ALLETE, Inc. Form 424B7: Prospectus (Rule 424(b)(7))
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2017-02-16: Form 424B7; Description 424B7 PENSION PRO SUPP; Document a424b7-pensionprospectussu.htm.
- 2014-02-18: Form 424B7; Description 424B7; Document a424b7-pensionprospectussu.htm.
- 2012-02-17: Form 424B7; Description PROSPECTUS SUPPLEMENT; Document a424b7prospectussupplement.htm.
- 2009-05-19: Form 424B7; Description PROSPECTUS SUPPLEMENT; Document prospectus_supplement.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2017-02-16 | 424B7 | 424B7 PENSION PRO SUPP | a424b7-pensionprospectussu.htm | |
| 2014-02-18 | 424B7 | 424B7 | a424b7-pensionprospectussu.htm | |
| 2012-02-17 | 424B7 | PROSPECTUS SUPPLEMENT | a424b7prospectussupplement.htm | |
| 2009-05-19 | 424B7 | PROSPECTUS SUPPLEMENT | prospectus_supplement.htm |