mara-20260226 0001507605 FALSE NASDAQ 0001507605 2026-02-26 2026-02-26 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 26, 2026 MARA HOLDINGS, INC. (Exact name of Registrant as Specified in Its Charter) Nevada 001-36555 01-0949984 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 1010 South Federal Highway , Suite 2700 Hallandale Beach , FL 33009 (Address of Principal Executive Offices and Zip Code) ( 800 ) 804-1690 (Registrant’s Telephone Number, Including Area Code) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class: Trading Symbol(s): Name of each exchange on which registered: Common Stock MARA NASDAQ Capital Market Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Item 2.02    Results of Operations and Financial Condition On February 26, 2026, MARA Holdings, Inc. (the “Company”) issued a shareholder letter announcing its preliminary, unaudited financial results for the fiscal quarter and full year ended December 31, 2025. The Company also issued a press release announcing its earnings webcast and conference call to be held on February 26, 2026. The full text of the shareholder letter and press release are attached hereto as Exhibit 99.1 and Exhibit 99.2, respectively, and are incorporated herein by reference. The information furnished pursuant to this Item 2.02, including Exhibit 99.1 and 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. Item 9.01    Financial Statements and Exhibits (d)    Exhibits Exhibit No. Description 99.1 Shareholder Letter dated February 26, 2026 99.2 Press Release dated February 26, 2026 104 Cover page interactive data file (embedded with the inline XBRL document) 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. MARA HOLDINGS, INC. Date: February 26, 2026 By: /s/ Zabi Nowaid Zabi Nowaid General Counsel and Corporate Secretary

MARA Holdings, Inc. announced preliminary, unaudited financial results for fiscal year 2025 on February 26, 2026, with an earnings webcast and conference call scheduled for the same day to discuss performance and forward strategy.

On February 26, 2026, MARA Holdings, Inc. announced its preliminary, unaudited financial results for the fiscal quarter and full year ended December 31, 2025, through a shareholder letter. The announcement highlights the company's financial performance over the past year and includes details relevant for investors. A press release accompanying the announcement states that an earnings webcast and conference call will occur on the same day. This communication is significant as it provides essential information for current and potential shareholders regarding the company's financial health and strategies going forward.

MARA HOLDINGS, INC.

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