861 hedge funds and large institutions have $23.1B invested in Ameren in 2025 Q4 according to their latest regulatory filings, with 131 funds opening new positions, 334 increasing their positions, 235 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

0.26% more ownership

Funds ownership: 85.26%85.52% (+0.26%)

4% less capital invested

Capital invested by funds: $24.1B → $23.1B (-$955M)

40% less call options, than puts

Call options by funds: $19.8M | Put options by funds: $32.8M

Holders
861
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$19.8M
Puts
$32.8M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
ECM
51
ExodusPoint Capital Management
New York
$61.2M
Manulife (Manufacturers Life Insurance)
52
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$59.2M
Mitsubishi UFJ Asset Management
53
Mitsubishi UFJ Asset Management
Japan
$57.4M
CIBC Private Wealth Group
54
CIBC Private Wealth Group
Georgia
$56.5M
HHAM
55
HITE Hedge Asset Management
Massachusetts
$55.7M
COPPSERS
56
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$55.3M
UM
57
UniSuper Management
Australia
$54.3M
Royal Bank of Canada
58
Royal Bank of Canada
Ontario, Canada
$51.9M
Assenagon Asset Management
59
Assenagon Asset Management
Luxembourg
$51.8M
CCM
60
Chilton Capital Management
Texas
$51M
EIP
61
Energy Income Partners
Connecticut
$49.5M
Squarepoint
62
Squarepoint
New York
$49.2M
GF
63
Gabelli Funds
New York
$48.2M
RhumbLine Advisers
64
RhumbLine Advisers
Massachusetts
$46.4M
Amundi
65
Amundi
France
$44.6M
YCM
66
Yaupon Capital Management
New York
$43.4M
Bank of Nova Scotia
67
Bank of Nova Scotia
Ontario, Canada
$40.2M
Qube Research & Technologies (QRT)
68
Qube Research & Technologies (QRT)
United Kingdom
$39.2M
BNP Paribas Financial Markets
69
BNP Paribas Financial Markets
France
$38.9M
Citigroup
70
Citigroup
New York
$38.4M
Prudential Financial
71
Prudential Financial
New Jersey
$38M
SEI Investments
72
SEI Investments
Pennsylvania
$37.3M
National Pension Service
73
National Pension Service
South Korea
$37.1M
Bank of Montreal
74
Bank of Montreal
Ontario, Canada
$35.8M
GIA
75
Gateway Investment Advisers
Ohio
$34.5M