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
576
$1.29M
577
$1.29M
578
$1.28M
579
$1.28M
580
$1.27M
581
$1.26M
582
$1.26M
583
$1.25M
584
$1.25M
585
$1.25M
586
$1.25M
587
$1.24M
588
$1.24M
589
$1.23M
590
$1.23M
591
$1.23M
592
$1.21M
593
$1.2M
594
$1.19M
595
$1.19M
596
$1.17M
597
$1.16M
598
$1.16M
599
$1.16M
600
$1.16M