Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AEE held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 23.8M | $2.62B | +3.6% | 8.602% | 0.05% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 17.9M | $1.97B | β | 6.480% | 0.05% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 15.8M | $1.74B | β | 5.724% | 0.09% |
| 4 | STATE STREET CORP | 14.9M | $1.64B | +2.9% | 5.396% | 0.06% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 7.7M | $838.8M | +4.5% | 2.768% | 0.05% |
| 6 | AMERIPRISE FINANCIAL INC | 6.3M | $689.6M | -1.2% | 2.268% | 0.16% |
| 7 | FRANKLIN RESOURCES INC | 5.7M | $624.6M | +129.8% | 2.054% | 0.15% |
| 8 | JANUS HENDERSON GROUP PLC | 5.4M | $589.5M | +11.2% | 1.938% | 0.29% |
| 9 | FMR LLC | 5.0M | $551.4M | +1.7% | 1.813% | 0.03% |
| 10 | Invesco Ltd. | 4.6M | $500.8M | -13.9% | 1.647% | 0.08% |
| 11 | ALLIANCEBERNSTEIN L.P. | 3.5M | $346.9M | -1.7% | 1.256% | 0.11% |
| 12 | GOLDMAN SACHS GROUP INC | 3.1M | $339.1M | -19.2% | 1.115% | 0.04% |
| 13 | WELLS FARGO & COMPANY/MN | 3.0M | $325.4M | -0.5% | 1.070% | 0.07% |
| 14 | MORGAN STANLEY | 2.9M | $321.8M | -3.2% | 1.058% | 0.02% |
| 15 | Pictet Asset Management Holding SA | 2.3M | $249.3M | +13.6% | 0.820% | 0.27% |
| 16 | BANK OF AMERICA CORP /DE/ | 2.3M | $249.0M | +6.4% | 0.819% | 0.02% |
| 17 | Nuveen, LLC | 2.2M | $246.8M | -5.8% | 0.812% | 0.07% |
| 18 | NORTHERN TRUST CORP | 2.2M | $239.4M | +0.5% | 0.787% | 0.03% |
| 19 | Qube Research & Technologies Ltd | 2.1M | $230.2M | +433.2% | 0.757% | 0.27% |
| 20 | Legal & General Group Plc | 2.0M | $214.5M | -1.5% | 0.705% | 0.05% |
| 21 | CITADEL ADVISORS LLC | 1.9M | $203.7M | +5.9% | 0.670% | 0.09% |
| 22 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.8M | $203.6M | +8.0% | 0.660% | 0.07% |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.8M | $201.3M | +4.2% | 0.662% | 0.03% |
| 24 | BARCLAYS PLC | 1.6M | $180.0M | +44.3% | 0.592% | 0.07% |
| 25 | AQR CAPITAL MANAGEMENT LLC | 1.6M | $178.4M | +150.8% | 0.587% | 0.08% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in AEE β a direct measure of their conviction.
Filings activity in AEE during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new AEE position in Q1 2026
Institutions that fully closed their AEE position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 911 | +5.6% | 71.84% | +9.46 pp | $21.66B | +15% |
| Q4 2025 | 863 | +8.1% | 62.38% | 0.23 pp | $18.81B | 0.4% |
| Q3 2025 | 798 | +1.1% | 62.61% | +3.90 pp | $18.88B | +6.6% |
| Q2 2025 | 789 | +1.4% | 58.71% | +1.90 pp | $17.70B | +3.3% |
| Q1 2025 | 778 | +8.5% | 56.81% | +5.35 pp | $17.13B | +10% |
| Q4 2024 | 717 | +8.1% | 51.46% | +3.79 pp | $15.52B | +8.0% |
| Q3 2024 | 663 | +3.1% | 47.67% | +7.28 pp | $14.37B | +18% |
| Q2 2024 | 643 | β | 40.39% | β | $12.18B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AEE stock.
Based on Q1 2026 13F filings, institutional ownership of Ameren Corporation stands at 71.8%, held across 911 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AEE, with approximately 23,797,354 shares worth $2.62B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of AEE, including CITADEL ADVISORS LLC.
Our composite Smart Money Score for AEE is 66 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
134 institutions opened new positions in AEE during Q1 2026, while 86 fully exited. 678 added to existing positions and 92 trimmed.
AEE institutional ownership rose by 9.46 percentage points quarter-over-quarter, with a net change of +48 holders.
The top 10 institutions account for 54.3% of all reported 13F value in AEE, and the top 25 account for 71.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Ameren Corporation (AEE) Institutional Ownership