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): July 23, 2025

MARA HOLDINGS, INC.

(Exact name of Registrant as Specified in Its Charter)

(800) 804-1690
(Registrant’s telephone number, including area code)

Not Applicable
(Former Name or Former Address, if Changed Since Last Report)

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:

Securities registered pursuant to Section 12(b) of the Act:

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. ☐

Convertible Notes Offering

On July 25, 2025, MARA Holdings, Inc. (the “Company”) completed its previously announced private offering of 0.00% convertible senior notes due 2032 (the “notes”). The notes were sold under a purchase agreement, dated as of July 23, 2025, entered into by and among the Company and Morgan Stanley & Co. LLC., as representative of the several initial purchasers named therein (the “Initial Purchasers”), for resale to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). The aggregate principal amount of notes sold in the offering was $950 million. The Company also granted the Initial Purchasers an option to purchase up to an additional $200 million aggregate principal amount of the notes within a 13-day period beginning on, and including, the date on which the notes were first issued.

The notes were issued at a price equal to 100% of their principal amount. The net proceeds from the sale of the notes were approximately $940.5 million after deducting the Initial Purchasers’ discounts and commissions but before estimated offering expenses payable by the Company.

The Company used approximately $18.3 million of the net proceeds from the sale of the notes to repurchase approximately $19.4 million in aggregate principal amount of its 1.00% convertible senior notes due 2026 (the “1.00% 2026 convertible notes”) in privately negotiated transactions and approximately $36.9 million of the net proceeds to pay the cost of the capped call transactions entered into with certain of the Initial Purchasers of the notes or their respective affiliates and certain other financial institutions. The Company expects to use the remainder of the net proceeds to acquire additional bitcoin and for general corporate purposes, which may include working capital, strategic acquisitions, expansion of existing assets, and repayment of additional debt and other outstanding obligations.

Indenture and the Notes

On July 25, 2025, the Company entered into an indenture (the “Indenture”) with respect to the notes with U.S. Bank Trust Company, National Association, as trustee (the “Trustee”). The notes are senior unsecured obligations of the Company. The notes will not bear regular interest and the principal amount of the notes will not accrete. The Company may pay special interest, if any, at its election as the sole remedy for failure to comply with its reporting obligations and under certain other circumstances, each pursuant to the Indenture. Special interest, if any, on the notes will be payable semi-annually in arrears on February 1 and August 1 of each year, beginning on February 1, 2026 (if and to the extent that special interest is then payable on the notes). The notes will mature on August 1, 2032, unless earlier repurchased, redeemed or converted in accordance with their terms.

The notes are convertible into shares of the Company’s common stock at an initial conversion rate of 49.3619 shares per $1,000 principal amount of notes (equivalent to an initial conversion price of approximately $20.2585 per share of common stock). The conversion rate is subject to customary anti-dilution adjustments. In addition, following certain events that occur prior to the maturity date or if the Company delivers a notice of redemption, the Company will increase the conversion rate for a holder who elects to convert its notes in connection with such corporate event or notice of redemption, as the case may be, in certain circumstances as provided in the Indenture.

Prior to May 1, 2032, the notes are convertible only upon the occurrence of certain events. On or after May 1, 2032 until the close of business on the second scheduled trading day immediately preceding the maturity date of the notes, holders may convert the notes at any time. Upon conversion of the notes, the Company will pay or deliver, as the case may be, cash, shares of the Company’s common stock or a combination of cash and shares of common stock, at the Company’s election.

Prior to January 15, 2030, the Company may not redeem the notes. The Company may redeem for cash all or any portion of the notes, at its option, on or after January 15, 2030 if the last reported sale price of the Company’s common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive), including the trading day immediately preceding the date on which the Company provides a notice of redemption, during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides notice of redemption. The redemption price will be equal to 100% of the principal amount of the notes to be redeemed, plus accrued and unpaid special interest, if any, to, but excluding, the redemption date.

Holders have the right to require the Company to repurchase for cash all or any portion of their notes on January 4, 2030 at a repurchase price equal to 100% of the principal amount of the notes to be repurchased, plus any accrued and unpaid special interest to, but excluding the repurchase date, if the last reported sale price of the Company’s common stock on the second trading day immediately preceding the repurchase date is less than the conversion price.

If the Company undergoes a “fundamental change,” as defined in the Indenture, prior to maturity, subject to certain conditions, holders may require the Company to repurchase for cash all or any portion of their notes at a fundamental change repurchase price equal to 100% of the principal amount of the notes to be repurchased, plus any accrued and unpaid special interest to, but excluding, the fundamental change repurchase date.

The Indenture contains customary terms and covenants, including that upon certain events of default occurring and continuing, either the Trustee or the holders of at least 25% in principal amount of the outstanding notes may declare 100% of the principal of, and accrued and unpaid special interest, if any, on, all the notes to be due and payable.

The foregoing description of the Indenture and the notes does not purport to be complete and is qualified in its entirety by reference to the full text of the Indenture (and the form of note included therein), a copy of which is filed with this Current Report on Form 8-K as Exhibit 4.1 hereto and is hereby incorporated herein by reference.

Capped Call Transactions

On July 23, 2025, in connection with the pricing of the offering of Notes, the Company entered into privately negotiated capped call transactions (the “Capped Call Transactions”) with certain of the Initial Purchasers of the notes or their respective affiliates and certain other financial institutions (the “Option Counterparties”). The Capped Call Transactions cover, subject to anti-dilution adjustments substantially similar to those applicable to the notes, the aggregate number of shares of the Company’s common stock that initially underlie the notes, and are expected generally to reduce potential dilution to the Company’s common stock upon any conversion of notes and/or offset any cash payments the Company is required to make in excess of the principal amount of converted notes, as the case may be, with such reduction and/or offset subject to a cap, based on the cap price of the Capped Call Transactions.

The Capped Call Transactions are separate transactions, each between the Company and the applicable Option Counterparty, and are not part of the terms of the notes and will not affect any holder’s rights under the notes or the Indenture. Holders of the notes will not have any rights with respect to the Capped Call Transactions.

The foregoing description of the Capped Call Transactions does not purport to be complete and is qualified in its entirety by reference to the full text of the capped call confirmations entered into between the Company and each Option Counterparty in substantially the form filed with this Current Report on Form 8-K as Exhibit 10.1 hereto, which is incorporated herein by reference.

The information set forth in Item 1.01 of this Current Report on Form 8-K is incorporated herein by reference.

The information set forth in Item 1.01 of this Current Report on Form 8-K is incorporated herein by reference.

The Company offered and sold the notes to the Initial Purchasers in reliance on the exemption from the registration requirements provided by Section 4(a)(2) of the Securities Act, and the notes were resold only to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A of the Securities Act. The Company will settle conversions of the notes by paying and/or delivering, as the case may be, cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock, at the Company’s election. Neither the notes nor the underlying shares of common stock have been registered under the Securities Act and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements. The Company does not intend to file a shelf registration statement for the resale of the notes or any common stock issuable upon conversion of the notes.

On July 28, 2025, the Company issued a press release announcing the closing of the offering. A copy of the press release is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

The information contained in Exhibit 99.1 hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such filing.

Cautionary Note Regarding Forward-Looking Statements

Statements in this Current Report on Form 8-K and the exhibits attached hereto about future expectations, plans, and prospects, as well as any other statements regarding matters that are not historical facts, may constitute “forward-looking statements” within the meaning of The Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements relating to the Company’s use of the remainder of the net proceeds of the offering and the impact of the capped call transactions. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including uncertainties related to market conditions, the other factors discussed in the “Risk Factors” section of the Company’s Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission (the “SEC”) on March 3, 2025 and the risks described in other filings that the Company may make from time to time with the SEC. Any forward-looking statements contained in this Current Report on Form 8-K speak only as of the date hereof, and the Company specifically disclaims any obligation to update any forward-looking statement, whether as a result of new information, future events, or otherwise, except to the extent required by applicable law.

Exhibits

SIGNATURE

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 hereunto duly authorized.