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
676
$685K
677
$679K
678
$678K
679
$674K
680
$673K
681
$671K
682
$668K
683
$666K
684
$666K
685
$664K
686
$660K
687
$657K
688
$648K
689
$643K
690
$642K
691
$642K
692
$637K
693
$634K
694
$632K
695
$620K
696
$616K
697
$613K
698
$609K
699
$605K
700
$603K