Company: CIFRW
Filing Date: 2025-05-22
Form Type: 424B5
Source: 0001193125-25-124285
Chunk: 113

Company: Cipher Mining Inc.
Filing Date: 2025-05-22
Form: 424B5
Chunk 113
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 LLC, and BTIG, LLC as sales agents relating to our
at-the-market sales, following the earlier to occur of (a) the Underwriters’ exercise in full of their option to purchase the additional securities and (b) 30-day
period from the date of this prospectus supplement.

All of our directors and executive officers have entered into lock-up agreements with the underwriters prior to the commencement of this offering pursuant to which each of these persons, with limited exceptions, for a period of 45 days after the date of this prospectus
supplement, may not, without the prior written consent of Morgan Stanley & Co. LLC on behalf of the underwriters: (i) offer, sell, contract to sell, pledge or otherwise dispose of, directly or indirectly, any shares of common stock
beneficially owned (as such term is used in Rule 13d-3 of the Exchange Act) or securities convertible into or exchangeable or exercisable for any common stock, enter into a transaction which would have the
same effect, (ii) enter into any swap, hedge or other arrangement

S-72

that transfers, in whole or in part, any of the economic consequences of ownership of the common stock, whether any such aforementioned transaction is to be settled by delivery of common stock or
such other securities, in cash or otherwise, or publicly disclose the intention to make any such offer, sale, pledge or disposition, or to enter into any such transaction, swap, hedge or other arrangement or (iii) make any demand for or
exercise any right with respect to, the registration of any common stock or any security convertible into or exercisable or exchangeable for common stock.

In addition, the restrictions described in the immediately preceding paragraph to do not apply to: (a) any transactions relating to
common stock acquired in the open market after the closing of the offering, provided that with respect to any sale or other disposition of such common stock, no filing under the Exchange Act (other than on Form 5) or other public announcement shall
be required or shall be voluntarily made by any party in connection with subsequent sales of such common stock acquired in such open market transactions during the 45-day restricted period described above,
(b) any exercise of options or vesting or exercise of any other equity-based award, in each case, outstanding immediately following the issuance and sale of the securities in this offering, and in each
case under the Company’s equity incentive plan or any other plan or agreement described in the registration