Company: CIFRW
Filing Date: 2025-05-22
Form Type: 424B5
Source: 0001193125-25-124285
Chunk: 5

Company: Cipher Mining Inc.
Filing Date: 2025-05-22
Form: 424B5
Chunk 5
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 underwriters are making
an offer to sell these securities in any jurisdiction where an offer or sale is not permitted. The information in this prospectus supplement, and the information in the accompanying base prospectus or contained in any document incorporated by
reference is accurate only as of the date of such prospectus or document incorporated by reference, regardless of the time of delivery of this prospectus supplement or any sale of our securities. Our business, financial condition, results of
operations and prospects may have changed since that date.

This prospectus supplement contains forward-looking statements that are subject to a number of
risks and uncertainties, many of which are beyond our control. Please read the sections entitled “Risk Factors” and “Cautionary Statement Regarding Forward-Looking Statements.”

S-i

Cautionary Note Regarding Forward-Looking Statements This prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein include “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements contained in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein other than statements of historical fact, including, without limitation, statements about the terms and completion of this offering and the concurrent delta offering, the effect of the hedging activities related to this offering on the market price of our shares of common stock, our beliefs and expectations regarding our future results of operations and financial position, planned business model and strategy, our bitcoin mining and high-performance compute (“HPC”) data center development, timing and likelihood of success, capacity, functionality and timing of operation of data centers, expectations regarding the operation of data centers, potential strategic initiatives, such as joint ventures and partnerships, and management plans and objectives are forward-looking statements. Statements that are predictive in nature, that depend upon or refer to future events or conditions or that include the words “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “could,” “seeks,” “intends,” “targets,” “projects,” “contemplates,” “believes,” “estimates,” “forecasts,” “predicts,” “potential” or “continue” and other expressions that are predictions of or indicate future events and trends and that do not relate to historical matters identify forward-looking statements. The forward-looking statements in this prospectus supplement, the accompanying