BIIB

Biogen
D

BIIB

Arincen57/100B

If you had invested in Biogen ago, it would be worth $794 today, against $4,081 in SPY and $6,291 in QQQ.

ArincenArincen ScoreBeta

57/100

Six parts of the company, five checks each, from its own reported figures. A part scores the checks it passes out of 10; the score is their average out of 100.

Profitability4

Plus shows the checks behind each part of the score, what passed, what failed and the figure it read, for every stock.

Cash8

Plus shows the checks behind each part of the score, what passed, what failed and the figure it read, for every stock.

Valuation6.7

Plus shows the checks behind each part of the score, what passed, what failed and the figure it read, for every stock.

Growth6

Plus shows the checks behind each part of the score, what passed, what failed and the figure it read, for every stock.

Financial strength4

Plus shows the checks behind each part of the score, what passed, what failed and the figure it read, for every stock.

Shareholders—

Plus shows the checks behind each part of the score, what passed, what failed and the figure it read, for every stock.

Figures to FY2025; the price as of today.

Biogen key facts

Style
Blend stock · 1.1/10Growth 1.1 · Value 1.0
Day range
249.950 – 254.940
52-week range
153.770 – 258.780
Market capitalization
37.46B USD
P/E
107.39
PEG ratio
5.90
EPS
2.36
EPS growth forecast (FY2026)
-18.2%
Volume
53,015
Beta
0.17
ESG score
69.4/100Environment 70 · Social 64 · Governance 74
Sector
Healthcare
Industry
Drug Manufacturers - General
CEO
Christopher A. Viehbacher
Employees
8K
Website
biogen.com
IPO date
17 Sept 1991

Biogen earnings

Next earnings · Q4 FY2026
EPS estimate
2.81 USD
Revenue estimate
2.61B USD
Last quarter · Q3 FY2026
EPS2.62Beat +31.7%Revenue2.80BBeat +6.4%

Revenue

ReportedEstimate

EPS

ReportedEstimate
PeriodReport dateEPS estimateReported EPSSurpriseEPS growthRevenue estimateReported revenueSurpriseRevenue growth
Q3 FY20274.19——+60.01%2.73B——-2.61%
Q2 FY20274.17——+15.92%2.73B——-0.07%
Q1 FY20273.55——-0.52%2.63B——+6.19%
Q4 FY20262.81——+41.21%2.61B——+14.37%
Q3 FY20261.992.62+31.66%-45.53%2.63B2.80B+6.43%+14.23%
Q2 FY20262.943.60+22.45%-34.19%2.46B2.74B+11.20%+3.42%
Q1 FY20263.053.57+17.05%+18.21%2.29B2.48B+8.35%+1.93%
Q4 FY20251.631.99+22.09%-42.15%2.20B2.28B+3.48%-7.14%
Q3 FY20253.884.81+23.97%+17.89%2.34B2.45B+4.91%-0.45%
Q2 FY20253.905.47+40.26%+3.60%2.33B2.65B+13.63%+12.43%

Analysts' estimates for FY2026 over the last 7 days:EPS Revenue How the estimates moved

Biogen analyst forecast

12-month price target
261.83 USD
+3.31%

Analysts' 1-year price targets range from 175.00 to 325.00, with an average of 261.83.

Past year
1-year forecast
Strong sellStrong buy
Buy
24 ratings
Buy
16
Hold
7
Sell
1

12-month price target

Highest target325.00
Average target261.83
Lowest target175.00
Current price253.44

Biogen valuation

Price to earnings ratio (TTM)
107.39
Forward P/E (FY2026)
20.27
Price to sales (TTM)
3.64
Price to book
1.98
EV / EBITDA (TTM)
30.35

Capital structure

Market capitalization
37.46B USD
+
Total debt
7.80B USD
−
Cash and short-term investments
1.30B USD
=
Enterprise value
43.96B USD

Valuation over time

P/EForward P/EForward P/E · EstimateEstimate
Fiscal yearP/EForward P/EP/SP/BEV/EBITDA
FY2028 (est.)13.81————
FY2027 (est.)15.6113.81———
FY2026 (est.)20.2715.61———
Now (TTM)107.3916.093.641.9830.35
FY202519.8914.082.631.4110.10
FY202413.6510.242.301.338.86
FY202332.2715.823.812.5318.40
FY202213.2118.453.963.0012.28
FY202122.9814.033.263.2810.48

Biogen against its own history

Each figure in the latest fiscal year against the same figure from FY2021 to FY2025: the range, its median (the line) and the latest (the dot, green on the good side of the median). The P/E is today's against its daily readings of five years.

Its peers: Bristol-Myers Squibb, Pfizer, Gilead Sciences, Amgen, and Organon &, the US Drug Manufacturers - General companies closest to it in size, each in its own latest fiscal year: their median (the line) and its rank among them, first being the best.

  • P/E (today)Above its median107.4
    10.1108.0
  • Gross marginLowest in 5 years69.9%
    69.9%80.8%
    Against its peers: 5 of 6Peers' median 71.1%
  • Operating marginLowest in 5 years19.0%
    19.0%28.4%
    Against its peers: 6 of 6Peers' median 28.5%
  • Net marginBelow its median13.1%
    11.8%29.9%
    Against its peers: 4 of 6Peers' median 14.6%
  • Return on equityLowest in 5 years7.1%
    7.1%22.7%
    Against its peers: 6 of 6Peers' median 37.5%
  • Free cash flow marginAt its median20.7%
    11.2%30.8%
    Against its peers: 4 of 6Peers' median 22.0%
  • Revenue growthHighest in 5 years2.2%
    -18.3%2.2%
    Against its peers: 3 of 6Peers' median -0.2%
  • EPS growthAt its median-21.1%
    -61.8%100.7%
    Against its peers: 4 of 5Peers' median 42.3%
  • Debt to EBITDAAbove its median2.36×
    1.87×3.09×
    Against its peers: 2 of 6Peers' median 3.23×
  • Current ratioAbove its median2.68
    1.352.99
    Against its peers: 1 of 6Peers' median 1.26

Peers: US companies of the same industry (of its sector when the industry has too few) from a tenth to ten times its market value, the six closest in size. Updated weekly.

Biogen growth and profitability

Revenue (TTM)
10.30B USD
Net income (TTM)
347.50M USD
Gross margin
70.05%
Operating margin
7.64%
Net margin
3.37%

Revenue / Net income

Revenue Net income Net margin
PeriodRevenueGrowthNet incomeGrowthGross marginOperating marginNet marginEBITDAGrowth
FY20259.89B+2.22%1.29B-20.76%69.90%18.98%13.08%2.95B-1.69%
FY20249.68B-1.62%1.63B+40.57%76.12%25.74%16.87%3.00B+26.03%
FY20239.84B-3.32%1.16B-61.89%74.24%21.32%11.81%2.38B-32.79%
FY202210.17B-7.36%3.05B+95.80%77.61%28.40%29.95%3.54B-9.85%
FY202110.98B-18.32%1.56B-61.10%80.79%25.42%14.17%3.92B-23.20%

Biogen revenue breakdown

By product

FY2025
MS Product Revenues: 42.0%TYSABRI product: 17.3%SPINRAZA: 16.1%Fumarate: 14.8%Interferon: 9.8%42.0%MS Product Revenues17.3%TYSABRI product16.1%SPINRAZA14.8%Fumarate9.8%Interferon
SegmentRevenueShare of revenueChange on the year
MS Product Revenues4.04B42.0%-7.1%
TYSABRI product1.67B17.3%-2.9%
SPINRAZA1.55B16.1%-1.7%
Fumarate1.43B14.8%-10.6%
Interferon945.60M9.8%-2.3%

By region

FY2025
Non-US: 60.1%United States: 39.9%60.1%Non-US39.9%United States
RegionRevenueShare of revenueChange on the year
Non-US3.57B60.1%-10.2%
United States2.37B39.9%-26.7%

How Biogen makes its money

Revenue9.89B 100.0%
Cost of revenue2.90B 29.3%
Gross profit6.91B 69.9%
Research and development1.95B 19.8%
Selling and administration2.43B 24.6%
Other operating expenses647.70M 6.5%
Operating income1.88B 19.0%
Tax108.11M 1.1%
Other expense476.00M 4.8%
Net income1.29B 13.1%

FY2025, in USD. Each band is as wide as its money; the percentage is its share of revenue.

Biogen financial health

Cash and short-term investments
1.30B USD
Total debt
7.80B USD
Net cash
-6.50B USD
Current ratio
1.95
Debt to equity
0.41
Piotroski score
5 / 9
Altman Z-score
3.11

Cash, debt and free cash flow

Cash and short-term investments Total debt Free cash flow
Fiscal yearCash and short-term investmentsTotal debtFree cash flow
FY20253.82B6.95B2.05B
FY20242.38B6.63B2.52B
FY20231.05B7.34B1.24B
FY20224.89B6.61B1.14B
FY20213.80B7.60B3.38B

Biogen ownership

Institutions
97.18%
Institutional holders
1,103 (+40)
Free float
99.25%

Who owns the shares

Institutions 97.2% Others 2.8%
As of 30 Jun 2026

Shares free to trade

Free float 146.70M shares ·99.2% Closely held 1.12M shares ·0.8%

Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.

Insider trading

QuarterPurchasesSalesShares acquiredShares disposed of
Q4 2026001.01K35.00
Q3 2026027.41K1.19K
Q2 20260017.54K4.00K
Q1 202612189.18K112.84K

Shares outstanding

Basic shares Diluted shares Change in diluted shares
Fiscal yearBasic sharesDiluted sharesChange in diluted shares
FY2025146.70M146.70M+0.55%
FY2024145.70M145.90M+0.21%
FY2023144.70M145.60M-0.27%
FY2022145.30M146.00M-2.41%
FY2021149.10M149.60M-7.25%

Source: Financial Modeling Prep

Related Instruments

Title: Biogen

Sector: Healthcare
Industry: Drug Manufacturers - General
Biogen is an established biopharmaceutical company focused on treatments for neurodegenerative and rare diseases. Its declining multiple sclerosis franchise is its largest revenue generator and contributed 40% of total revenue in 2025. Biogen also generates significant revenue from its CD20 collaboration agreements with Roche (19% of total in 2025), which includes oncology drugs Rituxan and Gazyva and multiple sclerosis drug Ocrevus. Biogen's newer franchises include Spinraza (spinal muscular atrophy, with partner Ionis), Leqembi (Alzheimer's disease, collabroation revenue from its partner Eisai), Skyclarys (Friedreich's ataxia, Reata), Zurzuvae (postpartum depression, Sage), and Qalsody (amyotrophic lateral sclerosis, Ionis).

Common questions about Biogen stock