870 hedge funds and large institutions have $23.1B invested in Ameren in 2025 Q4 according to their latest regulatory filings, with 137 funds opening new positions, 335 increasing their positions, 236 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:

0.44% more ownership

Funds ownership: 85.26%85.69% (+0.44%)

4% less capital invested

Capital invested by funds: $24.1B → $23.1B (-$908M)

40% less call options, than puts

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

Holders
870
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
Macquarie Group
101
Macquarie Group
Australia
$18.3M
1832 Asset Management
102
1832 Asset Management
Ontario, Canada
$18.1M
CB
103
Commerce Bank
Missouri
$18.1M
BBL
104
Beck Bode LLC
Massachusetts
$17.3M
Mitsubishi UFJ Trust & Banking
105
Mitsubishi UFJ Trust & Banking
Japan
$17.2M
Allspring Global Investments
106
Allspring Global Investments
North Carolina
$17.2M
Asset Management One
107
Asset Management One
Japan
$16.8M
CIBC Asset Management
108
CIBC Asset Management
Ontario, Canada
$16.7M
Envestnet Asset Management
109
Envestnet Asset Management
Illinois
$16.6M
SC
110
SummitTX Capital
Texas
$15.6M
ELI
111
Empire Life Investments
Ontario, Canada
$15.4M
SFM
112
Stack Financial Management
Montana
$15.2M
MAM
113
Martingale Asset Management
Massachusetts
$15M
State of Wisconsin Investment Board
114
State of Wisconsin Investment Board
Wisconsin
$14.6M
MGIA
115
Moneta Group Investment Advisors
Missouri
$14.6M
SG Americas Securities
116
SG Americas Securities
New York
$14.4M
State of Tennessee, Department of Treasury
117
State of Tennessee, Department of Treasury
Tennessee
$13.9M
Chevy Chase Trust
118
Chevy Chase Trust
Maryland
$13.7M
Allianz Asset Management
119
Allianz Asset Management
Germany
$13.4M
Aberdeen Group
120
Aberdeen Group
United Kingdom
$13.4M
Treasurer of the State of North Carolina
121
Treasurer of the State of North Carolina
North Carolina
$13.4M
Cetera Investment Advisers
122
Cetera Investment Advisers
Illinois
$13.3M
TD Asset Management
123
TD Asset Management
Ontario, Canada
$12.9M
National Bank of Canada
124
National Bank of Canada
Quebec, Canada
$12.8M
Creative Planning
125
Creative Planning
Kansas
$12.4M