1,010 hedge funds and large institutions have $37.6B invested in Biogen in 2019 Q2 according to their latest regulatory filings, with 84 funds opening new positions, 317 increasing their positions, 451 reducing their positions, and 142 closing their positions.

New
Increased
Maintained
Reduced
Closed

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

less call options, than puts

Call options by funds: $ | Put options by funds: $

27% less funds holding in top 10

Funds holding in top 10: 2216 (-6)

30% less repeat investments, than reductions

Existing positions increased: 317 | Existing positions reduced: 451

41% less first-time investments, than exits

New positions opened: 84 | Existing positions closed: 142

Holders
1,010
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
16
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$883M
Puts
$1.2B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
451
$1.55M
452
$1.55M
453
$1.54M
454
$1.54M
455
$1.54M
456
$1.52M
457
$1.51M
458
$1.51M
459
$1.5M
460
$1.49M
461
$1.49M
462
$1.49M
463
$1.49M
464
$1.49M
465
$1.48M
466
$1.48M
467
$1.44M
468
$1.43M
469
$1.43M
470
$1.43M
471
$1.42M
472
$1.39M
473
$1.38M
474
$1.35M
475
$1.35M