1,050 hedge funds and large institutions have $37.2B invested in Biogen in 2020 Q3 according to their latest regulatory filings, with 96 funds opening new positions, 309 increasing their positions, 434 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: 434

Holders
1,050
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
$367K
702
$367K
703
$366K
704
$366K
705
$366K
706
$365K
707
$362K
708
$359K
709
$356K
710
$354K
711
$353K
712
$352K
713
$349K
714
$349K
715
$348K
716
$348K
717
$348K
718
$347K
719
$346K
720
$346K
721
$346K
722
$345K
723
$345K
724
$345K
725
$343K