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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8-K

Report of unscheduled material events or corporate event

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SC 13G

A statement of beneficial ownership of common stock by certain persons

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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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U-3A-2

Statement by holding company claiming exemption from provisions of the act under Rule 2

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10-K

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

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5/A

Amendment to a previously filed 5

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8-K

Report of unscheduled material events or corporate event

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4

Statement of changes in beneficial ownership of securities

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