# EDGAR Filing Document

**Accession Number:** 0002135670
**File Stem:** 0001628280-26-040989
**Filing Date:** 2026-6
**Character Count:** 14608
**Document Hash:** 13cd3c401a20dff619f2a2fe59987422
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-040989.hdr.sgml**: 20260604

**ACCESSION NUMBER**: 0001628280-26-040989

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260604

**FILED AS OF DATE**: 20260604

**DATE AS OF CHANGE**: 20260604

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Khan Ilyas
- **CENTRAL INDEX KEY:** 0001509509

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43328
- **FILM NUMBER:** 261066502

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR PARTNERSHIP HOUSE
- **STREET 2:** CARLISLE PLACE
- **CITY:** LONDON
- **PROVINCE COUNTRY:** X0
- **ZIP:** SW1P 1BX
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** CQ Invest I LLC
- **CENTRAL INDEX KEY:** 0002135669

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43328
- **FILM NUMBER:** 261066504

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR PARTNERSHIP HOUSE
- **STREET 2:** CARLISLE PLACE
- **CITY:** LONDON
- **PROVINCE COUNTRY:** X0
- **ZIP:** SW1P 1BX
- **BUSINESS PHONE:** 44 20 3047 1353

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR PARTNERSHIP HOUSE
- **STREET 2:** CARLISLE PLACE
- **CITY:** LONDON
- **PROVINCE COUNTRY:** X0
- **ZIP:** SW1P 1BX
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Cambridge Quantum Holdings Ltd
- **CENTRAL INDEX KEY:** 0002135683

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43328
- **FILM NUMBER:** 261066503

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR PARTNERSHIP HOUSE
- **STREET 2:** CARLISLE PLACE
- **CITY:** LONDON
- **PROVINCE COUNTRY:** X0
- **ZIP:** SW1P 1BX
- **BUSINESS PHONE:** 44 20 3047 1353

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR PARTNERSHIP HOUSE
- **STREET 2:** CARLISLE PLACE
- **CITY:** LONDON
- **PROVINCE COUNTRY:** X0
- **ZIP:** SW1P 1BX
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Shiraz Waseem
- **CENTRAL INDEX KEY:** 0002135670

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43328
- **FILM NUMBER:** 261066501

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 2ND FLOOR PARTNERSHIP HOUSE
- **STREET 2:** CARLISLE PLACE
- **CITY:** LONDON
- **PROVINCE COUNTRY:** X0
- **ZIP:** SW1P 1BX
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Quantinuum Inc.
- **CENTRAL INDEX KEY:** 0002110105
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 303 S TECHNOLOGY COURT
- **CITY:** BROOMFIELD
- **STATE:** CO
- **BUSINESS PHONE:** (855) 888-7686

**MAIL ADDRESS:**
- **STREET 1:** 303 S TECHNOLOGY COURT
- **CITY:** BROOMFIELD
- **STATE:** CO

## Ex-24

**Exhibit 24**

**POWER OF ATTORNEY FOR SECTION 16 REPORTING PURPOSES**

KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Waseem Shiraz, with full power of substitution, as the undersigned's true and lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned, Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder; (2) do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, complete and execute any amendment or amendments thereto, and timely file such forms or amendments with the United States Securities and Exchange Commission and any stock exchange or similar authority; and (3) take any other action of any type whatsoever in connection with the foregoing, which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in any such attorney-in-fact's discretion.

The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities issued by Quantinuum Inc., unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.

------

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of June 4, 2026.

---

| |
|:---|
| /s/ Ilyas Khan |
| **Ilyas Khan** |

---

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>CQ Invest I LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O CAMBRIDGE QUANTUM NORTH AMERICA<br>1300 N 17TH STREET, SUITE 530<br><sub>(Street)</sub><br>ARLINGTON, VA 22209<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Quantinuum Inc. [ QNT ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-04 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Cambridge Quantum Holdings Ltd<br><sub>(Last) (First) (Middle)</sub><br>C/O CAMBRIDGE QUANTUM NORTH AMERICA<br>1300 N 17TH STREET, SUITE 530<br><sub>(Street)</sub><br>ARLINGTON, VA 22209<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Quantinuum Inc. [ QNT ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-04 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Khan Ilyas<br><sub>(Last) (First) (Middle)</sub><br>C/O CAMBRIDGE QUANTUM NORTH AMERICA<br>1300 N 17TH STREET, SUITE 530<br><sub>(Street)</sub><br>ARLINGTON, VA 22209<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Quantinuum Inc. [ QNT ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-04 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Shiraz Waseem<br><sub>(Last) (First) (Middle)</sub><br>C/O CAMBRIDGE QUANTUM NORTH AMERICA<br>1300 N 17TH STREET, SUITE 530<br><sub>(Street)</sub><br>ARLINGTON, VA 22209<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Quantinuum Inc. [ QNT ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-06-04 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Class B Common Stock | 82884823 | I | See Footnotes<sup>(1)(2)(3)</sup> |
| Class A Common Stock | 480511 | D<sup>(4)</sup> |  |
| Class A Common Stock | 27001 | D<sup>(5)</sup> |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Common Units | <sup>(3)</sup> | <sup>(3)</sup> | Class A Common Stock | 82884823 | <sup>(3)</sup> | I | See Footnotes<sup>(1)(2)</sup> |

---

### Footnotes:

(1) Includes (i) 531,720 Common Units and a corresponding number of shares of Class B common stock held directly by CQ Invest I LLC and (ii) 82,353,103 Common Units and a corresponding number of shares of Class B common stock held directly by Cambridge Quantum Holdings Limited. Cambridge Quantum Holdings Limited is the administrative manager of CQ Invest I LLC, and has the right to manage, control and conduct the affairs and operations of CQ Invest I LLC. Cambridge Quantum Holdings Limited is managed by a board of directors, which is composed of Ilyas Khan and Waseem Shiraz, who have the power to vote or direct the vote of, and power to dispose or to direct the disposition of, the shares and units held by CQ Invest I LLC. Mr. Khan, including entities controlled by him, is the controlling shareholder of Cambridge Quantum Holdings Limited.

(2) Each of the Reporting Persons (other than to the extent it directly holds securities reported herein) disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than to the extent it directly holds securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

(3) Each common unit of Quantinuum Holdings, LLC ("Common Unit") may be redeemed or exchanged  for one share of Class A common stock of the Issuer (or, at the Issuer's election, cash). Common Units have no expiration date. Upon the redemption or exchange of Common Units, a number of shares of Class B common stock equal to the number of Common Units that are redeemed or exchanged will automatically be cancelled for no consideration.

(4) The reported securities are directly owned by Ilyas Khan in his personal capacity and the other Reporting Persons have no pecuniary interest in these securities. Includes 179,028 restricted shares units ("RSUs"), which will vest according to the terms of the award agreement. Each RSU represents a contingent right to receive one share of Class A common stock.

(5) The reported securities are directly owned by Waseem Shiraz in his personal capacity and the other Reporting Persons have no pecuniary interest in these securities. Includes 10,426 RSUs, which will vest according to the terms of the award agreement. Each RSU represents a contingent right to receive one share of Class A common stock.

**Remarks:**
Exhibit 24 - Power of Attorney

**Signature:** /s/ Waseem Shiraz, as Director of CQ Invest I LLC  
**Date:** 2026-06-04

**Signature:** /s/ Waseem Shiraz, as Director of Cambridge Quantum Holdings Limited  
**Date:** 2026-06-04

**Signature:** Ilyas Khan, /s/ Waseem Shiraz, Waseem Shiraz, Attorney-in-Fact  
**Date:** 2026-06-04

**Signature:** Waseem Shiraz, /s/ Waseem Shiraz  
**Date:** 2026-06-04

### 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.**