1,014 hedge funds and large institutions have $59B invested in Biogen in 2017 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 380 increasing their positions, 356 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

1.38% more ownership

Funds ownership: 87.77%89.15% (+1.4%)

7% more repeat investments, than reductions

Existing positions increased: 380 | Existing positions reduced: 356

22% less call options, than puts

Call options by funds: $974M | Put options by funds: $1.24B

Holders
1,014
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
38
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$974M
Puts
$1.24B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
451
$2.77M
452
$2.73M
453
$2.71M
454
$2.69M
455
$2.67M
456
$2.64M
457
$2.63M
458
$2.59M
459
$2.51M
460
$2.5M
461
$2.5M
462
$2.5M
463
$2.49M
464
$2.47M
465
$2.44M
466
$2.44M
467
$2.44M
468
$2.44M
469
$2.44M
470
$2.41M
471
$2.4M
472
$2.4M
473
$2.39M
474
$2.37M
475
$2.37M