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
476
$2.52M
477
$2.51M
478
$2.48M
479
$2.46M
480
$2.46M
481
$2.45M
482
$2.45M
483
$2.44M
484
$2.44M
485
$2.43M
486
$2.36M
487
$2.36M
488
$2.36M
489
$2.32M
490
$2.31M
491
$2.28M
492
$2.24M
493
$2.23M
494
$2.23M
495
$2.22M
496
$2.2M
497
$2.16M
498
$2.15M
499
$2.12M
500
$2.1M