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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13G
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UNDER THE SECURITIES EXCHANGE ACT OF 1934
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Horizon Quantum Holdings Ltd. (Name of Issuer) |
Class A Ordinary Shares (Title of Class of Securities) |
Y4000A102 (CUSIP Number) |
03/19/2026
(Date of Event Which Requires Filing of this Statement)
| Check the appropriate box to designate the rule pursuant to which this Schedule is filed: |
 Rule 13d-1(b)
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 Rule 13d-1(c)
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| Rule 13d-1(d)
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SCHEDULE 13G
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| CUSIP Number(s): | Y4000A102 |
| 1 | Names of Reporting Persons
Tencent Holdings Ltd | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
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| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
CAYMAN ISLANDS
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
4,175,570.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
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| 11 | Percent of class represented by amount in row (9)
13.1 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
CO |
SCHEDULE 13G
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| CUSIP Number(s): | Y4000A102 |
| 1 | Names of Reporting Persons
THL A12 Limited | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
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| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
VIRGIN ISLANDS, BRITISH
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
4,175,570.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
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| 11 | Percent of class represented by amount in row (9)
13.1 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
CO |
SCHEDULE 13G
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| Item 1. | ||
| (a) | Name of issuer:
Horizon Quantum Holdings Ltd. | |
| (b) | Address of issuer's principal executive offices:
29 Media Cir. #05-22, Singapore, 138565 | |
| Item 2. | ||
| (a) | Name of person filing:
Tencent Holdings Limited
THL A12 Limited | |
| (b) | Address or principal business office or, if none, residence:
For both Tencent Holdings Limited and THL A12 Limited:
29/F, Three Pacific Place
No. 1 Queen's Road East
Wanchai, Hong Kong | |
| (c) | Citizenship:
Tencent Holdings Limited - Cayman Islands
THL A12 Limited - British Virgin Islands | |
| (d) | Title of class of securities:
Class A Ordinary Shares | |
| (e) | CUSIP Number(s):
Y4000A102 | |
| 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);
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| (b) | Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
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| (c) | Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
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| (d) | Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
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| (e) | An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
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| (f) | An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
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| (g) | A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
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| (h) | A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
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| (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);
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| (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).
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| Item 4. | Ownership | |
| (a) | Amount beneficially owned:
THL A12 Limited beneficially owns 4,175,570 Class A Ordinary Shares.
Tencent Holdings Limited may be deemed to have beneficial ownership of 4,175,570 Class A Ordinary Shares beneficially owned by THL A12 Limited, which is a direct wholly-owned subsidiary of Tencent Holdings Limited. | |
| (b) | Percent of class:
The 4,175,570 Class A Ordinary Shares that are beneficially owned by THL A12 Limited and Tencent Holdings Limited represent approximately 13.1% of the total outstanding Class A Ordinary Shares of the Company. The foregoing calculation is based on an aggregate of 31,833,549 Class A Ordinary Shares outstanding as of March 19, 2026 according to records of the Issuer. | |
| (c) | Number of shares as to which the person has:
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| (i) Sole power to vote or to direct the vote:
See row 5 of the cover page of each reporting person. | ||
| (ii) Shared power to vote or to direct the vote:
See row 6 of the cover page of each reporting person. | ||
| (iii) Sole power to dispose or to direct the disposition of:
See row 7 of the cover page of each reporting person. | ||
| (iv) Shared power to dispose or to direct the disposition of:
See row 8 of the cover page of each reporting person. | ||
| Item 5. | Ownership of 5 Percent or Less of a Class. | |
Not Applicable
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| Item 6. | Ownership of more than 5 Percent on Behalf of Another Person. | |
Not Applicable
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| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. | |
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
See item 4. | ||
| Item 8. | Identification and Classification of Members of the Group. | |
Not Applicable
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| Item 9. | Notice of Dissolution of Group. | |
Not Applicable
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| Item 10. | Certifications: |
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. |
| 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.
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Exhibit Information
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99.1 Joint Filing Agreement, dated March 25, 2026, by and between Tencent Holdings Limited and THL A12 Limited. |