Historical shareholding details of Mr. Christopher A. Viehbacher holdings in Biogen Inc (BIIB)

Monthly changes of Mr. Christopher A. Viehbacher shareholding in Biogen Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Feb 07, 2025	Mr. Christopher A. Viehbacher	12,807	0.01%

Nov 14, 2022	Mr. Christopher A. Viehbacher	7,000	0.00%