918 hedge funds and large institutions have $25.7B invested in Ameren in 2026 Q1 according to their latest regulatory filings, with 126 funds opening new positions, 371 increasing their positions, 230 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

5% more funds holding

Funds holding: 876918 (+42)

1.08% less ownership

Funds ownership: 85.7%84.62% (-1.1%)

33% less call options, than puts

Call options by funds: $12.8M | Put options by funds: $19.1M

Holders
918
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$12.8M
Puts
$19.1M
Net Calls
Net Calls Change

Top Buyers

1 +$343M
2 +$182M
3 +$104M
4
BlackRock
BlackRock
New York
+$88.8M
5
Balyasny Asset Management
Balyasny Asset Management
Illinois
+$75.8M
Name Holding Trade Value Shares
Change
Change in
Stake
FGP
101
Freestone Grove Partners
California
$21.8M
State of Wisconsin Investment Board
102
State of Wisconsin Investment Board
Wisconsin
$21.6M
Envestnet Asset Management
103
Envestnet Asset Management
Illinois
$20.9M
BSA
104
Braun Stacey Associates
New York
$20.8M
WorldQuant Millennium Advisors
105
WorldQuant Millennium Advisors
New York
$20.8M
NEI
106
Northwest & Ethical Investments
Ontario, Canada
$20.7M
Creative Planning
107
Creative Planning
Kansas
$20.6M
BBL
108
Beck Bode LLC
Massachusetts
$19.9M
CB
109
Commerce Bank
Missouri
$19.8M
Mitsubishi UFJ Trust & Banking
110
Mitsubishi UFJ Trust & Banking
Japan
$19.5M
Macquarie Group
111
Macquarie Group
Australia
$19.4M
1832 Asset Management
112
1832 Asset Management
Ontario, Canada
$19.1M
Man Group
113
Man Group
United Kingdom
$19M
CIBC Asset Management
114
CIBC Asset Management
Ontario, Canada
$19M
Allspring Global Investments
115
Allspring Global Investments
North Carolina
$18.6M
Asset Management One
116
Asset Management One
Japan
$18.1M
Aberdeen Group
117
Aberdeen Group
United Kingdom
$17.4M
SC
118
SummitTX Capital
Texas
$17.3M
SFM
119
Stack Financial Management
Montana
$16.9M
SG Americas Securities
120
SG Americas Securities
New York
$16.6M
VanEck Associates
121
VanEck Associates
New York
$16.4M
MGIA
122
Moneta Group Investment Advisors
Missouri
$16.3M
ELI
123
Empire Life Investments
Ontario, Canada
$16.2M
ADEF
124
Adams Diversified Equity Fund
Maryland
$16.1M
PP
125
Prudential plc
United Kingdom
$15.7M