A Fresh Look at Insmed’s (INSM) Valuation Following Positive EU Nod for BRINSUPRI

Simply Wall St

Insmed (INSM) shares are catching attention after the Committee for Medicinal Products for Human Use of the European Medicines Agency issued a positive opinion in favor of approving BRINSUPRI, the company’s DPP1 inhibitor for non-cystic fibrosis bronchiectasis.

See our latest analysis for Insmed.

Momentum has been building for Insmed, with the latest regulatory green light in Europe turning heads after a remarkable 30-day share price return of 20.62% and a year-to-date climb of 136.30%. Looking further out, the total shareholder return over the past three years has reached an impressive 844.51%, showcasing both strong recent interest and long-term growth potential.

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With shares soaring and attention on the recent regulatory milestone, the key question becomes whether Insmed’s current valuation fully reflects its future prospects or if there is still room for investors to capitalize on further growth.

Most Popular Narrative: 4.2% Undervalued

Insmed's fair value, according to the most widely followed narrative, stands at $172.59 compared to a last close of $165.29. With the share price not yet at the projected fair value, there is growing anticipation around the drivers supporting this estimate.

Positive clinical data for TPIP in pulmonary arterial hypertension and favorable regulatory developments have strengthened the view of long-term growth, with improved confidence in Insmed’s ability to capture multi-billion dollar opportunities in bronchiectasis and other areas.

Read the complete narrative.

Want to know the bold numbers fueling this outlook? The narrative is betting on a surge in future revenue and a profit transformation that could change Insmed’s market standing. Curious what ambitious targets drive this valuation? Discover the high-stakes financial moves underpinning the story.

Result: Fair Value of $172.59 (UNDERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, risks remain, including potential delays in regulatory decisions or slower than expected commercial uptake, which could challenge the current bullish outlook.

Find out about the key risks to this Insmed narrative.

Another View: How Multiples Tell a Different Story

While analyst and fair value models point to Insmed being undervalued, comparing the company's price-to-book ratio to peers and industry benchmarks suggests a different risk. Insmed trades at 28x book value, which is much higher than the US Biotechs industry average of 2.5x and peers at 9.3x. This raises questions about valuation comfort if market sentiment shifts. Could Insmed's premium position present an opportunity or a caution flag for new investors?

See what the numbers say about this price — find out in our valuation breakdown.

NasdaqGS:INSM PB Ratio as at Oct 2025

Build Your Own Insmed Narrative

If you want to dig into the numbers and develop your own perspective, you can craft your own Insmed narrative in just a few minutes. Do it your way.

A great starting point for your Insmed research is our analysis highlighting 2 key rewards and 2 important warning signs that could impact your investment decision.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Valuation is complex, but we're here to simplify it.

Discover if Insmed might be undervalued or overvalued with our detailed analysis, featuring fair value estimates, potential risks, dividends, insider trades, and its financial condition.

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