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
S-3

Simplified registration form

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10-Q/A

Amendment to a previously filed 10-Q

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10-Q/A

Amendment to a previously filed 10-Q

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10-Q/A

Amendment to a previously filed 10-Q

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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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10-Q/A

Amendment to a previously filed 10-Q

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10-Q/A

Amendment to a previously filed 10-Q

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8-K/A

Amendment to a previously filed 8-K

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