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
AAP
201
Arax Advisory Partners
Colorado
$4.19M
PFSRSONJ
202
Police & Firemen's Retirement System of New Jersey
New Jersey
$4.14M
FAM
203
Fulcrum Asset Management
United Kingdom
$4.11M
UIM
204
USS Investment Management
United Kingdom
$4.09M
HighTower Advisors
205
HighTower Advisors
Illinois
$4.09M
YCM
206
Yousif Capital Management
Michigan
$4.05M
AF
207
Allworth Financial
California
$3.92M
PF
208
Prosperitas Financial
California
$3.84M
SMDAM
209
Sumitomo Mitsui DS Asset Management
Japan
$3.81M
Osaic Holdings
210
Osaic Holdings
Arizona
$3.79M
CWM
211
CIBC World Markets
New York
$3.76M
Pathstone Holdings
212
Pathstone Holdings
New Jersey
$3.69M
NYLIM
213
New York Life Investment Management
New York
$3.69M
SPS
214
Susquehanna Portfolio Strategies
Pennsylvania
$3.65M
DADC
215
D.A. Davidson & Co
Montana
$3.65M
RIM
216
Rakuten Investment Management
Japan
$3.57M
Balyasny Asset Management
217
Balyasny Asset Management
Illinois
$3.56M
Mackenzie Financial
218
Mackenzie Financial
Ontario, Canada
$3.56M
MML Investors Services
219
MML Investors Services
Massachusetts
$3.53M
HAI
220
Hennessy Advisors Inc
California
$3.5M
NS
221
NBC Securities
Alabama
$3.49M
NAM
222
Nissay Asset Management
Japan
$3.46M
DekaBank Deutsche Girozentrale
223
DekaBank Deutsche Girozentrale
Germany
$3.4M
JFG
224
Jefferies Financial Group
New York
$3.33M
BAMF
225
BI Asset Management Fondsmaeglerselskab
Denmark
$3.29M