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
424B7

424B7    

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424B2

Form of prospectus filed in connection with primary offering of securities on a delayed basis

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10-K

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

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SC 13G/A

An amendment to the SC 13G filing

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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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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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