1,058 hedge funds and large institutions have $36.3B invested in Biogen in 2020 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 339 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
1,058
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 +$204M
2 +$170M
3 +$159M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$128M
5
AL
AJO LP
Pennsylvania
+$102M
Name Holding Trade Value Shares
Change
Change in
Stake
601
$702K
602
$701K
603
$689K
604
$687K
605
$686K
606
$686K
607
$682K
608
$682K
609
$680K
610
$679K
611
$666K
612
$665K
613
$660K
614
$650K
615
$647K
616
$647K
617
$636K
618
$629K
619
$627K
620
$626K
621
$615K
622
$613K
623
$612K
624
$602K
625
$602K