Coeur Mining, Inc.

(a)Change in Officers

On May 13, 2026, Kenneth J. Watkinson, the Company’s Vice President, Corporate Controller and Chief Accounting Officer informed the Company of his intention to retire in early 2027. Mr. Watkinson is expected to remain in his current role until August 10, 2026, thereafter continuing as Vice President, Accounting to assist with transition matters through his retirement in early 2027.

Anne Beckhelheimer has been selected to assume the role of Senior Vice President, Tax, Corporate Controller and Chief Accounting Officer of the Company effective August 10, 2026. Ms. Beckelheimer, 46, joined the Company in June 2015 and has over 20 years of relevant experience. Ms. Beckelheimer has served as the Company’s Senior Vice President, Tax and Treasurer since February 2026. Ms. Beckelheimer previously served as Vice President, Tax and Treasurer from May 2020 to February 2026, as Vice President, Tax from March 2017 to May 2020, and as Director of Tax from June 2015 to March 2017. She began her career with KPMG, LLP and previously served as Senior Manager, Global Tax Accounting at Newmont Mining Corporation and as Tax Director for Royal Gold, Inc. Ms. Beckelheimer holds a Bachelor of Business Administration from Baylor University and a Masters of Taxation from the University of Denver. She is a Certified Public Accountant.

(c)Trading Plans

On May 11, 2026, Anne Beckelheimer, Senior Vice President, Tax and Treasurer, adopted a new trading arrangement for the sale of the shares of the Company’s common stock (the “Beckelheimer 10b5-1 Plan”). The Beckelheimer 10b5-1 Plan was entered into during an open trading window in accordance with the Company’s Insider Trading Policy and is intended to satisfy the affirmative defense requirements of Rule 10b5-1(c) under the Exchange Act. Ms. Beckelheimer was not an officer of the Company as defined by Rule 16a-1(f) of the Securities Exchange Act of 1934 at the time the Beckelheimer 10b5-1 Plan was adopted. However, as noted in Part II, Item 5(a) above, the Company intends to appoint Ms. Beckelheimer to be an officer of the Company effective August 10, 2026. The Beckelheimer 10b5-1 Plan provides for the sale of up to 20,000 shares of the Company’s common stock between June 11, 2026 and February 25, 2027, pursuant to terms specified in the Beckelheimer 10b5-1 Plan.

On May 19, 2026, Casey M. Nault, Executive Vice President, General Counsel and Secretary, adopted a new trading arrangement for the sale of the shares of the Company’s common stock (the “Nault 10b5-1 Plan”). The Nault 10b5-1 Plan was entered into during an open trading window in accordance with the Company’s Insider Trading Policy and is intended to satisfy the affirmative defense requirements of Rule 10b5-1(c) under the Exchange Act. The Nault 10b5-1 Plan provides for the sale of up to 240,000 shares of the Company’s common stock between August 18, 2026 and May 8, 2028, pursuant to terms specified in the Nault 10b5-1 Plan.

On June 1, 2026, Mitchell J. Krebs, Chairman, President and Chief Executive Officer, adopted a new trading arrangement for the sale of the shares of the Company’s common stock (the “Krebs 10b5-1 Plan”). The Krebs 10b5-1 Plan was entered into during an open trading window in accordance with the Company’s Insider Trading Policy and is intended to satisfy the affirmative defense requirements of Rule 10b5-1(c) under the Exchange Act. The Krebs 10b5-1 Plan provides for the sale of up to 250,000 shares of the Company’s common stock between August 31, 2026 and February 28, 2027, pursuant to terms specified in the Krebs 10b5-1 Plan.

On June 15, 2026, Aoife McGrath, Executive Vice President, Exploration, adopted a new trading arrangement for the sale of the shares of the Company’s common stock (the “McGrath 10b5-1 Plan”). The McGrath 10b5-1 Plan was entered into during an open trading window in accordance with the Company’s Insider Trading Policy and is intended to satisfy the affirmative defense requirements of Rule 10b5-1(c) under the Exchange Act. The McGrath 10b5-1 Plan provides for the sale of up to 30,000 shares of the Company’s common stock between December 18, 2026 and December 31, 2027, pursuant to terms specified in the McGrath 10b5-1 Plan.