1,056 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, 337 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
1,056
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
751
$322K
752
$321K
753
$319K
754
$319K
755
$315K
756
$314K
757
$314K
758
$314K
759
$314K
760
$308K
761
$308K
762
$308K
763
$304K
764
$303K
765
$303K
766
$299K
767
$297K
768
$297K
769
$294K
770
$294K
771
$293K
772
$288K
773
$287K
774
$286K
775
$284K