1,013 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, 355 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: 87.76%89.14% (+1.4%)

7% more repeat investments, than reductions

Existing positions increased: 380 | Existing positions reduced: 355

22% less call options, than puts

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

Holders
1,013
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
326
$7.35M
327
$7.29M
328
$7.11M
329
$7.07M
330
$7.04M
331
$7.04M
332
$6.98M
333
$6.97M
334
$6.91M
335
$6.89M
336
$6.86M
337
$6.81M
338
$6.8M
339
$6.8M
340
$6.77M
341
$6.76M
342
$6.76M
343
$6.73M
344
$6.41M
345
$6.39M
346
$6.38M
347
$6.37M
348
$6.27M
349
$6.26M
350
$6.24M