788 hedge funds and large institutions have $22.2B invested in Ameren in 2025 Q2 according to their latest regulatory filings, with 93 funds opening new positions, 338 increasing their positions, 218 reducing their positions, and 89 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
788
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
$15.3M
Puts
$4.51M
Net Calls
Net Calls Change

Top Sellers

1 -$67.1M
2 -$55.1M
3 -$43M
4
ZP
Zimmer Partners
New York
-$33.4M
5
First Trust Advisors
First Trust Advisors
Illinois
-$32.1M
Name Holding Trade Value Shares
Change
Change in
Stake
Jennison Associates
26
Jennison Associates
New York
$161M
ECM
27
ExodusPoint Capital Management
New York
$160M
Bank of New York Mellon
28
Bank of New York Mellon
New York
$148M
UBS AM
29
UBS AM
Illinois
$146M
DPIM
30
Duff & Phelps Investment Management
Illinois
$134M
SCP
31
Soroban Capital Partners
New York
$132M
Caisse de Depot et Placement du Quebec (CDPQ)
32
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$125M
UBS Group
33
UBS Group
Switzerland
$122M
Barclays
34
Barclays
United Kingdom
$118M
Dimensional Fund Advisors
35
Dimensional Fund Advisors
Texas
$103M
California Public Employees Retirement System
36
California Public Employees Retirement System
California
$97.3M
Point72 Asset Management
37
Point72 Asset Management
Connecticut
$88.7M
First Trust Advisors
38
First Trust Advisors
Illinois
$86.7M
Marshall Wace
39
Marshall Wace
United Kingdom
$82M
CVA
40
Ceredex Value Advisors
Florida
$78.9M
Swiss National Bank
41
Swiss National Bank
Switzerland
$78.5M
ZP
42
Zimmer Partners
New York
$72.5M
Deutsche Bank
43
Deutsche Bank
Germany
$70.8M
UM
44
UniSuper Management
Australia
$63.4M
HHAM
45
HITE Hedge Asset Management
Massachusetts
$63.4M
Sumitomo Mitsui Trust Group
46
Sumitomo Mitsui Trust Group
Japan
$62.7M
Manulife (Manufacturers Life Insurance)
47
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$55.1M
Squarepoint
48
Squarepoint
New York
$54.2M
COPPSERS
49
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$49.9M
Mitsubishi UFJ Asset Management
50
Mitsubishi UFJ Asset Management
Japan
$49.6M