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
8-K/A

Amendment to a previously filed 8-K

View HTML
S-8

Securities offered to employees pursuant to employee benefit plans

View HTML
S-8

Securities offered to employees pursuant to employee benefit plans

View HTML
424B3

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

View HTML
8-K

Report of unscheduled material events or corporate event

View HTML
10-Q

Quarterly report which provides a continuing view of a company's financial position

View HTML
S-3

Simplified registration form

View HTML
8-K

Report of unscheduled material events or corporate event

View HTML
8-K

Report of unscheduled material events or corporate event

View HTML
8-K

Report of unscheduled material events or corporate event

View HTML