861 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, 334 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
861
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
CCA
901
Catalyst Capital Advisors
New York
Walleye Capital
902
Walleye Capital
New York
Loomis, Sayles & Company
903
Loomis, Sayles & Company
Massachusetts
PFA
904
Pathway Financial Advisers
Indiana
OCM
905
Osterweis Capital Management
California
KHC
906
Koesten Hirschmann & Crabtree
Kansas
CIAM
907
Caitong International Asset Management
Hong Kong
MSG
908
Main Street Group
Virginia
KFP
909
Keener Financial Planning
Texas
RA
910
Rise Advisors
New York
JWM
911
JPL Wealth Management
Colorado
GFM
912
GF Fund Management
China
WA
913
WPG Advisers
Maryland
MSWA
914
Marshall & Sterling Wealth Advisors
New York
CWP
915
Concord Wealth Partners
Virginia
GWSG
916
GPS Wealth Strategies Group
Colorado
FGAM
917
Financial Gravity Asset Management
Texas
HHGA
918
Halbert Hargrove Global Advisors
California
CCM
919
Cloud Capital Management
Washington
OAJ
920
Ogorek Anthony Joseph
New York
TIM
921
Tortoise Investment Management
New York
MA
922
Montag & Associates
Georgia
GFWA
923
Grey Fox Wealth Advisors
Delaware
TCA
924
Trifecta Capital Advisors
Illinois
HWA
925
Heartwood Wealth Advisors
Virginia