Director — Dale Andres: The filing discloses the appointment of a new director to fill a vacancy created by a board expansion, which is a routine governance event rather than an executive departure.

Results of Operations and Financial Condition. On November 3, 2026, Hecla Mining Company (the “Company”) issued a news release announcing the Company’s third quarter 2026 operating and financial results. The news release is attached hereto as Exhibit 99.1 to this Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amen…

Other Events Dividend On November 3, 2026, the Company announced it would pay a dividend on its shares of common stock in the amount of $0.00375, to shareholders of record as of November 23, 2026, payable on or about December 8, 2026.

Entry into a Material Definitive Agreement. On September 16, 2026, Hecla Mining Company (“we,” “our,” “us,” or the “Company”) entered into a Credit Agreement (the “Credit Agreement”) with Hecla Limited, Hecla Alaska LLC, Hecla Greens Creek Mining Company and Hecla Juneau Mining Company, as borrowers, certain subsidiaries of the Company as guarantors, the various financial institutions and other persons from time to time party thereto as lenders (the “Lenders”), and Bank of America, N.A., as a…

Termination of a Material Definitive Agreement. In connection with the entry into the Credit Agreement described above under Item 1.01, the Company’s existing Credit Agreement, dated as of July 21, 2022, by and among Hecla Mining Company, Hecla Limited, Hecla Alaska LLC, Hecla Greens Creek Mining Company and Hecla Juneau Mining Company, as borrowers, certain subsidiaries of the Company as guarantors, Bank of America, N.A., as administrative agent, and the various lenders party thereto, as ame…

Material Modification to Rights of Security Holders. Pursuant to the Credit Agreement, we are subject to certain restrictions on our ability to pay dividends or make other distributions or payments on account of any redemption, retirement, or purchase of any capital stock. 3

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information disclosed under

Other Events Dividend On August 4, 2026, the Company announced it would pay a dividend on its shares of common stock in the amount of $0.00375, to shareholders of record as of August 26, 2026, payable on or about September 10, 2026. In addition to the common stock dividend, the Company also announced it declared a dividend of $0.875 on its Series B Cumulative Convertible Preferred Stock to shareholders of record as of September 15, 2026, payable on or about October 1, 2026.

Results of Operations and Financial Condition. On August 4, 2026, Hecla Mining Company (the “Company”) issued a news release announcing the Company’s second quarter 2026 operating and financial results. The news release is attached hereto as Exhibit 99.1 to this Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amend…

Amendment to extend the expiration date of the Director Stock Plan.

Results of Operations and Financial Condition. On May 5, 2026, Hecla Mining Company (the “Company”) issued a news release announcing the Company’s first quarter 2026 operating and financial results. The news release is attached hereto as Exhibit 99.1 to this Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (…

Other Events Dividend On May 5, 2026, the Company announced it would pay a dividend on its shares of common stock in the amount of $0.00375, to shareholders of record as of May 22, 2026, payable on or about June 10, 2026. In addition to the common stock dividend, the Company also announced it declared a dividend of $0.875 on its Series B Cumulative Convertible Preferred Stock to shareholders of record as of June 15, 2026, payable on or about July 1, 2026.

Termination of a Material Definitive Agreement On April 9, 2026, Hecla Mining Company (the “Company”) announced it had completed the redemption of its remaining $263 million 7.25% Senior Notes (“Notes”) due in 2028. The full redemption of the Notes terminates the (i) Indenture, dated February 19, 2020, by and among Hecla Mining Company and The Bank of New York Mellon Trust Company, N.A., as trustee (“Indenture”), (ii) First Supplemental Indenture, dated February 19, 2020, and (iii) Second Sup…

This Current Report on Form 8-K does not constitute a notice of redemption of the Notes. Information concerning the terms and conditions of the redemption is described in the notice received from the trustee to holders of the applicable Notes under the Indenture governing the Notes.

Completion of Acquisition or Disposition of Assets. On March 25, 2026, Hecla Mining Company (“Hecla” or the “Company”) issued a news release (the “News Release”) announcing the completion of the previously announced sale of all of the issued and outstanding shares of Hecla Quebec Inc. to 17629346 Canada Inc., an affiliate of Orezone Gold Corporation. The transaction was previously announced by Hecla on January 26, 2026 and disclosed in a Current Report on Form 8-K filed with the Securities an…

Other Events In the News Release, the Company also announced it had delivered a notice of redemption of the Company’s remaining $263 million 7.25% Senior Notes due 2028 (the “Notes”). The Company will redeem in full the remaining principal amount of the Notes outstanding on or about April 9, 2026 (the “Redemption Date”). The redemption price will be equal to 100.00% of the outstanding principal amount of the Notes being redeemed, plus accrued and unpaid interest thereon to, but not including,…

Chair of the Audit Committee (Director) — Stephen F. Ralbovsky: Mr. Stephen F. Ralbovsky retired from the Board of Directors and was succeeded by Ms. Jill Satre as Chair of the Audit Committee.

Results of Operations and Financial Condition. On February 17, 2026, Hecla Mining Company (the “Company”) issued a news release announcing the Company’s fourth quarter 2025 operating and financial results. The news release is attached hereto as Exhibit 99.1 to this Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as am…

Other Events On February 17, 2026, the Company announced it would pay a dividend on its shares of common stock in the amount of $0.00375, to shareholders of record as of March 9, 2026, payable on or about March 24, 2026. In addition to the common stock dividend, the Company also announced it declared a dividend of $0.875 on its Series B Cumulative Convertible Preferred Stock to shareholders of record as of March 16, 2026, payable on or about April 1, 2026.

Entry into a Material Definitive Agreement On January 26, 2026, Hecla Mining Company (“we,” “us” or “Hecla”) issued a news release announcing it had entered into a definitive agreement (the “Agreement”) to sell its wholly owned subsidiary, Hecla Quebec Inc., which owns the Casa Berardi operation, and a portfolio of exploration properties, all located in Quebec, Canada, to Orezone Gold Corporation (“Orezone”) for up to $593 million in total consideration. The transaction is expected to close i…

Results of Operations and Financial Condition On January 26, 2026, Hecla Mining Company (the “Company”) issued a news release (“Release”) announcing certain preliminary production and financial results for the fourth quarter and full year ended December 31, 2025. All measures of the Company's fourth quarter and full year 2025 operating and financial results and conditions contained in the Release are preliminary and reflect the Company’s expected results as of the date of the Release. Actual…

Chief Administrative Officer — Michael L. Clary: The Senior Vice President and Chief Administrative Officer is terminating employment and transitioning to a consultant role with severance, representing a genuine departure of a senior officer.

Other Events On November 5, 2025, the Company announced it would pay a dividend on its shares of common stock in the amount of $0.00375, to shareholders of record as of November 24, 2025, payable on or about December 8, 2025. In addition to the common stock dividend, the Company also announced it declared a dividend of $0.875 on its Series B Cumulative Convertible Preferred Stock to shareholders of record as of December 15, 2025, payable on or about January 2, 2026.

Results of Operations and Financial Condition. On November 5, 2025, Hecla Mining Company (the “Company”) issued a news release announcing the Company’s third quarter 2025 operating and financial results. The news release is attached hereto as Exhibit 99.1 to this Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information in this Item 2.02, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amen…

Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement On August 18, 2025, Hecla Mining Company (the “Company”) the Company funded the previously announced redemption of $212 million of its outstanding $475 million 7.25% Senior Notes due 2028 (the “Notes”), pursuant to a notice received from the trustee of the Notes. The total amount paid was $216,014,337.38, with $3,843,560 paid as call premium and $170,777.78 paid…