DAVID B. SINGER - 13 Feb 2026 Form 3 Insider Report for Churchill Capital Corp X/Cayman (CCCX)

Role: Director
Signature: /s/ Jason D. Hall, Attorney-in-Fact
Issuer symbol: CCCX
Transactions as of: 13 Feb 2026
Net transactions value: $0
Form type: 3
Filing time: 18 Feb 2026, 08:35:58 UTC
Previous filing: 18 Feb 2022
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SINGER DAVID B	Director	C/O INFLEQTION, INC., 1315 WEST CENTURY DRIVE, SUITE 150, LOUISVILLE	/s/ Jason D. Hall, Attorney-in-Fact	18 Feb 2026	0001240366

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	CCCX	Common Stock						75,700	13 Feb 2026	See footnote	F1, F2
holding	CCCX	Common Stock						135,800	13 Feb 2026	See footnote	F2, F3
holding	CCCX	Common Stock						6,217,382	13 Feb 2026	See footnote	F2, F4
holding	CCCX	Common Stock						527,861	13 Feb 2026	See footnote	F2, F5
holding	CCCX	Common Stock						9,816,912	13 Feb 2026	See footnote	F2, F6
holding	CCCX	Common Stock						2,879,769	13 Feb 2026	See footnote	F2, F7

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

Explanation of Responses:

Id	Content
F1	Held directly by Maverick Long Fund, Ltd. ("Maverick Long Fund"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his interest in the carried interest of Maverick Long Fund.
F2	The Reporting Person disclaims, for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, beneficial ownership of these securities, except to the extent of his pecuniary interest therein.
F3	Held directly by Maverick Fund II, Ltd. ("Maverick Fund II"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his interest in the carried interest of Maverick Fund II.
F4	Held directly by Maverick Advisors Fund, L.P. ("Maverick Advisors Fund"). Maverick Capital Ventures, LLC ("Maverick Ventures") is the general partner of Maverick Advisors Fund. The Reporting Person is a managing partner of Maverick Ventures.
F5	Held directly by Maverick Designated Investments Fund, L.P. ("MDI"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his interest in the carried interest of MDI.
F6	Held directly by Maverick Ventures Investment Fund, L.P. ("Maverick Ventures Fund"). Maverick Ventures is the general partner of Maverick Ventures Fund.
F7	Held directly by Maverick Silicon Fund, L.P. ("Maverick Silicon Fund"). The Reporting Person may be deemed to have a pecuniary interest in such securities by virtue of his interest in the carried interest of Maverick Silicon Fund.