Churchill Sponsor IX LLC - 18 Sep 2025 SCHEDULE 13D/A Report for Churchill Capital Corp IX Class A Ordinary Shares, $0.0001 par value (CCIX)

Filing Manager: Churchill Sponsor IX LLC
Reporting Manager: Churchill Sponsor IX LLC
Security: Churchill Capital Corp IX Class A Ordinary Shares, $0.0001 par value
Symbol: CCIX
Shares outstanding: 36.6M shares
Disclosed Ownership: 7.91M shares
Ownership: 21.6%
Form type: SCHEDULE 13D/A
Filing time: 22 Sep 2025, 19:15:42 UTC
Date of event: 18 Sep 2025
Previous filing: 10 Jun 2025
SEC: View on sec.gov

Reporting Managers (3)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Churchill Sponsor IX LLC	21.6%	7.91M	7.91M	0	By: M Klein Associates, Inc., its managing member /s/ Jay Taragin	Jay Taragin / Authorized Signatory	0001848785
M. Klein Associates, Inc.	21.6%	7.91M	0	7.91M	/s/ Jay Targin	Jay Taragin / Authorized Signatory
Michael Klein	21.6%	7.91M	0	7.91M	/s/ Michael Klein	Michael Klein