Biogen Inc. (BIIB) Earnings History
Annual and quarterly earnings data from 1989 to 2025
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BIIB EPS Growth (CAGR)
Compound annual growth rate of diluted earnings per share
CAGR (Compound Annual Growth Rate) shows the annualized growth rate of EPS over the specified period. A higher CAGR indicates stronger earnings momentum.
BIIB Profitability Analysis
Margin trends over time
| Year | Gross Margin | Operating Margin | Net Margin |
|---|---|---|---|
| 2025 | 70.5% | 19.1% | 13.2% |
| 2024 | 76.1% | 25.7% | 16.9% |
| 2023 | 74.2% | 21.3% | 11.8% |
| 2022 | 77.6% | 28.4% | 29.9% |
| 2021 | 80.8% | 25.4% | 14.2% |
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Biogen Inc. (BIIB) Earnings Overview
As of May 6, 2026, Biogen Inc. (BIIB) reported trailing twelve-month net income of $1.37B, reflecting -21.1% year-over-year growth. The company earned $9.25 per diluted share over the past four quarters, with a net profit margin of 13.2%.
Looking at the long-term picture, BIIB's 5-year EPS compound annual growth rate (CAGR) stands at -18.7%, signaling declining earnings. The company achieved its highest annual net income of $5.89B in fiscal 2019.
Biogen Inc. maintains positive profitability with a gross margin of 70.5%, operating margin of 19.1%, and net margin of 13.2%. The company continues to generate positive earnings from operations. View revenue history →
Compared to peers including REGN ($4.42B net income, 31.4% margin), VRTX ($4.34B net income, 32.7% margin), BMRN ($269M net income, 10.8% margin), BIIB has room to improve margins relative to the peer group. Compare BIIB vs REGN →
BIIB Earnings vs Peers
Earnings metrics vs comparable public companies
BIIB Historical Earnings Data (1989–2025)
37 years| Fiscal Year | Net Income | YoY % | Operating Income | EPS (Diluted) | Net Margin | Op. Margin |
|---|---|---|---|---|---|---|
| 2025 | $1.29B | -20.8% | $1.88B | $8.83 | 13.2% | 19.1% |
| 2024 | $1.63B | +40.6% | $2.49B | $11.19 | 16.9% | 25.7% |
| 2023 | $1.16B | -61.9% | $2.10B | $7.97 | 11.8% | 21.3% |
| 2022 | $3.05B | +95.8% | $2.89B | $20.87 | 29.9% | 28.4% |
| 2021 | $1.56B | -61.1% | $2.79B | $10.40 | 14.2% | 25.4% |
| 2020 | $4.00B | -32.1% | $4.59B | $24.80 | 29.8% | 34.2% |
| 2019 | $5.89B | +32.9% | $7.04B | $31.42 | 41.0% | 49.0% |
| 2018 | $4.43B | +74.5% | $5.89B | $21.58 | 32.9% | 43.8% |
| 2017 | $2.54B | -31.4% | $5.35B | $11.92 | 20.7% | 43.6% |
| 2016 | $3.70B | +4.4% | $5.15B | $16.93 | 32.3% | 45.0% |
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Start ComparisonBIIB — Frequently Asked Questions
Quick answers to the most common questions about buying BIIB stock.
Is BIIB growing earnings?
BIIB EPS fell to $9.25, with earnings declining -21.1%. This contrasts with the 5-year CAGR of -18.7%. TTM net income dropped to $1.4B.
What are BIIB's profit margins?
Biogen Inc. net margin is +13.2%, with operating margin at +19.1%. Margins sit within typical range for the sector.
How consistent are BIIB's earnings?
BIIB earnings data spans 1989-2025. The declining earnings trend is -21.1% YoY. Historical data enables comparison across business cycles.