906 hedge funds and large institutions have $24.9B invested in Biogen in 2024 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 266 increasing their positions, 374 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: $ → $

25% less call options, than puts

Call options by funds: $213M | Put options by funds: $282M

27% less funds holding in top 10

Funds holding in top 10: 118 (-3)

29% less repeat investments, than reductions

Existing positions increased: 266 | Existing positions reduced: 374

Holders
906
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
$213M
Puts
$282M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
351
$1.33M
352
$1.33M
353
$1.31M
354
$1.3M
355
$1.3M
356
$1.3M
357
$1.29M
358
$1.29M
359
$1.26M
360
$1.26M
361
$1.23M
362
$1.23M
363
$1.22M
364
$1.2M
365
$1.19M
366
$1.18M
367
$1.18M
368
$1.18M
369
$1.17M
370
$1.17M
371
$1.16M
372
$1.15M
373
$1.15M
374
$1.14M
375
$1.12M