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Side-by-side financial comparison of Alpha Cognition Inc. (ACOG) and Biogen (BIIB). Click either name above to swap in a different company.

Biogen is the larger business by last-quarter revenue ($2.3B vs $2.8M, roughly 816.1× Alpha Cognition Inc.). Biogen runs the higher net margin — -2.1% vs -245.5%, a 243.3% gap on every dollar of revenue. Biogen produced more free cash flow last quarter ($468.0M vs $-7.1M).

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 ...

ACOG vs BIIB — Head-to-Head

Bigger by revenue
BIIB
BIIB
816.1× larger
BIIB
$2.3B
$2.8M
ACOG
Higher net margin
BIIB
BIIB
243.3% more per $
BIIB
-2.1%
-245.5%
ACOG
More free cash flow
BIIB
BIIB
$475.1M more FCF
BIIB
$468.0M
$-7.1M
ACOG

Income Statement — Q4 2025 vs Q4 2025

Metric
ACOG
ACOG
BIIB
BIIB
Revenue
$2.8M
$2.3B
Net Profit
$-6.9M
$-48.9M
Gross Margin
78.3%
Operating Margin
-283.7%
-2.5%
Net Margin
-245.5%
-2.1%
Revenue YoY
-7.1%
Net Profit YoY
-118.3%
EPS (diluted)
$-0.10
$-0.35

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
ACOG
ACOG
BIIB
BIIB
Q4 25
$2.8M
$2.3B
Q3 25
$2.8M
$2.5B
Q2 25
$1.7M
$2.6B
Q1 25
$2.9M
$2.4B
Q4 24
$2.5B
Q3 24
$2.5B
Q2 24
$2.5B
Q1 24
$2.3B
Net Profit
ACOG
ACOG
BIIB
BIIB
Q4 25
$-6.9M
$-48.9M
Q3 25
$-1.3M
$466.5M
Q2 25
$-10.5M
$634.8M
Q1 25
$-2.0M
$240.5M
Q4 24
$266.7M
Q3 24
$388.5M
Q2 24
$583.6M
Q1 24
$393.4M
Gross Margin
ACOG
ACOG
BIIB
BIIB
Q4 25
78.3%
Q3 25
73.4%
Q2 25
96.7%
77.1%
Q1 25
99.6%
74.1%
Q4 24
76.2%
Q3 24
74.1%
Q2 24
77.8%
Q1 24
76.3%
Operating Margin
ACOG
ACOG
BIIB
BIIB
Q4 25
-283.7%
-2.5%
Q3 25
-187.0%
22.0%
Q2 25
-346.1%
28.1%
Q1 25
-125.9%
12.8%
Q4 24
11.9%
Q3 24
18.3%
Q2 24
28.3%
Q1 24
20.3%
Net Margin
ACOG
ACOG
BIIB
BIIB
Q4 25
-245.5%
-2.1%
Q3 25
-46.4%
18.4%
Q2 25
-632.7%
24.0%
Q1 25
-68.5%
9.9%
Q4 24
10.9%
Q3 24
15.8%
Q2 24
23.7%
Q1 24
17.2%
EPS (diluted)
ACOG
ACOG
BIIB
BIIB
Q4 25
$-0.10
$-0.35
Q3 25
$-0.30
$3.17
Q2 25
$-0.65
$4.33
Q1 25
$-0.13
$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
ACOG
ACOG
BIIB
BIIB
Cash + ST InvestmentsLiquidity on hand
$66.0M
Total DebtLower is stronger
$6.3B
Stockholders' EquityBook value
$62.5M
$18.3B
Total Assets
$79.7M
$29.4B
Debt / EquityLower = less leverage
0.34×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACOG
ACOG
BIIB
BIIB
Q4 25
$66.0M
Q3 25
$35.4M
Q2 25
$39.4M
Q1 25
$45.5M
Q4 24
Q3 24
Q2 24
Q1 24
Total Debt
ACOG
ACOG
BIIB
BIIB
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
ACOG
ACOG
BIIB
BIIB
Q4 25
$62.5M
$18.3B
Q3 25
$33.9M
$18.2B
Q2 25
$31.9M
$17.6B
Q1 25
$40.8M
$17.0B
Q4 24
$16.7B
Q3 24
$16.4B
Q2 24
$15.9B
Q1 24
$15.2B
Total Assets
ACOG
ACOG
BIIB
BIIB
Q4 25
$79.7M
$29.4B
Q3 25
$46.3M
$29.2B
Q2 25
$45.1M
$28.3B
Q1 25
$48.6M
$28.0B
Q4 24
$28.0B
Q3 24
$28.3B
Q2 24
$26.8B
Q1 24
$26.6B
Debt / Equity
ACOG
ACOG
BIIB
BIIB
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
ACOG
ACOG
BIIB
BIIB
Operating Cash FlowLast quarter
$-6.9M
$511.9M
Free Cash FlowOCF − Capex
$-7.1M
$468.0M
FCF MarginFCF / Revenue
-252.6%
20.5%
Capex IntensityCapex / Revenue
5.3%
1.9%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-20.7M
$2.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ACOG
ACOG
BIIB
BIIB
Q4 25
$-6.9M
$511.9M
Q3 25
$-5.3M
$1.3B
Q2 25
$-6.1M
$160.9M
Q1 25
$-2.0M
$259.3M
Q4 24
$760.9M
Q3 24
$935.6M
Q2 24
$625.8M
Q1 24
$553.2M
Free Cash Flow
ACOG
ACOG
BIIB
BIIB
Q4 25
$-7.1M
$468.0M
Q3 25
$-5.4M
$1.2B
Q2 25
$-6.1M
$134.3M
Q1 25
$-2.1M
$222.2M
Q4 24
$721.6M
Q3 24
$900.6M
Q2 24
$592.3M
Q1 24
$507.3M
FCF Margin
ACOG
ACOG
BIIB
BIIB
Q4 25
-252.6%
20.5%
Q3 25
-188.8%
48.4%
Q2 25
-370.9%
5.1%
Q1 25
-72.0%
9.1%
Q4 24
29.4%
Q3 24
36.5%
Q2 24
24.0%
Q1 24
22.1%
Capex Intensity
ACOG
ACOG
BIIB
BIIB
Q4 25
5.3%
1.9%
Q3 25
2.6%
1.8%
Q2 25
0.5%
1.0%
Q1 25
2.2%
1.5%
Q4 24
1.6%
Q3 24
1.4%
Q2 24
1.4%
Q1 24
2.0%
Cash Conversion
ACOG
ACOG
BIIB
BIIB
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

ACOG
ACOG

Segment breakdown not available.

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%

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