BioMarin to acquire Amicus for $4.8 billion
BioMarin Pharmaceutical Inc. experienced a significant price increase of 13.00%, reaching a 20-day high amid positive market conditions, with the Nasdaq-100 up 0.81% and the S&P 500 up 0.22%.
This surge is attributed to BioMarin's announcement of a $4.8 billion acquisition of Amicus Therapeutics, which is expected to enhance its portfolio in rare disease treatments. The deal, valued at $14.50 per share, is anticipated to accelerate revenue growth and significantly impact BioMarin's earnings per share within the first year after closing, with substantial benefits expected starting in 2027.
The acquisition not only strengthens BioMarin's market position but also adds two high-growth therapies, Galafold and Pombiliti + Opfolda, which are projected to drive long-term revenue growth through 2030 and beyond.
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- Unique Market Position: Analyst John Boyle highlights BridgeBio's unique position with the accelerating launch of Attruby and near-term NDA submissions, setting the stage for late-2026/early-2027 launches in the rare genetic disease treatment market.
- Product Competitive Edge: Market surveys indicate that prescribers view both Attruby and Amvuttra as superior to Pfizer's Tafamidis, which has approximately $6 billion in annual sales, suggesting that BridgeBio's products are gaining traction in clinical applications.
- Sales Forecast and Risks: The analyst models U.S. sales of Attruby reaching $3.4 billion by 2035, while acknowledging potential generic entry risks in late 2028; however, Attruby's strong TTR stabilization and simple twice-daily dosing could justify premium pricing.
- Other Market Opportunities: BridgeBio also sees significant market opportunities with other rare disease drugs, particularly infigratinib for achondroplasia and encaleret for autosomal dominant hypocalcemia type 1, with the latter achieving its primary endpoint in the CALIBRATE Phase 3 study in October 2025, indicating strong future prospects.
- Strategic Update: BioMarin Pharmaceutical emphasized its strategic refresh at the TD Cowen conference, particularly through the Inozyme deal and the pending Amicus acquisition, aiming to expand enzyme therapy scale across approximately 80 countries, thereby enhancing its competitive position in the rare disease market.
- Revenue Outlook: Despite anticipating a roughly 3% revenue headwind in 2026 due to the removal of ROCTAVIAN and Kuvan revenue declines, BioMarin expects core enzyme and skeletal businesses to grow at mid-to-high single digits, targeting a 40% operating margin by 2026.
- Competitive Dynamics: BioMarin anticipates new FDA-approved competition for Voxzogo; however, management believes that patient switching will be gradual due to its five-year market lead and strong patient adherence, which will help maintain market share.
- Clinical Catalysts: BioMarin is advancing multiple clinical trials, including a Phase 3 study for hypochondroplasia and a pediatric Phase 3 study for BMN 401, which are expected to provide significant growth drivers for the company, particularly in the global rare disease treatment landscape.
- Hernexeos Approval: On February 26, 2026, the FDA granted accelerated approval to Boehringer Ingelheim's Hernexeos as a first-line treatment for adult patients with HER2-mutant advanced non-small cell lung cancer, representing a significant milestone that could improve patient prognosis and reduce the risk of brain metastases for the 2-4% of NSCLC cases affected.
- Yuviwel Launch: Ascendis Pharma secured FDA approval on February 27, 2026, for Yuviwel, the first and only therapy providing continuous systemic exposure to C-type natriuretic peptide (CNP) for children aged 2 and older with achondroplasia, which is expected to enhance treatment adherence compared to daily alternatives.
- Palynziq Indication Expansion: BioMarin received FDA approval on February 27, 2026, to expand Palynziq's indication to include pediatric patients aged 12 and older with phenylketonuria, which is anticipated to further drive sales growth, having generated $433 million in revenue in 2025.
- Sogroya New Indications: Novo Nordisk obtained FDA approval on February 27, 2026, for Sogroya's expanded indications for various growth disorders, offering a once-weekly growth hormone alternative that is expected to improve treatment adherence and alleviate the burden of daily injections for families.
- FDA Study Requirement: The U.S. FDA has mandated that UniQure conduct a placebo-controlled trial to validate the efficacy of its gene therapy for Huntington's disease, despite the company's claims that such a trial is unethical due to the need for prolonged general anesthesia.
- Clinical Trial Controversy: An FDA official indicated that UniQure's clinical trial data does not meet approval criteria, suggesting that the company may be aware of its earlier trial failures and has not pursued necessary clinical studies.
- Stock Price Fluctuation: Despite facing challenges from the FDA, UniQure's stock rose over 10% on Thursday, although it has fallen 58% this year, reflecting market concerns regarding the therapy's prospects.
- Regulatory Tensions: The relationship between UniQure and the FDA is increasingly strained, with the agency facing criticism for recent drug application rejections, and UniQure accusing the FDA of reversing its acceptance standards for the company's clinical trial data.
- Regulatory Standards Controversy: Congressman Jake Auchincloss criticized FDA Commissioner Marty Makary for replacing standards of safety and efficacy with fear and favoritism, undermining patient confidence in new therapies and impacting the market launch of innovative drugs.
- Staffing Losses: The FDA has experienced significant staff reductions in its Center for Drug Evaluation and Research, with oncology review staff dropping from about 100 to below 60, which may lead to approval delays and incomplete response letters.
- Decline in Accelerated Approvals: In 2024, the FDA approved 20 drugs through the accelerated approval process, down from 9 the previous year, indicating a direct impact on drug approval efficiency due to the loss of experienced reviewers.
- New Therapy Approval Pathways: The FDA proposed a new system for approving personalized drugs aimed at rare diseases, intending to provide more flexible approval pathways, but this change has sparked widespread controversy, affecting the agency's core mission.
- FDA Approval: The U.S. FDA has approved BioMarin's supplemental application for Palynziq (pegvaliase-pqpz), making it the only enzyme substitution therapy approved for managing phenylketonuria (PKU) in adolescents aged 12 and older, marking a significant advancement for the company in the rare disease sector.
- Clinical Study Results: The approval is based on the Phase 3 PEGASUS study, which demonstrated statistically significant reductions in blood phenylalanine levels at Week 72 for individuals on Palynziq compared to those on diet alone, indicating the drug's effectiveness in improving patient health outcomes.
- Market Performance Analysis: BioMarin's stock is currently trading at $59.30, which is 4.5% below its 20-day simple moving average and 8.2% below its 100-day simple moving average, reflecting short-term market weakness, with shares down approximately 19% over the past 12 months.
- Analyst Ratings: Despite the challenging market environment, BioMarin's stock carries a Buy rating with an average price target of $88.80, with recent target increases from analysts like Canaccord Genuity and Bernstein, indicating confidence in the company's future potential.










