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
376
$4.91M
377
$4.87M
378
$4.87M
379
$4.86M
380
$4.85M
381
$4.85M
382
$4.81M
383
$4.74M
384
$4.72M
385
$4.71M
386
$4.7M
387
$4.7M
388
$4.7M
389
$4.65M
390
$4.57M
391
$4.54M
392
$4.53M
393
$4.46M
394
$4.44M
395
$4.39M
396
$4.39M
397
$4.32M
398
$4.31M
399
$4.3M
400
$4.28M