SpiderRock Trading LLC - BIOGEN IDEC INC ownership

BIOGEN IDEC INC's ticker is and the CUSIP is 09062X10. A total of 2 filers reported holding BIOGEN IDEC INC in Q2 2014. The put-call ratio across all filers is - and the average weighting 0.4%.

Quarter-by-quarter ownership
SpiderRock Trading LLC ownership history of BIOGEN IDEC INC
ValueSharesWeighting
Q1 2014$01000.00%
Other shareholders
BIOGEN IDEC INC shareholders Q2 2014
NameSharesValueWeighting ↓
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 684,173$164,721,0001.05%
Supplemental Annuity Collective Trust of NJ 3,869$932,0000.51%
Mizuho Trust & Banking Co., Ltd. 324,187$69,765,0000.29%
State of New Jersey Common Pension Fund A 130,000$31,299,0000.15%
View complete list of BIOGEN IDEC INC shareholders