Company: CIFRW
Filing Date: 2025-09-25
Form Type: PRE 14A
Source: 0001819989-25-000090
Chunk: 8

Company: Cipher Mining Inc.
Filing Date: 2025-09-25
Form: PRE 14A
Chunk 8
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 and international number available on the website to assist you. Technical support will be available 15 minutes prior to the start time of the meeting and through the conclusion of the meeting.

#### How does the Board recommend that I vote?
The Board recommends that you vote FOR the Charter Amendment Proposal.

How many votes are required to approve the Charter Amendment Proposal?

The table below summarizes the proposal that will be voted on, the vote required to approve the proposal and how votes are counted:

| Proposal                   |     | Votes Required For Approval                                                                                                                    |     | Voting Options |     | Effect of       
 “Abstain” Votes |     | Effect of Broker Non-Votes |
| Charter Amendment Proposal |     | Pursuant to Delaware law, the votes cast for the Charter Amendment Proposal must exceed the votes cast against the Charter Amendment Proposal. |     | “FOR”          
 “AGAINST”      
 “ABSTAIN”      |     | None.(1)        |     | Not applicable.(2)         |

(1) Abstentions are not counted as votes cast and thus will have no effect on the vote on this proposal.

(2) As this proposal is considered a discretionary matter, brokers are permitted to exercise their discretion to vote uninstructed shares on this proposal, and we do not expect any broker non-votes on this matter.

What if I do not specify how my shares are to be voted?

If you submit a proxy but do not indicate any voting instructions, the persons named as proxies will vote in accordance with the recommendations of the Board. The Board’s recommendations are set forth above, as well as with the description of each proposal in this Proxy Statement.

#### Who will count the votes?
Representatives of Broadridge Investor Communications Services (“Broadridge”) will tabulate the votes, and a representative of Broadridge will act as inspector of election.

Can I revoke or change my vote after I submit my proxy?

Yes. Whether you have voted by Internet, telephone or mail, if you are a stockholder of record, you may change your vote and revoke your proxy by:

• sending a written statement to that effect to the attention of our Corporate Secretary at our corporate offices, provided such statement is received no later than [_____], 2025;

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• voting again by Internet or telephone at a later time before the closing of those voting facilities at 11:59 p.m., Eastern Time, on [_____], 2025;

• submitting a properly signed proxy card with a later date that