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
11-K

An annual report of employee stock purchase, savings and similar plans

View HTML
PRER14A

Proxy soliciting materials. Revised preliminary material

View HTML
DEFA14A

Additional proxy soliciting materials - definitive

View HTML
PREM14A

A preliminary proxy statement relating to a merger or acquisition

View HTML
DEFA14A

Additional proxy soliciting materials - definitive

View HTML
3

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

View HTML
4

Statement of changes in beneficial ownership of securities

View HTML
4

Statement of changes in beneficial ownership of securities

View HTML
4

Statement of changes in beneficial ownership of securities

View HTML
4

Statement of changes in beneficial ownership of securities

View HTML