1,101 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, 470 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: 86.84%84.17% (-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: 470

Holders
1,101
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
$293K
802
$292K
803
$291K
804
$290K
805
$290K
806
$288K
807
$288K
808
$288K
809
$286K
810
$285K
811
$285K
812
$284K
813
$281K
814
$279K
815
$276K
816
$275K
817
$275K
818
$274K
819
$273K
820
$273K
821
$273K
822
$273K
823
$272K
824
$272K
825
$272K