951 hedge funds and large institutions have $28B invested in Biogen in 2024 Q1 according to their latest regulatory filings, with 104 funds opening new positions, 302 increasing their positions, 354 reducing their positions, and 144 closing their positions.

New
Increased
Maintained
Reduced
Closed

more 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: $33.7B → $28B (-$5.72B)

18% less funds holding in top 10

Funds holding in top 10: 119 (-2)

28% less first-time investments, than exits

New positions opened: 104 | Existing positions closed: 144

Holders
951
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
9
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$303M
Puts
$303M
Net Calls
Net Calls Change

Top Sellers

1 -$341M
2 -$151M
3 -$93.5M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$89.1M
5
JP Morgan Chase
JP Morgan Chase
New York
-$82.6M
Name Holding Trade Value Shares
Change
Change in
Stake
201
$6.86M
202
$6.78M
203
$6.59M
204
$6.57M
205
$6.55M
206
$6.54M
207
$6.47M
208
$6.46M
209
$6.44M
210
$6.32M
211
$6.18M
212
$6.13M
213
$6M
214
$5.99M
215
$5.99M
216
$5.84M
217
$5.66M
218
$5.65M
219
$5.54M
220
$5.5M
221
$5.46M
222
$5.41M
223
$5.37M
224
$5.3M
225
$5.29M