1,048 hedge funds and large institutions have $37.1B invested in Biogen in 2020 Q3 according to their latest regulatory filings, with 96 funds opening new positions, 309 increasing their positions, 433 reducing their positions, and 93 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

less ownership

Funds ownership:

less funds holding

Funds holding:

7% less call options, than puts

Call options by funds: $1.42B | Put options by funds: $1.53B

14% less funds holding in top 10

Funds holding in top 10: 2118 (-3)

29% less repeat investments, than reductions

Existing positions increased: 309 | Existing positions reduced: 433

Holders
1,048
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
18
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.42B
Puts
$1.53B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
701
$366K
702
$366K
703
$366K
704
$365K
705
$362K
706
$359K
707
$356K
708
$354K
709
$353K
710
$352K
711
$349K
712
$349K
713
$348K
714
$348K
715
$348K
716
$347K
717
$346K
718
$346K
719
$346K
720
$345K
721
$345K
722
$345K
723
$343K
724
$343K
725
$342K