United States Securities and Exchange Commission Washington, D.C. 20549 Form 10-K (Mark One) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the year ended December 31, 2019 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from ______________ to ______________ Commission File Number 1-3548 ALLETE, Inc. (Exact name of registrant as specified in its charter) Minnesota 41-0418150 (State or other juris ...

ALLETE, Inc. (NYSE:ALE) Q3 2019 Earnings Conference Call November 6, 2019 5:00 PM ET Company Participants Alan Hodnik - President and Chief Executive Officer Bethany Owen - President Steven Morris - Vice President, Controller and Chief Accounting Officer Robert Adams - Senior Vice President and Chief Financial Officer Conference Call Participants Christopher Turner - JP Morgan Brian Russo - Sidoti Vedula Murti - Avon Capital Paul Fremont - Mizuho Operator Good day, and welcome to the ALLETE Third Quarter 2 ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from ______________ to ______________ Commission File Number 1-3548 ALLETE, Inc. (Exact name of registrant as specified in its charter) Minnesota 41-0418150 (S ...

ALLETE, Inc. (NYSE:ALE) Q2 2019 Earnings Conference Call August 1, 2019 10:00 AM ET Company Participants Alan Hodnik - President and Chief Executive Officer Bethany Owen - President Robert Adams - Senior Vice President and Chief Financial Officer Steven Morris - Vice President, Controller and Chief Accounting Officer Conference Call Participants David Emami - Verition Fund Management LLC Vedula Murti - Avon Capital Christopher Ellinghaus - The Williams Capital Group, LP Operator Good day, and welcome to the ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from ______________ to ______________ Commission File Number 1-3548 ALLETE, Inc. (Exact name of registrant as specified in its charter) Minnesota 41-0418150 (State ...

ALLETE, Inc. (NYSE:ALE) Q1 2019 Results Conference Call May 2, 2019 10:00 AM ET Company Participants Alan Hodnik - President and Chief Executive Officer Bethany Owen - President Bob Adams - Senior Vice President and Chief Financial Officer Steve Morris - Vice President, Controller and Chief Accounting Officer Conference Call Participants Chris Ellinghaus - Williams Capital Vedula Murti - Avon Capital Operator Good day, and welcome to the ALLETE First Quarter 2019 Financial Results Call. Today's call is bein ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) x Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2019 or ¨ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from ______________ to ______________ Commission File Number 1-3548 ALLETE, Inc. (Exact name of registrant as specified in its charter) Minnesota 41-0418150 (State ...

United States Securities and Exchange Commission Washington, D.C. 20549 Form 10-K (Mark One) T Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the year ended December 31, 2018 £ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from ______________ to ______________ Commission File Number 1-3548 ALLETE, Inc. (Exact name of registrant as specified in its charter) Minnesota 41-0418150 (State or other juris ...