| Date Filed | Type | Description | Filer | View |
| 05/17/99 | U-57 | Notification of Foreign Utility Company Status 33(a)(2) of the Public Utility Company Act | |  |
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| 05/17/99 | U-57 | Notification of Foreign Utility Company Status 33(a)(2) of the Public Utility Company Act | |  |
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| 05/17/99 | 10-Q | Quarterly report which provides a continuing view of a company's financial position | |  |
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| 05/13/99 | 35-CERT | Certificate, terms and conditions Rule 24 of the Public Utility Holding Company Act | |  |
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| 04/20/99 | U-1/A | Amendment to a previously filed U-1 | |  |
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| 04/05/99 | SC 13D/A | An amendment to a SC 13D filing | ALLIANT ENERGY CORP |  |
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| 03/31/99 | 10-K | Annual report which provides a comprehensive overview of the company for the past year | |  |
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| 03/29/99 | DEF 14A | Official notification to shareholders of matters to be brought to a vote ("Proxy") | |  |
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| 03/15/99 | 35-CERT | Certificate, terms and conditions Rule 24 of the Public Utility Holding Company Act | |  |
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| 02/23/99 | 35-CERT | Certificate, terms and conditions Rule 24 of the Public Utility Holding Company Act | |  |
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