Horizon Quantum holders report change in >5% ownership
Horizon Quantum Holdings Ltd. filings state that ICS Opportunities, Ltd., Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander reported coordinated ownership information relating to Class A Ordinary Shares.
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Horizon Quantum Holdings Ltd. filings state that ICS Opportunities, Ltd., Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander reported coordinated ownership information relating to Class A Ordinary Shares. The filing notes these reporting persons acquired beneficial ownership in excess of 5% on 06/17/2026 and by the filing date ceased to be beneficial owners of more than 5%.
The cover data shows shared voting and dispositive power values reported as 17,500 and 20,632 shares for certain reporting persons, and a Joint Filing Agreement dated June 24, 2026.
Insights
Institutional holders reported brief >5% ownership then reduced below the threshold.
The schedule documents that multiple related entities and an individual reported beneficial ownership activity tied to Class A Ordinary Shares, with an acquisition date of 06/17/2026 followed by a position change before the filing. The filing is organized as a joint disclosure among the four reporting persons.
Key dependencies are the voting/dispositive figures listed (17,500 and 20,632 shares) and the Joint Filing Agreement dated June 24, 2026. Subsequent public filings will show any further position changes.
Key Figures
Acquired over 5% on:06/17/2026Shared dispositional power (ICS Opportunities):17,500 sharesShared dispositional power (Millennium entities/Englander):20,632 shares+1 more
4 metrics
Acquired over 5% on06/17/2026Date reporting persons acquired beneficial ownership >5%
Shared dispositional power (ICS Opportunities)17,500 sharesShared voting/dispositive power reported on cover page
Shared dispositional power (Millennium entities/Englander)20,632 sharesShared voting/dispositive power reported on cover pages
"After acquiring beneficial ownership of more than 5% of the outstanding Class A Ordinary Shares"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Joint Filing Agreementregulatory
"Exhibit I: Joint Filing Agreement, dated as of June 24, 2026"
Rule 13d-3(d)(1)(i)regulatory
"gives effect to shares deemed to be outstanding as provided in Rule 13d-3(d)(1)(i)"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did Horizon Quantum (HQ) Schedule 13G report about ownership?
The filing states coordinated reporting by ICS Opportunities, Millennium Management entities and Israel A. Englander. It records an acquisition over 5% on 06/17/2026, with the holders reduced below the 5% threshold by the filing date.
How many shares of HQ are listed under shared power in the filing?
The cover entries show shared voting/dispositive powers of 17,500 and 20,632 shares for the reporting persons. These counts appear on each cover page as the reported shared power amounts.
Who signed the Schedule 13G for Horizon Quantum (HQ)?
Signatures include Israel A. Englander and Gil Raviv (Global General Counsel) signing on behalf of the reporting persons, with signature dates shown as 06/24/2026 on the filing.
Did the filing form a reporting group for HQ ownership?
Yes. The filing attaches a Joint Filing Agreement among ICS Opportunities, Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander dated June 24, 2026, indicating coordinated reporting as a group.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Horizon Quantum Holdings Ltd.
(Name of Issuer)
Class A Ordinary Shares, no par value
(Title of Class of Securities)
Y4000A102
(CUSIP Number)
06/17/2026
(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)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
Y4000A102
1
Names of Reporting Persons
ICS Opportunities, Ltd.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
CAYMAN ISLANDS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
17,500.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
17,500.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
17,500.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.1 %
12
Type of Reporting Person (See Instructions)
CO
SCHEDULE 13G
CUSIP Number(s):
Y4000A102
1
Names of Reporting Persons
Millennium Management LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
20,632.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
20,632.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
20,632.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.1 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
Y4000A102
1
Names of Reporting Persons
Millennium Group Management LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
20,632.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
20,632.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
20,632.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.1 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
Y4000A102
1
Names of Reporting Persons
Israel A. Englander
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
20,632.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
20,632.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
20,632.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.1 %
12
Type of Reporting Person (See Instructions)
IN
SCHEDULE 13G
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:
ICS Opportunities, Ltd.
Millennium Management LLC
Millennium Group Management LLC
Israel A. Englander
(b)
Address or principal business office or, if none, residence:
ICS Opportunities, Ltd.
c/o Millennium Management LLC
399 Park Avenue
New York, New York 10022
Millennium Management LLC
399 Park Avenue
New York, New York 10022
Millennium Group Management LLC
399 Park Avenue
New York, New York 10022
Israel A. Englander
c/o Millennium Management LLC
399 Park Avenue
New York, New York 10022
(c)
Citizenship:
ICS Opportunities, Ltd. - Cayman Islands
Millennium Management LLC - Delaware
Millennium Group Management LLC - Delaware
Israel A. Englander - United States
(d)
Title of class of securities:
Class A Ordinary Shares, no par value
(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);
(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:
See response to Item 9 on each cover page.
After acquiring beneficial ownership of more than 5% of the outstanding Class A Ordinary Shares on June 17, 2026, the reporting persons ceased to be beneficial owners of more than 5% of the outstanding Class A Ordinary Shares by the date of this filing.
(b)
Percent of class:
See response to Item 11 on each cover page.
For each reporting person, the percent of the class reported herein as beneficially owned by such reporting person gives effect to shares deemed to be outstanding as provided in Rule 13d-3(d)(1)(i), if any, presuming that all those warrants to purchase shares of the class reported herein that are held or otherwise controlled by any reporting person are exercisable within sixty days of the date hereof.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
See response to Item 5 on each cover page.
(ii) Shared power to vote or to direct the vote:
See response to Item 6 on each cover page.
(iii) Sole power to dispose or to direct the disposition of:
See response to Item 7 on each cover page.
(iv) Shared power to dispose or to direct the disposition of:
See response to Item 8 on each cover page.
The securities disclosed herein as potentially beneficially owned by Millennium Management LLC, Millennium Group Management LLC and Mr. Englander are held by entities subject to voting control and investment discretion by Millennium Management LLC and/or other investment managers that may be controlled by Millennium Group Management LLC (the managing member of Millennium Management LLC) and Mr. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). The foregoing should not be construed in and of itself as an admission by Millennium Management LLC, Millennium Group Management LLC or Mr. Englander as to beneficial ownership of the securities held by such entities.
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.
See Exhibit I
Item 9.
Notice of Dissolution of Group.
Not Applicable
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.
Exhibit I: Joint Filing Agreement, dated as of June 24, 2026, by and among ICS Opportunities, Ltd., Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander.
