Historical shareholding details of Dr. Jane Grogan, PhD holdings in Biogen Inc (BIIB)

Monthly changes of Dr. Jane Grogan, PhD 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	Dr. Jane Grogan, Phd	1,433	0.00%

Nov 01, 2024	Dr. Jane Grogan, Phd	491	0.00%

Nov 01, 2023	Dr. Jane Grogan, Phd	0	0.00%

Oct 02, 2023	Dr. Jane Grogan, Phd	0	0.00%