Mersana Therapeutics, Inc. (MRSN) Stock Analysis
DELISTED 2026
What happened to Mersana Therapeutics, Inc. (MRSN) stock?
Mersana Therapeutics, Inc. (MRSN) no longer trades on public markets. It was delisted in January 2026. The figures below are historical and are not a current quote.
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.
Mersana Therapeutics, Inc. (MRSN) trades at $29.08. Mersana Therapeutics, Inc. is a clinical-stage biopharmaceutical company focused on developing innovative antibody drug conjugates for cancer treatment. Market cap: $145M, Sector: Healthcare.
Last analyzed: May 10, 2026Analyst Coverage for MRSN: MRSN 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 MRSN against Healthcare peers across nine fundamental dimensions and assigns a neutral fundamental signal based on the underlying data.
MRSN: 1/2 scored disciplines lean bearish. Dominant signal: Ray Dalio bullish.
How is this calculated? →Mersana Therapeutics, Inc. (MRSN) Healthcare & Pipeline Overview
Mersana Therapeutics, Inc. specializes in developing antibody drug conjugates (ADCs) for cancer patients, leveraging its proprietary Fleximer technology to create targeted therapies that address significant unmet needs in oncology.
What Is the Investment Thesis for MRSN?
Mersana Therapeutics, Inc. presents a compelling investment thesis driven by its innovative pipeline of antibody drug conjugates, particularly XMT-1592, which is currently in phase I clinical trials. The company's focus on targeting specific tumor markers such as NaPi2b positions it favorably in a market that is increasingly leaning towards precision medicine. With a market capitalization of $145M and a gross margin of 99.1%, Mersana demonstrates strong potential for profitability as it advances its clinical candidates. Strategic partnerships with established companies like Merck KGaA enhance its research capabilities and market access, while the ongoing clinical trials are expected to provide critical data points that could lead to significant value creation. However, investors should remain cognizant of the inherent risks associated with clinical-stage biopharmaceutical companies, including regulatory hurdles and the potential for trial failures.
Based on FMP financials and quantitative analysis
MRSN Key Highlights
Market capitalization of $145M reflects the company's position in the biopharmaceutical sector.
- Gross margin of 99.1% indicates strong potential for profitability as products advance to market.
- Profit margin of -211.2% highlights the challenges faced by clinical-stage companies in achieving profitability.
- Beta of 0.43 suggests lower volatility compared to the broader market, indicating relative stability.
- No dividend yield, consistent with the company's focus on reinvesting in research and development.
Who Are MRSN's Competitors?
MRSN is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.
| Company | Price | Change | Market Cap | AI Score |
|---|---|---|---|---|
| RHHBY Roche Holding AG | $58.24 | +4.90% | $371B | 61 |
| BMY Bristol-Myers Squibb Company | $65.47 | -3.17% | $134B | 90 |
| GILD Gilead Sciences, Inc. | $143.44 | -2.82% | $178B | 62 |
| NVS Novartis AG | $160.31 | +3.73% | $305B | 57 |
| AMGN Amgen Inc. | $442.36 | +4.02% | $239B | 86 |
| ORMP Oramed Pharmaceuticals Inc. | $4.79 | +0.21% | $196M | 77 |
| JNCE Jounce Therapeutics, Inc. | $1.88 | +0.00% | $99.0M | 71 |
| ICCC ImmuCell Corporation | $10.09 | -0.39% | $91.3M | 77 |
AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance
What Are MRSN's Key Strengths?
Innovative proprietary technology platforms for ADC development.
- Strong partnerships with major pharmaceutical companies.
- Experienced leadership team with expertise in biopharmaceuticals.
- High gross margin potential with successful product commercialization.
What Are MRSN's Weaknesses?
Currently operating at a significant loss with a profit margin of -211.2%.
- Dependence on successful clinical trial outcomes for product advancement.
- Limited product portfolio at this stage of development.
- Challenges in scaling operations to meet potential demand.
What Could Drive MRSN Stock Higher?
MRSN catalyst: Phase I clinical trial results for XMT-1592 expected in 2026, which could validate the company's approach to targeting NaPi2b-expressing tumors.
- Strategic partnerships with Merck KGaA and Asana BioSciences continue to enhance research capabilities and product development.
- Potential for new product candidates to emerge from ongoing R&D efforts, expanding the therapeutic pipeline.
- Active engagement with regulatory bodies to ensure compliance and facilitate timely approvals for clinical trials.
- Expansion of clinical trials into new geographic markets, potentially increasing patient enrollment and data diversity.
What Are the Key Risks for MRSN?
Financial-distress signal — its Altman Z-Score of -23.23 sits in the distress zone (elevated bankruptcy risk).
- Weak fundamentals — a Piotroski F-Score of 2/9 flags soft profitability, leverage or efficiency.
- Regulatory challenges may arise during the clinical trial process, delaying product development timelines.
- The company faces significant financial risks due to its current negative profit margin and reliance on external funding.
- Competition from other biopharmaceutical companies could impact Mersana's market position and pricing power.
- Clinical trial failures or adverse events could significantly affect the company's valuation and investor confidence.
What Are the Growth Opportunities for MRSN?
- Expansion of XMT-1592: Mersana's lead product candidate, XMT-1592, is currently in phase I clinical trials targeting NaPi2b-expressing tumors, including ovarian cancer and NSCLC. Successful trial outcomes could position Mersana as a key player in this lucrative segment.
- Development of XMT-1660: The company is also advancing XMT-1660, a B7-H4-targeted ADC candidate. As the understanding of immune checkpoint inhibitors improves, the market for B7-H4-targeted therapies is anticipated to expand, presenting Mersana with an opportunity to capture market share in a growing therapeutic area.
- Partnerships with Merck KGaA and Asana BioSciences: These strategic collaborations enhance Mersana's research capabilities and provide access to additional resources for the development of ADC candidates. Such partnerships are crucial in accelerating the development timeline and increasing the potential for successful commercialization.
- Geographic Expansion: Mersana has the potential to expand its market presence internationally, particularly in Europe and Asia, where there is a growing demand for innovative cancer therapies. This geographic diversification can mitigate risks associated with reliance on the U.S. market.
- Increased Investment in R&D: As Mersana continues to innovate within the ADC space, increased investment in research and development can lead to the discovery of new product candidates. The biopharmaceutical industry is seeing a surge in funding, which could support Mersana's growth initiatives.
What Threats Does MRSN Face?
- Intense competition from established biopharmaceutical companies.
- Regulatory hurdles that could delay product approvals.
- Market volatility affecting funding and investment in clinical-stage companies.
- Risks associated with clinical trial failures impacting company valuation.
What Are MRSN's Competitive Advantages?
- Proprietary technology platforms (Dolasynthen and Fleximer) that enhance drug delivery.
- Strong partnerships with established pharmaceutical companies, providing credibility and resources.
- Focus on niche markets within oncology, targeting specific tumor markers for ADCs.
- Experienced leadership team with a track record in biopharmaceutical development.
- Innovative approach to addressing unmet medical needs in cancer treatment.
What Does MRSN Do?
Mersana Therapeutics, Inc., founded in 2001 and headquartered in Cambridge, Massachusetts, is a clinical-stage biopharmaceutical company dedicated to developing antibody drug conjugates (ADCs) for cancer patients with significant unmet medical needs. The company was originally known as Nanopharma Corp. before rebranding in November 2005. Mersana focuses on harnessing its proprietary Dolasynthen technology to create ADCs that can deliver potent therapies directly to tumor cells, minimizing damage to healthy tissues. Currently, Mersana is advancing several key product candidates, including XMT-1592, which targets NaPi2b-expressing tumor cells and is undergoing phase I clinical trials for ovarian cancer and non-small cell lung cancer (NSCLC) adenocarcinoma. Additionally, the company is developing XMT-1660, a B7-H4-targeted Dolasynthen ADC candidate, and XMT-2056, an immunosynthen development candidate. Mersana has established strategic research and development partnerships with Merck KGaA and Asana BioSciences, LLC, aimed at leveraging its Fleximer technology for the development of ADC product candidates. The company's innovative approach positions it well within the competitive landscape of oncology therapeutics, as it seeks to provide effective treatment options for patients facing challenging cancer diagnoses.
What Products and Services Does MRSN Offer?
- Develop antibody drug conjugates (ADCs) for cancer treatment.
- Focus on targeting specific tumor markers to improve therapeutic efficacy.
- Conduct clinical trials to advance product candidates through regulatory processes.
- Establish strategic partnerships to enhance research and development capabilities.
- Utilize proprietary technologies such as Dolasynthen and Fleximer in product development.
- Address unmet medical needs in oncology through innovative therapies.
How Does MRSN Make Money?
- Generate revenue through the development and commercialization of ADC therapies.
- Leverage partnerships for co-development and shared research costs.
- Focus on clinical trial outcomes to attract investment and funding.
- Aim for licensing agreements with larger pharmaceutical companies for successful products.
- Utilize grant funding and government support for research initiatives.
What Industry Does MRSN Operate In?
The biotechnology industry is experiencing robust growth, driven by advancements in personalized medicine and increasing investments in research and development. Mersana Therapeutics, with its focus on antibody drug conjugates, is well-positioned to capitalize on this trend, particularly as the demand for targeted therapies continues to rise. The competitive landscape includes major players such as Genentech and Bristol-Myers Squibb, but Mersana's proprietary technology offers a unique differentiation in the ADC space.
Who Are MRSN's Key Customers?
- Oncology patients with specific tumor types targeted by Mersana's therapies.
- Healthcare providers and institutions seeking innovative cancer treatments.
- Pharmaceutical partners involved in co-development and commercialization.
- Investors interested in the biopharmaceutical sector.
- Regulatory bodies overseeing clinical trial approvals and product commercialization.
Company Profile
Mersana Therapeutics, Inc. operates in the Biotechnology industry within the Healthcare sector. It is headquartered in Cambridge, US. The company is led by CEO Martin H. Huber. MRSN has traded publicly since 2017.
Financial Health
Mersana Therapeutics, Inc.'s Piotroski F-Score is 2/9, a 9-point checklist of profitability, leverage and efficiency — flagging fundamental weakness worth scrutiny. Its Altman Z-Score of -23.23 places it in the distress zone, a signal of elevated financial risk.
Key Financial Metrics
Return on equity for Mersana Therapeutics, Inc. stands at 183.1%, a gauge of how efficiently it converts shareholder capital into profit. Its free cash flow yield is -51.2%, a gauge of the cash the business throws off relative to its market value. A current ratio of 1.39 indicates the company holds enough short-term assets to cover its near-term obligations. Its earnings yield is -48.3%, the inverse of the P/E and a quick read on earnings relative to price.
MRSN Valuation & Market Position
With a $145M market cap, Mersana Therapeutics, Inc. sits in the micro-cap segment of the market.
Forward Outlook
Wall Street analysts project Mersana Therapeutics, Inc. revenue of about $49.3M for fiscal 2026, with EPS near $-9.59. The estimate reflects 5 contributing analysts.
MRSN Financials
Fundamental Snapshot
Based on FMP financials and quantitative analysis · FY 2024
Bull Case vs Bear Case
Bull Case
- Recent insider buying activity suggests confidence in Mersana's strategic direction and upcoming product pipeline.
- Community sentiment has been increasingly positive, with discussions highlighting the potential of their lead candidate in clinical trials.
- Analysts are optimistic about the innovative approach Mersana is taking in antibody-drug conjugates, positioning them well in the competitive landscape.
- Recent partnerships and collaborations have sparked interest, indicating that Mersana is gaining traction in the biotech sector.
Bear Case
- Concerns over the long timelines typical in biotech development may lead to skepticism among investors.
- Recent market volatility has heightened risk aversion, impacting sentiment towards smaller biotech firms like Mersana.
- Some community members express doubts about the scalability of Mersana's technologies, fearing they may not achieve commercial success.
- Insufficient data from recent trials could lead to uncertainty about the efficacy of their drug candidates, dampening enthusiasm.
AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · April 2026
MRSN Latest News
No recent news available for MRSN.
Leadership: Martin H. Huber
CEO
Martin H. Huber has extensive experience in the biopharmaceutical industry, having held various leadership roles in both public and private companies. He has a strong background in drug development and commercialization, with a focus on oncology. Huber holds a Ph.D. in Biochemistry from a leading university, which complements his business acumen in the healthcare sector.
Track Record: Under Martin H. Huber's leadership, Mersana has advanced its clinical pipeline significantly, including the progression of XMT-1592 into phase I trials. His strategic vision has fostered key partnerships that enhance the company's research capabilities and market potential.
Common Questions About MRSN (Healthcare)
What happened to Mersana Therapeutics, Inc. (MRSN) stock?
Mersana Therapeutics, Inc. (MRSN) no longer trades on public markets. It was delisted in January 2026. The figures below are historical and are not a current quote.
Can I still buy MRSN shares?
No. MRSN stopped trading on public markets in January 2026, so the shares are not available through a broker. Anything you see quoted for MRSN 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 MRSN 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 Mersana Therapeutics, 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 Mersana Therapeutics, Inc. do?
Mersana Therapeutics, Inc. is a clinical-stage biopharmaceutical company that specializes in developing antibody drug conjugates (ADCs) for cancer treatment. The company focuses on targeting specific tumor markers to enhance therapeutic efficacy and minimize side effects. Its lead product candidate, XMT-1592, is currently in phase I clinical trials for ovarian cancer and NSCLC, showcasing Mersana's commitment to addressing unmet medical needs in oncology.
What is Mersana Therapeutics, Inc.'s drug pipeline status?
Mersana Therapeutics, Inc. is advancing several key product candidates in its pipeline. The lead candidate, XMT-1592, is in phase I clinical trials targeting NaPi2b-expressing tumors, while XMT-1660 and XMT-2056 are also in development. The company is focused on leveraging its proprietary technology to bring innovative therapies to market, with ongoing trials expected to provide critical data points for future growth.
What are the key growth opportunities for MRSN in healthcare?
Mersana Therapeutics, Inc. has several growth opportunities, including the expansion of its lead product candidate, XMT-1592, into new clinical indications and geographic markets. Additionally, the company is exploring the development of XMT-1660 and XMT-2056, which could diversify its product offerings. Strategic partnerships with established pharmaceutical companies further enhance its research capabilities, enabling Mersana to capitalize on the growing demand for targeted cancer therapies.
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
Data provided for informational purposes only.
- The information presented is based on the latest available data and may be subject to change as new developments occur.