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

Anne Beckelheimer

Senior Vice President, Tax and Treasurer

true

May 11, 2026

February 25, 2027

259 days

Casey M. Nault [Member]

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.

Casey M. Nault

Executive Vice President, General Counsel and Secretary

Mitchell J. Krebs [Member]

true

May 19, 2026

May 8, 2028

629 days

240

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.

Mitchell J. Krebs

Chairman, President and Chief Executive Officer

true

June 1, 2026

February 28, 2027

181 days

250

Aoife McGrath [Member]

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.

Aoife McGrath

Executive Vice President, Exploration