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
TIAA Trust, National Association
351
TIAA Trust, National Association
North Carolina
$1.04M
CBT
352
Central Bank & Trust
Kentucky
$1.03M
Walleye Trading
353
Walleye Trading
New York
$1.02M
RRA
354
Round Rock Advisors
Connecticut
$1.02M
VAS
355
Vestmark Advisory Solutions
Massachusetts
$1.01M
NA
356
NewEdge Advisors
Louisiana
$997K
NSIM
357
North Star Investment Management
Illinois
$989K
QI
358
Qtron Investments
Massachusetts
$985K
CFO
359
Callan Family Office
Pennsylvania
$974K
GI
360
GAMMA Investing
California
$968K
JCM
361
Jag Capital Management
Missouri
$965K
BNP Paribas Asset Management
362
BNP Paribas Asset Management
France
$964K
OAC
363
OMERS Administration Corp
Ontario, Canada
$945K
TMAM
364
Tokio Marine Asset Management
Japan
$944K
GLR
365
Great Lakes Retirement
Ohio
$936K
NDSIB
366
North Dakota State Investment Board
North Dakota
$924K
MA
367
Maxele Advisors
Missouri
$918K
AWM
368
Apollon Wealth Management
South Carolina
$914K
JWCA
369
J.W. Cole Advisors
Florida
$903K
Teacher Retirement System of Texas
370
Teacher Retirement System of Texas
Texas
$895K
EF
371
Empirical Finance
Pennsylvania
$885K
SPIA
372
Steward Partners Investment Advisory
New York
$877K
ETC
373
Exchange Traded Concepts
Oklahoma
$874K
PFBT
374
Parkside Financial Bank & Trust
Missouri
$868K
ALC
375
Alexander Labrunerie & Co
Missouri
$863K