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
MGP
376
Metis Global Partners
California
$856K
OIA
377
OneDigital Investment Advisors
Kansas
$855K
Truist Financial
378
Truist Financial
North Carolina
$844K
TSS
379
Two Sigma Securities
New York
$835K
SPWG
380
Syntegra Private Wealth Group
Missouri
$835K
VDI
381
Vaughan David Investments
Illinois
$825K
ACS
382
Archford Capital Strategies
Illinois
$823K
UCFA
383
United Capital Financial Advisors
Texas
$822K
DILIC
384
Dai-ichi Life Insurance Company
Japan
$818K
FDCDDQ
385
Federation des caisses Desjardins du Quebec
Quebec, Canada
$816K
EFSCE
386
Enterprise Financial Services Corp (EFSC)
Missouri
$809K
CCM
387
Cambridge Capital Management
Illinois
$806K
VRS
388
Virginia Retirement Systems
Virginia
$799K
AWE
389
Avidian Wealth Enterprises
Texas
$794K
Two Sigma Investments
390
Two Sigma Investments
New York
$789K
EWM
391
Empirical Wealth Management
Washington
$783K
TRCT
392
Tower Research Capital (TRC)
New York
$779K
BBVA
393
Banco Bilbao Vizcaya Argentaria
Spain
$778K
PFS
394
Prospera Financial Services
Texas
$773K
CG
395
Caprock Group
Idaho
$766K
WW
396
Waterfront Wealth
Kansas
$751K
FIA
397
Foundations Investment Advisors
Arizona
$751K
LC
398
Lavaca Capital
Texas
$746K
TA
399
Tectonic Advisors
Texas
$741K
OAM
400
Ostrum Asset Management
France
$736K