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
326
$3.87M
327
$3.84M
328
$3.76M
329
$3.76M
330
$3.74M
331
$3.69M
332
$3.68M
333
$3.66M
334
$3.58M
335
$3.57M
336
$3.57M
337
$3.53M
338
$3.53M
339
$3.52M
340
$3.52M
341
$3.5M
342
$3.46M
343
$3.43M
344
$3.42M
345
$3.41M
346
$3.4M
347
$3.36M
348
$3.34M
349
$3.31M
350
$3.31M