1,019 hedge funds and large institutions have $51.5B invested in Biogen in 2017 Q1 according to their latest regulatory filings, with 90 funds opening new positions, 390 increasing their positions, 395 reducing their positions, and 83 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

4% less capital invested

Capital invested by funds: $53.8B → $51.5B (-$2.28B)

25% less call options, than puts

Call options by funds: $808M | Put options by funds: $1.07B

34% less funds holding in top 10

Funds holding in top 10: 4127 (-14)

Holders
1,019
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
27
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$808M
Puts
$1.07B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
526
$1.67M
527
$1.66M
528
$1.66M
529
$1.65M
530
$1.65M
531
$1.64M
532
$1.64M
533
$1.63M
534
$1.6M
535
$1.6M
536
$1.58M
537
$1.56M
538
$1.56M
539
$1.55M
540
$1.55M
541
$1.52M
542
$1.52M
543
$1.52M
544
$1.51M
545
$1.49M
546
$1.48M
547
$1.47M
548
$1.47M
549
$1.46M
550
$1.45M