# EDGAR Filing Document

**Accession Number:** 0002007825
**File Stem:** 0002109180-26-000006
**Filing Date:** 2026-2
**Character Count:** 8931
**Document Hash:** bbc359cdda887f7108ca30679b731845
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002109180-26-000006.hdr.sgml**: 20260218

**ACCESSION NUMBER**: 0002109180-26-000006

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260213

**FILED AS OF DATE**: 20260218

**DATE AS OF CHANGE**: 20260218

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Kinsella Matthew John
- **CENTRAL INDEX KEY:** 0002109180

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42646
- **FILM NUMBER:** 26645603

**MAIL ADDRESS:**
- **STREET 1:** C/O COLDQUANTA, INC.
- **STREET 2:** 1315 WEST CENTURY DRIVE, SUITE 150
- **CITY:** LOUISVILLE
- **STATE:** CO
- **ZIP:** 80027
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Churchill Capital Corp X/Cayman
- **CENTRAL INDEX KEY:** 0002007825
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 640 FIFTH AVENUE 14TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019
- **BUSINESS PHONE:** 2123807500

**MAIL ADDRESS:**
- **STREET 1:** 640 FIFTH AVENUE 14TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10019

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Kinsella Matthew John<br><sub>(Last) (First) (Middle)</sub><br>C/O INFLEQTION, INC.<br>1315 WEST CENTURY DRIVE, SUITE 150<br><sub>(Street)</sub><br>LOUISVILLE, CO 80027<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-02-13 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Chief Executive Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Churchill Capital Corp X/Cayman [ INFQ ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-02-13 |  | A<sup>(1)</sup> |  | 560327 | A | 0<sup>(1)</sup> | 560327 | I | See footnote<sup>(2)</sup> |
| Common Stock | 2026-02-13 |  | A<sup>(1)</sup> |  | 34740 | A | 0<sup>(1)</sup> | 34740 | I | See footnote<sup>(3)</sup> |
| Common Stock | 2026-02-13 |  | A<sup>(1)</sup> |  | 101882 | A | 0<sup>(1)</sup> | 101882 | I | See footnote<sup>(4)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (Right to Buy) | $0.90 | 2026-02-13 |  | A<sup>(1)</sup> |  | 5950380 |  | <sup>(5)</sup> | 2034-06-05 | Common Stock | 5950380 | <sup>(6)</sup> | 5950380 | D |  |
| Stock Option (Right to Buy) | $0.90 | 2026-02-13 |  | A<sup>(1)</sup> |  | 1889829 |  | <sup>(7)</sup> | 2034-06-05 | Common Stock | 1889829 | <sup>(6)</sup> | 1889829 | I | See footnote<sup>(2)</sup> |
| Stock Option (Right to Buy) | $13.22 | 2026-02-13 |  | A |  | 481727 |  | <sup>(8)</sup> | 2036-02-12 | Common Stock | 481727 | $0 | 481727 | D |  |

---

### Footnotes:

(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.

**Signature:** /s/ Jason D. Hall, Attorney-in-Fact  
**Date:** 2026-02-18

### Remarks:

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.**