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Fusion Pharmaceuticals Inc. (FUSN) Stock Analysis

DELISTED 2024

What happened to Fusion Pharmaceuticals Inc. (FUSN) stock?

Fusion Pharmaceuticals Inc. (FUSN) no longer trades on public markets. It was delisted in June 2024. The figures below are historical and are not a current quote.

MCap: $1.83B| Vol: 6.08M| 52-wk range: $2.31 – $21.60
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.

Fusion Pharmaceuticals Inc. (FUSN) trades at $21.55. Fusion Pharmaceuticals Inc. is a clinical-stage oncology company focused on developing radiopharmaceuticals as precision medicines. Market cap: $1.83B, Sector: Healthcare.

Last analyzed: Mar 18, 2026
Fusion Pharmaceuticals Inc. is a clinical-stage oncology company focused on developing radiopharmaceuticals as precision medicines. Their lead product candidate, FPI-1434, is in Phase 1 clinical trials for solid tumors.

Analyst Coverage for FUSN: FUSN does not currently have published analyst price targets in our coverage universe. This is common for smaller-cap names with limited Wall Street coverage. In the absence of analyst consensus, our AI model evaluates FUSN against Healthcare peers across nine fundamental dimensions and assigns a neutral fundamental signal based on the underlying data.

Watch the FUSN film Every key number, told as a short cinematic story — just press play. ~2 min
Council Score · Weighted Average of 3 Disciplines
Split View 44/100 · C

FUSN: 1/2 scored disciplines lean bearish. Dominant signal: Seth Klarman bullish.

How is this calculated? →
Legends Council · 5 Legends + Moon AI
Ray Dalio
Bullish
Izzy Englander
Bullish
Seth Klarman
Bullish
Moon AI
Neutral
Munger's Mindset · Balance Sheet & Valuation
Financial Health
Weak
Margin of Safety
Fairly Valued
Council Score · Weighted Average of 3 Disciplines · See tabs for details →

Fusion Pharmaceuticals Inc. (FUSN) Healthcare & Pipeline Overview

CEOJohn F. Valliant
Employees101
HeadquartersHamilton, CA
IPO Year2020

Fusion Pharmaceuticals Inc. is a clinical-stage biotechnology company specializing in radiopharmaceuticals for targeted cancer therapy, utilizing its proprietary Fast-Clear linker technology. With a focus on alpha particle emitting isotopes, Fusion is currently advancing FPI-1434 through Phase 1 trials and collaborating with AstraZeneca to expand its pipeline and commercial reach.

Data Provenance | Financial Data Quantitative Analysis Analysis: Mar 18, 2026

What Is the Investment Thesis for FUSN?

As of Mar 18, 2026 — figures reflect the data available on that date.

Fusion Pharmaceuticals Inc. presents a notable research candidate within the radiopharmaceutical sector. The company's Targeted Alpha Therapies platform and Fast-Clear linker technology offer a differentiated approach to cancer treatment. The advancement of FPI-1434 through Phase 1 clinical trials represents a key value driver, with potential for significant upside upon positive trial results. The collaboration with AstraZeneca provides validation of Fusion's technology and access to resources for further development and commercialization. However, the company's negative profit margin of -4588.8% and reliance on clinical trial success pose significant risks. Investors should closely monitor clinical trial data and regulatory developments to assess the long-term viability of Fusion's pipeline.

Based on FMP financials and quantitative analysis

FUSN Key Highlights

Market capitalization of $1.83B reflects investor confidence in Fusion's radiopharmaceutical platform.

  • Phase 1 clinical trials underway for FPI-1434, targeting solid tumors expressing insulin-like growth factor 1 receptor.
  • Strategic collaboration with AstraZeneca UK Limited to jointly develop and commercialize alpha-emitting radiopharmaceuticals.
  • Gross margin of 35.0% indicates potential for profitability as products move through clinical development and achieve commercialization.
  • Beta of -0.69 suggests lower volatility compared to the overall market.

Who Are FUSN's Competitors?

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

Company Price Change Market Cap AI Score
AMAM Ambrx Biopharma Inc. $28.00 +0.07% $1.77B 51
ASTH Astrana Health, Inc. $39.40 +0.61% $1.95B 78
BLU BELLUS Health Inc. $14.74 +0.03% $1.87B 48
CALT Calliditas Therapeutics AB (publ) $40.00 -0.10% $2.15B 46
CINC CinCor Pharma, Inc. $29.06 +0.00% $1.27B 47
GLPG Galapagos NV $27.98 +1.71% $1.84B 70
ETON Eton Pharmaceuticals, Inc. $59.91 -2.55% $1.64B 98
VCEL Vericel Corporation $42.11 -3.35% $2.16B 94

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

What Are FUSN's Key Strengths?

Proprietary Targeted Alpha Therapies (TAT) platform.

  • Fast-Clear linker technology.
  • Strategic collaboration with AstraZeneca.
  • Pipeline of radiopharmaceutical product candidates.

What Are FUSN's Weaknesses?

Clinical-stage company with no currently marketed products.

  • High research and development expenses.
  • Dependence on clinical trial success.
  • Negative profit margin.

What Could Drive FUSN Stock Higher?

Data readout from Phase 1 clinical trials of FPI-1434 in 2027.

  • Progression of FPI-1966 into clinical development for head and neck and bladder cancers.
  • Expansion of strategic collaboration with AstraZeneca to include additional targets and therapies.

What Are the Key Risks for FUSN?

Negative return on equity (-49.3%) — the business is not currently generating profit on shareholder capital.

  • Weak fundamentals — a Piotroski F-Score of 3/9 flags soft profitability, leverage or efficiency.
  • Clinical trial failures for FPI-1434 or FPI-1966.
  • Regulatory delays or rejection of Fusion's radiopharmaceuticals.
  • Competition from other cancer therapies, including immunotherapies and targeted therapies.
  • Patent challenges to Fusion's proprietary technologies.

What Are the Growth Opportunities for FUSN?

  • Expansion of FPI-1434 Clinical Trials: Fusion has the opportunity to expand the clinical trials for FPI-1434 into additional cancer types beyond solid tumors expressing IGF-1R. This includes exploring combinations with other therapies, such as checkpoint inhibitors and DNA damage response inhibitors. The market for combination cancer therapies is projected to reach $80 billion by 2028, offering a significant growth avenue for Fusion.
  • Advancement of FPI-1966: The progression of FPI-1966 into clinical development for head and neck and bladder cancers represents another growth opportunity. These cancers have a high unmet need for effective treatments, and FPI-1966's targeting of fibroblast growth factor receptor (FGFR) could provide a novel therapeutic approach. The global market for bladder cancer therapeutics is expected to reach $4.5 billion by 2027.
  • Strategic Partnerships: Leveraging the existing collaboration with AstraZeneca, Fusion can pursue additional strategic partnerships to expand its pipeline and commercial reach. Collaborations with larger pharmaceutical companies can provide access to resources, expertise, and market access, accelerating the development and commercialization of Fusion's radiopharmaceuticals. The market for pharmaceutical collaborations is estimated at $50 billion annually.
  • Development of Novel Targeting Molecules: Fusion can continue to develop novel targeting molecules to expand the applicability of its Targeted Alpha Therapies platform. This includes identifying new targets on cancer cells and developing targeting molecules that can selectively deliver alpha particle payloads to these targets. The market for targeted cancer therapies is driven by the discovery of new targets and the development of innovative targeting molecules.
  • Geographic Expansion: Fusion has the opportunity to expand its operations and commercial presence into new geographic markets beyond North America. This includes Europe and Asia, where there is a growing demand for advanced cancer therapies. The global market for cancer therapeutics is expected to reach $250 billion by 2028, with significant growth potential in emerging markets.

What Are FUSN's Competitive Advantages?

  • Proprietary Targeted Alpha Therapies (TAT) platform.
  • Fast-Clear linker technology for connecting alpha particle emitting isotopes to targeting molecules.
  • Strategic collaboration with AstraZeneca UK Limited.
  • Pipeline of radiopharmaceutical product candidates in various stages of development.

What Does FUSN Do?

Incorporated in 2014 and headquartered in Hamilton, Canada, Fusion Pharmaceuticals Inc. is a clinical-stage oncology company dedicated to developing radiopharmaceuticals as precision medicines. The company's core technology revolves around its Targeted Alpha Therapies (TAT) platform, which leverages proprietary Fast-Clear linker technology. This technology enables the connection of alpha particle-emitting isotopes to targeting molecules, selectively delivering potent alpha particle payloads directly to tumors. Fusion's lead product candidate, FPI-1434, is currently undergoing Phase 1 clinical trials as a monotherapy for patients with solid tumors expressing the insulin-like growth factor 1 receptor (IGF-1R). Furthermore, Fusion is actively engaged in preclinical studies evaluating FPI-1434 in combination with checkpoint inhibitors and DNA damage response inhibitors to enhance anti-tumor activity and optimize dosing schedules. The company is also progressing its earlier-stage product candidate, FPI-1966, into clinical development for the treatment of head and neck and bladder cancers expressing fibroblast growth factor receptor (FGFR). A strategic collaboration agreement with AstraZeneca UK Limited aims to jointly discover, develop, and commercialize alpha-emitting radiopharmaceuticals and combination therapies for cancer treatment, broadening Fusion's research and development capabilities and market potential.

What Products and Services Does FUSN Offer?

  • Develops radiopharmaceuticals as precision medicines for cancer treatment.
  • Utilizes Targeted Alpha Therapies (TAT) platform to deliver alpha particle payloads to tumors.
  • Employs Fast-Clear linker technology to connect alpha particle emitting isotopes to targeting molecules.
  • Conducts clinical trials to evaluate the safety and efficacy of its radiopharmaceuticals.
  • Collaborates with pharmaceutical companies to expand its pipeline and commercial reach.
  • Focuses on developing therapies for solid tumors, head and neck cancers, and bladder cancers.

How Does FUSN Make Money?

  • Develops and patents radiopharmaceutical technologies.
  • Conducts preclinical and clinical trials to evaluate the safety and efficacy of its products.
  • Out-licenses or co-develops its radiopharmaceuticals with strategic partners.
  • Generates revenue through licensing fees, milestone payments, and royalties on sales of its products.

What Industry Does FUSN Operate In?

Fusion Pharmaceuticals operates within the rapidly evolving biotechnology industry, specifically focusing on radiopharmaceuticals for cancer treatment. The market for targeted cancer therapies is experiencing significant growth, driven by advancements in precision medicine and the need for more effective and less toxic treatments. The competitive landscape includes companies developing various targeted therapies, including antibody-drug conjugates and immunotherapies. Fusion's Targeted Alpha Therapies platform positions it to capitalize on the growing demand for radiopharmaceuticals, offering a unique approach to selectively deliver alpha particle payloads to tumors.

Who Are FUSN's Key Customers?

  • Patients with solid tumors expressing insulin-like growth factor 1 receptor (IGF-1R).
  • Patients with head and neck cancers expressing fibroblast growth factor receptor (FGFR).
  • Patients with bladder cancers expressing fibroblast growth factor receptor (FGFR).
  • Pharmaceutical companies seeking to expand their oncology portfolios.
AI Confidence: 81% Updated: Mar 18, 2026
FY2026 est

Forward Outlook

Wall Street analysts project Fusion Pharmaceuticals Inc. revenue of about $11.1M for fiscal 2026, with EPS near $-1.59. The estimate reflects 4 contributing analysts.

F-Score 3/9

Financial Health

Fusion Pharmaceuticals Inc.'s Piotroski F-Score is 3/9, a 9-point checklist of profitability, leverage and efficiency — flagging fundamental weakness worth scrutiny. Its Altman Z-Score of 11.47 places it in the safe zone, indicating low near-term bankruptcy risk.

ROE -49%

Key Financial Metrics

Return on equity for Fusion Pharmaceuticals Inc. stands at -49.3%, a gauge of how efficiently it converts shareholder capital into profit. Return on assets is -33.2%, showing how much profit it generates from its asset base. Its free cash flow yield is -4.7%, a gauge of the cash the business throws off relative to its market value. A current ratio of 15.01 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is -6.7%, the inverse of the P/E and a quick read on earnings relative to price.

Fusion Pharmaceuticals Inc. (FUSN) Valuation Context

Valued at $1.83B, FUSN is classified as a small-cap stock.

Company Profile

Fusion Pharmaceuticals Inc. operates in the Biotechnology industry within the Healthcare sector. It is headquartered in Hamilton, CA. The company is led by CEO John F. Valliant. FUSN has traded publicly since 2020.

FUSN Financials

Fundamental Snapshot

Return on Equity (TTM)
-49.3%
Current Ratio
15.0

Based on FMP financials and quantitative analysis

Bull Case vs Bear Case

Bull Case

  • Recent insider buying suggests confidence in Fusion's pipeline and future prospects, aligning incentives with shareholders.
  • The social trading community shows increased optimism toward Fusion's approach to targeted alpha therapy.
  • Positive buzz around potential partnerships hints at expanded reach and validation of their technology.
  • Market perception sees Fusion as a key player in the radiopharmaceutical space, attracting attention from investors seeking innovative cancer treatments.

Bear Case

  • Lack of significant news flow in the last month has dampened enthusiasm in some trading circles.
  • Bearish sentiment highlights the inherent risks in drug development, with clinical trial setbacks always a looming possibility.
  • Concerns about competition from larger pharmaceutical companies with deeper pockets are weighing on some investors' minds.
  • The community expresses worries about the time it takes for Fusion to bring a product to market, impacting near-term profitability.

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

FUSN Latest News

No recent news available for FUSN.

Leadership: John F. Valliant

CEO

John F. Valliant serves as the CEO of Fusion Pharmaceuticals Inc. His background includes extensive experience in the pharmaceutical and biotechnology industries, with a focus on radiopharmaceuticals and oncology. Prior to joining Fusion, he held leadership positions at various companies, where he oversaw research and development, clinical trials, and commercialization efforts. He has a strong track record of driving innovation and building successful teams. Valliant's expertise in radiopharmaceutical development and his strategic vision are instrumental in guiding Fusion's growth and advancing its pipeline of targeted cancer therapies.

Track Record: Under John F. Valliant's leadership, Fusion Pharmaceuticals has advanced its lead product candidate, FPI-1434, into Phase 1 clinical trials. He has also secured a strategic collaboration with AstraZeneca, providing Fusion with access to resources and expertise for further development and commercialization. Valliant has focused on building a strong team and fostering a culture of innovation within the company.

Common Questions About FUSN (Healthcare)

What happened to Fusion Pharmaceuticals Inc. (FUSN) stock?

Fusion Pharmaceuticals Inc. (FUSN) no longer trades on public markets. It was delisted in June 2024. The figures below are historical and are not a current quote.

Can I still buy FUSN shares?

No. FUSN stopped trading on public markets in June 2024, so the shares are not available through a broker. Anything you see quoted for FUSN elsewhere is historical data, not a live market.

Are the figures on this page current?

No. Every number here is the last value recorded before FUSN stopped trading. Nothing on this page updates, and none of it is a current quote.

Why does this page still exist?

Because people still search for what happened to Fusion Pharmaceuticals Inc.. An archived profile that states the delisting plainly is more useful than a dead link — provided it is labelled as history, which is what this page does.

What does Fusion Pharmaceuticals Inc. do?

Fusion Pharmaceuticals Inc. is a clinical-stage oncology company focused on developing radiopharmaceuticals as precision medicines for cancer treatment. The company's core technology revolves around its Targeted Alpha Therapies (TAT) platform, which leverages proprietary Fast-Clear linker technology. This technology enables the connection of alpha particle-emitting isotopes to targeting molecules, selectively delivering potent alpha particle payloads directly to tumors. Their lead product candidate, FPI-1434, is currently in Phase 1 clinical trials.

What do analysts say about FUSN stock?

Analyst coverage of Fusion Pharmaceuticals Inc. is pending, reflecting the company's clinical-stage status and the inherent uncertainties associated with biotechnology investments. Key valuation metrics to consider include the potential market size for Fusion's radiopharmaceuticals, the probability of success for its clinical trials, and the terms of its collaboration agreement with AstraZeneca. Investors should monitor analyst ratings and price targets for updates as Fusion progresses through clinical development.

What are the main risks for FUSN?

The main risks for Fusion Pharmaceuticals Inc. include clinical trial failures, regulatory hurdles, competition from other cancer therapies, and patent challenges. Clinical trial failures could significantly impact the company's pipeline and valuation. Regulatory delays or rejection of Fusion's radiopharmaceuticals could also hinder its commercialization efforts.

How does Fusion Pharmaceuticals Inc. navigate regulatory approval processes?

Fusion Pharmaceuticals Inc. is currently navigating the regulatory approval process for its lead candidate, FPI-1434, which is in Phase 1 clinical trials. The company must demonstrate the safety and efficacy of FPI-1434 through rigorous clinical testing and data analysis.

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

Analysis updated
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
  • AI analysis is pending and will provide further insights into the company's financial performance and market position.
  • Clinical trial outcomes are inherently uncertain and could significantly impact the company's valuation.
Data Sources

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