Biogen Completes Acquisition of Apellis Pharmaceuticals
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 2 days ago
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Should l Buy BIIB?
Source: Newsfilter
Biogen Inc's stock fell 5.19% as it crossed below the 5-day SMA, reflecting a challenging market environment.
The company has successfully completed the acquisition of Apellis Pharmaceuticals, enhancing its market position in nephrology and expected to drive future revenue growth. Apellis' products, EMPAVELI® and SYFOVRE®, generated $689 million in net product revenue in 2025, which is anticipated to positively impact Biogen's non-GAAP diluted EPS. This acquisition allows Biogen to leverage Apellis' established infrastructure to expedite the launch readiness for felzartamab, with the first Phase 3 trial readout expected in the first half of 2027.
This strategic acquisition is expected to enhance Biogen's financial performance and boost investor confidence, despite the current stock decline.
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Analyst Views on BIIB
Wall Street analysts forecast BIIB stock price to rise
26 Analyst Rating
11 Buy
14 Hold
1 Sell
Moderate Buy
Current: 191.370
Low
143.00
Averages
204.45
High
246.00
Current: 191.370
Low
143.00
Averages
204.45
High
246.00
About BIIB
Biogen Inc. is a biotechnology company. The Company is focused on discovering, developing and delivering therapies. It has a portfolio of medicines to treat Multiple Sclerosis (MS), has introduced an approved treatment for Spinal Muscular Atrophy (SMA), co-developed treatments to address a defining pathology of Alzheimer’s disease and launched an approved treatment to target a genetic cause of Amyotrophic Lateral Sclerosis (ALS). It markets a drug approved in United States, European Union and certain international markets for the treatment of Friedreich Ataxia (FA) in adults and adolescents aged 16 years and older. It is focused on advancing its pipeline in neurology, specialized immunology and rare diseases. Its marketed products include VUMERITY, TYSABRI, TECFIDERA, AVONEX and PLEGRIDY for the treatment of MS; SPINRAZA for the treatment of SMA; SKYCLARYS for the treatment of FA, and QALSODY for the treatment of ALS. Its commercialized products also include EMPAVELI and SYFOVRE.
About the author
Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
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- Future Development Plans: Despite the setback, Biogen intends to advance diranersen to registrational development based on biomarker and efficacy data, indicating the company's belief in the drug's long-term potential.
- Legal Investigation Initiated: Following the disappointing trial results, Levi & Korsinsky law firm has launched an investigation into Biogen, focusing on whether the company made misleading statements that could affect investors' legal rights.
- Investor Action Recommendations: Affected investors are encouraged to gather trading records and contact Levi & Korsinsky for a free evaluation to understand potential legal remedies, ensuring their rights are protected.
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- Trial Results Disclosure: The company confirmed in its press release that the CELIA trial did not meet its primary endpoint; however, Biogen plans to advance diranersen to registrational development based on biomarker and efficacy data, indicating confidence in the drug's potential value despite the setback.
- Legal Investigation Initiated: Following the disclosure of the CELIA trial results, Levi & Korsinsky law firm has launched an investigation into Biogen, focusing on whether the company made materially false or misleading statements regarding the trial's failure, which may lead to more investors seeking legal remedies.
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- Trial Setback: Biogen's shares fell 6.4% on May 14, 2026, after the CELIA trial data failed to meet its primary dose-response endpoint, resulting in significant losses for investors and a decline in market confidence.
- Future Development Plans: Despite the setback, Biogen intends to advance diranersen to registrational development based on biomarker and efficacy data, indicating the company's belief in the drug's long-term potential.
- Legal Investigation Initiated: Following the disappointing trial results, Levi & Korsinsky law firm has launched an investigation into Biogen, focusing on whether the company made misleading statements that could affect investors' legal rights.
- Investor Action Recommendations: Affected investors are encouraged to gather trading records and contact Levi & Korsinsky for a free evaluation to understand potential legal remedies, ensuring their rights are protected.
See More
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- Significant Stock Drop: Biogen's shares fell 6.4% on May 14, 2026, after the CELIA trial data failed to meet its primary dose-response endpoint, resulting in substantial losses for investors and reflecting a decline in market confidence regarding the company's research capabilities.
- Trial Results Disclosure: The company confirmed in its press release that the CELIA trial did not meet its primary endpoint; however, Biogen plans to advance diranersen to registrational development based on biomarker and efficacy data, indicating confidence in the drug's potential value despite the setback.
- Legal Investigation Initiated: Following the disclosure of the CELIA trial results, Levi & Korsinsky law firm has launched an investigation into Biogen, focusing on whether the company made materially false or misleading statements regarding the trial's failure, which may lead to more investors seeking legal remedies.
- Investor Action Recommendations: Affected investors are encouraged to gather trading records and contact the law firm for a free evaluation, which could provide potential compensation opportunities, further impacting the company's reputation and shareholder confidence.
See More
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- Biogen's Turnaround Potential: Biogen focuses on neurology, and despite declining revenue from its multiple sclerosis products, Q1 2025 revenue rose 2% year-over-year to $2.5 billion, with Leqembi sales increasing 74% to $168 million, indicating significant market potential in Alzheimer's treatment.
- Acquisition-Driven Pipeline Expansion: By acquiring Reata Pharmaceuticals for $7.3 billion and Apellis Pharmaceuticals for $5.6 billion, Biogen has introduced new drugs like Skyclarys and Empaveli, with projected sales growth in the low to mid-teens through 2028, enhancing its product diversity.
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- Diversification Strategy: Novo Nordisk's $4.7 billion acquisition of Akero Therapeutics strengthens its metabolic treatment portfolio, while label expansions for its GLP-1 therapies in cardiovascular and chronic kidney disease treatments enhance clinical versatility, solidifying its competitive position in the healthcare insurance market.
See More
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- Clinical Trial Progress: Biogen announced its plan to advance an experimental Alzheimer's drug to Phase 3 testing despite disappointing mid-stage trial results, as it shows potential in reducing tau protein levels and slowing cognitive decline, particularly at the lowest dose.
- Drug Development Challenges: The company has faced setbacks in its Alzheimer's drug development journey, having successfully launched two drugs to slow cognitive decline, yet its first drug, Aduhelm, was withdrawn due to approval controversies, highlighting market uncertainties.
- Scientific Basis: Biogen's head of development, Dr. Priya Singhal, stated that the latest trial results demonstrate an unprecedented combination of tau reduction and cognitive benefits, emphasizing the necessity to move to Phase 3 testing, indicating progress in dose isolation.
- Competitive Landscape: In the Alzheimer's treatment arena, Biogen faces pressure from rival Eli Lilly, which is also studying drugs aimed at decreasing tau protein levels, underscoring the intense market competition and the urgent demand for innovative therapies.
See More
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See More
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- Clinical Trial Progress: Biogen announced its plan to advance an experimental Alzheimer's drug into Phase 3 testing despite disappointing mid-stage results, as signals from the lowest dose suggest potential tau reduction and cognitive decline slowing, indicating the drug's development value.
- Mechanism of Action: The drug Diranersen is an antisense oligonucleotide aimed at limiting tau protein production; although higher doses did not show better responses, the efficacy at lower doses provides hope for further research and could pave the way for new Alzheimer's treatments.
- R&D Challenges and Opportunities: Biogen has faced numerous setbacks in developing Alzheimer's drugs, with its first drug Aduhelm withdrawn due to controversy, yet the company remains committed to advancing new therapies, demonstrating resilience in this challenging field.
- Competitive Landscape: As Biogen pushes forward with its drug, rival Eli Lilly is also studying drugs aimed at decreasing tau levels, highlighting the intensifying competition in Alzheimer's treatment, necessitating Biogen to accelerate its R&D efforts to maintain market leadership.
See More
