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
401
$2.34M
402
$2.34M
403
$2.28M
404
$2.25M
405
$2.22M
406
$2.21M
407
$2.11M
408
$2.1M
409
$2.08M
410
$2.04M
411
$2.03M
412
$2.03M
413
$2.02M
414
$2.01M
415
$2M
416
$1.99M
417
$1.97M
418
$1.96M
419
$1.96M
420
$1.96M
421
$1.95M
422
$1.95M
423
$1.91M
424
$1.91M
425
$1.9M