944 hedge funds and large institutions have $27.8B invested in Biogen in 2024 Q1 according to their latest regulatory filings, with 102 funds opening new positions, 300 increasing their positions, 352 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

less call options, than puts

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

less ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

17% less capital invested

Capital invested by funds: $33.5B → $27.8B (-$5.73B)

20% less funds holding in top 10

Funds holding in top 10: 108 (-2)

29% less first-time investments, than exits

New positions opened: 102 | Existing positions closed: 144

Holders
944
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$301M
Puts
$303M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
201
$6.59M
202
$6.57M
203
$6.55M
204
$6.54M
205
$6.47M
206
$6.46M
207
$6.44M
208
$6.32M
209
$6.18M
210
$6.13M
211
$6M
212
$5.99M
213
$5.99M
214
$5.84M
215
$5.66M
216
$5.65M
217
$5.54M
218
$5.5M
219
$5.46M
220
$5.41M
221
$5.37M
222
$5.3M
223
$5.29M
224
$5.26M
225
$5.21M