1,014 hedge funds and large institutions have $59B invested in Biogen in 2017 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 380 increasing their positions, 356 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

1.38% more ownership

Funds ownership: 87.77%89.15% (+1.4%)

7% more repeat investments, than reductions

Existing positions increased: 380 | Existing positions reduced: 356

22% less call options, than puts

Call options by funds: $974M | Put options by funds: $1.24B

Holders
1,014
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
38
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$974M
Puts
$1.24B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
551
$1.45M
552
$1.44M
553
$1.44M
554
$1.43M
555
$1.42M
556
$1.42M
557
$1.41M
558
$1.4M
559
$1.4M
560
$1.4M
561
$1.38M
562
$1.37M
563
$1.35M
564
$1.34M
565
$1.33M
566
$1.32M
567
$1.32M
568
$1.3M
569
$1.29M
570
$1.28M
571
$1.28M
572
$1.26M
573
$1.25M
574
$1.25M
575
$1.25M