991 hedge funds and large institutions have $50.9B invested in Biogen in 2017 Q2 according to their latest regulatory filings, with 79 funds opening new positions, 351 increasing their positions, 390 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

less capital invested

Capital invested by funds: $ → $

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

15% less funds holding in top 10

Funds holding in top 10: 2723 (-4)

16% less call options, than puts

Call options by funds: $954M | Put options by funds: $1.14B

18% less first-time investments, than exits

New positions opened: 79 | Existing positions closed: 96

Holders
991
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
23
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$954M
Puts
$1.14B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
801
$274K
802
$272K
803
$271K
804
$271K
805
$271K
806
$271K
807
$271K
808
$270K
809
$270K
810
$269K
811
$266K
812
$263K
813
$262K
814
$262K
815
$259K
816
$259K
817
$255K
818
$255K
819
$254K
820
$252K
821
$252K
822
$251K
823
$250K
824
$249K
825
$239K