08:36 AM EDT, 05/01/2025 (MT Newswires) -- Biogen (BIIB) reported Q1 non-GAAP earnings Thursday of $3.02 per diluted share, down from $3.67 a year earlier.

Analysts polled by FactSet expected $2.90.

Revenue for the quarter ended March 31 was $2.43 billion compared with $2.29 billion a year earlier.

Analysts surveyed by FactSet expected $2.23 billion.

The company trimmed its 2025 non-GAAP earnings guidance to $14.50 to $15.50 per diluted share from $15.25 to $16.25. Analysts surveyed by FactSet expect $15.21.