859 hedge funds and large institutions have $23.1B invested in Ameren in 2025 Q4 according to their latest regulatory filings, with 131 funds opening new positions, 333 increasing their positions, 235 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:

0.26% more ownership

Funds ownership: 85.26%85.52% (+0.26%)

4% less capital invested

Capital invested by funds: $24.1B → $23.1B (-$955M)

40% less call options, than puts

Call options by funds: $19.8M | Put options by funds: $32.8M

Holders
859
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
Loomis, Sayles & Company
901
Loomis, Sayles & Company
Massachusetts
PFA
902
Pathway Financial Advisers
Indiana
OCM
903
Osterweis Capital Management
California
KHC
904
Koesten Hirschmann & Crabtree
Kansas
CIAM
905
Caitong International Asset Management
Hong Kong
MSG
906
Main Street Group
Virginia
KFP
907
Keener Financial Planning
Texas
RA
908
Rise Advisors
New York
JWM
909
JPL Wealth Management
Colorado
GFM
910
GF Fund Management
China
WA
911
WPG Advisers
Maryland
MSWA
912
Marshall & Sterling Wealth Advisors
New York
CWP
913
Concord Wealth Partners
Virginia
GWSG
914
GPS Wealth Strategies Group
Colorado
FGAM
915
Financial Gravity Asset Management
Texas
HHGA
916
Halbert Hargrove Global Advisors
California
CCM
917
Cloud Capital Management
Washington
OAJ
918
Ogorek Anthony Joseph
New York
TIM
919
Tortoise Investment Management
New York
MA
920
Montag & Associates
Georgia
GFWA
921
Grey Fox Wealth Advisors
Delaware
TCA
922
Trifecta Capital Advisors
Illinois
HWA
923
Heartwood Wealth Advisors
Virginia
AFG
924
Albion Financial Group
Utah
OA
925
Operose Advisors
Wisconsin