Form: 4

Statement of changes in beneficial ownership of securities

February 18, 2026

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
  
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Kinsella Matthew John

(Last) (First) (Middle)
C/O INFLEQTION, INC.
1315 WEST CENTURY DRIVE, SUITE 150

(Street)
LOUISVILLE CO 80027

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Churchill Capital Corp X/Cayman [ INFQ ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Executive Officer
3. Date of Earliest Transaction (Month/Day/Year)
02/13/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/13/2026 A(1) 560,327 A $0(1) 560,327 I See footnote(2)
Common Stock 02/13/2026 A(1) 34,740 A $0(1) 34,740 I See footnote(3)
Common Stock 02/13/2026 A(1) 101,882 A $0(1) 101,882 I See footnote(4)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $0.9 02/13/2026 A(1) 5,950,380 (5) 06/05/2034 Common Stock 5,950,380 (6) 5,950,380 D
Stock Option (Right to Buy) $0.9 02/13/2026 A(1) 1,889,829 (7) 06/05/2034 Common Stock 1,889,829 (6) 1,889,829 I See footnote(2)
Stock Option (Right to Buy) $13.22 02/13/2026 A 481,727 (8) 02/12/2036 Common Stock 481,727 $0 481,727 D
Explanation of Responses:
1. Received pursuant to the Agreement and Plan of Merger and Reorganization, dated as of September 8, 2025, by and among Churchill Capital Corp X, a Delaware corporation now known as Infleqtion, Inc. ("Acquiror"), AH Merger Sub I, Inc., a direct, wholly-owned Subsidiary of Acquiror ("Merger Sub I"), AH Merger Sub II, LLC, a direct, wholly-owned Subsidiary of Acquiror ("Merger Sub II" and together with Merger Sub I, "Merger Subs") and ColdQuanta, Inc. (the "Company") pursuant to which (a) Merger Sub I was merged with and into the Company, and the Company continued as the surviving corporation and immediately thereafter, (b) the Company merged with and into Merger Sub II, and Merger Sub II became the surviving company and continued in existence as a wholly-owned subsidiary of Acquiror (collectively, the "Mergers"). In connection with the Mergers, Acquiror changed its name to Infleqtion, Inc. (the "Issuer").
2. Held directly by Kinsella Investment Holdings, LLC. Mr. Kinsella may be deemed to beneficially own shares of Kinsella Investment Holdings, LLC by virtue of his voting power and investment power over such shares.
3. Held directly by The John R. Kinsella Children's Trust, of which the Reporting Person is co-trustee. Mr. Kinsella may be deemed to beneficially own shares of The John R. Kinsella Children's Trust by virtue of his voting power and investment power over such shares.
4. Held directly by The John R. Kinsella Revocable Living Trust, of which the Reporting Person is a trustee. Mr. Kinsella may be deemed to beneficially own shares of The John R. Kinsella Revocable Living Trust by virtue of his voting power and investment power over such shares.
5. 25% of the stock option vested and became exercisable on April 5, 2025, and thereafter vests as to 1/48th of the shares in equal monthly installments, until such time as the option is 100% vested, subject to the continuing employment of the Reporting Person on each vesting date. 2,275,146 of such shares accelerated and vested upon the closing of the Mergers. The option may be early exercised by the Reporting Person.
6. Pursuant to the Mergers, the legacy stock options of the Company were automatically converted into the right to receive stock options of the Issuer with the same terms and conditions.
7. Fully vested.
8. 1/48th of the shares underlying the option vest in equal monthly installments commencing on February 17, 2026, subject to the Reporting Person's continued service through each vesting date.
/s/ Jason D. Hall, Attorney-in-Fact 02/18/2026
** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.