Beta: Sign in
Shares outstandingAs of 2026-07-27 · filed common shares: 147.75M
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Insider ownershipDirectors and officers, from their latest Form 3/4/5 holding: 0.08%
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Short interestShare of shares outstanding, at settlement: 3.88%
Short ratioDays to cover, as published by FINRA: 8.66
Short volume (5D)Share of FINRA reporting-facility volume sold short, daily flow: 68.30%
Short volume (20D)Share of FINRA reporting-facility volume sold short, daily flow: 60.10%
Avg volume (10D)

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Source: SEC filings. Information and analytics, not investment advice.

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Rev growth (fwd)

Avg volume (3 months)

Profitability

Gross marginTTM to Jun 26: 73.99%
Operating marginTTM to Jun 26: 12.93%
Net margin: —
EBITDA marginTTM to Jun 26: 21.33%
Return on equityNet income (TTM to Jun 26) ÷ average shareholders equity: 4.58%
Return on assetsNet income (TTM to Jun 26) ÷ average total assets: 2.76%

Growth

Revenue growth (annual YoY): 2.22%
Revenue growth (latest qtr YoY): 3.42%
Revenue growth (fwd): Sign in
Net income growth (annual YoY)FY Dec 25 vs FY Dec 24: -20.79%
Net income growth (latest qtr YoY): -84.64%
EPS growth (fwd): Sign in
Net income growth (QoQ): -69.48%

Valuation

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EPSDiluted, TTM to Jun 26: 5.63
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Financial health

Cash & equivalentsas of Jun 26: $1.28B
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Total debtBorrowings + finance and operating lease liabilities, as of Jun 26: $7.55B
Debt / equityas of Jun 26: 40.08%
Current ratioas of Jun 26: 1.87
Quick ratio(Cash + marketable securities + receivables) ÷ current liabilities, as of Dec 25: 1.54
Operating cash flowTTM to Jun 26: $2.87B
Free cash flowUnadjusted FCF = CFO − capex · TTM to Jun 26: $2.69B
TTM revenue / diluted shareDiluted, TTM to Jun 26: 67.73

BIIB stock Statistics — Biogen INC. filings, insiders & smart money · Instaport