Historical shareholding details of TANG CAPITAL MANAGEMENT LLC holdings in Biogen Inc (BIIB)

Monthly changes of TANG CAPITAL MANAGEMENT LLC shareholding in Biogen Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Tang Capital Management Llc	35,000	0.02%

Mar 31, 2025	Tang Capital Management Llc	35,000	0.02%

Dec 31, 2024	Tang Capital Management Llc	35,000	0.02%

Sep 30, 2024	Tang Capital Management Llc	35,000	0.02%

Jun 30, 2024	Tang Capital Management Llc	35,000	0.02%