876 hedge funds and large institutions have $23.2B invested in Ameren in 2025 Q4 according to their latest regulatory filings, with 139 funds opening new positions, 336 increasing their positions, 238 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%85.7% (+0.44%)

4% less capital invested

Capital invested by funds: $24.1B → $23.2B (-$906M)

40% less call options, than puts

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

Holders
876
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
KTC
301
Kentucky Trust Company
Kentucky
$1.47M
Canada Pension Plan Investment Board
302
Canada Pension Plan Investment Board
Ontario, Canada
$1.46M
GIBU
303
Gulf International Bank (UK)
United Kingdom
$1.45M
SWP
304
Stratos Wealth Partners
Ohio
$1.43M
BCA
305
Bay Colony Advisors
Massachusetts
$1.41M
Jane Street
306
Jane Street
New York
$1.41M
MSRPS
307
Maryland State Retirement & Pension System
Maryland
$1.38M
LSERS
308
Louisiana State Employees Retirement System
Louisiana
$1.38M
MFWP
309
Mosaic Family Wealth Partners
Missouri
$1.37M
NP
310
Ninepoint Partners
Ontario, Canada
$1.37M
OAM
311
OP Asset Management
$1.36M
HA
312
Huntleigh Advisors
Missouri
$1.34M
PA
313
Profund Advisors
Maryland
$1.34M
OIC
314
Orion Investment Company
Missouri
$1.33M
CIA
315
Concurrent Investment Advisors
Florida
$1.33M
AC
316
Avestar Capital
New York
$1.33M
DIA
317
Dana Investment Advisors
Wisconsin
$1.33M
AV
318
Alamea Verwaltungs
New Jersey
$1.28M
BFM
319
Boothbay Fund Management
New York
$1.26M
NMERB
320
New Mexico Educational Retirement Board
New Mexico
$1.24M
ECSS
321
Eurizon Capital SGR SpA
$1.23M
FWCM
322
Ferguson Wellman Capital Management
Oregon
$1.23M
MYIA
323
Mount Yale Investment Advisors
Colorado
$1.23M
VA
324
Vident Advisory
Georgia
$1.23M
KAM
325
KEB Asset Management
Illinois
$1.22M