UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): March 19, 2026

DMY SQUARED TECHNOLOGY GROUP, INC.

(Exact name of registrant as specified in its charter)

Massachusetts

001-41519

88-0748933

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

1180 North Town Center Drive, Suite 100

Las Vegas, Nevada 89144

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (702) 781-4313

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

	☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

	☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

	☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

	☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Units, each consisting of one share of Class A common stock and one-half of one redeemable warrant	DMYYU	OTC Markets Group, Inc.
Class A common stock, par value $0.0001 per share	DMYY	OTC Markets Group, Inc.
Redeemable warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share	DMYYW	OTC Markets Group, Inc.

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

~~Item 7.01 Regulation FD Disclosure~~INTRODUCTORY NOTE

On March 19, 2026, dMY Squared Technology Group, Inc. (the “Company”) ~~and~~consummated its previously announced business combination (the “Business Combination”) pursuant to the terms of the business combination agreement (the “Business Combination Agreement”), dated as of September 9, 2025, with Horizon Quantum Computing Pte. Ltd. (Company Registration No.: 201802755E), a Singapore private company limited by shares (“Horizon ~~Quantum~~”), ~~issued a joint press release announcing the completion of the previously announced business combination among the Company,~~ Horizon Quantum, ~~Horizon Quantum~~ Holdings Ltd. (formerly known as Horizon Quantum Holdings Pte. Ltd and Rose Holdco Pte. Ltd.) (Company Registration No.: 202537774K), a Singapore public company limited by shares ~~and~~(“Holdco”), ~~the~~Rose ~~other~~Acquisition ~~parties~~Pte. ~~thereto~~Ltd. ~~and~~(Company ~~related~~Registration ~~matters~~No. 202537790M), Aa ~~copy~~Singapore private company limited by shares and wholly-owned subsidiary of ~~the~~Horizon ~~press~~(“Merger ~~release~~Sub is1”), and ~~furnished~~Horizon ~~hereto~~Merger asSub ~~Exhibit~~2, 99Inc.1, a Massachusetts corporation and ~~incorporated by~~wholly-owned ~~reference~~subsidiary ~~herein~~of Horizon (“Merger Sub 2”).

~~The~~Pursuant to ~~information~~the inBusiness ~~this~~Combination ~~Item 7.01~~Agreement, ~~including~~(i) ~~Exhibit~~Holdco ~~99.1,~~converted isfrom ~~furnished~~a ~~and~~Singapore ~~shall~~private ~~not~~company beto ~~deemed~~a ~~“filed”~~Singapore ~~for~~public ~~purposes~~company, of(ii) ~~Section~~Horizon and 18Merger ofSub ~~the~~1 ~~Securities~~amalgamated, ~~Exchange~~with ~~Act~~Horizon ofsurviving ~~1934,~~ as ~~amended~~a ~~(the~~wholly-owned ~~“Exchange~~subsidiary ~~Act”),~~of orHoldco ~~otherwise~~and ~~subject~~(iii) toMerger ~~liabilities~~Sub ~~under~~2 ~~that~~merged ~~section,~~with and ~~shall not be deemed to be incorporated by reference~~ into the Company’s ~~filings~~with ~~under~~ the ~~Securities~~Company ~~Act~~surviving ~~of 1933,~~ as ~~amended~~a ~~(“Securities~~wholly-owned ~~Act”)~~subsidiary ~~or the Exchange Act, regardless~~ of ~~any general incorporation language in such filings~~Holdco.

~~Item~~As a ~~9.01~~result ~~Financial~~of ~~Statements~~the Business Combination, Holdco’s Class A ordinary shares and ~~Exhibits~~warrants began trading on The Nasdaq Stock Market LLC (“Nasdaq”) under the ticker symbols “HQ” and “HQWWW,” respectively, on March 20, 2026.

Capitalized terms used but not otherwise defined in this Current Report on Form 8-K have the meaning set forth in the Business Combination Agreement. The description of the Business Combination Agreement and related transactions (dincluding, without limitation, the Business Combination) in ~~Exhibits~~this Current Report on Form 8-K does not purport to be complete and is subject, and qualified in its entirety by reference to, the full text of the Business Combination Agreement, which is attached as Annex A to the definitive proxy statement on Schedule 14A filed by the Company with the U.S. Securities and Exchange Commission (the “SEC”) on February 17, 2026, as amended by Amendment No. 1 thereto, filed by the Company with the SEC on March 6, 2026 (collectively, the “Proxy Statement”).

Exhibit No.		Description
99.1		Press Release, dated March 19, 2026.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

Item 1.01. Entry into a Material Definitive Agreement

Filing Compare · dMY Squared Technology Group, Inc.