Guggenheim downgrades Biogen to neutral from buy after U.S. proposes limiting access to Alzheimer's drugMarket Watch • 01/13/22
Biogen (BIIB) Down on Medicare Draft Ruling for Alzheimer's DrugsZacks Investment Research • 01/12/22
Biogen's stock tumbles after the U.S. proposes restricting access to its Alzheimer's disease drugMarket Watch • 01/12/22
Biogen sinks 10% after Medicare limits coverage of new Alzheimer's drug AduhelmBusiness Insider • 01/12/22
Medicare proposes limiting coverage of controversial Alzheimer's drug to people involved in clinical trialsBusiness Insider • 01/11/22
Biogen stock falls more than 6% after Medicare plans coverage limits for pricy Alzheimer's drugMarket Watch • 01/11/22
Medicare told to reassess premium hike after price slashed on Biogen Alzheimer's drugFox Business • 01/10/22
Biogen Inc. (BIIB) CEO Michel Vounatsos on JPMorgan 40th Annual Healthcare Conference (Transcript)Seeking Alpha • 01/10/22
Biogen Exercises Option with Ionis to Develop and Commercialize Investigational ASO for SMAPRNewsWire • 01/04/22