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
PFSRSONJ
201
Police & Firemen's Retirement System of New Jersey
New Jersey
$4.14M
FAM
202
Fulcrum Asset Management
United Kingdom
$4.11M
UIM
203
USS Investment Management
United Kingdom
$4.09M
HighTower Advisors
204
HighTower Advisors
Illinois
$4.09M
YCM
205
Yousif Capital Management
Michigan
$4.05M
AF
206
Allworth Financial
California
$3.92M
PF
207
Prosperitas Financial
California
$3.84M
SMDAM
208
Sumitomo Mitsui DS Asset Management
Japan
$3.81M
Osaic Holdings
209
Osaic Holdings
Arizona
$3.79M
CWM
210
CIBC World Markets
New York
$3.76M
Pathstone Holdings
211
Pathstone Holdings
New Jersey
$3.69M
NYLIM
212
New York Life Investment Management
New York
$3.69M
SPS
213
Susquehanna Portfolio Strategies
Pennsylvania
$3.65M
DADC
214
D.A. Davidson & Co
Montana
$3.65M
RIM
215
Rakuten Investment Management
Japan
$3.57M
Balyasny Asset Management
216
Balyasny Asset Management
Illinois
$3.56M
Mackenzie Financial
217
Mackenzie Financial
Ontario, Canada
$3.56M
MML Investors Services
218
MML Investors Services
Massachusetts
$3.53M
HAI
219
Hennessy Advisors Inc
California
$3.5M
NS
220
NBC Securities
Alabama
$3.49M
NAM
221
Nissay Asset Management
Japan
$3.46M
DekaBank Deutsche Girozentrale
222
DekaBank Deutsche Girozentrale
Germany
$3.4M
JFG
223
Jefferies Financial Group
New York
$3.33M
BAMF
224
BI Asset Management Fondsmaeglerselskab
Denmark
$3.29M
SOADOR
225
State of Alaska Department of Revenue
Alaska
$3.25M