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mara-20260511

0001507605FALSENASDAQ00015076052026-05-112026-05-11

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): May 11, 2026

MARA HOLDINGS, INC.

(Exact name of Registrant as Specified in Its Charter)

Nevada001-3655501-0949984

(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 May 11, 2026, MARA Holdings, Inc. (the “Company”) issued a shareholder letter announcing its financial results for the fiscal quarter ended March 31, 2026. The Company also issued a press release announcing its earnings webcast and conference call to be held on May 11, 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 May 11, 2026

99.2 Press Release dated May 11, 2026

104Cover 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: May 11, 2026 By: /s/ Zabi Nowaid

Zabi Nowaid

General Counsel and Corporate Secretary

mara-202602260001507605FALSENASDAQ00015076052026-02-262026-02-26

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)

Nevada001-3655501-0949984 (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

99.1Shareholder Letter dated February 26, 2026

99.2Press Release dated February 26, 2026

104Cover 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