1,100 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 203 funds opening new positions, 272 increasing their positions, 469 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

2.67% less ownership

Funds ownership: 86.83%84.16% (-2.7%)

30% less call options, than puts

Call options by funds: $1.27B | Put options by funds: $1.82B

42% less repeat investments, than reductions

Existing positions increased: 272 | Existing positions reduced: 469

Holders
1,100
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.27B
Puts
$1.82B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
801
$292K
802
$291K
803
$290K
804
$290K
805
$288K
806
$288K
807
$288K
808
$286K
809
$285K
810
$285K
811
$284K
812
$281K
813
$279K
814
$276K
815
$275K
816
$275K
817
$274K
818
$273K
819
$273K
820
$273K
821
$273K
822
$272K
823
$272K
824
$272K
825
$271K