1,101 hedge funds and large institutions have $45B invested in Biogen in 2019 Q4 according to their latest regulatory filings, with 203 funds opening new positions, 272 increasing their positions, 470 reducing their positions, and 69 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

2.67% less ownership

Funds ownership: 86.84%84.17% (-2.7%)

30% less call options, than puts

Call options by funds: $1.27B | Put options by funds: $1.82B

42% less repeat investments, than reductions

Existing positions increased: 272 | Existing positions reduced: 470

Holders
1,101
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.27B
Puts
$1.82B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
501
$1.49M
502
$1.48M
503
$1.47M
504
$1.44M
505
$1.44M
506
$1.44M
507
$1.41M
508
$1.38M
509
$1.37M
510
$1.37M
511
$1.35M
512
$1.33M
513
$1.33M
514
$1.33M
515
$1.32M
516
$1.32M
517
$1.29M
518
$1.29M
519
$1.28M
520
$1.27M
521
$1.27M
522
$1.26M
523
$1.26M
524
$1.25M
525
$1.25M