1,018 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, 389 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
1,018
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
651
$775K
652
$761K
653
$761K
654
$757K
655
$756K
656
$756K
657
$751K
658
$750K
659
$743K
660
$725K
661
$703K
662
$697K
663
$697K
664
$690K
665
$684K
666
$683K
667
$672K
668
$672K
669
$670K
670
$669K
671
$660K
672
$650K
673
$648K
674
$647K
675
$639K