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923 hedge funds and large institutions have $25.7B invested in Ameren in 2026 Q1 according to their latest regulatory filings, with 125 funds opening new positions, 372 increasing their positions, 233 reducing their positions, and 61 closing their positions.

New
Increased
Maintained
Reduced
Closed

105% more first-time investments, than exits

New positions opened: 125 | Existing positions closed: 61

60% more repeat investments, than reductions

Existing positions increased: 372 | Existing positions reduced: 233

17% more funds holding in top 10

Funds holding in top 10: 67 (+1)

11% more capital invested

Capital invested by funds: $23.2B → $25.7B (+$2.53B)

5% more funds holding

Funds holding: 879923 (+44)

1.07% less ownership

Funds ownership: 85.71%84.64% (-1.1%)

33% less call options, than puts

Call options by funds: $12.8M | Put options by funds: $19.1M

Holders
923
Holders Change
+44
Holders Change %
+5.01%
% of All Funds
11.37%
Holding in Top 10
7
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+16.67%
% of All Funds
0.09%
New
125
Increased
372
Reduced
233
Closed
61
Calls
$12.8M
Puts
$19.1M
Net Calls
-$6.28M
Net Calls Change
+$6.75M
Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$2.62B +$88.8M +830,186 +4%
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$2.35B -$45.8M -428,198 -2%
VCM
3
Vanguard Capital Management
Pennsylvania
$1.97B +$1.92B +17,925,853 New
VPM
4
Vanguard Portfolio Management
Pennsylvania
$1.74B +$1.69B +15,836,894 New
State Street
5
State Street
Massachusetts
$1.64B +$45.5M +425,663 +3%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$839M +$35.6M +333,082 +5%
T. Rowe Price Investment Management
7
T. Rowe Price Investment Management
Maryland
$828M -$893M -8,351,188 -53%
Ameriprise
8
Ameriprise
Minnesota
$690M -$8.44M -78,921 -1%
Franklin Resources
9
Franklin Resources
California
$625M +$343M +3,209,255 +130%
Janus Henderson Group
10
Janus Henderson Group
United Kingdom
$591M +$59.1M +553,164 +11%
Fidelity Investments
11
Fidelity Investments
Massachusetts
$551M +$8.85M +82,742 +2%
Invesco
12
Invesco
Georgia
$501M -$78.5M -734,341 -14%
AllianceBernstein
13
AllianceBernstein
Tennessee
$347M -$6.46M -60,441 -2%
Goldman Sachs
14
Goldman Sachs
New York
$339M -$46.2M -431,982 -12%
Wells Fargo
15
Wells Fargo
California
$325M -$1.62M -15,153 -0.5%
Morgan Stanley
16
Morgan Stanley
New York
$322M -$10.3M -96,321 -3%
Bessemer Group
17
Bessemer Group
New Jersey
$303M +$1.98M +18,526 +0.7%
Pictet Asset Management
18
Pictet Asset Management
Switzerland
$249M +$29M +270,937 +14%
Bank of America
19
Bank of America
North Carolina
$249M +$14.6M +136,631 +6%
N
20
Nuveen
North Carolina
$247M -$14.9M -139,251 -6%
Northern Trust
21
Northern Trust
Illinois
$239M +$1.13M +10,552 +0.5%
Qube Research & Technologies (QRT)
22
Qube Research & Technologies (QRT)
United Kingdom
$230M +$182M +1,701,737 +433%
Legal & General Group
23
Legal & General Group
United Kingdom
$214M -$3.19M -29,793 -2%
Massachusetts Financial Services
24
Massachusetts Financial Services
Massachusetts
$204M +$14.4M +134,501 +8%
Charles Schwab
25
Charles Schwab
California
$201M +$7.93M +74,191 +4%