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
551
$1.05M
552
$1.05M
553
$1.04M
554
$1.03M
555
$1.02M
556
$1.01M
557
$1M
558
$1M
559
$997K
560
$987K
561
$984K
562
$962K
563
$956K
564
$953K
565
$948K
566
$933K
567
$932K
568
$931K
569
$920K
570
$910K
571
$907K
572
$893K
573
$891K
574
$886K
575
$877K