904 hedge funds and large institutions have $24.5B invested in Biogen in 2024 Q3 according to their latest regulatory filings, with 99 funds opening new positions, 265 increasing their positions, 374 reducing their positions, and 118 closing their positions.

New
Increased
Maintained
Reduced
Closed

less 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: 265 | Existing positions reduced: 374

Holders
904
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
1
$3.23B
2
$3.16B
3
$2.97B
4
$1.42B
5
$1.02B
6
$995M
7
$825M
8
$698M
9
$371M
10
$366M
11
$338M
12
$316M
13
$262M
14
$243M
15
$230M
16
$223M
17
$223M
18
$216M
19
$194M
20
$192M
21
$185M
22
$179M
23
$177M
24
$166M
25
$164M