1,057 hedge funds and large institutions have $36.2B invested in Biogen in 2020 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 338 increasing their positions, 437 reducing their positions, and 130 closing their positions.

New
Increased
Maintained
Reduced
Closed

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

26% less first-time investments, than exits

New positions opened: 96 | Existing positions closed: 130

37% less call options, than puts

Call options by funds: $894M | Put options by funds: $1.43B

57% less funds holding in top 10

Funds holding in top 10: 4921 (-28)

Holders
1,057
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
21
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$894M
Puts
$1.43B
Net Calls
Net Calls Change

Top Buyers

1 +$182M
2 +$148M
3 +$142M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$114M
5
AL
AJO LP
Pennsylvania
+$91.1M
Name Holding Trade Value Shares
Change
Change in
Stake
901
$107K
902
$105K
903
$102K
904
$100K
905
$100K
906
$99K
907
$99K
908
$98K
909
$97K
910
$94K
911
$94K
912
$91.5K
913
$91K
914
$90K
915
$81K
916
$81K
917
$81K
918
$80K
919
$79K
920
$74K
921
$72K
922
$71K
923
$70K
924
$70K
925
$69K