1,010 hedge funds and large institutions have $37.6B invested in Biogen in 2019 Q2 according to their latest regulatory filings, with 84 funds opening new positions, 317 increasing their positions, 451 reducing their positions, and 142 closing their positions.

New
Increased
Maintained
Reduced
Closed

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

less call options, than puts

Call options by funds: $ | Put options by funds: $

27% less funds holding in top 10

Funds holding in top 10: 2216 (-6)

30% less repeat investments, than reductions

Existing positions increased: 317 | Existing positions reduced: 451

41% less first-time investments, than exits

New positions opened: 84 | Existing positions closed: 142

Holders
1,010
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
16
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$883M
Puts
$1.2B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
351
$3.23M
352
$3.17M
353
$3.16M
354
$3.14M
355
$3.12M
356
$3.1M
357
$3.07M
358
$3.03M
359
$2.98M
360
$2.97M
361
$2.97M
362
$2.97M
363
$2.95M
364
$2.95M
365
$2.94M
366
$2.86M
367
$2.85M
368
$2.82M
369
$2.81M
370
$2.81M
371
$2.78M
372
$2.77M
373
$2.74M
374
$2.71M
375
$2.71M