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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
Vanguard Group
1
Vanguard Group
Pennsylvania
$3.56B +$50.9M +495,945 +1%
BlackRock
2
BlackRock
New York
$2.29B +$124M +1,211,043 +6%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$2.18B -$703M -6,853,394 -24%
T. Rowe Price Investment Management
4
T. Rowe Price Investment Management
Maryland
$1.59B +$37.1M +362,052 +2%
State Street
5
State Street
Massachusetts
$1.45B +$46.9M +457,876 +3%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$729M -$343K -3,349 -0%
Ameriprise
7
Ameriprise
Minnesota
$634M +$7.07M +68,912 +1%
Invesco
8
Invesco
Georgia
$528M +$15.4M +149,952 +3%
Fidelity Investments
9
Fidelity Investments
Massachusetts
$493M +$9.49M +92,511 +2%
Janus Henderson Group
10
Janus Henderson Group
United Kingdom
$482M +$10.2M +99,671 +2%
AllianceBernstein
11
AllianceBernstein
Tennessee
$353M +$16M +155,835 +5%
Goldman Sachs
12
Goldman Sachs
New York
$351M +$34.3M +334,925 +11%
Morgan Stanley
13
Morgan Stanley
New York
$302M +$13.3M +129,338 +4%
Wells Fargo
14
Wells Fargo
California
$297M -$6.8M -66,312 -2%
Bessemer Group
15
Bessemer Group
New Jersey
$274M -$3.64M -35,511 -1%
Franklin Resources
16
Franklin Resources
California
$247M +$12.6M +123,084 +5%
N
17
Nuveen
North Carolina
$238M +$16.3M +158,599 +7%
Northern Trust
18
Northern Trust
Illinois
$216M -$13.8M -134,577 -6%
Bank of America
19
Bank of America
North Carolina
$213M -$2.37M -23,134 -1%
Pictet Asset Management
20
Pictet Asset Management
Switzerland
$199M -$6.38M -62,235 -3%
Legal & General Group
21
Legal & General Group
United Kingdom
$198M -$14.3M -139,714 -7%
Charles Schwab
22
Charles Schwab
California
$175M +$2.29M +22,360 +1%
Citadel Advisors
23
Citadel Advisors
Florida
$171M +$170M +1,653,667 +2,882%
Massachusetts Financial Services
24
Massachusetts Financial Services
Massachusetts
$169M -$9.75M -95,129 -5%
JP Morgan Chase
25
JP Morgan Chase
New York
$168M -$245M -2,393,600 -59%