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6-K

Fortuna Mining Corp. (FSM)

6-K 2026-04-02 For: 2026-04-02
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Added on April 11, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANTTO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of April 2026

Commission File Number 001-35297

Fortuna Mining Corp.

(Translation of registrant’s name into English)

1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

FORM 20-F   ¨ FORM 40-F  þ

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Fortuna Mining Corp.
Date:  April 2, 2026 (Registrant)
By: /s/  "Jorge Ganoza Durant"
Jorge Ganoza Durant
President and CEO

Exhibits:

99.1 Notice of Meeting and Record Dates dated April 2, 2026

Exhibit 99.1

April 2, 2026

TO: All Securities Commissions of Canada <br><br>Toronto Stock Exchange

Re: Notice of Meeting and Record Dates Under NI 54-101


In accordance with NI 54-101, we hereby give you notice of a meeting of the shareholders for the undermentioned issuer:

Issuer: Fortuna Mining Corp.
Meeting Date: Thursday, June 25, 2026
Record Date for Notice and Voting: Friday, May 1, 2026
Beneficial Ownership Determination Date: Friday, May 1, 2026
Security Description: Common Shares
CUSIP: 349942 10 2
ISIN: CA3499421020
Meeting Type: Annual
Issuer Sending Material via Notice-and-Access: Yes
Issuer Sending Material Directly to NOBOs: No
Issuer Paying to Send Material to OBOs: Yes
FORTUNA MINING CORP.
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Per: Sally Whittall, Corporate Secretary