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
Daiwa Securities Group
176
Daiwa Securities Group
Japan
$5.55M
Nisa Investment Advisors
177
Nisa Investment Advisors
Missouri
$5.43M
BAM
178
Belpointe Asset Management
Nevada
$5.41M
Commonwealth Equity Services
179
Commonwealth Equity Services
Massachusetts
$5.39M
OTL
180
Oak Thistle LLC
New York
$5.31M
Neuberger Berman Group
181
Neuberger Berman Group
New York
$5.3M
IMRF
182
Illinois Municipal Retirement Fund
Illinois
$5.17M
Cambridge Investment Research Advisors
183
Cambridge Investment Research Advisors
Iowa
$5.15M
Millennium Management
184
Millennium Management
New York
$5.11M
Susquehanna International Group
185
Susquehanna International Group
Pennsylvania
$5.1M
DIA
186
Dean Investment Associates
Ohio
$5.01M
AB
187
Amalgamated Bank
New York
$5M
NIG
188
NFJ Investment Group
Texas
$4.99M
Focus Partners Wealth
189
Focus Partners Wealth
Massachusetts
$4.98M
BCIM
190
British Columbia Investment Management
British Columbia, Canada
$4.78M
GCM
191
Greenland Capital Management
New York
$4.68M
WP
192
Woodline Partners
California
$4.61M
FAF
193
Första AP-fonden
Sweden
$4.56M
NAMI
194
Nomura Asset Management International
Pennsylvania
$4.56M
URS
195
Utah Retirement Systems
Utah
$4.45M
Mirae Asset Global Investments
196
Mirae Asset Global Investments
South Korea
$4.45M
EGM
197
Engineers Gate Manager
New York
$4.34M
MSV
198
MN Services Vermogensbeheer
Netherlands
$4.28M
X
199
Xponance
Pennsylvania
$4.28M
SPI
200
Strategic Planning Inc
Ohio
$4.28M