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

Company: Churchill Capital Corp IX/Cayman
Filing Date: 2025-11-24
Form: DEF 14A
Chunk 14
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, bank or nominee.

Who can help answer my questions?

If you have questions about the Auditor Ratification Proposal or if you need additional copies of the Proxy Statement
or the enclosed proxy card, you should contact the Solicitation Agent at:

Sodali & Co

333 Ludlow Street, 5 Floor, South Tower

Stamford, CT 06902

Telephone:
(800) 662-5200

Bank and Brokers: (203) 658-9400

Email: CCIX.info@investor.sodali.com

You may also contact us at:

Churchill Capital Corp IX

640
Fifth Avenue, 14 Floor

New York, NY 10019

Attn: Jay Taragin

Telephone No.:
(212) 380-7500

To obtain timely delivery, shareholders must request the materials no later than
December 12, 2025. You may also obtain additional information about us from documents filed with the SEC by following the instructions in the section of this Proxy Statement entitled “Where You Can Find More Information.”

7

BACKGROUND

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.

There are currently 29,475,000 Class A Ordinary Shares and 7,187,500 Class B Ordinary Shares issued and
outstanding. In addition, we issued (i) 7,187,500 Public Warrants as part of our Initial Public Offering and (ii) 181,250 Private Placement Warrants as part of the Private Placement and in connection with the underwriter’s partial exercise of
its over-allotment option. Each whole Warrant entitles its holder to purchase one Class A Ordinary Share at an exercise price of $11.50 per share. The warrants will become exercisable 30 days after the completion of our initial Business
Combination and expire five years after the completion of our initial Business Combination or earlier upon redemption or liquidation. Once the warrants become exercisable, we may redeem the outstanding warrants at a price of $0.01 per Warrant, if
the last sale price of the Class A Ordinary Shares equals or exceeds $18.00 per share for any 20 trading days within a 30 trading day period ending on the third business day before we send the notice of redemption to the warrant holders. The
Private Placement Warrants, however, are non-redeemable so long as