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.16,568,963Dec 30, 20188.42%4,985,932,345
Vanguard Group, Inc. (The)15,170,607Dec 30, 20187.71%4,565,139,058
Primecap Management Company14,716,217Dec 30, 20187.48%4,428,404,019
State Street Corporation8,781,192Dec 30, 20184.46%2,642,436,296
ClearBridge Investments, LLC8,729,845Dec 30, 20184.44%2,626,984,957
Wellington Management Company, LLP5,400,991Dec 30, 20182.75%1,625,266,211
Capital World Investors4,015,567Dec 30, 20182.04%1,208,364,421
FMR, LLC3,671,066Dec 30, 20181.87%1,104,697,180
AQR Capital Management, LLC3,156,081Dec 30, 20181.60%949,727,894
Invesco Ltd.3,126,480Dec 30, 20181.59%940,820,361

Top Mutual Fund Holders

HolderSharesDate Reported% OutValue
Vanguard/Primecap Fund9,221,680Sep 29, 20184.69%3,258,111,760
Vanguard Total Stock Market Index Fund5,126,972Sep 29, 20182.61%1,811,410,477
Vanguard 500 Index Fund3,750,801Sep 29, 20181.91%1,325,195,501
Vanguard Specialized-Health Care Fund3,695,803Oct 30, 20181.88%1,124,521,978
Legg Mason Clearbridge Aggressive Growth Fd2,422,431Dec 30, 20181.23%728,957,936
Vanguard Horizon Fund-Capital Opportunity Portfolio2,331,100Sep 29, 20181.19%823,600,941
SPDR S&P 500 ETF Trust2,248,571Feb 27, 20191.14%737,553,773
iShares NASDAQ Biotechnology ETF1,942,225Feb 27, 20190.99%637,069,222
Vanguard Institutional Index Fund-Institutional Index Fund1,921,820Sep 29, 20180.98%678,998,224
Invesco ETF Tr-Invesco QQQ Tr, Series 1 ETF1,760,465Feb 27, 20190.89%577,450,124