Company: CIFRW
Filing Date: 2025-04-21
Form Type: DEF 14A
Source: 0001819989-25-000027
Chunk: 0

Company: Cipher Mining Inc.
Filing Date: 2025-04-21
Form: DEF 14A
Chunk 0
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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549
<div align='center'>_____________________________________________________________________</div>

#### SCHEDULE 14A
<div align='center'>(RULE 14a-101)</div>

### INFORMATION REQUIRED IN PROXY STATEMENT
<div align='center'>_____________________________________________________________________</div>

#### SCHEDULE 14A INFORMATION

#### Proxy Statement Pursuant to Section 14(a) of the

#### Securities Exchange Act of 1934
<div align='center'>(Amendment No. )

_____________________________________________________________________</div>

Filed by the Registrant x Filed by a Party other than the Registrant o

Check the appropriate box:

o Preliminary Proxy Statement

o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

x Definitive Proxy Statement

o Definitive Additional Materials

o Soliciting Material under § 240.14a-12

#### Cipher Mining Inc.
<div align='center'>(Name of Registrant as Specified in its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)</div>

Payment of Filing Fee (Check all boxes that apply):

x No fee required.

o Fee paid previously with preliminary materials.

o Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

<div align='center'>Cipher Mining Inc.

1 Vanderbilt Avenue, Floor 54

New York, New York 10017</div>

April 21, 2025

Dear Fellow Stockholders:

On behalf of the Board of Directors, I cordially invite you to attend the 2025 annual meeting of stockholders (the “Annual Meeting”) of Cipher Mining Inc., which will be held on Tuesday, June 3, 2025, beginning at 8:00 a.m., Eastern Time. The Annual Meeting will be a completely virtual meeting, which will be conducted via live webcast.

Attached to this letter are a Notice of Annual Meeting of Stockholders and Proxy Statement, which describe the business to be conducted at the meeting.

Your vote is important to us. Please act as soon as possible to vote your shares. It is important that your shares be represented at the meeting whether or not you plan to attend the Annual Meeting via the Internet. Please vote electronically over the Internet, by telephone or, if you receive a paper copy of the