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Side-by-side financial comparison of Biogen (BIIB) and RedHill Biopharma Ltd. (RDHL). Click either name above to swap in a different company.

Biogen is the larger business by last-quarter revenue ($2.3B vs $18.3M, roughly 124.2× RedHill Biopharma Ltd.). Biogen runs the higher net margin — -2.1% vs -63.8%, a 61.7% gap on every dollar of revenue. On growth, Biogen posted the faster year-over-year revenue change (-7.1% vs -14.7%).

Biogen Inc. is an American multinational biotechnology company based in Cambridge, Massachusetts, United States specializing in the treatment of neurological diseases. The company's primary products are dimethyl fumarate (Tecfidera), diroximel fumarate (Vumerity), interferon beta-1a (AVONEX), peginterferon beta-1a (Plegridy), and natalizumab (Tysabri), all for the treatment of multiple sclerosis ; nusinersen (Spinraza) for the treatment of spinal muscular atrophy ; omaveloxolone (Skyclarys) for ...

RedHill Biopharma Ltd. is a specialty biopharmaceutical firm focused on developing and commercializing innovative therapeutics for gastrointestinal disorders, inflammatory conditions, and infectious diseases. It operates mainly in North American and European markets, delivering prescription treatments for unmet clinical needs and partnering with healthcare stakeholders to expand product access.

BIIB vs RDHL — Head-to-Head

Bigger by revenue
BIIB
BIIB
124.2× larger
BIIB
$2.3B
$18.3M
RDHL
Growing faster (revenue YoY)
BIIB
BIIB
+7.5% gap
BIIB
-7.1%
-14.7%
RDHL
Higher net margin
BIIB
BIIB
61.7% more per $
BIIB
-2.1%
-63.8%
RDHL

Income Statement — Q4 2025 vs Q2 2022

Metric
BIIB
BIIB
RDHL
RDHL
Revenue
$2.3B
$18.3M
Net Profit
$-48.9M
$-11.7M
Gross Margin
78.3%
51.0%
Operating Margin
-2.5%
-49.9%
Net Margin
-2.1%
-63.8%
Revenue YoY
-7.1%
-14.7%
Net Profit YoY
-118.3%
59.8%
EPS (diluted)
$-0.35
$-0.02

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
BIIB
BIIB
RDHL
RDHL
Q4 25
$2.3B
Q3 25
$2.5B
Q2 25
$2.6B
Q1 25
$2.4B
Q4 24
$2.5B
Q3 24
$2.5B
Q2 24
$2.5B
Q1 24
$2.3B
Net Profit
BIIB
BIIB
RDHL
RDHL
Q4 25
$-48.9M
Q3 25
$466.5M
Q2 25
$634.8M
Q1 25
$240.5M
Q4 24
$266.7M
Q3 24
$388.5M
Q2 24
$583.6M
Q1 24
$393.4M
Gross Margin
BIIB
BIIB
RDHL
RDHL
Q4 25
78.3%
Q3 25
73.4%
Q2 25
77.1%
Q1 25
74.1%
Q4 24
76.2%
Q3 24
74.1%
Q2 24
77.8%
Q1 24
76.3%
Operating Margin
BIIB
BIIB
RDHL
RDHL
Q4 25
-2.5%
Q3 25
22.0%
Q2 25
28.1%
Q1 25
12.8%
Q4 24
11.9%
Q3 24
18.3%
Q2 24
28.3%
Q1 24
20.3%
Net Margin
BIIB
BIIB
RDHL
RDHL
Q4 25
-2.1%
Q3 25
18.4%
Q2 25
24.0%
Q1 25
9.9%
Q4 24
10.9%
Q3 24
15.8%
Q2 24
23.7%
Q1 24
17.2%
EPS (diluted)
BIIB
BIIB
RDHL
RDHL
Q4 25
$-0.35
Q3 25
$3.17
Q2 25
$4.33
Q1 25
$1.64
Q4 24
$1.82
Q3 24
$2.66
Q2 24
$4.00
Q1 24
$2.70

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
BIIB
BIIB
RDHL
RDHL
Cash + ST InvestmentsLiquidity on hand
$27.0M
Total DebtLower is stronger
$6.3B
Stockholders' EquityBook value
$18.3B
$-11.9M
Total Assets
$29.4B
$168.0M
Debt / EquityLower = less leverage
0.34×

8-quarter trend — quarters aligned by calendar period.

Total Debt
BIIB
BIIB
RDHL
RDHL
Q4 25
$6.3B
Q3 25
$6.3B
Q2 25
$6.3B
Q1 25
$4.5B
Q4 24
$6.3B
Q3 24
$4.5B
Q2 24
$6.3B
Q1 24
$6.3B
Stockholders' Equity
BIIB
BIIB
RDHL
RDHL
Q4 25
$18.3B
Q3 25
$18.2B
Q2 25
$17.6B
Q1 25
$17.0B
Q4 24
$16.7B
Q3 24
$16.4B
Q2 24
$15.9B
Q1 24
$15.2B
Total Assets
BIIB
BIIB
RDHL
RDHL
Q4 25
$29.4B
Q3 25
$29.2B
Q2 25
$28.3B
Q1 25
$28.0B
Q4 24
$28.0B
Q3 24
$28.3B
Q2 24
$26.8B
Q1 24
$26.6B
Debt / Equity
BIIB
BIIB
RDHL
RDHL
Q4 25
0.34×
Q3 25
0.35×
Q2 25
0.36×
Q1 25
0.27×
Q4 24
0.38×
Q3 24
0.28×
Q2 24
0.40×
Q1 24
0.41×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
BIIB
BIIB
RDHL
RDHL
Operating Cash FlowLast quarter
$511.9M
$-16.6M
Free Cash FlowOCF − Capex
$468.0M
FCF MarginFCF / Revenue
20.5%
Capex IntensityCapex / Revenue
1.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$2.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
RDHL
RDHL
Q4 25
$511.9M
Q3 25
$1.3B
Q2 25
$160.9M
Q1 25
$259.3M
Q4 24
$760.9M
Q3 24
$935.6M
Q2 24
$625.8M
Q1 24
$553.2M
Free Cash Flow
BIIB
BIIB
RDHL
RDHL
Q4 25
$468.0M
Q3 25
$1.2B
Q2 25
$134.3M
Q1 25
$222.2M
Q4 24
$721.6M
Q3 24
$900.6M
Q2 24
$592.3M
Q1 24
$507.3M
FCF Margin
BIIB
BIIB
RDHL
RDHL
Q4 25
20.5%
Q3 25
48.4%
Q2 25
5.1%
Q1 25
9.1%
Q4 24
29.4%
Q3 24
36.5%
Q2 24
24.0%
Q1 24
22.1%
Capex Intensity
BIIB
BIIB
RDHL
RDHL
Q4 25
1.9%
Q3 25
1.8%
Q2 25
1.0%
Q1 25
1.5%
Q4 24
1.6%
Q3 24
1.4%
Q2 24
1.4%
Q1 24
2.0%
Cash Conversion
BIIB
BIIB
RDHL
RDHL
Q4 25
Q3 25
2.73×
Q2 25
0.25×
Q1 25
1.08×
Q4 24
2.85×
Q3 24
2.41×
Q2 24
1.07×
Q1 24
1.41×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

BIIB
BIIB

Products$1.7B73%
Tysabri Product$244.5M11%
AVONEX$119.2M5%
SKYCLARYS$88.9M4%
Alzheimers Collaboration$47.1M2%
IMRALDI$43.5M2%
TECFIDERA$36.9M2%
PLEGRIDY$24.7M1%
QALSODY$7.8M0%
BYOOVIZ$4.3M0%

RDHL
RDHL

Segment breakdown not available.

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