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
476
$1.34M
477
$1.34M
478
$1.34M
479
$1.33M
480
$1.33M
481
$1.32M
482
$1.31M
483
$1.29M
484
$1.26M
485
$1.26M
486
$1.25M
487
$1.25M
488
$1.24M
489
$1.23M
490
$1.21M
491
$1.2M
492
$1.2M
493
$1.2M
494
$1.19M
495
$1.19M
496
$1.17M
497
$1.17M
498
$1.16M
499
$1.15M
500
$1.12M