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
276
$2.73M
277
$2.73M
278
$2.7M
279
$2.69M
280
$2.67M
281
$2.63M
282
$2.62M
283
$2.59M
284
$2.58M
285
$2.57M
286
$2.5M
287
$2.49M
288
$2.48M
289
$2.41M
290
$2.36M
291
$2.25M
292
$2.23M
293
$2.22M
294
$2.22M
295
$2.21M
296
$2.2M
297
$2.19M
298
$2.17M
299
$2.16M
300
$2.16M