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
751
$361K
752
$358K
753
$353K
754
$353K
755
$353K
756
$351K
757
$350K
758
$346K
759
$337K
760
$334K
761
$332K
762
$332K
763
$330K
764
$327K
765
$327K
766
$327K
767
$326K
768
$326K
769
$326K
770
$320K
771
$317K
772
$317K
773
$312K
774
$312K
775
$311K