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
426
$3.08M
427
$3.05M
428
$3.03M
429
$3M
430
$2.98M
431
$2.97M
432
$2.94M
433
$2.87M
434
$2.85M
435
$2.85M
436
$2.81M
437
$2.77M
438
$2.77M
439
$2.75M
440
$2.71M
441
$2.71M
442
$2.66M
443
$2.64M
444
$2.64M
445
$2.62M
446
$2.62M
447
$2.6M
448
$2.59M
449
$2.59M
450
$2.54M