991 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, 390 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
991
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
501
$1.75M
502
$1.73M
503
$1.71M
504
$1.71M
505
$1.69M
506
$1.68M
507
$1.68M
508
$1.66M
509
$1.65M
510
$1.63M
511
$1.62M
512
$1.62M
513
$1.61M
514
$1.61M
515
$1.61M
516
$1.61M
517
$1.6M
518
$1.59M
519
$1.57M
520
$1.57M
521
$1.57M
522
$1.57M
523
$1.55M
524
$1.55M
525
$1.54M