Ameren's top three insider shareholders as of March 23, 2026 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 |
|---|---|---|---|---|
| Martin J Lyons | Chairman, President Ceo | 282,681 | 0 | 03 Mar, 2026 |
| Michael L Moehn | Group President, Utilities | 211,525 | 0 | 03 Mar, 2026 |
| Warner L Baxter | Executive Chairman | 207,272 | 0 | 02 Mar, 2023 |
| Richard J Mark | 144,165 | 0 | 04 Apr, 2022 | |
| Mark C Birk | 108,339 | 0 | 04 Mar, 2025 | |
| Mary P Heger | 74,457 | 0 | 02 Mar, 2022 | |
| Fadi M Diya | 65,799 | 0 | 04 Mar, 2025 | |
| James C Johnson | 60,196 | 0 | 07 Jan, 2025 | |
| Shawn E Schukar | 56,830 | 0 | 03 Mar, 2026 | |
| Ellen M Fitzsimmons | 53,026 | 0 | 07 Jan, 2026 | |
| Mark C Lindgren | 44,983 | 0 | 03 Mar, 2026 | |
| Chonda J Nwamu | Executive Vice President | 43,344 | 0 | 04 Mar, 2025 |
| Bhavani Amirthalingam | 39,622 | 0 | 04 Mar, 2024 | |
| Steven H Lipstein | 37,862 | 0 | 07 Jan, 2026 | |
| Theresa A Shaw | Svp And Cato | 34,397 | 0 | 03 Mar, 2026 |
| Leonard P Singh | 32,776 | 0 | 03 Mar, 2026 | |
| Catherine S Brune | 26,628 | 0 | 06 Mar, 2026 | |
| Ryan J Martin | Svp Finance | 26,479 | 0 | 06 Mar, 2026 |
| J Edward Coleman | 23,252 | 0 | 05 Jan, 2024 | |
| Richard J Harshman | 22,135 | 0 | 07 Jan, 2026 | |
| Ajay K Arora | Svp Of Subsidiary | 0 | 21,037 | 19 Feb, 2026 |
| Patrick E Smith | Chairman President Of Sub | 19,910 | 0 | 03 Mar, 2026 |
| Ward H. Dickson | 18,946 | 0 | 07 Jan, 2026 | |
| Noelle K Eder | 16,609 | 0 | 07 Jan, 2025 | |
| Craig S Ivey | 16,597 | 0 | 07 Jan, 2026 | |
| Ajay K Arora | Svp Of Subsidiary | 15,499 | 0 | 03 Mar, 2026 |
| Eric V Seidler | Svp Of Subsidiary | 14,041 | 0 | 03 Mar, 2026 |
| Rafael Flores | 13,953 | 0 | 19 Feb, 2026 | |
| Cynthia J Brinkley | 13,494 | 0 | 07 Jan, 2026 | |
| Leo S. Jr. Mackay | 11,834 | 0 | 07 Jan, 2026 | |
| David Matthew Feinberg | Evp, Gc Secretary | 8,260 | 0 | 09 Feb, 2026 |
| Gwendolyn G Mizell | 6,324 | 0 | 03 Mar, 2026 | |
| Stephen C Lee | Vp, Interim Gc Secretary | 5,704 | 0 | 04 Mar, 2025 |
| Kimberly J Harris | 3,939 | 0 | 07 Jan, 2025 | |
| Steven O Vondran | 3,597 | 0 | 07 Jan, 2026 | |
| Jamie L Engstrom | 1,686 | 0 | 07 Jan, 2026 | |
| Timothy S. Rausch | 1,251 | 0 | 03 Mar, 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 |
| 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 | Shawn E Schukar | Common Stock, $.01 Par Value | D | 3,148 | $113.28 | 61,805 | 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 | Ryan J Martin | Common Stock, $.01 Par Value | D | 726 | $113.28 | 27,779 | 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 | Leonard P Singh | Common Stock, $.01 Par Value | D | 5,478 | $113.28 | 32,776 | 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 |
| 27 Feb, 2026 | Eric V Seidler | Common Stock, $.01 Par Value | D | 982 | $113.28 | 14,041 | D | F |
| 27 Feb, 2026 | Gwendolyn G Mizell | Common Stock, $.01 Par Value | D | 943 | $113.28 | 6,324 | D | F |
| 03 Mar, 2026 | Mark C Lindgren | Common Stock, $.01 Par Value | D | 2,073 | $111.84 | 44,983 | D | S |
| 27 Feb, 2026 | Ajay K Arora | Common Stock, $.01 Par Value | D | 1,035 | $113.28 | 15,499 | D | F |
| 03 Mar, 2026 | Martin J Lyons | Common Stock, $.01 Par Value | D | 26,818 | $111.84 | 282,681 | D | S |
| 27 Feb, 2026 | Patrick E Smith | Common Stock, $.01 Par Value | D | 910 | $113.28 | 19,910 | D | F |
| 03 Mar, 2026 | Shawn E Schukar | Common Stock, $.01 Par Value | D | 4,975 | $111.84 | 56,830 | D | S |
| 17 Feb, 2026 | Rafael Flores | Common Stock, $.01 Par Value | D | 1,600 | $111.52 | 13,953 | D | S |
| 17 Feb, 2026 | Ajay K Arora | Common Stock, $.01 Par Value | D | 3,000 | $111.44 | 21,037 | I | S |
| 17 Feb, 2026 | Gwendolyn G Mizell | Common Stock, $.01 Par Value | D | 3,548 | $110.90 | 7,267 | D | S |