Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (MARK ONE) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarter ended June 30, 2025 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number:001-42041 CHURCHILL CAPITAL CORP IX (Exact Name of Registrant as Specified in Its Charter) Cayman Islands 86-1885237 (State or ...

For the quarter ended March 31, 2025 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (MARK ONE) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-42041 CHURCHILL CAPITAL CORP IX (Exact Name of Registrant as Specified in Its Charter) Cayman Islands 86-1885237 (State o ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-42041 CHURCHILL CAPITAL CORP IX (Exact name of registrant as specified in its charter) Cayman Islands 86-1885237 ( ...

Table of Contents Title of each classTrading Symbol(s)Name of each exchange on which registered Units, each consisting of one Class A ordinary share and one-quarter of one redeemable warrant CCIXU The Nasdaq Stock Market LLC Class A ordinary shares, par value $0.0001 par value CCIX The Nasdaq Stock Market LLC Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share CCIXW The Nasdaq Stock Market LLC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washi ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Title of each classTrading Symbol(s)Name of each exchange on which registered Units, each consisting of one Class A ordinary share and one-quarter of one redeemable warrant CCIXU The Nasdaq Stock Market LLC Class A ordinary shares, par value $0.0001 par value CCIX The Nasdaq Stock Market LLC Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share CCIXW The Nasdaq Stock Market LLC ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share FORM 10-Q (MARK ONE) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarter ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-42041 CHURCHILL CAPITAL CO ...