1,101 hedge funds and large institutions have $51.4B invested in Biogen in 2018 Q1 according to their latest regulatory filings, with 94 funds opening new positions, 424 increasing their positions, 417 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less funds holding

Funds holding:

7% less funds holding in top 10

Funds holding in top 10: 2826 (-2)

14% less capital invested

Capital invested by funds: $60B → $51.4B (-$8.58B)

34% less call options, than puts

Call options by funds: $695M | Put options by funds: $1.05B

Holders
1,101
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$695M
Puts
$1.05B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
501
$2.1M
502
$2.09M
503
$2.06M
504
$2.05M
505
$2.05M
506
$2.04M
507
$2.02M
508
$2.01M
509
$2M
510
$1.99M
511
$1.98M
512
$1.98M
513
$1.94M
514
$1.92M
515
$1.92M
516
$1.9M
517
$1.9M
518
$1.9M
519
$1.89M
520
$1.86M
521
$1.86M
522
$1.85M
523
$1.84M
524
$1.83M
525
$1.82M