Ameren Corp
AEE- Exchange
- NYSE
- Industry
- Electric & Other Services Combined
- SEC CIK
- 0001002910
In the last 90 days, Ameren Corp insiders filed 0 open-market purchases and 4 sales; 956 institutions reported holding it in 13F filings for Q2 2026, worth $27.7B in total; no superinvestor holds it.
Holders of 5% or more of AEE
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Ameren Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 8.10%21.9M shares | – | Jan 21, 20261 filing | Jan 21, 2026 | SEC |
| Price T Rowe Associates Inc | 13G/A | 8.10%21.8M shares | – | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 7.53%20.8M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.74%15.9M shares | New | Apr 28, 20261 filing | Apr 28, 2026 | SEC |
| State Street Corp | 13G | 5.20%14.0M shares | New | Nov 10, 20251 filing | Nov 10, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on Ameren Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 202610:06 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 2.70%7.52M shares | −2.50 ppfrom 5.20%Below 5% | Mar 31, 2026 | SEC |
| Apr 29, 20264:41 PM ET | Vanguard Capital Management LLC | 13G | 7.53%20.8M shares | New | Mar 31, 2026 | SEC |
| Apr 28, 20264:06 PM ET | Vanguard Portfolio Management LLC | 13G | 5.74%15.9M shares | New | Mar 31, 2026 | SEC |
| Mar 26, 20263:26 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 17, 202610:26 AM ET | Price T Rowe Associates Inc | 13G/A | 8.10%21.8M shares | – | Dec 31, 2025 | SEC |
| Jan 21, 202612:30 PM ET | BlackRock, Inc. | 13G/A | 8.10%21.9M shares | – | Dec 31, 2025 | SEC |
| Nov 10, 20258:14 AM ET | State Street Corp | 13G | 5.20%14.0M shares | New | Sep 30, 2025 | SEC |
| Aug 14, 202512:12 PM ET | T. Rowe Price Investment Management, Inc. | 13G | 5.20%14.4M shares | +0.40 ppfrom 4.80% | Jun 30, 2025 | SEC |
| May 14, 202510:47 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 4.80%13.0M shares | –Below 5% | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Ameren Corp shares.
No Form 144 notices for Ameren Corp are on file.