BioMarin Pharmaceutical Inc. (BMRN) Stock Price & How to Invest

Last updated July 2026

Short answer

BioMarin (BMRN) is a large-cap rare-disease biopharma whose profile now hinges on scaling Voxzogo for achondroplasia and integrating the roughly $4.8B Amicus acquisition, so investors are essentially buying a portfolio of high-priced treatments for very small patient populations. You can hold it directly or as part of a healthcare or rare-disease theme rather than as a broad-market proxy.

BMRN stock price

As of 2026-08-18, BioMarin Pharmaceutical Inc. (BMRN) last closed at $66.99, up 16.9% over the past year. Over the past 52 weeks it has traded between $49.67 and $70.24.

BMRN last close
$66.99
1 day
+0.53%
1 month
+12.42%
1 year
+16.89%
52-week range
$49.67 to $70.24
Last close
2026-08-18

Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or BioMarin Pharmaceutical Inc.'s investor relations page. Walnut is informational, not investment advice.

What does BioMarin Pharmaceutical Inc. (BMRN) do?

BioMarin Pharmaceutical develops and sells therapies for rare genetic diseases, a niche where it has decades of experience. Its commercial base includes enzyme replacement therapies (Vimizim, Naglazyme, Palynziq and others) for lysosomal and metabolic disorders, plus Voxzogo, an injectable for children with achondroplasia that has become the company's fastest-growing product. In April 2026 BioMarin closed its roughly $4.8 billion all-cash acquisition of Amicus Therapeutics, adding Galafold for Fabry disease and the Pombiliti plus Opfolda regimen for Pompe disease to the portfolio. Separately, the company decided to withdraw its Roctavian hemophilia gene therapy from the market after failing to find a buyer, taking an asset write-down.

The investment picture is one of steady, high-margin growth from a diversified set of rare-disease franchises rather than a single blockbuster bet. BioMarin generated about $3.2 billion of revenue in 2025 and has guided 2026 revenue to roughly $3.83 to $3.93 billion, an acceleration driven largely by the Amicus products and continued Voxzogo uptake. The bull case is durable pricing power, orphan-drug exclusivity, and Voxzogo label expansion; the bear case is heavy reliance on a few products, integration risk from the Amicus deal, and a valuation that already prices in growth.

What's driving BioMarin Pharmaceutical Inc. (BMRN)?

1. Voxzogo growth engine

Voxzogo, for children with achondroplasia, generated roughly $920 million in 2025 and remains the primary growth driver, with most sales coming from outside the United States. BioMarin is pursuing label expansions and additional indications that could widen the addressable population. Continued patient additions are central to the company's raised 2026 outlook.

2. Amicus acquisition and portfolio breadth

The roughly $4.8 billion Amicus deal, completed in April 2026, added Galafold for Fabry disease and Pombiliti plus Opfolda for Pompe disease. Management expects the deal to be slightly dilutive to 2026 non-GAAP earnings but accretive starting in 2027. Successful integration diversifies revenue beyond the legacy enzyme therapies and Voxzogo.

3. Enzyme therapy base and margins

Established enzyme replacement products such as Vimizim, Naglazyme and Palynziq provide a stable, high-margin cash-generating base with long orphan-drug exclusivity. This recurring revenue funds research and the pipeline. Double-digit growth across enzyme therapies contributed to record 2025 revenue.

4. Pipeline optionality

BioMarin is advancing internal programs including BMN 333, BMN 351 and BMN 401, alongside further Voxzogo indications. These earlier-stage assets offer longer-term upside if trials read out well. The company has also shown willingness to prune assets, as with the Roctavian withdrawal, to focus resources.

What are the risks to BioMarin Pharmaceutical Inc. (BMRN)?

Revenue is concentrated in a handful of products, so a setback for Voxzogo or a key enzyme therapy would weigh heavily on results. Rare-disease pricing draws scrutiny from payers and governments, and much of Voxzogo's revenue comes from international markets subject to reimbursement pressure. Competition is emerging, including Ascendis Pharma's TransCon CNP in achondroplasia and multiple Fabry and Pompe therapies from larger rivals. The Amicus acquisition adds integration and execution risk, and the Roctavian withdrawal shows that expensive programs can fail commercially. The shares trade at a premium multiple, leaving little margin for disappointment.

What is the BioMarin Pharmaceutical Inc. (BMRN) forecast?

25 analysts publish price targets on BMRN, averaging $87.92 against a $60.02 price as of August 2026, or +46.5%. The published targets run from $50.00 to $120.00, a wide spread, and the ratings split 19 buy, 6 hold, 0 sell. Over the last six months there have been 3 raises and 6 cuts among the published actions. A price target is what an analyst published on a date, not a prediction, and sell-side ratings skew positive across the whole market.

Read the full BMRN forecast and price target for the target table, the recent rating actions by firm, and how the consensus has shifted.

Is BMRN a buy or a sell?

We give no verdict on BioMarin Pharmaceutical Inc.. Both cases are real, which is why the question is contested at all, so here is the strongest version of each.

The case for buying. Voxzogo growth engine. Voxzogo, for children with achondroplasia, generated roughly $920 million in 2025 and remains the primary growth driver, with most sales coming from outside the United States. The most optimistic published target, $120.00, assumes this works close to its best case.

The case against. Revenue is concentrated in a handful of products, so a setback for Voxzogo or a key enzyme therapy would weigh heavily on results. The most pessimistic target, $50.00, is roughly what BMRN is worth if this bites instead.

Read the full bull and bear case on BMRN, including what would have to change to break either one. Walnut is not an investment adviser.

How is BioMarin Pharmaceutical Inc. (BMRN) valued? (approximate, JULY 2026)

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see BioMarin Pharmaceutical Inc.'s investor relations page or your broker.

  • Revenue (2025): ~$3.2B
  • 2026 revenue guidance: ~$3.83B to $3.93B
  • Q1 2026 revenue: ~$766M
  • Q1 2026 non-GAAP EPS: ~$0.76
  • 2026 non-GAAP EPS guidance: ~$4.85 to $5.05
  • Market cap: ~$11B

BioMarin posted record 2025 revenue of about $3.2 billion and raised its 2026 revenue guidance to roughly $3.83 to $3.93 billion after adding the Amicus products, implying around 20 percent growth at the midpoint. Non-GAAP EPS guidance for 2026 was trimmed slightly to about $4.85 to $5.05 to reflect near-term dilution from the acquisition. Reported trailing GAAP multiples look elevated versus biotech peers, so the story depends on the guided growth materializing.

What themes does BioMarin Pharmaceutical Inc. (BMRN) fit?

These are the investment theses BMRN naturally fits into. Each links to a full theme guide listing every other stock that belongs and the ETFs commonly used as a passive proxy.

Who competes with BioMarin Pharmaceutical Inc. (BMRN)?

Rare-disease and orphan-drug specialists

Companies focused on genetic and rare diseases such as Ultragenyx, Alnylam, Sarepta Therapeutics and Vertex Pharmaceuticals compete for the same patient populations, physicians and pipeline assets, and set the market's expectations for orphan-drug growth and pricing.

Large-cap enzyme and metabolic players

Sanofi (Genzyme), Takeda and AstraZeneca's Alexion unit market competing enzyme replacement and Fabry or Pompe therapies, including Fabrazyme and Replagal, putting them in direct competition with BioMarin's core enzyme franchises and the acquired Amicus products.

Achondroplasia challengers

Voxzogo's leadership in achondroplasia faces emerging competition, most notably Ascendis Pharma's TransCon CNP, whose clinical progress could pressure BioMarin's fastest-growing product over time.

What stocks are similar to BioMarin Pharmaceutical Inc. (BMRN)?

Other names that sit close to BMRN: same theme, named as a direct competitor, or held beside it in the same funds. Each entry says which. Worth a look if you are thinking about diversification within a thesis rather than concentration on one ticker.

How to invest in BioMarin Pharmaceutical Inc. (BMRN)

There are three common ways to get BMRN exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic portfolio, so BMRN sits alongside other stocks that express the same thesis.

Walnut takes the portfolio route. Describe a thesis where BMRN fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

New to this? Start with how to invest in stocks, see how to analyze a stock with AI, or compare the best AI stock analyzers.

The bottom line on BioMarin Pharmaceutical Inc. (BMRN)

BMRN is a profitable, growing rare-disease specialist whose value rests on Voxzogo momentum and successful Amicus integration, offset by pipeline and pricing risk.

More on BioMarin Pharmaceutical Inc. (BMRN)

Whether BMRN is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is BMRN a buy or a sell?, and where the stock could go from here in the BMRN stock forecast.

For income investors, whether BMRN pays a dividend and how the payout looks is covered in does BMRN pay a dividend? And to weigh BMRN against a peer, read the full side-by-side comparisons: BMRN vs VRTX and BMRN vs REGN.

Wondering how BMRN fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.

Investing in BioMarin Pharmaceutical Inc. with AI

Connect the broker you already use and ask Walnut's AI how BMRN fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.

FAQ

What does BioMarin do?

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BioMarin develops and commercializes therapies for rare genetic diseases. Its portfolio includes enzyme replacement therapies for lysosomal and metabolic disorders, Voxzogo for children with achondroplasia, and, following the 2026 Amicus acquisition, Galafold for Fabry disease and the Pombiliti plus Opfolda regimen for Pompe disease.

How do you invest in BMRN?

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BMRN trades on the Nasdaq, so you can buy shares through any brokerage account, either as a standalone position or as part of a healthcare or rare-disease themed basket. Some investors also gain exposure indirectly through biotech and healthcare ETFs that hold the stock.

Is BMRN a good investment?

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That depends on your goals, time horizon and risk tolerance, and Walnut is not an investment adviser. The descriptive picture is a profitable rare-disease specialist with accelerating revenue but concentrated product risk and a premium valuation, so it is worth weighing the growth drivers against the risks yourself or with a licensed adviser.

What is BioMarin's biggest growth driver?

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Voxzogo, its treatment for children with achondroplasia, is the fastest-growing product, generating roughly $920 million in 2025. Continued patient additions and potential label expansions make it central to the company's raised 2026 outlook, alongside the newly acquired Amicus products.

Why did BioMarin acquire Amicus Therapeutics?

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BioMarin closed its roughly $4.8 billion all-cash acquisition of Amicus in April 2026 to broaden its rare-disease portfolio and accelerate revenue growth. The deal added Galafold for Fabry disease and Pombiliti plus Opfolda for Pompe disease, and management expects it to be slightly dilutive in 2026 and accretive from 2027.

What happened to Roctavian?

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Roctavian, BioMarin's gene therapy for severe hemophilia A, struggled commercially. After exploring a divestiture and failing to find a qualified buyer, the company decided to voluntarily withdraw Roctavian from the market and recorded an asset write-down, refocusing resources on higher-return programs.

Who are BioMarin's main competitors?

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Competitors include rare-disease specialists such as Ultragenyx, Alnylam, Sarepta and Vertex, large-cap enzyme and metabolic players like Sanofi, Takeda and AstraZeneca's Alexion unit, and, in achondroplasia specifically, Ascendis Pharma with its TransCon CNP program.

Does BioMarin pay a dividend?

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BioMarin has historically not paid a dividend, reinvesting cash flow into research, its pipeline and acquisitions such as the Amicus deal. Investors in BMRN have generally been looking for capital appreciation from growth rather than income.

Guides that feature BMRN

BMRN is one of the names covered in these guides. Each one puts the stock next to its peers so you can see where it fits rather than judging it alone.

Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with BioMarin Pharmaceutical Inc.'s investor relations page or your broker before making investment decisions.