AMEREN CORP
For the period ended Jun 30, 2026. Filed Aug 3, 2026.
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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Jun 30, 2026 · Filed Aug 3, 2026
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
| ☒ | Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the Quarterly Period Ended June 30, 2026 |
|---|
OR
| ☐ | Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934for the transition period from to |
|---|
| CommissionFile Number | Exact name of registrant as specified in its charter;State of Incorporation;Address and Telephone Number | IRS EmployerIdentification No. |
|---|---|---|
| 1-14756 | Ameren Corporation | 43-1723446 |
(Missouri Corporation)
1901 Chouteau Avenue
St. Louis, Missouri 63103
(314) 621-3222
| 1-2967 | Union Electric Company | 43-0559760 |
(Missouri Corporation)
1901 Chouteau Avenue
St. Louis, Missouri 63103
(314) 621-3222
| 1-3672 | Ameren Illinois Company | 37-0211380 |
(Illinois Corporation)
10 Richard Mark Way
Collinsville, Illinois 62234
(618) 343-8150
Securities Registered Pursuant to Section 12(b) of the Act:
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
|---|---|---|
| Common Stock, $0.01 par value per share | AEE | New York Stock Exchange |
Indicate by check mark whether each registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
| Ameren Corporation | Yes | ☒ | No | ☐ |
|---|---|---|---|---|
| Union Electric Company | Yes | ☒ | No | ☐ |
| Ameren Illinois Company | Yes | ☒ | No | ☐ |
Indicate by check mark whether each registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
| Ameren Corporation | Yes | ☒ | No | ☐ |
|---|---|---|---|---|
| Union Electric Company | Yes | ☒ | No | ☐ |
| Ameren Illinois Company | Yes | ☒ | No | ☐ |
Indicate by check mark whether each registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
| Ameren Corporation | Large accelerated filer | ☒ | Accelerated filer | ☐ | Non-accelerated filer | ☐ |
|---|---|---|---|---|---|---|
| Smaller reporting company | ☐ | Emerging growth company | ☐ | |||
| Union Electric Company | Large accelerated filer | ☐ | Accelerated filer | ☐ | Non-accelerated filer | ☒ |
| Smaller reporting company | ☐ | Emerging growth company | ☐ | |||
| Ameren Illinois Company | Large accelerated filer | ☐ | Accelerated filer | ☐ | Non-accelerated filer | ☒ |
| Smaller reporting company | ☐ | Emerging growth company | ☐ | |||
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
| Ameren Corporation | ☐ |
|---|---|
| Union Electric Company | ☐ |
| Ameren Illinois Company | ☐ |
Indicate by check mark whether each registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
| Ameren Corporation | Yes | ☐ | No | ☒ |
|---|---|---|---|---|
| Union Electric Company | Yes | ☐ | No | ☒ |
| Ameren Illinois Company | Yes | ☐ | No | ☒ |
The number of shares outstanding of each registrant’s classes of common stock as of July 30, 2026, was as follows:
| Registrant | Title of each class of common stock | Shares outstanding |
|---|---|---|
| Ameren Corporation | Common stock, $0.01 par value per share | 276,843,251 |
| Union Electric Company | Common stock, $5 par value per share, held by Ameren Corporation | 102,123,834 |
| Ameren Illinois Company | Common stock, no par value, held by Ameren Corporation | 25,452,373 |
This combined Form 10-Q is separately filed by Ameren Corporation, Union Electric Company, and Ameren Illinois Company. Each registrant hereto is filing on its own behalf all of the information contained in this quarterly report that relates to such registrant. Each registrant hereto is not filing any information that does not relate to such registrant, and therefore makes no representation as to any such information.
The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.