Biogen Inc.

BIIB
Financial Analysis · Updated May 13, 2026 · Coverage 2026-Q2
Latest Q Revenue
$2.5B
Q1 2026 · +2% YoY
TTM ROIC
9.1%
FY2025 · NOPAT / Invested Capital (includes intangibles); NOPAT = Non-GAAP Operating Income after ~25% tax rate · WACC ~6.9% · Moat spread +2.2pp

Financial Snapshot


ticker: BIIB step: 04 generated: 2026-05-12 source: quick-research

Biogen Inc. (BIIB) — Financial Snapshot

Income Statement Summary

Metric FY2022 FY2023 FY2024 YoY
Revenue ~$10.2B $9.84B $9.68B -1.6%
Gross Margin ~83% ~82% ~82% flat
Operating Margin (non-GAAP) ~34% ~30% ~30% flat
Net Income (GAAP) ~$2.6B ~$1.0B ~$1.4B +40%
Non-GAAP EPS ~$19.00 $14.72 $16.47 +12%
GAAP EPS $20.87 $7.97 $11.18 +40%

FY2025: Revenue ~$9.9B (+2%); non-GAAP EPS growth continuing. GAAP volatility reflects one-time charges (Reata acquisition amortization, restructuring costs). Non-GAAP EPS is the most relevant operational metric. GAAP FY2023 decline reflects $6.5B+ in Reata acquisition-related charges.

Cash Flow & Balance Sheet (FY2024)

Metric Value
Operating Cash Flow ~$3.0B
Free Cash Flow ~$2.7B
FCF Margin ~28%
Cash & Equivalents ~$1.5B
Total Debt ~$8.5B
Net Debt ~$7.0B
Shares Outstanding ~130M

FCF yield of ~11–16% at current market cap is exceptionally high for a large-cap biotech, reflecting the market's skepticism about Leqembi's commercial trajectory.

Key Ratios (approximate, FY2024)

  • P/E (non-GAAP): ~10–13x | FCF Yield: ~11–16%
  • EV/EBITDA: ~8–10x | Dividend: None
  • Revenue Growth (FY2024): -1.6% | FCF Margin: ~28%
  • Ocrevus Royalty (~$700–800M/year): High-margin, declining as new CD20 competitors emerge

Growth Profile

Biogen's financials are a study in transition: the MS franchise that drove $10B+ in peak revenue is declining at 10–15% annually, partially offset by growing new product revenues. The four launch products (Leqembi, Skyclarys, Zurzuvae, Qalsody) grew 67% YoY in FY2024 — but from a small base. Leqembi global in-market sales reached $134M in Q4 2025 — growing 54% YoY. Annualizing Q4 2025 implies ~$500-600M in run-rate Leqembi sales entering 2026. If the subcutaneous autoinjector is approved (FDA priority review), home administration could dramatically expand the eligible patient population.

Forward Estimates

  • FY2025/FY2026: Revenue stabilization ~$9.5–$10.0B as Leqembi ramps; non-GAAP EPS ~$16–18
  • Leqembi peak potential: Analyst estimates range from $2–10B in annual global sales; Jefferies is a notable bull citing home injection expansion; bears point to APOE4 subgroup limitations
  • Cost discipline: $800M net savings program reduces operating expenses; improving margins despite revenue headwinds
  • Reata amortization: Ongoing drag on GAAP EPS ($6.5B acquisition amortized over product life); non-GAAP excludes this

Deeper Financial Analysis

The fundamental tier adds 9 additional research dimensions for $BIIB.

Revenue Breakdown
Segment revenue, geographic mix, product-line contribution margins, and cohort dynamics.
Financial Trends
Quarter-over-quarter momentum, leading indicators, and inflection point analysis.
Balance Sheet
Debt structure, liquidity runway, dilution risk, and working capital dynamics.
Capital Allocation
Buyback cadence, M&A appetite, dividend policy, and reinvestment priorities.
Returns on Capital (ROIC)
Multi-year ROIC vs. WACC, marginal returns on reinvestment, sales-to-invested-capital efficiency, and moat spread.
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