What is Biogen's operating cash flow?

Biogen (BIIB) reported operating cash flow of $645.5M in Q1 2026.

How has Biogen's operating cash flow changed year-over-year?

Biogen's operating cash flow increased by 148.9% year-over-year, from $259.3M to $645.5M.

What is the long-term trend for Biogen's operating cash flow?

Over 3 years (2021 to 2025), Biogen's operating cash flow has grown at a -15.4% compound annual growth rate (CAGR), from $3.64B to $2.2B.

What does operating cash flow mean?

Total cash generated by or used in core business operations — the single most important cash flow metric for assessing business health.

Biogen BIIB Operating Cash Flow

Operating Cash Flow at other companies

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$5.33B+220%

Rogers CorporationROG

$5.8M-50.4%

TG TherapeuticsTGTX

-$17.89M+37.7%

Acadia PharmaceuticalsACAD

$33.98M+67.2%

AnaptysBio, Inc.ANAB

-$25.92M-142%

Syndax PharmaceuticalsSNDX

-$50.35M+47.1%

Other financials

Income statement

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Revenue$2.5B+1.9%

Gross profit$1.8B+0.8%

Operating income$610.7M—

Net income$319.5M+32.8%

EPS (diluted)$2.15+31.1%

Balance sheet

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Cash & equivalents$3.4B+30.2%

Total debt$6.6B+34.7%

Total equity$18.7B+9.9%

Total assets$29.5B+5.2%

Cash flow

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CapEx$51.2M+38.0%

Free cash flow$594.3M+167%

Valuation

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Market cap$31.9B+71.6%

Enterprise value$35.08B+56.4%

P/E22.5×+10.3×

P/S3.2×+1.4×

Profitability

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Gross margin75.5%-0.1pp

Operating margin22.9%—

Net margin14.3%-0.8pp

FCF margin24.4%-0.4pp

Returns & leverage

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Return on equity8%-1.2pp

Debt / equity0.4×+0.1×

Current ratio3.1×+1.6×

Where this comes from

Reported directly by Biogen in its filing.

Tagged under the XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities.

The official record: Biogen’s 10-Q, filed April 29, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Biogen's operating cash flow?: Biogen (BIIB) reported operating cash flow of $645.5M in Q1 2026.
How has Biogen's operating cash flow changed year-over-year?: Biogen's operating cash flow increased by 148.9% year-over-year, from $259.3M to $645.5M.
What is the long-term trend for Biogen's operating cash flow?: Over 3 years (2021 to 2025), Biogen's operating cash flow has grown at a -15.4% compound annual growth rate (CAGR), from $3.64B to $2.2B.
What does operating cash flow mean?: Total cash generated by or used in core business operations — the single most important cash flow metric for assessing business health.