994 hedge funds and large institutions have $34.8B invested in Biogen in 2023 Q1 according to their latest regulatory filings, with 87 funds opening new positions, 340 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: 1,026994 (-32)

14% less first-time investments, than exits

New positions opened: 87 | Existing positions closed: 101

21% less funds holding in top 10

Funds holding in top 10: 2419 (-5)

Holders
994
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
$8.72M
227
$8.71M
228
$8.58M
229
$8.44M
230
$8.35M
231
$8.22M
232
$8.21M
233
$7.93M
234
$7.85M
235
$7.85M
236
$7.84M
237
$7.67M
238
$7.6M
239
$7.54M
240
$7.38M
241
$7.2M
242
$7.13M
243
$7.11M
244
$6.87M
245
$6.87M
246
$6.81M
247
$6.79M
248
$6.75M
249
$6.71M
250
$6.65M