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
226
$10.7M
227
$10.6M
228
$10.6M
229
$9.98M
230
$9.94M
231
$9.87M
232
$9.77M
233
$9.72M
234
$9.66M
235
$9.47M
236
$9.45M
237
$9.44M
238
$9.4M
239
$9.38M
240
$9.35M
241
$9.17M
242
$9.14M
243
$9.13M
244
$8.95M
245
$8.74M
246
$8.73M
247
$8.71M
248
$8.69M
249
$8.67M
250
$8.62M