996 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 88 funds opening new positions, 341 increasing their positions, 362 reducing their positions, and 101 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more ownership

Funds ownership:

more capital invested

Capital invested by funds: $ → $

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

3% less funds holding

Funds holding: 1,027996 (-31)

13% less first-time investments, than exits

New positions opened: 88 | Existing positions closed: 101

21% less funds holding in top 10

Funds holding in top 10: 2419 (-5)

Holders
996
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
19
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$744M
Puts
$674M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
226
$8.77M
227
$8.72M
228
$8.71M
229
$8.58M
230
$8.44M
231
$8.35M
232
$8.22M
233
$8.21M
234
$7.93M
235
$7.85M
236
$7.85M
237
$7.84M
238
$7.67M
239
$7.6M
240
$7.54M
241
$7.38M
242
$7.2M
243
$7.13M
244
$7.11M
245
$6.87M
246
$6.87M
247
$6.81M
248
$6.79M
249
$6.75M
250
$6.71M