ALLETE has entered an agreement to be acquired by a partnership led by Canada Pension Plan Investment Board and Global Infrastructure Partners and start the process to become a private company. Learn more at www.ALLETEforward.com.

SEC Filings

Filing date Form Description View
424B5

Form of prospectus disclosing information, facts, events covered in both forms 424B2, 424B3

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DEF 14A

Official notification to shareholders of matters to be brought to a vote ("Proxy")

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DEFA14A

Additional proxy soliciting materials - definitive

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8-K

Report of unscheduled material events or corporate event

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8-K

Report of unscheduled material events or corporate event

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10-K

Annual report which provides a comprehensive overview of the company for the past year

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S-3ASR

S-3ASR

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4

Statement of changes in beneficial ownership of securities

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4

Statement of changes in beneficial ownership of securities

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4

Statement of changes in beneficial ownership of securities

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