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879 hedge funds and large institutions have $23.2B invested in Ameren in 2025 Q4 according to their latest regulatory filings, with 142 funds opening new positions, 336 increasing their positions, 238 reducing their positions, and 70 closing their positions.

New
Increased
Maintained
Reduced
Closed

103% more first-time investments, than exits

New positions opened: 142 | Existing positions closed: 70

50% more funds holding in top 10

Funds holding in top 10: 46 (+2)

41% more repeat investments, than reductions

Existing positions increased: 336 | Existing positions reduced: 238

7% more funds holding

Funds holding: 823879 (+56)

0.45% more ownership

Funds ownership: 85.26%85.71% (+0.45%)

4% less capital invested

Capital invested by funds: $24.1B → $23.2B (-$905M)

40% less call options, than puts

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

Holders
879
Holders Change
+56
Holders Change %
+6.8%
% of All Funds
10.7%
Holding in Top 10
6
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+50%
% of All Funds
0.07%
New
142
Increased
336
Reduced
238
Closed
70
Calls
$19.8M
Puts
$32.8M
Net Calls
-$13M
Net Calls Change
-$24.3M
Name Holding Trade Value Shares
Change
Change in
Stake
SOADOR
226
State of Alaska Department of Revenue
Alaska
$3.25M -$215K -2,095 -6%
Pacer Advisors
227
Pacer Advisors
Pennsylvania
$3.19M +$941K +9,176 +40%
NIM
228
NEOS Investment Management
Connecticut
$3.16M +$508K +4,959 +19%
OPERF
229
Oregon Public Employees Retirement Fund
Oregon
$3.09M +$1.95K +19 +0.1%
HWAM
230
Hennion & Walsh Asset Management
New Jersey
$3.04M +$355K +3,466 +13%
NAAA
231
New Age Alpha Advisors
New York
$2.98M +$70.6K +689 +2%
Rafferty Asset Management
232
Rafferty Asset Management
New York
$2.97M +$135K +1,312 +5%
BTC
233
Bank & Trust Company
Illinois
$2.93M
VPIM
234
Vanguard Personalized Indexing Management
California
$2.92M +$91K +887 +3%
KBC Group
235
KBC Group
Belgium
$2.91M +$188K +1,829 +7%
MOACM
236
Mutual of America Capital Management
New York
$2.9M -$27.5K -268 -0.9%
CWM
237
Cornerstone Wealth Management
Missouri
$2.88M +$475K +4,635 +19%
MA
238
Mutual Advisors
Nebraska
$2.79M +$115K +1,124 +4%
OTPPB
239
Ontario Teachers' Pension Plan Board
Ontario, Canada
$2.74M +$2.82M +27,470 New
Mercer Global Advisors
240
Mercer Global Advisors
Colorado
$2.73M +$305K +2,979 +12%
HI
241
Horizon Investments
North Carolina
$2.63M +$1.78M +17,336 +193%
CTC
242
Central Trust Company
Missouri
$2.6M -$188K -1,834 -7%
VI
243
Vestcor Inc
New Brunswick, Canada
$2.6M
Northwestern Mutual Wealth Management
244
Northwestern Mutual Wealth Management
Wisconsin
$2.59M -$145K -1,417 -5%
DCM
245
Dean Capital Management
Kansas
$2.58M +$80.8K +788 +3%
Public Employees Retirement Association of Colorado
246
Public Employees Retirement Association of Colorado
Colorado
$2.53M
PAM
247
Panagora Asset Management
Massachusetts
$2.53M +$1.68M +16,374 +183%
AI
248
Atom Investors
Texas
$2.48M -$1.76M -17,180 -41%
SGI
249
Summit Global Investments
Utah
$2.42M -$1.05M -10,215 -30%
Cerity Partners
250
Cerity Partners
New York
$2.41M -$32.6K -318 -1%