1,097 hedge funds and large institutions have $45.8B invested in Biogen in 2020 Q1 according to their latest regulatory filings, with 112 funds opening new positions, 325 increasing their positions, 475 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

less funds holding

Funds holding:

0.8% less ownership

Funds ownership: 84.17%83.37% (-0.8%)

18% less call options, than puts

Call options by funds: $1.24B | Put options by funds: $1.51B

32% less repeat investments, than reductions

Existing positions increased: 325 | Existing positions reduced: 475

Holders
1,097
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
49
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.24B
Puts
$1.51B
Net Calls
Net Calls Change

Top Buyers

1 +$719M
2 +$246M
3 +$231M
4
O
OrbiMed
New York
+$132M
5
BlackRock
BlackRock
New York
+$122M
Name Holding Trade Value Shares
Change
Change in
Stake
701
$475K
702
$475K
703
$475K
704
$475K
705
$473K
706
$468K
707
$466K
708
$465K
709
$462K
710
$454K
711
$452K
712
$452K
713
$450K
714
$449K
715
$447K
716
$446K
717
$446K
718
$443K
719
$443K
720
$437K
721
$436K
722
$435K
723
$430K
724
$429K
725
$427K