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-A12B

Registration of certain classes of securities 12(b) of the Securities Exchange Act

View HTML
8-K

Report of unscheduled material events or corporate event

View HTML
S-3

Simplified registration form

View HTML
11-K

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

View HTML
11-K

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

View HTML
S-3/A

Pre-effective amendment to an S-3 filing

View HTML
8-K

Report of unscheduled material events or corporate event

View HTML
SC 13G/A

An amendment to the SC 13G filing

View HTML
10-Q

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

View HTML
8-K

Report of unscheduled material events or corporate event

View HTML