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
3

Initial filing by director officer or owner of more than ten percent.

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3

Initial filing by director officer or owner of more than ten percent.

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FWP

FWP

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424B3

Form of prospectus reflecting facts events constituting substantive change from last form

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424B3

Form of prospectus reflecting facts events constituting substantive change from last form

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424B3

Form of prospectus reflecting facts events constituting substantive change from last form

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424B3

Form of prospectus reflecting facts events constituting substantive change from last form

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424B3

Form of prospectus reflecting facts events constituting substantive change from last form

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424B3

Form of prospectus reflecting facts events constituting substantive change from last form

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424B3

Form of prospectus reflecting facts events constituting substantive change from last form

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