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
SW
876
SteelPeak Wealth
California
OQS
877
Occudo Quantitative Strategies
Florida
CIBC World Market
878
CIBC World Market
Ontario, Canada
AIM
879
Ausbil Investment Management
Australia
DS
880
DRW Securities
Illinois
GP
881
Gallo Partners
New Jersey
FBFS
882
First Business Financial Services
Wisconsin
YIH
883
Y-Intercept (HK)
Hong Kong
EF
884
Empowered Funds
Pennsylvania
MC
885
Machina Capital
France
JF
886
Jump Financial
Illinois
BCM
887
Bayesian Capital Management
New York
OC
888
Oppenheimer & Co
New York
SSA
889
Schonfeld Strategic Advisors
New York
PCA
890
Prosperity Capital Advisors
Ohio
Connor, Clark & Lunn Investment Management (CC&L)
891
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
VCM
892
Voleon Capital Management
California
Grantham, Mayo, Van Otterloo & Co (GMO)
893
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
SB
894
Simmons Bank
Arkansas
ASN
895
Advisory Services Network
Georgia
BJL
896
Brighton Jones LLC
Washington
AWA
897
Amplius Wealth Advisors
Pennsylvania
FFG
898
Fiduciary Financial Group
California
FTWA
899
Fifth Third Wealth Advisors
Ohio
IC
900
Inscription Capital
Texas