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Side-by-side financial comparison of Biogen (BIIB) and Rivian Automotive, Inc. (RIVN). Click either name above to swap in a different company.

Biogen is the larger business by last-quarter revenue ($2.5B vs $1.3B, roughly 1.9× Rivian Automotive, Inc.). Biogen runs the higher net margin — 12.9% vs -63.1%, a 76.0% gap on every dollar of revenue. On growth, Biogen posted the faster year-over-year revenue change (2.0% vs -25.8%). Biogen produced more free cash flow last quarter ($594.3M vs $-1.1B). Over the past eight quarters, Rivian Automotive, Inc.'s revenue compounded faster (3.3% CAGR vs 0.3%).

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 ...

Rivian Automotive, Inc., is an American electric vehicle manufacturer and automotive technology company founded in 2009. It produces an electric sport utility vehicle (SUV), a pickup truck on a "skateboard" platform that can support future vehicles or be adopted by other companies, and an electric delivery van, the Rivian EDV. It started deliveries of its R1T pickup truck in late 2021. The company planned to build an exclusive charging network in the United States and Canada by the end of 2023.

BIIB vs RIVN — Head-to-Head

Bigger by revenue
BIIB
BIIB
1.9× larger
BIIB
$2.5B
$1.3B
RIVN
Growing faster (revenue YoY)
BIIB
BIIB
+27.8% gap
BIIB
2.0%
-25.8%
RIVN
Higher net margin
BIIB
BIIB
76.0% more per $
BIIB
12.9%
-63.1%
RIVN
More free cash flow
BIIB
BIIB
$1.7B more FCF
BIIB
$594.3M
$-1.1B
RIVN
Faster 2-yr revenue CAGR
RIVN
RIVN
Annualised
RIVN
3.3%
0.3%
BIIB

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
BIIB
BIIB
RIVN
RIVN
Revenue
$2.5B
$1.3B
Net Profit
$319.5M
$-811.0M
Gross Margin
9.3%
Operating Margin
-64.8%
Net Margin
12.9%
-63.1%
Revenue YoY
2.0%
-25.8%
Net Profit YoY
32.8%
-9.0%
EPS (diluted)
$2.15
$-0.66

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
RIVN
RIVN
Q1 26
$2.5B
Q4 25
$2.3B
$1.3B
Q3 25
$2.5B
$1.6B
Q2 25
$2.6B
$1.3B
Q1 25
$2.4B
$1.2B
Q4 24
$2.5B
$1.7B
Q3 24
$2.5B
$874.0M
Q2 24
$2.5B
$1.2B
Net Profit
BIIB
BIIB
RIVN
RIVN
Q1 26
$319.5M
Q4 25
$-48.9M
$-811.0M
Q3 25
$466.5M
$-1.2B
Q2 25
$634.8M
$-1.1B
Q1 25
$240.5M
$-545.0M
Q4 24
$266.7M
$-744.0M
Q3 24
$388.5M
$-1.1B
Q2 24
$583.6M
$-1.5B
Gross Margin
BIIB
BIIB
RIVN
RIVN
Q1 26
Q4 25
78.3%
9.3%
Q3 25
73.4%
1.5%
Q2 25
77.1%
-15.8%
Q1 25
74.1%
16.6%
Q4 24
76.2%
9.8%
Q3 24
74.1%
-44.9%
Q2 24
77.8%
-38.9%
Operating Margin
BIIB
BIIB
RIVN
RIVN
Q1 26
Q4 25
-2.5%
-64.8%
Q3 25
22.0%
-63.1%
Q2 25
28.1%
-85.5%
Q1 25
12.8%
-52.8%
Q4 24
11.9%
-38.1%
Q3 24
18.3%
-133.8%
Q2 24
28.3%
-118.7%
Net Margin
BIIB
BIIB
RIVN
RIVN
Q1 26
12.9%
Q4 25
-2.1%
-63.1%
Q3 25
18.4%
-75.3%
Q2 25
24.0%
-85.7%
Q1 25
9.9%
-44.0%
Q4 24
10.9%
-42.9%
Q3 24
15.8%
-125.9%
Q2 24
23.7%
-125.8%
EPS (diluted)
BIIB
BIIB
RIVN
RIVN
Q1 26
$2.15
Q4 25
$-0.35
$-0.66
Q3 25
$3.17
$-0.96
Q2 25
$4.33
$-0.97
Q1 25
$1.64
$-0.48
Q4 24
$1.82
$-0.67
Q3 24
$2.66
$-1.08
Q2 24
$4.00
$-1.46

Balance Sheet & Financial Strength

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

Metric
BIIB
BIIB
RIVN
RIVN
Cash + ST InvestmentsLiquidity on hand
$3.4B
$6.1B
Total DebtLower is stronger
Stockholders' EquityBook value
$18.7B
$4.6B
Total Assets
$29.5B
$14.9B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
BIIB
BIIB
RIVN
RIVN
Q1 26
$3.4B
Q4 25
$6.1B
Q3 25
$7.1B
Q2 25
$7.5B
Q1 25
$7.2B
Q4 24
$7.7B
Q3 24
$6.7B
Q2 24
$7.9B
Total Debt
BIIB
BIIB
RIVN
RIVN
Q1 26
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
$5.5B
Stockholders' Equity
BIIB
BIIB
RIVN
RIVN
Q1 26
$18.7B
Q4 25
$18.3B
$4.6B
Q3 25
$18.2B
$5.1B
Q2 25
$17.6B
$6.1B
Q1 25
$17.0B
$6.2B
Q4 24
$16.7B
$6.6B
Q3 24
$16.4B
$5.9B
Q2 24
$15.9B
$6.8B
Total Assets
BIIB
BIIB
RIVN
RIVN
Q1 26
$29.5B
Q4 25
$29.4B
$14.9B
Q3 25
$29.2B
$15.2B
Q2 25
$28.3B
$15.6B
Q1 25
$28.0B
$15.5B
Q4 24
$28.0B
$15.4B
Q3 24
$28.3B
$14.3B
Q2 24
$26.8B
$15.4B
Debt / Equity
BIIB
BIIB
RIVN
RIVN
Q1 26
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×
0.81×

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
RIVN
RIVN
Operating Cash FlowLast quarter
$-681.0M
Free Cash FlowOCF − Capex
$594.3M
$-1.1B
FCF MarginFCF / Revenue
24.0%
-89.0%
Capex IntensityCapex / Revenue
36.0%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$2.4B
$-2.5B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
BIIB
BIIB
RIVN
RIVN
Q1 26
Q4 25
$511.9M
$-681.0M
Q3 25
$1.3B
$26.0M
Q2 25
$160.9M
$64.0M
Q1 25
$259.3M
$-188.0M
Q4 24
$760.9M
$1.2B
Q3 24
$935.6M
$-876.0M
Q2 24
$625.8M
$-754.0M
Free Cash Flow
BIIB
BIIB
RIVN
RIVN
Q1 26
$594.3M
Q4 25
$468.0M
$-1.1B
Q3 25
$1.2B
$-421.0M
Q2 25
$134.3M
$-398.0M
Q1 25
$222.2M
$-526.0M
Q4 24
$721.6M
$856.0M
Q3 24
$900.6M
$-1.2B
Q2 24
$592.3M
$-1.0B
FCF Margin
BIIB
BIIB
RIVN
RIVN
Q1 26
24.0%
Q4 25
20.5%
-89.0%
Q3 25
48.4%
-27.0%
Q2 25
5.1%
-30.5%
Q1 25
9.1%
-42.4%
Q4 24
29.4%
49.4%
Q3 24
36.5%
-131.9%
Q2 24
24.0%
-89.6%
Capex Intensity
BIIB
BIIB
RIVN
RIVN
Q1 26
Q4 25
1.9%
36.0%
Q3 25
1.8%
28.7%
Q2 25
1.0%
35.5%
Q1 25
1.5%
27.3%
Q4 24
1.6%
18.9%
Q3 24
1.4%
31.7%
Q2 24
1.4%
24.4%
Cash Conversion
BIIB
BIIB
RIVN
RIVN
Q1 26
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×

Financial Flow Comparison

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

Revenue Breakdown by Segment

BIIB
BIIB

Product revenue, net$1.8B71%
Royalty revenue on sales of OCREVUS$317.2M13%
Contract manufacturing, royalty and other revenue$246.9M10%
Biogen's share of pre-tax profits in the U.S. for RITUXAN, GAZYVA and LUNSUMIO$94.7M4%
Alzheimer's collaboration Revenue$59.5M2%
Other revenue from anti-CD20 therapeutic programs$7.2M0%

RIVN
RIVN

Automotive Segment$839.0M65%
Software And Services Segment$447.0M35%
Regulatory Credits$30.0M2%

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