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
851
$243K
852
$241K
853
$238K
854
$238K
855
$238K
856
$235K
857
$235K
858
$233K
859
$233K
860
$231K
861
$231K
862
$229K
863
$229K
864
$227K
865
$224K
866
$224K
867
$224K
868
$223K
869
$223K
870
$220K
871
$219K
872
$219K
873
$219K
874
$219K
875
$217K