1,057 hedge funds and large institutions have $31.7B invested in Biogen in 2020 Q4 according to their latest regulatory filings, with 170 funds opening new positions, 287 increasing their positions, 431 reducing their positions, and 148 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

more funds holding

Funds holding:

15% less capital invested

Capital invested by funds: $37.1B → $31.7B (-$5.44B)

33% less repeat investments, than reductions

Existing positions increased: 287 | Existing positions reduced: 431

61% less funds holding in top 10

Funds holding in top 10: 187 (-11)

Holders
1,057
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.98B
Puts
$1.64B
Net Calls
Net Calls Change

Top Sellers

1 -$289M
2 -$256M
3 -$191M
4
State Street
State Street
Massachusetts
-$130M
5
KBC Group
KBC Group
Belgium
-$114M
Name Holding Trade Value Shares
Change
Change in
Stake
926
$49K
927
$48K
928
$48K
929
$46K
930
$45K
931
$43K
932
$40K
933
$40K
934
$39K
935
$36K
936
$36K
937
$35K
938
$34.5K
939
$34K
940
$34K
941
$34K
942
$34K
943
$33K
944
$31K
945
$31K
946
$30K
947
$30K
948
$29K
949
$29K
950
$28K