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879 hedge funds and large institutions have $23.2B invested in Ameren in 2025 Q4 according to their latest regulatory filings, with 142 funds opening new positions, 336 increasing their positions, 238 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

103% more first-time investments, than exits

New positions opened: 142 | Existing positions closed: 70

50% more funds holding in top 10

Funds holding in top 10: 46 (+2)

41% more repeat investments, than reductions

Existing positions increased: 336 | Existing positions reduced: 238

7% more funds holding

Funds holding: 823879 (+56)

0.45% more ownership

Funds ownership: 85.26%85.71% (+0.45%)

4% less capital invested

Capital invested by funds: $24.1B → $23.2B (-$905M)

40% less call options, than puts

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

Holders
879
Holders Change
+56
Holders Change %
+6.8%
% of All Funds
10.7%
Holding in Top 10
6
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+50%
% of All Funds
0.07%
New
142
Increased
336
Reduced
238
Closed
70
Calls
$19.8M
Puts
$32.8M
Net Calls
-$13M
Net Calls Change
-$24.3M
Name Holding Trade Value Shares
Change
Change in
Stake
VCM
901
Voleon Capital Management
California
-$399K -3,824 Closed
Grantham, Mayo, Van Otterloo & Co (GMO)
902
Grantham, Mayo, Van Otterloo & Co (GMO)
Massachusetts
-$314K -3,007 Closed
SB
903
Simmons Bank
Arkansas
-$256K -2,449 Closed
ASN
904
Advisory Services Network
Georgia
-$235K -2,254 Closed
BJL
905
Brighton Jones LLC
Washington
-$225K -2,159 Closed
AWA
906
Amplius Wealth Advisors
Pennsylvania
-$220K -2,112 Closed
FFG
907
Fiduciary Financial Group
California
-$220K -2,107 Closed
FTWA
908
Fifth Third Wealth Advisors
Ohio
-$217K -2,083 Closed
IC
909
Inscription Capital
Texas
-$216K -2,071 Closed
SWTS
910
Stonehaven Wealth & Tax Solutions
Wisconsin
-$216K -2,070 Closed
SOW
911
State of Wyoming
Wyoming
-$211K -2,023 Closed
GCM
912
Graver Capital Management
Ohio
-$209K -2,000 Closed
RG
913
Rathbones Group
United Kingdom
-$209K -2,000 Closed
WIA
914
Wetzel Investment Advisors
Indiana
-$209K -2,000 Closed
SFC
915
SYM Financial Corp
Indiana
-$208K -1,996 Closed
CIA
916
Capital Investment Advisors
Georgia
-$207K -1,979 Closed
CI Investments Inc
917
CI Investments Inc
Ontario, Canada
-$114K -1,089 Closed
SIC
918
Salem Investment Counselors
North Carolina
-$97.2K -931 Closed
CCA
919
Catalyst Capital Advisors
New York
-$90.7K -869 Closed
Walleye Capital
920
Walleye Capital
New York
-$79K -757 Closed
Loomis, Sayles & Company
921
Loomis, Sayles & Company
Massachusetts
-$71.3K -683 Closed
PFA
922
Pathway Financial Advisers
Indiana
-$44.2K -424 Closed
OCM
923
Osterweis Capital Management
California
-$32K -307 Closed
KHC
924
Koesten Hirschmann & Crabtree
Kansas
-$28.7K -275 Closed
CIAM
925
Caitong International Asset Management
Hong Kong
-$27.8K -266 Closed