Company: CCIXW
Filing Date: 2025-12-05
Form Type: S-4/A
Source: 0001193125-25-309933
Chunk: 30

Company: Churchill Capital Corp IX/Cayman
Filing Date: 2025-12-05
Form: S-4/A
Chunk 30
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 REDEMPTION RIGHTS. PLEASE SEE THE SECTION ENTITLED “ EXTRAORDINARY GENERAL MEETING OF CCIX SHAREHOLDERS — REDEMPTION RIGHTS ” FOR MORE SPECIFIC INSTRUCTIONS. Immediately following the Redemption Deadline, a public shareholder that makes an election to redeem its CCIX public shares (an “ Election ”) may withdraw its Election with respect to all or a portion of its CCIX public shares for which it previously submitted an Election (an “ Election Reversal ”).

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TO MAKE AN ELECTION REVERSAL WITH RESPECT TO YOUR CCIX PUBLIC SHARES, YOU MUST SUBMIT A WRITTEN REQUEST TO THE TRANSFER AGENT, AFTER 5:00 P.M. EASTERN TIME ON , 2025, THE DATE THAT IS TWO BUSINESS DAYS PRIOR TO THE SCHEDULED VOTE AT THE EXTRAORDINARY GENERAL MEETING, AND PRIOR TO THE SCHEDULED VOTE AT THE EXTRAORDINARY GENERAL MEETING, THAT THE ELECTION TO REDEEM YOUR CCIX PUBLIC SHARES BE REVERSED, INCLUDING THE LEGAL NAME, PHONE NUMBER, AND ADDRESS OF THE BENEFICIAL OWNER OF THE SHARES FOR WHICH REVERSAL IS REQUESTED AND THE NUMBER OR PERCENTAGE OF SHARES FOR WHICH REVERSAL IS REQUESTED. IF YOU HOLD THE SHARES IN STREET NAME, YOU WILL NEED TO INSTRUCT THE ACCOUNT EXECUTIVE AT YOUR BANK OR BROKER TO REQUEST REVERSAL OF THE ELECTION TO REDEEM AT THE TRANSFER AGENT.

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TABLE OF CONTENTS

| FREQUENTLY USED TERMS                                                                          |     |    1 |
| SUMMARY OF THE MATERIAL TERMS OF THE TRANSACTIONS                                              |     |   11 |
| QUESTIONS AND ANSWERS ABOUT THE BUSINESS COMBINATION                                           |     |   15 |
| SUMMARY OF THE PROXY STATEMENT/PROSPECTUS                                                      |     |   33 |
| SUMMARY FINANCIAL DATA                                                                         |     |   58 |
| CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS                                           |     |   61 |
| MARKET AND INDUSTRY DATA                                                                       |     |   63 |
| RISK FACTORS                                                                                   |     |   64 |
| EXTRAORDINARY GENERAL MEETING OF CCIX                                                          |     |  132 |
| PROPOSAL NO. 1 — THE BUSINESS COMBINATION PROPOSAL                                             |     |  140 |
| MATERIAL