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Biogen (BIIB) Q2 2025 earnings results (second quarter 2025)

10-Q filed Jul 31, 2025

Biogen (BIIB) reported revenue of $2.6B for the second quarter 2025 (Q2 2025), +7% from a year earlier and +9% from the quarter before. Operating margin was 28.1%, net earnings $635M (24.0% of revenue).

Revenue$2.6B
Year over year+7%
Quarter over quarter+9%
Operating margin28.1%
Net earnings$635M

Biogen, Q2 2025: revenue $2.6B (+7% year over year), operating margin 28.1%, net earnings $635M, operating cash flow $161M. The chart follows the revenue to costs, profit and cash.

Q2 2025AmountQ/QY/Y
Revenue$2.6B+9%+7%
Operating profit$744M+139%+6%
Net earnings$635M+164%+9%
Operating cash flow$161M-38%-74%
Free cash flow$134M—-77%

What changed

Revenue was $2.6B in Q2 2025, up 7% year over year and up 9% from the previous quarter. Rare Disease Product Revenue was the largest line at 21% of revenue. Contract manufacturing, royalty and other revenue added $0.14B year over year (up 124%), 75% of the total change. TECFIDERA declined 23%.

Operating profit was $0.74B, a 28.1% margin (down 0.2 points year over year). Of the extra revenue versus a year earlier, 25% reached operating profit, below the 28% margin then. Total costs grew 8% against revenue growth of 7%. The fastest-growing cost line was Other operating costs (+95%). Net earnings were $0.63B, up 9% year over year. The effective tax rate was 14.7%.

Operating cash flow was $0.16B (down 74% year over year), 25% of net earnings. Non-cash charges added back $0.19B of depreciation and amortization and $0.07B of share-based compensation. Working capital and other items used $0.74B. After purchases of property, plant and equipment ($0.03B), free cash flow as the company reports it was $0.13B.

Questions

What was Biogen's revenue in the second quarter 2025?

Biogen (BIIB) reported revenue of $2.6B for the second quarter 2025 (Q2 2025), +7% from a year earlier and +9% from the quarter before.

Was Biogen profitable in the second quarter 2025?

Operating profit was $744M (28.1% of revenue) and net earnings $635M.

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Source: Biogen 10-Q on SEC EDGAR.