1,100 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, 416 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 (-$8.57B)

34% less call options, than puts

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

Holders
1,100
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
526
$1.82M
527
$1.81M
528
$1.8M
529
$1.8M
530
$1.79M
531
$1.78M
532
$1.76M
533
$1.74M
534
$1.74M
535
$1.74M
536
$1.73M
537
$1.73M
538
$1.71M
539
$1.69M
540
$1.67M
541
$1.66M
542
$1.66M
543
$1.66M
544
$1.64M
545
$1.64M
546
$1.63M
547
$1.63M
548
$1.63M
549
$1.6M
550
$1.56M