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
301
$5.05M
302
$4.83M
303
$4.83M
304
$4.76M
305
$4.74M
306
$4.69M
307
$4.68M
308
$4.68M
309
$4.68M
310
$4.68M
311
$4.49M
312
$4.38M
313
$4.37M
314
$4.34M
315
$4.24M
316
$4.19M
317
$4.18M
318
$4.16M
319
$4.12M
320
$4.03M
321
$4.01M
322
$3.99M
323
$3.98M
324
$3.89M
325
$3.89M