STOCK TITAN

Quantinuum (QNT) major holders report large Class B and unit positions

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3

Rhea-AI Filing Summary

Quantinuum Inc. received an initial ownership report from CQ Invest I LLC, Cambridge Quantum Holdings Limited, Ilyas Khan and Waseem Shiraz, each identified as a more‑than‑ten‑percent holder. The filing lists existing positions rather than new share purchases or sales.

The group reports indirect ownership of 82,884,823 Class B common shares and the same number of Common Units of Quantinuum Holdings, LLC, which may be redeemed or exchanged one-for-one for Class A common stock or cash, with no expiration. Footnotes explain that Cambridge Quantum Holdings Limited manages CQ Invest I LLC, that Mr. Khan controls Cambridge Quantum Holdings Limited, and that each reporting person generally disclaims beneficial ownership of securities held by the others except for any pecuniary interest. Separate footnotes state that Mr. Khan directly owns Class A common stock including 179,028 restricted share units, and Mr. Shiraz directly owns Class A common stock including 10,426 restricted share units, each RSU representing a contingent right to one Class A share.

Positive

  • None.

Negative

  • None.
Insider CQ Invest I LLC, Cambridge Quantum Holdings Ltd, Khan Ilyas, Shiraz Waseem
Role null | null | null | null
Type Security Shares Price Value
holding Common Units -- -- --
holding Class B Common Stock -- -- --
holding Class A Common Stock -- -- --
holding Class A Common Stock -- -- --
Holdings After Transaction: Common Units — 82,884,823 shares (Indirect, See Footnotes); Class B Common Stock — 82,884,823 shares (Indirect, See Footnotes); Class A Common Stock — 480,511 shares (Direct, null)
Footnotes (1)
  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. 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. 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. 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. 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.
Class B shares held indirectly 82,884,823 shares Indirect Class B common stock position reported by group
Common Units held indirectly 82,884,823 units Common Units of Quantinuum Holdings, LLC exchangeable 1:1 into Class A
Class A direct holding entry 1 27,001 shares Total Class A common shares following transaction entry
Class A direct holding entry 2 480,511 shares Total Class A common shares following transaction entry
RSUs held by Ilyas Khan 179,028 RSUs Restricted share units over Class A stock in personal capacity
RSUs held by Waseem Shiraz 10,426 RSUs Restricted share units over Class A stock in personal capacity
Common Unit exercise price $0.0000 Exercise or conversion price for Common Units into Class A
Common Units financial
"Each common unit of Quantinuum Holdings, LLC ("Common Unit") may be redeemed or exchanged for one share..."
Common units are the basic ownership stakes in a company, limited partnership, or trust that function like common stock: they give holders a claim on profits and often voting rights. Think of them as the ordinary seats at a table—the most directly affected by the business’s success or failure, so they typically offer higher upside but carry greater risk than preferred claims or creditors, which matters to investors evaluating potential return and safety.
Class B common stock financial
"Includes (i) 531,720 Common Units and a corresponding number of shares of Class B common stock..."
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
restricted shares units ("RSUs") financial
"Includes 179,028 restricted shares units ("RSUs"), which will vest according to the terms of the award agreement."
pecuniary interest financial
"disclaims beneficial ownership of the securities held by the other Reporting Persons, except to the extent of such Reporting Person's pecuniary interest therein"
Rule 16a-1(a)(4) regulatory
"pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons..."
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SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
CQ Invest I LLC

(Last)(First)(Middle)
C/O CAMBRIDGE QUANTUM NORTH AMERICA
1300 N 17TH STREET, SUITE 530

(Street)
ARLINGTON VIRGINIA 22209

(City)(State)(Zip)

UNITED STATES

(Country)
2. Date of Event Requiring Statement (Month/Day/Year)
06/04/2026
3. Issuer Name and Ticker or Trading Symbol
Quantinuum Inc. [ QNT ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
XForm filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B Common Stock82,884,823ISee Footnotes(1)(2)(3)
Class A Common Stock480,511D(4)
Class A Common Stock27,001D(5)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Common Units (3) (3)Class A Common Stock82,884,823(3)ISee Footnotes(1)(2)
1. Name and Address of Reporting Person*
CQ Invest I LLC

(Last)(First)(Middle)
C/O CAMBRIDGE QUANTUM NORTH AMERICA
1300 N 17TH STREET, SUITE 530

(Street)
ARLINGTON VIRGINIA 22209

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
Cambridge Quantum Holdings Ltd

(Last)(First)(Middle)
C/O CAMBRIDGE QUANTUM NORTH AMERICA
1300 N 17TH STREET, SUITE 530

(Street)
ARLINGTON VIRGINIA 22209

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
Khan Ilyas

(Last)(First)(Middle)
C/O CAMBRIDGE QUANTUM NORTH AMERICA
1300 N 17TH STREET, SUITE 530

(Street)
ARLINGTON VIRGINIA 22209

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
Shiraz Waseem

(Last)(First)(Middle)
C/O CAMBRIDGE QUANTUM NORTH AMERICA
1300 N 17TH STREET, SUITE 530

(Street)
ARLINGTON VIRGINIA 22209

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
Explanation of Responses:
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
/s/ Waseem Shiraz, as Director of CQ Invest I LLC06/04/2026
/s/ Waseem Shiraz, as Director of Cambridge Quantum Holdings Limited06/04/2026
Ilyas Khan, /s/ Waseem Shiraz, Waseem Shiraz, Attorney-in-Fact06/04/2026
Waseem Shiraz, /s/ Waseem Shiraz06/04/2026
** Signature of Reporting PersonDate
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 5 (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.
* Form 3: SEC 1473 (03-26)

FAQ

What does Quantinuum (QNT) disclose in this new insider ownership filing?

Quantinuum reports that CQ Invest I LLC, Cambridge Quantum Holdings Limited, Ilyas Khan and Waseem Shiraz are over 10% holders. The filing details their direct Class A holdings, large indirect Class B and Common Unit interests, and related restricted share units, without recording new purchases or sales.

How many Class B shares and Common Units are reported in the Quantinuum (QNT) filing?

The report lists 82,884,823 Class B common shares and 82,884,823 Common Units held indirectly. Each Common Unit may be redeemed or exchanged for one Class A share of Quantinuum or, at the issuer’s election, cash, and the units have no expiration date.

How are CQ Invest I LLC and Cambridge Quantum Holdings linked in Quantinuum’s (QNT) ownership?

Cambridge Quantum Holdings Limited is the administrative manager of CQ Invest I LLC and controls its affairs. Cambridge Quantum is managed by a board consisting of Ilyas Khan and Waseem Shiraz, and Mr. Khan, including entities he controls, is the controlling shareholder of Cambridge Quantum Holdings Limited.

What beneficial ownership disclaimers are included for Quantinuum (QNT) reporting persons?

Each reporting person, except to the extent it directly holds the securities, disclaims beneficial ownership of securities held by the others. They state that including these securities in the report is not an admission of beneficial ownership for Section 16 or any other legal purpose.

What restricted share units are reported for Ilyas Khan and Waseem Shiraz at Quantinuum (QNT)?

The filing states that Ilyas Khan directly owns Quantinuum Class A stock including 179,028 restricted share units, and Waseem Shiraz directly owns Class A stock including 10,426 restricted share units. Each RSU will vest under its award agreement and represents a contingent right to one Class A share.

Do the Quantinuum (QNT) Common Units automatically convert into Class A shares?

Each Common Unit of Quantinuum Holdings, LLC may be redeemed or exchanged for one Class A common share of Quantinuum Inc., or for cash at Quantinuum’s election. When Common Units are redeemed or exchanged, an equal number of Class B common shares are automatically cancelled for no consideration.