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
176
$9.12M
177
$9.06M
178
$9.04M
179
$8.97M
180
$8.93M
181
$8.87M
182
$8.82M
183
$8.7M
184
$8.59M
185
$8.56M
186
$8.52M
187
$8.37M
188
$8.28M
189
$7.72M
190
$7.58M
191
$7.41M
192
$7.37M
193
$7.37M
194
$7.33M
195
$7.31M
196
$7.25M
197
$7.1M
198
$6.97M
199
$6.93M
200
$6.9M