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
401
$3.86M
402
$3.72M
403
$3.72M
404
$3.7M
405
$3.69M
406
$3.69M
407
$3.66M
408
$3.61M
409
$3.52M
410
$3.51M
411
$3.46M
412
$3.44M
413
$3.41M
414
$3.4M
415
$3.34M
416
$3.24M
417
$3.17M
418
$3.17M
419
$3.16M
420
$3.15M
421
$3.15M
422
$3.12M
423
$3.12M
424
$3.1M
425
$3.09M