expansion into new therapeutic areas.
  • Strategic partnerships and collaborations.
  • Regulatory approvals for their product candidates.

What Threats Does ANNX Face?

  • Clinical trial failures.
  • Regulatory setbacks.
  • Competition from other therapies.
  • Patent challenges.

What Are ANNX's Competitive Advantages?

  • Proprietary technology platform targeting C1q.
  • Strong intellectual property protection for their product candidates.
  • Clinical trial data demonstrating the potential efficacy of their therapies.
  • Experienced management team with expertise in drug development.

What Does ANNX Do?

Annexon, Inc., founded in 2011 and headquartered in Brisbane, California, is a clinical-stage biopharmaceutical company dedicated to discovering and developing novel therapeutics for autoimmune, neurodegenerative, and ophthalmic disorders. The company's core scientific focus lies in modulating the classical complement pathway, particularly by targeting C1q, an initiating molecule implicated in various disease processes. Annexon's approach aims to address the underlying mechanisms of antibody-mediated autoimmune diseases and complement-mediated neurodegeneration. Annexon's pipeline features several product candidates in different stages of clinical development. ANX005, a monoclonal antibody, is currently in Phase II/III clinical trials for Guillain-Barré syndrome and Phase II trials for warm autoimmune hemolytic anemia, Huntington's disease, and amyotrophic lateral sclerosis. ANX009 is in a Phase Ib trial for lupus nephritis, while ANX007 is in Phase II clinical trials for geographic atrophy. Additionally, the company is developing ANX105, an investigational monoclonal antibody targeting neurodegenerative indications, and ANX1502, an investigational oral small molecule for the treatment of certain autoimmune indications. Annexon's strategic focus on complement-mediated diseases differentiates it within the biotechnology landscape. By targeting C1q, Annexon aims to intervene early in the disease cascade, potentially offering more effective and disease-modifying treatments. The company's diverse pipeline and clinical trial programs reflect its commitment to addressing significant unmet medical needs across multiple therapeutic areas.

What Products and Services Does ANNX Offer?

  • Develop therapeutics for autoimmune disorders.
  • Develop therapeutics for neurodegenerative disorders.
  • Develop therapeutics for ophthalmic disorders.
  • Target the C1q initiating molecule of the classical complement pathway.
  • Develop monoclonal antibodies and small molecules.
  • Conduct clinical trials to evaluate the safety and efficacy of their product candidates.
  • Focus on diseases with significant unmet medical needs.

How Does ANNX Make Money?

  • Discover and develop novel therapeutic candidates.
  • Conduct preclinical and clinical research to evaluate the safety and efficacy of their product candidates.
  • Out-license or co-develop their product candidates with larger pharmaceutical companies.
  • Potentially commercialize their products directly, if approved.

What Industry Does ANNX Operate In?

Annexon operates in the biotechnology industry, which is characterized by high growth potential and significant investment in research and development. The market for autoimmune and neurodegenerative disease therapeutics is substantial, driven by an aging population and increasing prevalence of these conditions. Competition is intense, with numerous companies developing novel therapies. Annexon's focus on complement-mediated diseases positions it within a niche segment of the market, potentially offering a competitive advantage. The global autoimmune disease therapeutics market is projected to reach $150 billion by 2028, reflecting the significant opportunity for companies like Annexon.

Who Are ANNX's Key Customers?

  • Patients with autoimmune disorders.
  • Patients with neurodegenerative disorders.
  • Patients with ophthalmic disorders.
  • Healthcare providers who treat these patients.
  • Pharmaceutical companies who may partner with Annexon.
AI Confidence: 73% Updated: May 10, 2026

How Annexon, Inc. Is Valued

Annexon, Inc. carries a market capitalization of $714.58M, placing it in the small-cap category. Relative to its peer group, ANNX's quantitative score of 33/100 is below the peer average of 65/100.

Company Profile

Annexon, Inc. operates in the Biotechnology industry within the Healthcare sector. It is headquartered in Brisbane, US. The company is led by CEO Douglas E. Love. ANNX has traded publicly since 2020.

Key Financial Metrics

Return on assets is -74.7%, showing how much profit it generates from its asset base. Its free cash flow yield is -28.0%, a gauge of the cash the business throws off relative to its market value. A current ratio of 6.35 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is -18.5%, the inverse of the P/E and a quick read on earnings relative to price.

F-Score 1/9Financial Health

Annexon, Inc.'s Piotroski F-Score is 1/9, a 9-point checklist of profitability, leverage and efficiency — flagging fundamental weakness worth scrutiny. Its Altman Z-Score of 0.00 places it in the distress zone, a signal of elevated financial risk.

FY2026 estForward Outlook

Wall Street analysts project Annexon, Inc. revenue of about $2.4M for fiscal 2026, with EPS near $-0.95. The estimate reflects 6 contributing analysts.

ANNX Financials

Fundamental Snapshot

Net Income Growth (FY)
-49.6%
EPS Growth (FY)
-32.7%
Free Cash Flow Growth (FY)
-58.0%
Return on Equity (TTM)
-101.2%
Current Ratio
6.4

Based on FMP financials and quantitative analysis · FY 2025

Bull Case vs Bear Case

Bull Case

  • Novel approach targeting C1q.
  • Diverse pipeline of product candidates.
  • Strong intellectual property position.
  • Experienced management team.

Bear Case

  • Clinical-stage company with no approved products.
  • Reliance on clinical trial success.
  • High cash burn rate.
  • Competition from larger pharmaceutical companies.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · July 2026

ANNX Latest News

ANNX Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations from Benzinga, Yahoo Finance, and Finnhub for ANNX.

Price Targets

Consensus target: $16.00

ANNX MoonshotScore

33/100

What does this score mean?

The MoonshotScore rates ANNX's growth potential on a scale of 0-100 across multiple factors including innovation, market disruption, financial health, and momentum.

Leadership: Douglas E. Love

CEO

Douglas E. Love serves as the Chief Executive Officer of Annexon, Inc. His career spans over two decades in the biotechnology and pharmaceutical industries. Prior to joining Annexon, he held leadership positions at various companies, focusing on strategic development, commercialization, and business operations. He has a strong background in building and scaling biotech companies, with a particular emphasis on developing innovative therapies for unmet medical needs. His experience includes roles at both large pharmaceutical companies and smaller, venture-backed startups.

Track Record: Under Douglas Love's leadership, Annexon has advanced its pipeline of product candidates through multiple clinical trials, including the ongoing Phase II/III trial for ANX005 in Guillain-Barré syndrome. He has overseen the expansion of the company's research and development efforts, focusing on novel approaches to treating complement-mediated diseases. He has also been instrumental in securing financing to support the company's operations and growth.

Annexon, Inc. Healthcare Stock: Key Questions Answered

What does Annexon, Inc. do?

Annexon, Inc. is a clinical-stage biopharmaceutical company focused on developing novel therapeutics for autoimmune, neurodegenerative, and ophthalmic disorders. The company's core technology targets the classical complement pathway, specifically the C1q molecule, which plays a key role in these diseases. Their pipeline includes product candidates in various stages of clinical development, addressing conditions such as Guillain-Barré syndrome, geographic atrophy, and lupus nephritis. Annexon's approach aims to address the underlying mechanisms of these diseases, potentially offering more effective and disease-modifying treatments.

What do analysts say about ANNX stock?

Analyst coverage of Annexon, Inc. is generally positive, reflecting optimism about the company's innovative approach and pipeline potential. The consensus price target suggests upside potential from current levels, but investors should conduct their own due diligence and consider their individual risk tolerance. Key valuation metrics include market capitalization, cash position, and pipeline stage. Growth considerations include clinical trial progress, regulatory milestones, and market opportunities. Analyst ratings and price targets are subject to change based on new information and market conditions.

What are the main risks for ANNX?

Annexon, Inc. faces several risks inherent to the biotechnology industry. Clinical trial failures represent a significant risk, as positive data is essential for regulatory approval and commercial success. Regulatory setbacks, such as delays or rejection of their product candidates, could also negatively impact the company's prospects. Competition from other biotechnology and pharmaceutical companies developing therapies for similar indications is another key risk. Additionally, Annexon has a high cash burn rate and will likely need to raise additional capital in the future, which could dilute existing shareholders. Patent challenges or loss of intellectual property protection could also pose a threat to the company's competitive position.

What are the key factors to evaluate for ANNX?

Annexon, Inc. (ANNX) holds an AI score of 33/100 (low). Analysts target $16.00 (+168%). Not financial advice.

How frequently does ANNX data refresh on this page?

ANNX prices update in real time during U.S. market hours. Fundamentals refresh after quarterly filings; analyst ratings and AI insights update daily; news is aggregated continuously.

What has driven ANNX's recent stock price performance?

Annexon, Inc. (ANNX) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Novel approach targeting C1q. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider ANNX overvalued or undervalued right now?

Valuing Annexon, Inc. (ANNX) requires multiple metrics. Analysts target $16.00 (+168%) — upside seen. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

What research should beginners do before buying ANNX?

Before investing in Annexon, Inc. (ANNX), research these four areas: (1) the company's revenue model and competitive position (see Company Overview), (2) financial health through revenue growth, margins, and cash flow (see MoonshotScore), (3) what Wall Street analysts recommend and their price targets (see Analyst tab), and (4) specific risk factors that could impact the stock (see Risk Factors section).

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Price as of Analysis updated AI Score refreshed daily
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • Information is based on publicly available sources and may be subject to change.
  • Clinical trial outcomes are inherently uncertain and may differ from expectations.
Data Sources

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