BIIB - Biogen Inc.

NasdaqGS - NasdaqGS Real Time Price. Currency in USD

Major Holders

Currency in USD
Breakdown
0.62%% of Shares Held by All Insider
91.48%% of Shares Held by Institutions
92.05%% of Float Held by Institutions
1,546Number of Institutions Holding Shares

Top Institutional Holders

HolderSharesDate Reported% OutValue
Blackrock Inc.15,658,641Dec 30, 20199.00%4,646,388,543
Primecap Management Company15,189,481Dec 30, 20198.73%4,507,174,697
Vanguard Group, Inc. (The)13,870,538Dec 30, 20197.97%4,115,804,740
State Street Corporation8,232,187Dec 30, 20194.73%2,442,736,848
ClearBridge Investments, LLC5,138,098Dec 30, 20192.95%1,524,627,819
Wellington Management Company, LLP4,655,756Dec 30, 20192.67%1,381,502,477
Renaissance Technologies, LLC4,569,906Dec 30, 20192.63%1,356,028,207
AQR Capital Management, LLC3,516,611Sep 29, 20192.02%818,737,373
Geode Capital Management, LLC3,302,637Dec 30, 20191.90%979,991,477
Capital World Investors3,251,471Sep 29, 20191.87%757,007,478

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
Vanguard/Primecap Fund9,216,356Sep 29, 20195.29%2,145,752,003
Vanguard Total Stock Market Index Fund5,398,405Jun 29, 20193.10%1,262,524,977
Vanguard 500 Index Fund3,815,492Jun 29, 20192.19%892,329,114
Vanguard Specialized-Health Care Fund2,718,603Jul 30, 20191.56%646,538,165
Legg Mason Clearbridge Aggressive Growth Fd2,237,557Sep 29, 20191.29%520,948,020
Vanguard Horizon Fund-Capital Opportunity Portfolio2,067,850Sep 29, 20191.19%481,436,837
SPDR S&P 500 ETF Trust2,007,069Oct 30, 20191.15%599,531,580
Vanguard Institutional Index Fund-Institutional Index Fund1,810,468Jun 29, 20191.04%423,414,151
Invesco ETF Tr-Invesco QQQ Tr, Series 1 ETF1,659,898Oct 30, 20190.95%495,828,131
Fidelity 500 Index Fund1,566,099Oct 30, 20190.90%467,809,432