As of June 06, 2026, Ameren's top three insider holders are Martin J Lyons (Chairman, President Ceo, 282.68K shares), Michael L Moehn (Group President, Utilities, 211.53K shares), Warner L Baxter (Executive Chairman, 207.27K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Kimberly J Harris | - | 3,939 | 0 | 07 Jan, 2025 |
| Warner L Baxter | Executive Chairman | 207,272 | 0 | 02 Mar, 2023 |
| Martin J Lyons | Chairman, President Ceo | 282,681 | 0 | 03 Mar, 2026 |
| Richard J Mark | Senior Vp Of Subsidiary | 144,165 | 0 | 04 Apr, 2022 |
| Michael L Moehn | Group President, Utilities | 211,525 | 0 | 03 Mar, 2026 |
| Catherine S Brune | - | 26,628 | 0 | 06 Mar, 2026 |
| Richard J Harshman | - | 22,135 | 0 | 07 Jan, 2026 |
| Ellen M Fitzsimmons | - | 53,026 | 0 | 07 Jan, 2026 |
| Mark C Birk | - | 108,339 | 0 | 04 Mar, 2025 |
| Cynthia J Brinkley | - | 13,494 | 0 | 07 Jan, 2026 |
| Shawn E Schukar | - | 56,830 | 0 | 03 Mar, 2026 |
| James C Johnson | - | 60,196 | 0 | 07 Jan, 2025 |
| Craig S Ivey | - | 16,597 | 0 | 07 Jan, 2026 |
| David Matthew Feinberg | Evp, Gc Secretary | 8,260 | 0 | 09 Feb, 2026 |
| J Edward Coleman | - | 23,252 | 0 | 05 Jan, 2024 |
| Steven H Lipstein | - | 37,862 | 0 | 07 Jan, 2026 |
| Leo S. Jr. Mackay | - | 11,834 | 0 | 07 Jan, 2026 |
| Ward H. Dickson | - | 18,946 | 0 | 07 Jan, 2026 |
| Fadi M Diya | - | 65,799 | 0 | 04 Mar, 2025 |
| Mark C Lindgren | - | 44,983 | 0 | 03 Mar, 2026 |
| Mary P Heger | - | 74,457 | 0 | 02 Mar, 2022 |
| Timothy S. Rausch | - | 1,251 | 0 | 03 Mar, 2026 |
| Rafael Flores | - | 13,953 | 0 | 19 Feb, 2026 |
| Noelle K Eder | - | 16,609 | 0 | 07 Jan, 2025 |
| Bhavani Amirthalingam | Svp Cdio Of Subsidiary | 39,622 | 0 | 04 Mar, 2024 |
| Steven O Vondran | - | 3,597 | 0 | 07 Jan, 2026 |
| Chonda J Nwamu | Executive Vice President | 43,344 | 0 | 04 Mar, 2025 |
| Gwendolyn G Mizell | - | 6,324 | 0 | 03 Mar, 2026 |
| Theresa A Shaw | Svp And Cato | 34,397 | 0 | 03 Mar, 2026 |
| Leonard P Singh | - | 32,776 | 0 | 03 Mar, 2026 |
| Stephen C Lee | Vp, Interim Gc Secretary | 5,704 | 0 | 04 Mar, 2025 |
| Ajay K Arora | Svp Of Subsidiary | 0 | 21,037 | 19 Feb, 2026 |
| Ryan J Martin | Svp Finance | 26,479 | 0 | 06 Mar, 2026 |
| Eric V Seidler | Svp Of Subsidiary | 14,041 | 0 | 03 Mar, 2026 |
| Patrick E Smith | Chairman President Of Sub | 19,910 | 0 | 03 Mar, 2026 |
| Jamie L Engstrom | - | 1,686 | 0 | 07 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 05 Mar, 2026 | Catherine S Brune | Common Stock, $.01 Par Value | D | 450 | $0.00 | 26,628 | D | G |
| 05 Mar, 2026 | Catherine S Brune | Common Stock, $.01 Par Value | D | 450 | $0.00 | 26,628 | D | G |
| 04 Mar, 2026 | Ryan J Martin | Common Stock, $.01 Par Value | D | 1,300 | $113.31 | 26,479 | D | S |
| 04 Mar, 2026 | Ryan J Martin | Common Stock, $.01 Par Value | D | 1,300 | $113.31 | 26,479 | D | S |
| 01 Mar, 2026 | Timothy S. Rausch | Common Stock, $.01 Par Value | A | 1,251 | $0.00 | 1,251 | D | A |
| 27 Feb, 2026 | Leonard P Singh | Common Stock, $.01 Par Value | D | 5,478 | $113.28 | 32,776 | D | F |
| 27 Feb, 2026 | Mark C Lindgren | Common Stock, $.01 Par Value | D | 2,054 | $113.28 | 47,046 | D | F |
| 27 Feb, 2026 | Shawn E Schukar | Common Stock, $.01 Par Value | D | 3,148 | $113.28 | 61,805 | D | F |
| 27 Feb, 2026 | Ryan J Martin | Common Stock, $.01 Par Value | D | 726 | $113.28 | 27,779 | D | F |
| 27 Feb, 2026 | Martin J Lyons | Common Stock, $.01 Par Value | D | 28,154 | $113.28 | 309,499 | D | F |
| 27 Feb, 2026 | Leonard P Singh | Common Stock, $.01 Par Value | D | 5,478 | $113.28 | 32,776 | D | F |
| 27 Feb, 2026 | Gwendolyn G Mizell | Common Stock, $.01 Par Value | D | 943 | $113.28 | 6,324 | D | F |
| 27 Feb, 2026 | Shawn E Schukar | Common Stock, $.01 Par Value | D | 3,148 | $113.28 | 61,805 | D | F |
| 27 Feb, 2026 | Michael L Moehn | Common Stock, $.01 Par Value | D | 14,355 | $113.28 | 211,525 | D | F |
| 27 Feb, 2026 | Michael L Moehn | Common Stock, $.01 Par Value | D | 14,355 | $113.28 | 211,525 | D | F |
| 27 Feb, 2026 | Mark C Lindgren | Common Stock, $.01 Par Value | D | 2,054 | $113.28 | 47,046 | D | F |
| 27 Feb, 2026 | Eric V Seidler | Common Stock, $.01 Par Value | D | 982 | $113.28 | 14,041 | D | F |
| 27 Feb, 2026 | Theresa A Shaw | Common Stock, $.01 Par Value | D | 1,296 | $113.28 | 34,397 | D | F |
| 27 Feb, 2026 | Martin J Lyons | Common Stock, $.01 Par Value | D | 28,154 | $113.28 | 309,499 | D | F |
| 27 Feb, 2026 | Theresa A Shaw | Common Stock, $.01 Par Value | D | 1,296 | $113.28 | 34,397 | D | F |