Company: CCIXW
Filing Date: 2025-11-24
Form Type: DEF 14A
Source: 0001193125-25-293828
Chunk: 7

Company: Churchill Capital Corp IX/Cayman
Filing Date: 2025-11-24
Form: DEF 14A
Chunk 7
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, to be held on December 19, 2025, at 9:00 a.m. Eastern Time, or at any adjournments or postponements thereof. This Proxy Statement summarizes the information that you need to
make an informed decision on the Auditor Ratification Proposal to be considered at the Meeting.

This Proxy Statement and the enclosed
proxy card were first sent to our shareholders on or about November 24, 2025.

We are a blank check company incorporated as a Cayman
Islands exempted company on December 18, 2023 for the purpose of effecting a Business Combination. On May 6, 2025, we consummated our Initial Public Offering of 28,750,000 Units (the “Units”), including 3,750,000 Units
issued pursuant to the full exercise of the over-allotment option. Each Unit consists of one Class A Ordinary Share and one-quarter of one warrant (each, a “Public Warrant”). The Units
were sold at a price of $10.00 per Unit, generating gross proceeds to us of $287,500,000. Simultaneously with the closing of the Initial Public Offering and pursuant to that certain private placement units purchase agreement, dated May 1, 2025,
by and between the Company and Churchill Sponsor IX LLC (our “Sponsor”) (the “Private Placement Units Purchase Agreement”), we completed the sale of 725,000 Private Placement Units to the Sponsor in the private
placement at a purchase price of $10.00 per Private Placement Unit (the “Private Placement”), generating gross proceeds to us of $7,250,000. The Private Placement Units (and underlying securities) are identical to the Units (and
underlying securities), except as otherwise disclosed in the registration statement for the Company’s Initial Public Offering.

Why do we need to hold an annual meeting?

The Meeting is being held, in part, to satisfy the annual meeting requirement of The Nasdaq Stock
Market LLC (“Nasdaq”). Nasdaq Listing Rule 5620(a) requires that we hold an annual meeting of shareholders within 12 months after our fiscal year ended December 31, 2024. At the Meeting, you will have the
opportunity to present questions to the Management.

In addition to sending our shareholders this Proxy Statement, we are also sending our
2024 Annual Report for the year ended December 31, 2024, so that at the Meeting, shareholders may discuss and ask questions of the