1,102 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 204 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:

2.64% less ownership

Funds ownership: 86.84%84.2% (-2.6%)

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
1,102
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
$294K
802
$293K
803
$292K
804
$291K
805
$290K
806
$290K
807
$288K
808
$288K
809
$288K
810
$286K
811
$285K
812
$285K
813
$284K
814
$281K
815
$279K
816
$276K
817
$275K
818
$275K
819
$274K
820
$273K
821
$273K
822
$273K
823
$273K
824
$272K
825
$272K