Company: CIFRW
Filing Date: 2025-05-22
Form Type: 424B5
Source: 0001193125-25-124285
Chunk: 61

Company: Cipher Mining Inc.
Filing Date: 2025-05-22
Form: 424B5
Chunk 61
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 | consolidation, merger, combination or binding or statutory share exchange involving us; |

| • |     | sale, lease or other transfer of all or substantially all of the assets of us and our subsidiaries, taken as a 
 whole, to any person; or                                                                                       |

| • |     | other similar event, |

and, as a result of which, our common stock is converted into, or is exchanged for, or represents solely the right to receive, other securities, cash or other property, or any combination of the foregoing (such an event, a “common stock change event,” and such other securities, cash or property, the “reference property,” and the amount and kind of reference property that a holder of one share of our common stock would be entitled to receive on account of such common stock change event (without giving effect to any arrangement not to issue or S-39

deliver a fractional portion of any security or other property), a “reference property unit”), then, notwithstanding anything to the contrary,

| • |     | from and after the effective time of such common stock change event, (i) the consideration due upon                                                                                                                                            
 conversion of any note, and the conditions to any such conversion, will be determined in the same manner as if each reference to any number of shares of our common stock in the provisions described under this “—Conversion Rights”          
 section (or in any related definitions) were instead a reference to the same number of reference property units; (ii) for purposes of the redemption provisions described above under the caption “—Optional Redemption,” each                 
 reference to any number of shares of our common stock in such provisions (or in any related definitions) will instead be deemed to be a reference to the same number of reference property units; and (iii) for purposes of the definitions of 
 “fundamental change” and “make-whole fundamental change,” references to our “common stock” and “common equity” will be deemed to refer to the common equity (including depositary receipts representing common                                 
 equity), if any, forming part of such reference property;                                                                                                                                                                                      |

| • |     | if such reference property unit consists entirely of cash, then (i) each conversion of any note with a                                                                                                                                           
 conversion date that occurs on or after the effective date of such common stock change event will be settled entirely in cash in an amount, per $1,000 principal amount of such note being converted, equal to the product of (x) the conversion 
 rate in effect on such conversion date (including