Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

Biogen Inc (NASDAQ:BIIB)

Delayed Data
As of Oct 20
 -4.32 / -1.26%
Today’s Change
Today|||52-Week Range
Institutional investors hold a majority ownership of BIIB through the 91.21% of the outstanding shares that they control. This interest is also higher than at almost any other company in the Biotechnology industry. Last, during the quarter ended June 2017, these large investors purchased a net $600.6 thousand shares.
Mutual fund holders53.04%
Other institutional38.17%
Individual stakeholders1.49%

Largest Quarterly Institutional

Latest Institutional Activity

9/30/2017ASSENAGON ASSET MANAGEMENT SA (G...  Bought 394.4 Thousand shares of Biogen
9/30/2017FACTORY MUTUAL INSURANCE CO. (IN...  Bought 66.2 Thousand shares of Biogen
9/30/2017WAVERTON INVESTMENT MANAGEMENT L...  Bought 65.7 Thousand shares of Biogen

Top 10 Owners of Biogen

Total value ($)Shares
bought / sold
PRIMECAP Management Co.7.28%15,391,4014,819,355,481-86,023-0.56%
The Vanguard Group, Inc.6.81%14,403,7604,510,105,331-96,287-0.66%
BlackRock Fund Advisors5.76%12,187,1413,816,037,590+481,918+4.12%
SSgA Funds Management, Inc.4.60%9,721,3123,043,937,213+140,929+1.47%
ClearBridge Investments LLC4.40%9,293,9002,910,105,968+172,875+1.90%
T. Rowe Price Associates, Inc.4.23%8,948,7822,802,042,620+830,591+10.23%
Fidelity Management & Research Co...2.80%5,916,1721,852,471,777+616,024+11.62%
Wellington Management Co. LLP2.47%5,228,4801,637,141,658-483,875-8.47%
Northern Trust Investments, Inc.1.43%3,017,136944,725,624+223,371+8.00%
Geode Capital Management LLC1.14%2,419,526757,601,981+47,351+2.00%

Top 10 Mutual Funds Holding Biogen

Mutual fundStakeShares
Total value ($)Shares
bought / sold
Vanguard PRIMECAP Fund4.31%9,122,0972,856,311,013-45,000-0.49%
Vanguard Total Stock Market Index...2.38%5,021,5091,572,334,898+14,824+0.30%
Vanguard Health Care Fund1.79%3,784,6031,185,034,891-57,200-1.49%
Vanguard 500 Index Fund1.62%3,417,8261,070,189,677-9,938-0.29%
ClearBridge Aggressive Growth Fun...1.51%3,184,841997,237,414-16,847-0.53%
Vanguard Capital Opportunity Fund1.24%2,630,438823,642,74700.00%
iShares Nasdaq Biotechnology ETF1.24%2,629,671823,402,58400.00%
SPDR S&P 500 ETF1.12%2,370,364742,208,376-123-0.01%
Vanguard Institutional Index Fund1.07%2,251,530704,999,074-36,834-1.61%
T Rowe Price Growth Stock Fund0.99%2,100,754657,788,092+374,000+21.66%