Michael Klein - May 15, 2025 Form 4 Insider Report for Churchill Capital Corp X/Cayman (CCCXU)

Role: Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10%+ Owner
Signature: /s/ Michael Klein
Stock symbol: CCCXU
Transactions as of: May 15, 2025
Transactions value $: $3,000,000
Form type: 4
Date filed: 5/19/2025, 04:05 PM
Previous filing: May 14, 2025
SEC: View on sec.gov

Reporting Owners (2)

Name	Relationship	Address	Signature	Signature date	CIK
Klein Michael Stuart	Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10%+ Owner	640 FIFTH AVENUE, 14TH FLOOR, NEW YORK	/s/ Michael Klein	2025-05-19	0001327392
M. Klein Associates, Inc.	10%+ Owner	640 FIFTH AVENUE, 14TH FLOOR, NEW YORK	M. Klein Associates, Inc., By: /s/ Jay Taragin, Name: Jay Taragin, Title: Authorized Person	2025-05-19	0001751504

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CCCXU	Class A Ordinary Shares	Purchase	$3M	+300K	+2.9%	$10.00	10.7M	May 15, 2025	See footnote	F1, F2

Showing 1 to 1 of 1 entries

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents (1) shares underlying the private placement units (each unit consisting of one Class A ordinary share and one-quarter of one warrant, each whole warrant exercisable to purchase one Class A ordinary share) directly held by Churchill Sponsor X LLC (the "Sponsor"), and which were acquired pursuant to a Private Placement Units Purchase Agreement by and between the Sponsor and Churchill Capital Corp X (the "Issuer"); and (2) 10,350,000 Class B ordinary shares, which shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286799) and the registration statement on Form S-1MEF (File No. 333-287245).
F2	Michael Klein, the Chief Executive Officer, President and a director of the Issuer, is the controlling shareholder of M. Klein Associates, Inc., which is the managing member of the Sponsor and has voting and investment discretion with respect to the securities held by the Sponsor. As such, Mr. Klein may be deemed to possess beneficial ownership of the securities held directly by the Sponsor. Mr. Klein disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Content

Represents (1) shares underlying the private placement units (each unit consisting of one Class A ordinary share and one-quarter of one warrant, each whole warrant exercisable to purchase one Class A ordinary share) directly held by Churchill Sponsor X LLC (the "Sponsor"), and which were acquired pursuant to a Private Placement Units Purchase Agreement by and between the Sponsor and Churchill Capital Corp X (the "Issuer"); and (2) 10,350,000 Class B ordinary shares, which shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination on a one-for-one basis, or at any time prior to the Issuer's initial business combination, at the option of the holder, subject to adjustment as described under the heading "Description of Securities--Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-286799) and the registration statement on Form S-1MEF (File No. 333-287245).

Michael Klein, the Chief Executive Officer, President and a director of the Issuer, is the controlling shareholder of M. Klein Associates, Inc., which is the managing member of the Sponsor and has voting and investment discretion with respect to the securities held by the Sponsor. As such, Mr. Klein may be deemed to possess beneficial ownership of the securities held directly by the Sponsor. Mr. Klein disclaims any beneficial ownership of the reported securities other than to the extent of any pecuniary interest he may have therein, directly or indirectly.

Remarks:

Chief Executive Officer, President and Chairman of the Board of Directors