BIIB - Biogen Inc.

NasdaqGS - NasdaqGS Real-time price. Currency in USD
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
0.69%% of shares held by all insiders
89.90%% of shares held by institutions
90.52%% of float held by institutions
1,479Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
Primecap Management Company16,001,16630 Mar 202311.05%4,796,989,691
Blackrock Inc.13,986,22130 Mar 20239.66%4,192,929,313
Vanguard Group, Inc. (The)12,157,24430 Mar 20238.40%3,644,620,282
State Street Corporation6,757,00030 Mar 20234.67%2,025,681,087
Wellington Management Group, LLP5,452,88830 Mar 20233.77%1,634,721,340
JP Morgan Chase & Company4,108,86330 Mar 20232.84%1,231,796,073
Geode Capital Management, LLC3,102,73530 Mar 20232.14%930,168,952
Price (T.Rowe) Associates Inc2,088,35630 Mar 20231.44%626,068,263
ClearBridge Investments, LLC1,864,74530 Mar 20231.29%559,031,919
FMR, LLC1,752,61430 Mar 20231.21%525,416,166

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard/Primecap Fund8,917,16130 Dec 20226.17%2,673,275,772
Vanguard Specialized-Health Care Fund4,887,20330 Jan 20233.38%1,465,134,629
Vanguard Total Stock Market Index Fund4,375,25230 Dec 20223.03%1,311,656,834
Vanguard 500 Index Fund3,328,92230 Dec 20222.30%997,977,554
Vanguard Horizon Fund-Capital Opportunity Fund2,069,27730 Dec 20221.43%620,348,569
Invesco ETF Tr-Invesco QQQ Tr, Series 1 ETF1,899,77430 Mar 20231.31%569,533,263
Fidelity 500 Index Fund1,578,61927 Feb 20231.09%473,254,203
SPDR S&P 500 ETF Trust1,561,16330 Mar 20231.08%468,021,069
iShares Core S&P 500 ETF1,285,24127 Feb 20230.89%385,302,410
Vanguard Index-Value Index Fund1,245,09330 Dec 20220.86%373,266,441