992 hedge funds and large institutions have $50.9B invested in Biogen in 2017 Q2 according to their latest regulatory filings, with 79 funds opening new positions, 351 increasing their positions, 391 reducing their positions, and 96 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

less capital invested

Capital invested by funds: $ → $

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

15% less funds holding in top 10

Funds holding in top 10: 2723 (-4)

16% less call options, than puts

Call options by funds: $954M | Put options by funds: $1.14B

18% less first-time investments, than exits

New positions opened: 79 | Existing positions closed: 96

Holders
992
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
23
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$954M
Puts
$1.14B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
601
$884K
602
$879K
603
$876K
604
$866K
605
$846K
606
$843K
607
$840K
608
$832K
609
$824K
610
$823K
611
$818K
612
$816K
613
$816K
614
$815K
615
$814K
616
$814K
617
$805K
618
$803K
619
$798K
620
$798K
621
$796K
622
$794K
623
$791K
624
$789K
625
$778K