Cipher Digital Inc.

Item 7.01. Regulation FD Disclosure. In connection with the proposed offering discussed below, Cipher Digital Inc. (the “Company” or “Cipher”) has made available to potential investors a presentation with respect to marketing the offering. The investor presentation disclosed certain information that supplements or updates certain prior disclosures of the Company. Pursuant to Regulation FD, the Company is furnishing herewith such information as Exhibit 99.1 to this Current Report on Form 8-K. The information contained in Item 7.01 of this Current Report (as well as in Exhibit 99.1 attached hereto) is furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and such information shall not be deemed to be incorporated by reference into any of the Company’s filings under the Securities Act of 1933, as amended, or the Exchange Act.

Item 8.01. Other Events. On October 13, 2026, the Company issued a press release announcing that it intends to offer, subject to market and other conditions, $850.0 million aggregate principal amount of convertible senior notes due 2032 (the “notes”) in a private offering to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act of 1933, as amended, and grant to the initial purchasers of the notes an option to purchase, within a 13-day period beginning on, and including, the date on which the notes are first issued, up to an additional $150.0 million aggregate principal amount of the notes. Concurrently with the offering, the Company expects to enter into separate, privately negotiated transactions with a limited number of holders of its 1.75% Convertible Senior Notes due 2030 (the “2030 notes”) to exchange a portion of the 2030 notes for shares of the Company’s common stock (the “Concurrent 2030 Notes Exchange”). A copy of the press release announcing the offering and the Concurrent 2030 Notes Exchange is filed as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference. The information included in this Current Report on Form 8-K is neither an offer to sell nor a solicitation of an offer to buy any securities and does not constitute an offer to exchange or repurchase, or a notice of redemption with respect to, the 2030 notes. Cautionary Note Regarding Forward-Looking Statements This Current Report on Form 8-K contains certain forward-looking statements within the meaning of the federal securities laws of the United States. The Company intends such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995 and includes this statement for purposes of complying with these safe harbor provisions. Any statements made in this Current Report on Form 8-K that are not statements of historical fact, such as statements regarding the anticipated terms of the notes being offered, the completion, timing and size of the proposed offering of the notes, and the intended use of the net proceeds, are forward-looking statements and should be evaluated as such. These forward-looking statements generally are identified by the words “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “seeks,” “intends,” “targets,” “projects,” “contemplates,” “believes,” “estimates,” “strategy,” “future,” “forecasts,” “opportunity,” “predicts,” “potential,” “would,” “will likely result,” “continue,” and similar expressions (including the negative versions of such words or expressions). These forward-looking statements are based upon estimates and assumptions that, while considered reasonable by Cipher and its management, are inherently uncertain. Such forward-looking statements are subject to risks, uncertainties, and other factors that could cause actual results to differ materially from those expressed or implied by such forward-looking statements. New risks and uncertainties may emerge from time to time, and it is not possible to predict all risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this Current Report on Form 8-K, including but not limited to: volatility in the price of Cipher’s securities due to a variety of factors, including changes in the competitive and regulated industry in which Cipher operates, Cipher’s evolving business model and strategy and efforts it may make to modify aspects of its business model or engage in various strategic initiatives, variations in performance across competitors, changes in laws and regulations affecting Cipher’s business, the ability of Cipher’s customers, tenants, and other counterparties to perform their contractual obligations, the ability of Cipher to complete its data centers and future strategic growth initiatives in a timely manner or within anticipated cost estimates, risks relating to the development, construction, and operation of Cipher’s data centers, the availability of capital and financing on acceptable terms, changes in market demand, and the ability to implement business plans, forecasts, and other expectations and to identify and realize additional opportunities. The foregoing list of factors is not exhaustive. Potential investors, stockholders and other readers are cautioned to carefully consider the foregoing factors and the other risks and uncertainties described in the “Risk Factors” section of Cipher’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the Securities and Exchange Commission (“SEC”) on February 24, 2026, Cipher’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2026 filed with the SEC on August 4, 2026 and in Cipher’s subsequent filings with the SEC. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and Cipher assumes no obligation and, except as required by law, does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise.