ALLETE has been acquired by a partnership led by Canada Pension Plan Investment Board and Global Infrastructure Partners and is now a private company.

SEC Filings

Filing date Form Description View
DEFA14A Additional proxy soliciting materials - definitive View HTML
DEFA14A Additional proxy soliciting materials - definitive View HTML
DEFA14A Additional proxy soliciting materials - definitive View HTML
ARS An annual report to security holders View HTML
DEF 14A Official notification to shareholders of matters to be brought to a vote ("Proxy") View HTML EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
8-K Report of unscheduled material events or corporate event View HTML EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
10-K Annual report which provides a comprehensive overview of the company for the past year View HTML EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
8-K Report of unscheduled material events or corporate event View HTML EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
8-K/A Amendment to a previously filed 8-K View HTML EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
SC 13G/A An amendment to the SC 13G filing View HTML