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
GF
51
Gabelli Funds
New York
$46.9M
RhumbLine Advisers
52
RhumbLine Advisers
Massachusetts
$44.9M
YCM
53
Yaupon Capital Management
New York
$44.2M
WHRC
54
W.H. Reaves & Co
New Jersey
$43.6M
HSBC Holdings
55
HSBC Holdings
United Kingdom
$42.8M
CIBC Private Wealth Group
56
CIBC Private Wealth Group
Georgia
$41.6M
SEI Investments
57
SEI Investments
Pennsylvania
$35.5M
Royal Bank of Canada
58
Royal Bank of Canada
Ontario, Canada
$34.3M
Hudson Bay Capital Management
59
Hudson Bay Capital Management
Connecticut
$33.9M
GIA
60
Gateway Investment Advisers
Ohio
$33.3M
National Pension Service
61
National Pension Service
South Korea
$32M
Bank of Montreal
62
Bank of Montreal
Ontario, Canada
$31.2M
Canada Pension Plan Investment Board
63
Canada Pension Plan Investment Board
Ontario, Canada
$31.1M
California State Teachers Retirement System (CalSTRS)
64
California State Teachers Retirement System (CalSTRS)
California
$31.1M
Principal Financial Group
65
Principal Financial Group
Iowa
$30.8M
Amundi
66
Amundi
France
$30.5M
Schroder Investment Management Group
67
Schroder Investment Management Group
United Kingdom
$30.3M
Citigroup
68
Citigroup
New York
$28.5M
Victory Capital Management
69
Victory Capital Management
Texas
$28.4M
CCM
70
Chilton Capital Management
Texas
$28.4M
EIP
71
Energy Income Partners
Connecticut
$27.8M
Voloridge Investment Management
72
Voloridge Investment Management
Florida
$26M
AQR Capital Management
73
AQR Capital Management
Connecticut
$25.8M
Russell Investments Group
74
Russell Investments Group
United Kingdom
$25.6M
State Board of Administration of Florida Retirement System
75
State Board of Administration of Florida Retirement System
Florida
$24.5M