# Ameren Illinois Co: filings

AILIH · OTC · CIK 18654 · [Utilities](/sectors/utilities.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/ailih.md) · [Financials](/companies/ailih/financials.md) · [Filings](/companies/ailih/filings.md) · [Insiders](/companies/ailih/insiders.md)

## Reports and events: 138 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (8-K 67, 10-Q 53, 424B3 21, 424B2 20, FWP 20, 10-K 18, DEF 14C 18, DEFA14C 11, UPLOAD 8, 3 6, S-3ASR 6, SC 13G/A 5, 425 2, ARS 2, S-4/A 2, 5 1, EFFECT 1, S-4 1, SC 13G 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-24 | 13:17 ET | [8-K](/filings/0001104659-26-100236.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-100236 |
| 2026-08-03 | 14:13 ET | [10-Q](/filings/0001002910-26-000023.md) | Quarterly report, period 2026-06-30 | 0001002910-26-000023 |
| 2026-05-18 | 16:05 ET | [8-K](/filings/0001104659-26-063184.md) | 5.07 Shareholder vote results | 0001104659-26-063184 |
| 2026-05-08 | 19:24 ET | [10-Q](/filings/0001002910-26-000015.md) | Quarterly report, period 2026-03-31 | 0001002910-26-000015 |
| 2026-02-18 | 16:15 ET | [10-K](/filings/0001002910-26-000009.md) | Annual report, period 2025-12-31 | 0001002910-26-000009 |
| 2025-12-10 | 16:06 ET | [8-K](/filings/0001104659-25-119977.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001104659-25-119977 |
| 2025-11-06 | 12:34 ET | [10-Q](/filings/0001002910-25-000129.md) | Quarterly report, period 2025-09-30 | 0001002910-25-000129 |
| 2025-09-26 | 14:28 ET | [8-K](/filings/0001104659-25-093779.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-093779 |
| 2025-08-04 | 14:48 ET | [10-Q](/filings/0001002910-25-000112.md) | Quarterly report, period 2025-06-30 | 0001002910-25-000112 |
| 2025-05-12 | 06:15 ET | [8-K](/filings/0001104659-25-046956.md) | 5.07 Shareholder vote results | 0001104659-25-046956 |
| 2025-05-05 | 15:40 ET | [10-Q](/filings/0001002910-25-000098.md) | Quarterly report, period 2025-03-31 | 0001002910-25-000098 |
| 2025-03-03 | 12:53 ET | [8-K](/filings/0001104659-25-019676.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-019676 |
| 2025-02-18 | 16:09 ET | [10-K](/filings/0001002910-25-000055.md) | Annual report, period 2024-12-31 | 0001002910-25-000055 |
| 2024-12-20 | 09:50 ET | [8-K](/filings/0001104659-24-130545.md) | 8.01 Other events | 0001104659-24-130545 |
| 2024-11-07 | 17:10 ET | [10-Q](/filings/0001002910-24-000111.md) | Quarterly report, period 2024-09-30 | 0001002910-24-000111 |
| 2024-08-05 | 17:10 ET | [10-Q](/filings/0001002910-24-000101.md) | Quarterly report, period 2024-06-30 | 0001002910-24-000101 |
| 2024-06-27 | 11:25 ET | [8-K](/filings/0001104659-24-075482.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-24-075482 |
| 2024-06-21 | 09:23 ET | [8-K](/filings/0001104659-24-073784.md) | 8.01 Other events | 0001104659-24-073784 |
| 2024-05-13 | 16:36 ET | [8-K](/filings/0001104659-24-060607.md) | 5.07 Shareholder vote results | 0001104659-24-060607 |
| 2024-05-06 | 15:27 ET | [10-Q](/filings/0001002910-24-000090.md) | Quarterly report, period 2024-03-31 | 0001002910-24-000090 |
| 2024-02-29 | 14:48 ET | [10-K](/filings/0001002910-24-000056.md) | Annual report, period 2023-12-31 | 0001002910-24-000056 |
| 2023-12-18 | 06:04 ET | [8-K](/filings/0001104659-23-126540.md) | 8.01 Other events | 0001104659-23-126540 |
| 2023-11-21 | 06:02 ET | [8-K](/filings/0001104659-23-120035.md) | 8.01 Other events | 0001104659-23-120035 |
| 2023-11-09 | 16:56 ET | [10-Q](/filings/0001002910-23-000112.md) | Quarterly report, period 2023-09-30 | 0001002910-23-000112 |
| 2023-08-03 | 17:20 ET | [10-Q](/filings/0001002910-23-000102.md) | Quarterly report, period 2023-06-30 | 0001002910-23-000102 |
| 2023-05-31 | 11:09 ET | [8-K](/filings/0001104659-23-066428.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-23-066428 |
| 2023-05-12 | 17:24 ET | [8-K](/filings/0001104659-23-059889.md) | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-23-059889 |
| 2023-05-05 | 15:50 ET | [10-Q](/filings/0001002910-23-000090.md) | Quarterly report, period 2023-03-31 | 0001002910-23-000090 |
| 2023-02-22 | 20:28 ET | [10-K](/filings/0001002910-23-000053.md) | Annual report, period 2022-12-31 | 0001002910-23-000053 |
| 2023-01-23 | 08:30 ET | [8-K](/filings/0001104659-23-005601.md) | 8.01 Other events | 0001104659-23-005601 |
| 2023-01-09 | 17:04 ET | [8-K](/filings/0001104659-23-002326.md) | 8.01 Other events | 0001104659-23-002326 |
| 2022-12-06 | 17:03 ET | [8-K](/filings/0001104659-22-124929.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001104659-22-124929 |
| 2022-11-22 | 12:57 ET | [8-K](/filings/0001104659-22-121129.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-22-121129 |
| 2022-11-04 | 17:17 ET | [10-Q](/filings/0001002910-22-000087.md) | Quarterly report, period 2022-09-30 | 0001002910-22-000087 |
| 2022-08-29 | 13:51 ET | [8-K](/filings/0001104659-22-095574.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-22-095574 |
| 2022-08-08 | 18:53 ET | [10-Q](/filings/0001002910-22-000072.md) | Quarterly report, period 2022-06-30 | 0001002910-22-000072 |
| 2022-05-13 | 17:21 ET | [8-K](/filings/0001104659-22-060492.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001104659-22-060492 |
| 2022-05-06 | 16:07 ET | [10-Q](/filings/0001002910-22-000061.md) | Quarterly report, period 2022-03-31 | 0001002910-22-000061 |
| 2022-02-23 | 18:43 ET | [10-K](/filings/0001002910-22-000038.md) | Annual report, period 2021-12-31 | 0001002910-22-000038 |
| 2021-11-04 | 17:24 ET | [10-Q](/filings/0001002910-21-000113.md) | Quarterly report, period 2021-09-30 | 0001002910-21-000113 |
| 2021-09-13 | 17:13 ET | [8-K](/filings/0001193125-21-271647.md) | 8.01 Other events | 0001193125-21-271647 |
| 2021-08-06 | 17:20 ET | [10-Q](/filings/0001002910-21-000103.md) | Quarterly report, period 2021-06-30 | 0001002910-21-000103 |
| 2021-06-29 | 10:07 ET | [8-K](/filings/0001104659-21-086615.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-21-086615 |
| 2021-05-10 | 16:33 ET | [10-Q](/filings/0001002910-21-000094.md) | Quarterly report, period 2021-03-31 | 0001002910-21-000094 |
| 2021-05-10 | 17:50 ET | [8-K](/filings/0001193125-21-155146.md) | 5.07 Shareholder vote results | 0001193125-21-155146 |
| 2021-02-22 | 17:22 ET | [10-K](/filings/0001002910-21-000065.md) | Annual report, period 2020-12-31 | 0001002910-21-000065 |
| 2020-11-23 | 10:12 ET | [8-K](/filings/0001193125-20-300710.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-20-300710 |
| 2020-11-05 | 16:23 ET | [10-Q](/filings/0001002910-20-000138.md) | Quarterly report, period 2020-09-30 | 0001002910-20-000138 |
| 2020-08-07 | 17:46 ET | [10-Q](/filings/0001002910-20-000128.md) | Quarterly report, period 2020-06-30 | 0001002910-20-000128 |
| 2020-05-11 | 16:42 ET | [10-Q](/filings/0001002910-20-000115.md) | Quarterly report, period 2020-03-31 | 0001002910-20-000115 |

Page 1 of 3. [Older](/companies/ailih/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:51 ET. No prices; not investment advice.