Last Update20 Sep 25Fair value Decreased 1.12%
Biogen's modestly reduced consensus price target reflects a balanced analyst view, with optimism around strong Q2 performance, pipeline progress, and portfolio refocusing offset by lingering regulatory overhangs and a muted near-term growth outlook, resulting in a slight decrease in fair value from $171.96 to $170.03.
Analyst Commentary
- Bullish analysts cite strong Q2 performance, particularly from Leqembi and the MS franchise, as well as solid sales across other programs as drivers for raised price targets.
- Advancements in Biogen's pipeline, including progress with BIIB142 from the C4 Therapeutics collaboration and the investigational SMA asset salanersen, are viewed as offering long-term revenue upside and expanding addressable markets.
- Pipeline maturation, portfolio refocusing, and the approach of a more catalyst-rich period, especially in Immunology/Inflammation and neuro candidates, are highlighted as areas for meaningful growth and limited downside risk.
- Bearish analysts flag a lackluster growth outlook over the next few years and see the company as inexpensive but lacking a compelling near-term buy thesis despite recent earnings beats.
- FDA highlighting possible safety signals related to Leqembi introduces some regulatory overhang, though analysts expect only minor impacts such as potential label updates rather than major regulatory action.
What's in the News
- The European Commission approved ZURZUVAE (zuranolone) as the first and only treatment for postpartum depression (PPD) in the E.U., following positive Phase 3 data showing significant reduction in depressive symptoms.
- Biogen and partner Eisai launched LEQEMBI (lecanemab), the first disease-modifying Alzheimer’s therapy targeting amyloid plaque and protofibrils, in Austria and Germany, following EC approval; FDA review is underway for a subcutaneous autoinjector.
- Clinical data for Biogen’s zorevunersen, in collaboration with Stoke Therapeutics, show potential as a first disease-modifying therapy for Dravet syndrome, prompting the start of the pivotal Phase 3 EMPEROR trial; Biogen holds ex-U.S. rights.
- Biogen initiated the PROMINENT Phase 3 trial for felzartamab in primary membranous nephropathy, addressing a significant unmet need in this severe kidney disease.
- Biogen announced a $2 billion expansion of manufacturing in North Carolina's Research Triangle Park to support late-stage pipeline advancement and enhance antisense oligonucleotide and automation capabilities.
Valuation Changes
Summary of Valuation Changes for Biogen
- The Consensus Analyst Price Target remained effectively unchanged, moving only marginally from $171.96 to $170.03.
- The Future P/E for Biogen remained effectively unchanged, moving only marginally from 15.03x to 14.88x.
- The Discount Rate for Biogen remained effectively unchanged, moving only marginally from 7.19% to 7.23%.
Key Takeaways
- Biogen is positioned for long-term growth through expanding global access to key therapies, leveraging increasing disease diagnoses and improved healthcare infrastructure.
- Streamlined operations, diverse late-stage pipeline, and digital engagement efforts are expected to strengthen earnings and reduce future revenue volatility.
- Biogen faces intense competition, pricing, and policy pressures, making its future growth highly dependent on the success of a few new product launches.
Catalysts
About Biogen- Biogen Inc. discovers, develops, manufactures, and delivers therapies for treating neurological and neurodegenerative diseases in the United States, Europe, Germany, Asia, and internationally.
- Demand for Biogen's Alzheimer's therapy LEQEMBI is poised for structural long-term growth, supported by a rapidly aging global population and accelerating rates of mild cognitive impairment diagnoses facilitated by breakthroughs in blood-based biomarkers and expanding diagnostic infrastructure. These factors position Biogen to capture a larger patient pool and drive sustained revenue expansion.
- Broad international rollout and expanding reimbursement for SKYCLARYS and ZURZUVAE, particularly in rare diseases and underpenetrated markets, leverages growing global healthcare spending and improvements in medical infrastructure worldwide, increasing access and boosting long-term topline growth.
- Enhancements in operational efficiency through ongoing "Fit for Growth" initiatives, disciplined cost management, and portfolio prioritization are expected to improve cost control, drive higher net margins over time, and support stronger earnings.
- Robust late-stage and diversified neurodegenerative and specialty disease pipelines-including Phase III launches in SMA, lupus, and kidney indications-capitalize on regulatory momentum to address high unmet needs, creating multiple shots on goal that reduce future revenue volatility and support long-term earnings stability.
- Adoption of digital health, streamlined diagnostics, and direct-to-consumer patient engagement campaigns (especially for LEQEMBI) are expected to accelerate diagnosis, increase therapy uptake, and support value-based pricing, contributing to higher revenue and improved margin capture.
Biogen Future Earnings and Revenue Growth
Assumptions
How have these above catalysts been quantified?- Analysts are assuming Biogen's revenue will decrease by 2.1% annually over the next 3 years.
- Analysts assume that profit margins will increase from 15.3% today to 22.4% in 3 years time.
- Analysts expect earnings to reach $2.1 billion (and earnings per share of $15.44) by about September 2028, up from $1.5 billion today. However, there is a considerable amount of disagreement amongst the analysts with the most bullish expecting $3.1 billion in earnings, and the most bearish expecting $1.6 billion.
- In order for the above numbers to justify the analysts price target, the company would need to trade at a PE ratio of 15.0x on those 2028 earnings, up from 13.8x today. This future PE is lower than the current PE for the US Biotechs industry at 15.3x.
- Analysts expect the number of shares outstanding to grow by 0.61% per year for the next 3 years.
- To value all of this in today's terms, we will use a discount rate of 7.19%, as per the Simply Wall St company report.
Biogen Future Earnings Per Share Growth
Risks
What could happen that would invalidate this narrative?- Ongoing and accelerating competitive pressures in the ex-U.S. multiple sclerosis (MS) business, particularly for TECFIDERA in Europe due to generic and biosimilar entrants, are expected to impact revenue and market share, leading to potential further erosion of international sales and profit margins.
- Despite claims of pipeline advancement, Biogen's future growth remains heavily dependent on the commercial performance of a small number of new launches (e.g., LEQEMBI, SKYCLARYS, ZURZUVAE); any clinical, regulatory, or commercial setbacks for these assets could threaten revenue stability and long-term earnings.
- Industry-wide shifts toward biosimilars and generics, as well as government and payer policy pressures around high-cost specialty therapies (including mounting reimbursement challenges and discount dynamics, especially in international markets), are likely to compress gross margins and restrain topline growth for Biogen's core branded portfolio.
- The Alzheimer's and lupus markets are becoming increasingly competitive with the entry of new therapies and alternative modalities; Biogen may face headwinds related to differentiation, efficacy, and market adoption, which could dampen the ramp-up of key pipeline assets and future revenue streams.
- The sustainability of cost controls and margin expansion (via Fit for Growth and restructuring initiatives) is uncertain, especially as Biogen plans increased R&D investments and faces higher interest costs from additional debt-potentially pressuring net earnings if topline growth does not keep pace.
Valuation
How have all the factors above been brought together to estimate a fair value?- The analysts have a consensus price target of $171.96 for Biogen based on their expectations of its future earnings growth, profit margins and other risk factors. However, there is a degree of disagreement amongst analysts, with the most bullish reporting a price target of $260.0, and the most bearish reporting a price target of just $128.0.
- In order for you to agree with the analyst's consensus, you'd need to believe that by 2028, revenues will be $9.4 billion, earnings will come to $2.1 billion, and it would be trading on a PE ratio of 15.0x, assuming you use a discount rate of 7.2%.
- Given the current share price of $143.6, the analyst price target of $171.96 is 16.5% higher.
- We always encourage you to reach your own conclusions though. So sense check these analyst numbers against your own assumptions and expectations based on your understanding of the business and what you believe is probable.
How well do narratives help inform your perspective?
Disclaimer
AnalystConsensusTarget is a tool utilizing a Large Language Model (LLM) that ingests data on consensus price targets, forecasted revenue and earnings figures, as well as the transcripts of earnings calls to produce qualitative analysis. The narratives produced by AnalystConsensusTarget are general in nature and are based solely on analyst data and publicly-available material published by the respective companies. These scenarios are not indicative of the company's future performance and are exploratory in nature. Simply Wall St has no position in the company(s) mentioned. Simply Wall St may provide the securities issuer or related entities with website advertising services for a fee, on an arm's length basis. These relationships have no impact on the way we conduct our business, the content we host, or how our content is served to users. The price targets and estimates used are consensus data, and do not constitute a recommendation to buy or sell any stock, and they do not take account of your objectives, or your financial situation. Note that AnalystConsensusTarget's analysis may not factor in the latest price-sensitive company announcements or qualitative material.