BIIB - Biogen Inc.

NasdaqGS - NasdaqGS Real Time Price. Currency in USD

Major Holders

Currency in USD
Breakdown
0.47%% of Shares Held by All Insider
93.42%% of Shares Held by Institutions
93.86%% of Float Held by Institutions
1,580Number of Institutions Holding Shares

Top Institutional Holders

HolderSharesDate Reported% OutValue
Blackrock Inc.16,292,752Mar 30, 20198.40%3,851,280,717
Vanguard Group, Inc. (The)15,015,471Mar 30, 20197.74%3,549,357,034
Primecap Management Company14,586,382Mar 30, 20197.52%3,447,928,977
State Street Corporation8,754,893Mar 30, 20194.52%2,069,481,607
ClearBridge Investments, LLC8,592,357Mar 30, 20194.43%2,031,061,347
Wellington Management Company, LLP5,208,902Mar 30, 20192.69%1,231,280,254
Capital World Investors4,901,860Mar 30, 20192.53%1,158,701,666
AQR Capital Management, LLC4,219,856Mar 30, 20192.18%997,489,561
Invesco Ltd.3,232,333Mar 30, 20191.67%764,058,874
Geode Capital Management, LLC3,043,191Mar 30, 20191.57%719,349,488

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
Vanguard/Primecap Fund9,221,680Sep 29, 20184.76%3,258,111,760
Vanguard Total Stock Market Index Fund5,126,972Sep 29, 20182.64%1,811,410,477
Vanguard 500 Index Fund3,750,801Sep 29, 20181.93%1,325,195,501
Vanguard Specialized-Health Care Fund3,695,803Oct 30, 20181.91%1,124,521,978
Legg Mason Clearbridge Aggressive Growth Fd2,382,431Mar 30, 20191.23%563,159,039
Vanguard Horizon Fund-Capital Opportunity Portfolio2,331,100Sep 29, 20181.20%823,600,941
SPDR S&P 500 ETF Trust2,215,106Mar 30, 20191.14%523,606,756
iShares NASDAQ Biotechnology ETF1,933,006Mar 30, 20191.00%456,923,958
Vanguard Institutional Index Fund-Institutional Index Fund1,921,820Sep 29, 20180.99%678,998,224
Growth Fund Of America Inc1,753,000Mar 30, 20190.90%414,374,140