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
NMIMC
376
Northwestern Mutual Investment Management Company
Wisconsin
$863K
UB
377
UMB Bank
Missouri
$863K
MGP
378
Metis Global Partners
California
$856K
OIA
379
OneDigital Investment Advisors
Kansas
$855K
Truist Financial
380
Truist Financial
North Carolina
$844K
TSS
381
Two Sigma Securities
New York
$835K
SPWG
382
Syntegra Private Wealth Group
Missouri
$835K
VDI
383
Vaughan David Investments
Illinois
$825K
ACS
384
Archford Capital Strategies
Illinois
$823K
UCFA
385
United Capital Financial Advisors
Texas
$822K
DILIC
386
Dai-ichi Life Insurance Company
Japan
$818K
FDCDDQ
387
Federation des caisses Desjardins du Quebec
Quebec, Canada
$816K
EFSCE
388
Enterprise Financial Services Corp (EFSC)
Missouri
$809K
CCM
389
Cambridge Capital Management
Illinois
$806K
VRS
390
Virginia Retirement Systems
Virginia
$799K
AWE
391
Avidian Wealth Enterprises
Texas
$794K
Two Sigma Investments
392
Two Sigma Investments
New York
$789K
EWM
393
Empirical Wealth Management
Washington
$783K
TRCT
394
Tower Research Capital (TRC)
New York
$779K
BBVA
395
Banco Bilbao Vizcaya Argentaria
Spain
$778K
PFS
396
Prospera Financial Services
Texas
$773K
CG
397
Caprock Group
Idaho
$766K
WW
398
Waterfront Wealth
Kansas
$751K
FIA
399
Foundations Investment Advisors
Arizona
$751K
LC
400
Lavaca Capital
Texas
$746K