Ameren
Regulated power, gas, and transmission utility serving Missouri and Illinois.
$105.85
After-hours close−0.26 (−0.25%)
At close$106.11(−0.60%)
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Breakdown13F · Form 4
Institutions 102.24%Insiders 0.44%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 276.75M · Float 275.48M · 99.5% free float
Institutions13F, as of Jun 30, 2026
960 holders · 282.95M shares · 113 new positions · 514 increased · 246 reduced · 90 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 25.82M | 9.33% | +2.02M | Aug 7, 2026 |
| Price T Rowe Associates Inc /MD/ | 20.64M | 7.46% | −724.9K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 18.05M | 6.52% | +125.0K | Aug 13, 2026 |
| Vanguard Portfolio Management LLC | 16.01M | 5.79% | +174.9K | Aug 13, 2026 |
| State Street Corp | 15.17M | 5.48% | +242.2K | Aug 7, 2026 |
| T. Rowe Price Investment Management, Inc. | 12.13M | 4.38% | +4.60M | Aug 14, 2026 |
| Geode Capital Management, LLC | 7.82M | 2.83% | +162.6K | Aug 12, 2026 |
| Franklin Resources Inc | 6.10M | 2.20% | +416.8K | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| T. Rowe Price Associates, Inc. | 8.10% | 21.79M | 13G | Feb 17, 2026 ↗ |
| BlackRock, Inc. | 8.10% | 21.88M | 13G | Jan 21, 2026 ↗ |
| Vanguard Capital Management | 7.53% | 20.83M | 13G | Apr 29, 2026 ↗ |
| Vanguard Portfolio Management | 5.74% | 15.87M | 13G | Apr 28, 2026 ↗ |
| State Street Corporation | 5.20% | 14.05M | 13G | Nov 10, 2025 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Martin J. Lyons | director, officer: Chairman, President & CEO | 282.7K | 0.10% | Mar 3, 2026 |
| Michael L. Moehn | officer: Group President, Utilities | 199.7K | 0.07% | Aug 5, 2026 |
| Mark C. Birk | other: Chmn & President of Subsidiary | 108.3K | 0.04% | Mar 4, 2025 |
| Fadi M. Diya | other: SVP & CNO of Subsidiary | 65.8K | 0.02% | Mar 4, 2025 |
| Shawn E. Schukar | other: Chmn & President of Subsidiary | 56.8K | 0.02% | Mar 3, 2026 |
| Ellen M. Fitzsimmons | director | 53.0K | 0.02% | Jan 7, 2026 |
| Mark C. Lindgren | other: EVP & Chief HR Officer of Sub | 45.0K | 0.02% | Mar 3, 2026 |
| Ajay K. Arora | officer: EVP of Subsidiary | 44.2K | 0.02% | Jul 6, 2026 |
| Chonda J. Nwamu | officer: Executive Vice President | 43.3K | 0.02% | Mar 4, 2025 |
| Steven H. Lipstein | director | 37.9K | 0.01% | Jan 7, 2026 |
8 ten-percent owners hold 295.5K shares by Form 4, outside the officers-and-directors figure above · 36 people have not refiled in the last 18 months (1.11M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 20, 2026 | Ryan J. Martinofficer: SVP Finance | Sale | 500 | $109.88 | 25,595 |
| Aug 18, 2026 | Ryan J. Martinofficer: SVP Finance | Sale | 471 | $109.87 | 26,008 |
| Aug 14, 2026 | Theresa A. Shawofficer: SVP and CATO | Sale | 325 | $108.93 | 32,340 |
| Aug 3, 2026 | Michael L. Moehnofficer: Group President, Utilities | Sale | 6,500 | $108.96 | 199,689 |
| May 14, 2026 | Theresa A. Shawofficer: SVP and CATO | Sale | 325 | $109.08 | 32,618 |
| May 12, 2026 | Theresa A. Shawofficer: SVP and CATO | Sale | 1,500 | $109.35 | 32,943 |
| May 1, 2026 | Michael L. Moehnofficer: Group President, Utilities | Sale | 6,500 | $113.63 | 205,598 |
| Mar 4, 2026 | Ryan J. Martinofficer: SVP Finance | Sale | 1,300 | $113.31 | 26,479 |
| Mar 3, 2026 | Mark C. Lindgrenother: EVP & Chief HR Officer of Sub | Sale | 2,073 | $111.84 | 44,983 |
| Mar 3, 2026 | Shawn E. Schukarother: Chmn & President of Subsidiary | Sale | 4,975 | $111.84 | 56,830 |
CongressHouse and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. Julie Johnson · TX32 | Purchase | $1,001 – $15,000 | Joint | Sep 23, 2025 | Aug 6, 2026 ↗ |