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
851
$245K
852
$243K
853
$243K
854
$243K
855
$240K
856
$240K
857
$239K
858
$238K
859
$237K
860
$237K
861
$237K
862
$236K
863
$236K
864
$236K
865
$236K
866
$232K
867
$232K
868
$231K
869
$231K
870
$230K
871
$226K
872
$225K
873
$224K
874
$224K
875
$223K