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
BAM
176
Belpointe Asset Management
Nevada
$5.41M
Commonwealth Equity Services
177
Commonwealth Equity Services
Massachusetts
$5.39M
OTL
178
Oak Thistle LLC
New York
$5.31M
Neuberger Berman Group
179
Neuberger Berman Group
New York
$5.3M
IMRF
180
Illinois Municipal Retirement Fund
Illinois
$5.17M
Cambridge Investment Research Advisors
181
Cambridge Investment Research Advisors
Iowa
$5.15M
Millennium Management
182
Millennium Management
New York
$5.11M
Susquehanna International Group
183
Susquehanna International Group
Pennsylvania
$5.1M
DIA
184
Dean Investment Associates
Ohio
$5.01M
AB
185
Amalgamated Bank
New York
$5M
NIG
186
NFJ Investment Group
Texas
$4.99M
Focus Partners Wealth
187
Focus Partners Wealth
Massachusetts
$4.98M
Corient Private Wealth
188
Corient Private Wealth
Florida
$4.85M
BCIM
189
British Columbia Investment Management
British Columbia, Canada
$4.78M
GCM
190
Greenland Capital Management
New York
$4.68M
WP
191
Woodline Partners
California
$4.61M
FAF
192
Första AP-fonden
Sweden
$4.56M
NAMI
193
Nomura Asset Management International
Pennsylvania
$4.56M
URS
194
Utah Retirement Systems
Utah
$4.45M
Mirae Asset Global Investments
195
Mirae Asset Global Investments
South Korea
$4.45M
EGM
196
Engineers Gate Manager
New York
$4.34M
MSV
197
MN Services Vermogensbeheer
Netherlands
$4.28M
X
198
Xponance
Pennsylvania
$4.28M
SPI
199
Strategic Planning Inc
Ohio
$4.28M
AAP
200
Arax Advisory Partners
Colorado
$4.19M