Biogen Idec Inc (NASDAQ:BIIB)

Data as of Jan 30
 +35.91 / +10.17%
Today’s Change
Today|||52-Week Range
Institutional investors hold a majority ownership of BIIB through the 93.33% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Biotechnology industry.
Mutual fund holders55.98%
Other institutional37.14%
Individual stakeholders1.12%

Largest Quarterly Institutional

Latest Institutional Activity

12/31/2014AMERICAN CENTURY INVESTMENT MANA...  Bought 193.4 Thousand shares of Biogen
12/31/2014TEKLA CAPITAL MANAGEMENT LLC  Bought 140.5 Thousand shares of Biogen
12/31/2014OLD MUTUAL GLOBAL INVESTORS (UK)...  Bought 82.2 Thousand shares of Biogen

Top 10 Owners of Biogen

Total value ($)Shares
bought / sold
Fidelity Management & Research Co...8.02%18,931,4146,426,268,482-2,135,525-10.14%
PRIMECAP Management Co.7.29%17,216,6315,844,185,393-41,680-0.24%
T. Rowe Price Associates, Inc.5.42%12,791,0524,341,922,601+596,411+4.89%
The Vanguard Group, Inc.5.22%12,335,2344,187,195,181+248,937+2.06%
BlackRock Fund Advisors4.30%10,145,0883,443,750,122+110,490+1.10%
SSgA Funds Management, Inc.4.18%9,865,3723,348,800,525+224,155+2.32%
ClearBridge Investments LLC3.34%7,889,7632,678,180,050-4,111-0.05%
Jennison Associates LLC2.46%5,807,6851,971,418,673-473,199-7.53%
Capital Research & Management Co....2.31%5,456,6001,852,242,870-2,741,950-33.44%
JPMorgan Investment Management, I...2.15%5,065,4481,719,466,324-15,855-0.31%

Top 10 Mutual Funds Holding Biogen

Mutual fundStakeShares
Total value ($)Shares
bought / sold
Vanguard PRIMECAP Fund4.22%9,973,6953,385,570,76800.00%
Fidelity Contrafund3.52%8,304,2492,818,877,323-104,292-1.24%
Vanguard Total Stock Market Index...1.69%3,978,9891,350,667,816+43,958+1.12%
ClearBridge Aggressive Growth Fun...1.39%3,292,3041,117,572,59300.00%
T Rowe Price Growth Stock Fund1.18%2,781,300944,112,285+61,300+2.25%
SPDR S&P 500 ETF1.18%2,775,640942,190,998+227,438+8.93%
Vanguard Capital Opportunity Fund1.17%2,765,438938,727,92900.00%
Vanguard 500 Index Fund1.07%2,523,537856,614,635+31,799+1.28%
Vanguard Institutional Index Fund1.02%2,415,263819,861,025+19,263+0.80%
T Rowe Price Blue Chip Growth Fun...0.86%2,021,200686,096,340+211,000+11.66%

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