Fundamental analysis · SEC EDGAR · TTM through 31/03/2026

Fundamental analysis of Biogen Inc.

BIIB · Nasdaq · Healthcare

Fundamental quality

DEMANDING

54

out of 100

Biogen Inc. runs like a cash machine: it converts about 24.4% of revenue into free cash flow and holds a 13.8% net margin, though it grows at a measured pace. On fundamental quality it scores 54 out of 100, profiling it as a company with demanding fundamentals. Its weakest area is its growth (revenue -5.6%/yr). Whether it's cheap or expensive depends on the current price, which you can compute in the tool.

What the company does

Biogen is one of the veteran biotechs, specialized in nervous-system diseases: multiple sclerosis, spinal muscular atrophy and the riskiest bet of all, Alzheimer's. It lives the classic pharma dilemma: mature franchises in decline and a new generation that needs to work.

What will shape its future

  • Its Alzheimer's treatments: the potential market is huge; adoption is the unknown.
  • The erosion of its old multiple-sclerosis franchises by competition.
  • Its pipeline and acquisitions, the route to rebuilding lost growth.

Breakdown by area

I.Growth
8

EPS growth: -17.1% · Revenue growth: -5.6%

II.Profitability
63

Net margin: 13.8% · ROE: 7.4% · ROIC: 7.4%

III.Financial health
91

Net debt/EBITDA: 1.08x · FCF: 24.4%

Source: SEC EDGAR · TTM through 31/03/2026

The score combines growth, profitability and financial strength. Here its financial strength weighs in its favor, while its growth drags it down the most.

Versus its sector

Percentile against the other 57 Healthcare companies in our coverage: how far it beats them on each metric (100 = best in sector).

Net marginbeats 61%
ROEbeats 24%
Growthbeats 0%
Cash generationbeats 87%
Less debtbeats 71%

Computed from the daily dataset scores. A high percentile places the company among the best in its sector on that metric; it is not a buy recommendation.

Key concepts

What do these metrics mean? Fundamental analysis · What is the P/E · What is EPS · What is ROE · Net & gross margin · Free cash flow

Biogen Inc. strengths

  • Excellent free-cash-flow generation (FCF margin of 24.4%): profit turns into real cash.
  • Solid net margin (13.8%): the business is clearly profitable.
  • It has cut its net debt over the period.
  • Positive free cash flow year after year, a self-funding business.

Biogen Inc. risks and weaknesses

  • Shrinking margins: net margin has fallen from 30% to 13% in recent years.
  • Declining revenue (-5.6% annualized).
  • Declining earnings per share (-17.1% annualized).

Biogen Inc. historical evolution

YearRevenueNet incomeFree cash flowNet debt
202013,4454,0013,8056,095
202110,9821,5563,3825,012
202210,1733,0471,1442,862
20239,8361,1611,2705,888
20249,6761,6322,7223,921
20259,8911,2932,0513,278

Between 2020 and 2025, revenue went from $13,445M to $9,891M (-26%) and net income went from $4,001M to $1,293M (-68%). Meanwhile, its margins have narrowed (from 30% to 13%).

Annual figures in millions of U.S. dollars ($M) per SEC filings. Net debt is total debt minus cash.

Latest results

Versus the same period a year earlier

Figures for the quarter ended March 31, 2026, versus the quarter ended March 31, 2025 (SEC filings):

  • Revenue+1.9%
  • Net income+32.8%

Automatic comparison between the two most recent periods filed with the SEC. One quarter doesn't make a trend: read it alongside the historical evolution above.

Dividend

This company doesn't pay a dividend: it reinvests all its earnings back into the business.

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Is Biogen Inc. cheap or expensive?

That depends on the current price. Look it up, enter it in the tool and get the full valuation verdict (P/E against its sector).

Compute the valuation →

Frequently asked questions

Is Biogen Inc. a good company to invest in?

In terms of business quality, Biogen Inc. scores 54 out of 100 in our analysis, placing it as a company with demanding fundamentals. That said, this isn't a recommendation: whether it's a good investment also depends on its current price and your goals.

Is Biogen Inc. a profitable company?

Yes. Biogen Inc. shows a net margin of 13.8% and an ROE of 7.4%, a sign of a profitable business.

Does Biogen Inc. have a lot of debt?

Not particularly. Its net debt is 1.08 times its EBITDA, a low level.

Is Biogen Inc. growing?

Its revenue has fallen 5.6% annualized in recent years.

Does Biogen Inc. generate cash?

Yes. It converts about 24.4% of its revenue into free cash flow, and has done so positively year after year.

The thresholds are general and the system doesn't judge qualitative factors. See the full methodology and use this analysis as a first filter, never as a final decision.

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