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