912 hedge funds and large institutions have $25.1B invested in Biogen in 2024 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 268 increasing their positions, 376 reducing their positions, and 117 closing their positions.

New
Increased
Maintained
Reduced
Closed

more ownership

Funds ownership:

less funds holding

Funds holding:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less capital invested

Capital invested by funds: $ → $

24% less call options, than puts

Call options by funds: $214M | Put options by funds: $282M

29% less repeat investments, than reductions

Existing positions increased: 268 | Existing positions reduced: 376

33% less funds holding in top 10

Funds holding in top 10: 128 (-4)

Holders
912
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
$214M
Puts
$282M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
326
$1.67M
327
$1.66M
328
$1.66M
329
$1.64M
330
$1.62M
331
$1.61M
332
$1.61M
333
$1.58M
334
$1.57M
335
$1.56M
336
$1.55M
337
$1.55M
338
$1.54M
339
$1.53M
340
$1.51M
341
$1.5M
342
$1.48M
343
$1.45M
344
$1.44M
345
$1.43M
346
$1.42M
347
$1.4M
348
$1.39M
349
$1.39M
350
$1.38M