1,140 hedge funds and large institutions have $52.2B invested in Biogen in 2018 Q4 according to their latest regulatory filings, with 130 funds opening new positions, 374 increasing their positions, 452 reducing their positions, and 122 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:

less funds holding

Funds holding:

less ownership

Funds ownership:

17% less capital invested

Capital invested by funds: $62.8B → $52.2B (-$10.5B)

17% less repeat investments, than reductions

Existing positions increased: 374 | Existing positions reduced: 452

26% less call options, than puts

Call options by funds: $992M | Put options by funds: $1.34B

Holders
1,140
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
29
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$992M
Puts
$1.34B
Net Calls
Net Calls Change

Top Sellers

1 -$196M
2 -$177M
3 -$150M
4
Invesco
Invesco
Georgia
-$145M
5
Goldman Sachs
Goldman Sachs
New York
-$139M
Name Holding Trade Value Shares
Change
Change in
Stake
526
$1.92M
527
$1.92M
528
$1.91M
529
$1.89M
530
$1.89M
531
$1.88M
532
$1.87M
533
$1.87M
534
$1.85M
535
$1.84M
536
$1.82M
537
$1.82M
538
$1.79M
539
$1.79M
540
$1.76M
541
$1.76M
542
$1.75M
543
$1.75M
544
$1.69M
545
$1.68M
546
$1.67M
547
$1.67M
548
$1.66M
549
$1.65M
550
$1.64M