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Biogen Idec shares owned by Diadema Partners

Quarter-by-quarter ownership of Biogen Idec (BIIB) shares owned by Diadema Partners from 13F filings

Historical chart of Diadema Partners investment in Biogen Idec

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All positions including Biogen Idec held by Diadema Partners consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Biogen Idec by Diadema Partners

Quarter filed Position value Share count Share price at filing
2026-06-30 $13M 60k 216.06

More positions owned by Diadema Partners

Abivax Sa Sponsored Ads Call Option (ABVX)
Viking Therapeutics (VKTX)
Bristol Myers Squibb Put Option (BMY)
Amgen Call Option (AMGN)
United Therapeutics Corporation (UTHR)
Revolution Medicines (RVMD)
Uniqure Nv SHS Put Option (QURE)
Novartis Sponsored Adr Call Option (NVS)
Kodiak Sciences Call Option (KOD)
Capricor Therapeutics Com New Put Option (CAPR)
Cogent Biosciences (COGT)
Bridgebio Pharma Note 1.750% 3/0 (Principal)
Corcept Therapeutics Incorporated Call Option (CORT)
BioMarin Pharmaceutical (BMRN)
Kymera Therapeutics Call Option (KYMR)

View all positions for Diadema Partners

Top funds holding Biogen Idec

FMR
BlackRock
PRIMECAP Management Company
Vanguard Capital Management
State Street Corporation
Vanguard Portfolio Management
Geode Capital Management
Wellington Management Company
Norges Bank Investment Management
Morgan Stanley
AQR Capital Management
Jpmorgan Chase & Co
Invesco
Susquehanna International
UBS Group

View all funds holding Biogen Idec