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
326
$1.99M
327
$1.99M
328
$1.98M
329
$1.98M
330
$1.96M
331
$1.87M
332
$1.86M
333
$1.85M
334
$1.83M
335
$1.78M
336
$1.77M
337
$1.77M
338
$1.76M
339
$1.75M
340
$1.75M
341
$1.73M
342
$1.72M
343
$1.7M
344
$1.69M
345
$1.69M
346
$1.68M
347
$1.68M
348
$1.67M
349
$1.66M
350
$1.66M