AEE Ameren Corp.
Ameren Corp. (AEE) Institutional Ownership
What the institutions did with AEE last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BARCLAYS PLC | 2.5M | 12.7% |
| Pictet Asset Management Holding SA | 2.4M | 12.1% |
| Bank of New York Mellon Corp | 1.5M | 7.6% |
| ANTIPODES PARTNERS Ltd | 1.3M | 6.9% |
| DIMENSIONAL FUND ADVISORS LP | 1.2M | 6.3% |
| Mitsubishi UFJ Asset Management Co., Ltd. | 735.2K | 3.8% |
| Sumitomo Mitsui Trust Group, Inc. | 639.7K | 3.3% |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 617.3K | 3.2% |
| UniSuper Management Pty Ltd | 553.0K | 2.9% |
| Assenagon Asset Management S.A. | 437.9K | 2.3% |
| CITIGROUP INC | 411.5K | 2.1% |
| CHILTON CAPITAL MANAGEMENT LLC | 318.4K | 1.6% |
| PRINCIPAL FINANCIAL GROUP INC | 297.6K | 1.5% |
| Creative Planning | 296.6K | 1.5% |
| GATEWAY INVESTMENT ADVISERS LLC | 289.3K | 1.5% |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | 209.4K | 1.1% |
| CIBC Asset Management Inc | 193.4K | 1.0% |
| BRAUN STACEY ASSOCIATES INC | 189.5K | 1.0% |
| Asset Management One Co., Ltd. | 169.4K | 0.9% |
| Allspring Global Investments Holdings, LLC | 164.3K | 0.8% |
| Stack Financial Management, Inc | 154.1K | 0.8% |
| MILLER HOWARD INVESTMENTS INC /NY | 149.3K | 0.8% |
| ADAMS DIVERSIFIED EQUITY FUND, INC. | 146.2K | 0.8% |
| DekaBank Deutsche Girozentrale | 142.2K | 0.7% |
| FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND | 124.1K | 0.6% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Assenagon Asset Management S.A. | Increased | 205.4K | 437.9K | +232.5K |
| NATIXIS | Sold Out | 185.0K | 0 | -185.0K |
| BARCLAYS PLC | Reduced | 2.6M | 2.5M | -116.2K |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | Increased | 503.2K | 617.3K | +114.1K |
| FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND | Increased | 22.9K | 124.1K | +101.3K |
| DekaBank Deutsche Girozentrale | Increased | 41.5K | 142.2K | +100.7K |
| CITIGROUP INC | Reduced | 491.4K | 411.5K | -79.9K |
| Mitsubishi UFJ Asset Management Co., Ltd. | Increased | 666.4K | 735.2K | +68.8K |
| BI Asset Management Fondsmaeglerselskab A/S | Reduced | 81.2K | 16.7K | -64.5K |
| Pictet Asset Management Holding SA | Reduced | 2.4M | 2.4M | -62.4K |
| ANTIPODES PARTNERS Ltd | Increased | 1.3M | 1.3M | +60.9K |
| Robeco Institutional Asset Management B.V. | Reduced | 135.6K | 77.7K | -57.9K |
| CIBC Asset Management Inc | Reduced | 245.0K | 193.4K | -51.7K |
| Cambridge Investment Research Advisors, Inc. | Reduced | 99.2K | 49.4K | -49.9K |
| Rakuten Investment Management, Inc. | New | 0 | 49.7K | +49.7K |
| MILLER HOWARD INVESTMENTS INC /NY | Increased | 105.1K | 149.3K | +44.2K |
| SteelPeak Wealth, LLC | Sold Out | 32.3K | 0 | -32.3K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.2M | 1.2M | +31.2K |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 327.4K | 297.6K | -29.8K |
| Creative Planning | Increased | 269.3K | 296.6K | +27.3K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 24.4K | +24.4K |
| LEGACY FINANCIAL INDEPENDENT ADVISORS LLC | Reduced | 33.5K | 9.2K | -24.3K |
| Bank of New York Mellon Corp | Reduced | 1.5M | 1.5M | -22.9K |
| Empire Life Investments Inc. | Reduced | 141.2K | 118.9K | -22.3K |
| VCI Wealth Management LLC | Sold Out | 20.5K | 0 | -20.5K |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | Reduced | 227.0K | 209.4K | -17.6K |
| Illinois Municipal Retirement Fund | Reduced | 60.4K | 44.9K | -15.5K |
| ABC ARBITRAGE SA | Sold Out | 14.9K | 0 | -14.9K |
| Machina Capital S.A.S. | Reduced | 33.9K | 20.5K | -13.4K |
| Sumitomo Mitsui Trust Group, Inc. | Reduced | 652.2K | 639.7K | -12.5K |
| Friedenthal Financial | New | 0 | 11.3K | +11.3K |
| CHILTON CAPITAL MANAGEMENT LLC | Increased | 308.1K | 318.4K | +10.4K |
| State of Alaska, Department of Revenue | Increased | 32.3K | 42.4K | +10.1K |
| Oak Thistle LLC | Sold Out | 9.2K | 0 | -9.2K |
| FIRST CITIZENS BANK & TRUST CO | Increased | 2.1K | 11.1K | +9.0K |
| Mirae Asset Global Investments Co., Ltd. | Increased | 61.2K | 70.1K | +8.9K |
| PensionDanmark Pensionsforsikringsaktieselskab | Reduced | 16.6K | 7.8K | -8.7K |
| Krilogy Financial LLC | Reduced | 77.9K | 70.4K | -7.4K |
| CAMBRIDGE CAPITAL MANAGEMENT, LLC | Sold Out | 7.3K | 0 | -7.3K |
| KESTRA PRIVATE WEALTH SERVICES, LLC | Reduced | 13.8K | 6.7K | -7.1K |
| PNC Financial Services Group, Inc. | Reduced | 67.1K | 60.1K | -6.9K |
| Savant Capital, LLC | Increased | 10.8K | 17.7K | +6.9K |
| Avanza Fonder AB | Increased | 1.2K | 8.1K | +6.9K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | Increased | 10.9K | 17.3K | +6.4K |
| Harrison Street Private Wealth LLC | Increased | 21.6K | 27.8K | +6.3K |
| Marks Group Wealth Management, Inc | Increased | 12.7K | 18.7K | +6.0K |
| T3 Companies, LLC | New | 0 | 6.0K | +6.0K |
| NEOS Investment Management LLC | Increased | 45.1K | 50.8K | +5.6K |
| Cynosure Group, LLC | Sold Out | 5.6K | 0 | -5.6K |
| HMS Capital Management, LLC | Increased | 11.3K | 16.9K | +5.6K |
| Prosperitas Financial LLC | Increased | 44.0K | 49.3K | +5.3K |
| Vise Technologies, Inc. | New | 0 | 5.3K | +5.3K |
| ProShare Advisors LLC | Reduced | 57.2K | 52.5K | -4.7K |
| Harel Insurance Investments & Financial Services Ltd. | Increased | 374 | 5.0K | +4.6K |
| NFSG Corp | New | 0 | 4.5K | +4.5K |
| Ethic Inc. | Increased | 44.4K | 48.7K | +4.3K |
| MACKENZIE FINANCIAL CORP | Increased | 35.3K | 39.4K | +4.1K |
| NISA INVESTMENT ADVISORS, LLC | Reduced | 51.1K | 47.1K | -4.1K |
| Allspring Global Investments Holdings, LLC | Reduced | 168.2K | 164.3K | -4.0K |
| MBM WEALTH CONSULTANTS, LLC | Increased | 4.9K | 8.8K | +3.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.