# EDGAR Filing Document

**Accession Number:** 0000897599
**File Stem:** 0001123292-26-000593
**Filing Date:** 2026-5
**Character Count:** 12358
**Document Hash:** e1fae6b2418035394a2e80004dabd8c2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001123292-26-000593.hdr.sgml**: 20260504

**ACCESSION NUMBER**: 0001123292-26-000593

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13G

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260504

**DATE AS OF CHANGE**: 20260504

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Xanadu Quantum Technologies Ltd
- **CENTRAL INDEX KEY:** 0002097163
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRONIC COMPUTERS [3571]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **STATE OF INCORPORATION:** A6
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95592
- **FILM NUMBER:** 26937948

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 777 BAY STREET, SUITE 2400
- **CITY:** TORONTO
- **PROVINCE COUNTRY:** A6
- **ZIP:** M5G 2C8
- **BUSINESS PHONE:** 416.304.9629

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 777 BAY STREET, SUITE 2400
- **CITY:** TORONTO
- **PROVINCE COUNTRY:** A6
- **ZIP:** M5G 2C8
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LOCKHEED MARTIN INVESTMENT MANAGEMENT CO
- **CENTRAL INDEX KEY:** 0000897599
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRONIC COMPONENTS & ACCESSORIES [3670]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 522060316
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13G

**BUSINESS ADDRESS:**
- **STREET 1:** 6801 ROCKLEDGE DR, MP150
- **CITY:** BETHESDA
- **STATE:** MD
- **ZIP:** 20817
- **BUSINESS PHONE:** 3015717120

**MAIL ADDRESS:**
- **STREET 1:** 6801 ROCKLEDGE DR, MP150
- **CITY:** BETHESDA
- **STATE:** MD
- **ZIP:** 20817

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LOCKHEED MARTIN CORP/MD
- **DATE OF NAME CHANGE:** 19970131

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MARTIN MARIETTA CORP /MD/
- **DATE OF NAME CHANGE:** 19930909

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PARENT CORP
- **DATE OF NAME CHANGE:** 19930219

## Exhibit 99.1

<u>Exhi</u><u>bit 99.1</u>

#### AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G
The undersigned hereby agree as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) The Schedule 13G is filed on behalf of each of them and that all subsequent amendments to this statement on Schedule 13D may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.

Date: May 4, 2026

---

| |
|:---|
| **LOCKHEED MARTIN INVESTMENT MANAGEMENT COMPANY**<br>|
| By: <u>/s/ Robert C. Varnell</u><br> Name: Robert C. Varnell<br> Title: Vice President & General Counsel<br>|
| **LOCKHEED MARTIN CORPORATION MASTER RETIREMENT TRUST**<br>**By: Lockheed Martin Investment Management Company, as named fiduciary**<br>|
| By: <u>/s/ Robert C. Varnell</u><br> Name: Robert C. Varnell<br> Title: Vice President & General Counsel<br>|

---

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

## SCHEDULE 13G

### Under the Securities Exchange Act of 1934

**Issuer:** Xanadu Quantum Technologies Ltd

**Title of Class of Securities:** Class B Subordinate Voting Shares, without par value share

**CUSIP Number:** —

**Date of Event Which Requires Filing of this Statement:** 03/26/2026

**Check the appropriate box to designate the rule pursuant to which this Schedule is filed:**

- [ ] Rule 13d-1(b)

- [ ] Rule 13d-1(c)

- [x] Rule 13d-1(d)

---

| 1. | Names of Reporting Persons<br>LOCKHEED MARTIN INVESTMENT MANAGEMENT CO | Names of Reporting Persons<br>LOCKHEED MARTIN INVESTMENT MANAGEMENT CO |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>DE | Citizenship or Place of Organization<br>DE |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>2308892 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>2308892 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2308892 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2308892 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.1% | Percent of Class Represented by Amount in Row (9)<br>5.1% |
| 12. | Type of Reporting Person (See Instructions)<br>CO, HC | Type of Reporting Person (See Instructions)<br>CO, HC |

---

| 1. | Names of Reporting Persons<br>Lockheed Martin Corporation Master Retirement Trust | Names of Reporting Persons<br>Lockheed Martin Corporation Master Retirement Trust |
|:---|:---|:---|:---|
| 2. | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] | Check the Appropriate Box if a Member of a Group (See Instructions)<br>(a) [ ] (b) [ ] |
| 3. | SEC Use Only | SEC Use Only |
| 4. | Citizenship or Place of Organization<br>NY | Citizenship or Place of Organization<br>NY |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 5. | Sole Voting Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 6. | Shared Voting Power<br>2308892 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 7. | Sole Dispositive Power<br>0 |
| Number of<br>Shares<br>Beneficially<br>Owned by<br>Each<br>Reporting<br>Person<br>With | 8. | Shared Dispositive Power<br>2308892 |
| 9. | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2308892 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>2308892 |
| 10. | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] | Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] |
| 11. | Percent of Class Represented by Amount in Row (9)<br>5.1% | Percent of Class Represented by Amount in Row (9)<br>5.1% |
| 12. | Type of Reporting Person (See Instructions)<br>EP | Type of Reporting Person (See Instructions)<br>EP |

---

**Item 1(a). Name of Issuer:**
Xanadu Quantum Technologies Ltd

**Item 1(b). Address of Issuer's Principal Executive Offices:**
777 Bay Street, Suite 2400, Toronto, Canada (Federal Level), M5G 2C8

**Item 2(a). Name of Person Filing:**
This Schedule 13G is being jointly filed by and on behalf of each of Lockheed Martin Investment Management Company ("LMIMCo") and Lockheed Martin Corporation Master Retirement Trust ("MRT" and together with LMIMCo, the "Reporting Persons"). MRT is an employee benefit plan trust governed by ERISA. LMIMCo is the named fiduciary of MRT and may be deemed to beneficially own securities held by MRT. 

The Reporting Persons have entered into a Joint Filing Agreement, dated May 4, 2026, a copy of which is filed with this Schedule 13G as Exhibit 99.1, pursuant to which the Reporting Persons have agreed to file this statement jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934 (the "Act").

**Item 2(b). Address of Principal Business Office:**
The principal business address of LMIMCo and MRT is c/o Lockheed Martin Investment Management Company, 6801 Rockledge Drive, MP 150, Bethesda, MD 20817.

**Item 2(c). Citizenship:**
LMIMCo is organized under the laws of the State of Delaware. MRT is established under the laws of the State of New York.

**Item 2(d). Title of Class of Securities:**
Class B Subordinate Voting Shares, without par value share

**Item 2(e). CUSIP Number:**
—

**Item 3. If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:**

(a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) [ ] An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) [ ] An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) [ ] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) [ ] A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) [ ] A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), if filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

(k) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

**Item 4. Ownership:**

**(a) Amount beneficially owned:**

2,308,892 Class B Subordinate Voting Shares.
The Reporting Persons' ownership of the Issuer's securities consists of 2,308,892 Class A Multiple Voting shares ("Class A Shares") held directly by MRT. The Class A Shares are convertible on a one-for-one basis into an equal number of Class B Subordinate Voting shares.

**(b) Percent of class:**

5.1%
The percentage of class beneficially owned is based on 43,284,436 Class B Subordinate Voting shares outstanding as of April 2, 2026, as reported in the Issuer's Annual Report on Form 20-F filed with the Securities and Exchange Commission (the "SEC") on April 9, 2026, and assumes conversion of the Class A Shares held by MRT.

**(c) Number of shares as to which the person has:**

**(i) Sole power to vote or to direct the vote:**

0

**(ii) Shared power to vote or to direct the vote:**

2,308,892

**(iii) Sole power to dispose or to direct the disposition of:**

0

**(iv) Shared power to dispose or to direct the disposition of:**

2,308,892

**Item 5. Ownership of Five Percent or Less of a Class.**

[x] If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.

**Item 6. Ownership of More than 5 Percent on Behalf of Another Person.**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification:**

—

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**LOCKHEED MARTIN INVESTMENT MANAGEMENT CO**

**Date:** 05/04/2026

**By:** /s/ Robert C. Varnell

**Name & Title:** Robert C. Varnell, Vice President & General Counsel

**Lockheed Martin Corporation Master Retirement Trust**

**Date:** 05/04/2026

**By:** /s/ Robert C. Varnell

**Name & Title:** By:  Lockheed Martin Investment Management Company, as named fiduciary. By: Robert C. Varnell, Vice President & General Counsel