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
476
$2.29M
477
$2.27M
478
$2.26M
479
$2.25M
480
$2.23M
481
$2.23M
482
$2.22M
483
$2.18M
484
$2.15M
485
$2.15M
486
$2.13M
487
$2.12M
488
$2.12M
489
$2.1M
490
$2.1M
491
$2.09M
492
$2.08M
493
$2.07M
494
$2.05M
495
$2.03M
496
$2.02M
497
$2.02M
498
$1.97M
499
$1.95M
500
$1.93M