dMY Squared Technology Group, Inc.

Item 5.07 Submission of Matters to a Vote of Security Holders. On March 17, 2026, dMY Squared Technology Group, Inc., a Massachusetts corporation (“DMY”), held a special meeting of shareholders (the “Special Meeting”) in virtual format. DMY’s stockholders voted on the following proposals at the Special Meeting, each of which was approved. The final vote tabulation for each proposal is set forth below The Business Combination Proposal: To approve and adopt the Business Combination Agreement, dated as of September 9, 2025 (as it may be amended, restated, supplemented, or otherwise modified from time to time, the “Business Combination Agreement”), by and among DMY, Horizon Quantum Holdings Ltd. (formerly known as Horizon Quantum Holdings Pte. Ltd. and Rose Holdco Pte. Ltd.), a Singapore public company limited by shares (“Holdco”), Rose Acquisition Pte. Ltd., a Singapore private company l... For Against Abstain ─────────────────────────────────────── 2,167,706 65,194 380 The Advisory Organizational Documents Proposals: To consider and vote upon the following seven separate proposals (collectively, the “Advisory Organizational Documents Proposals”) to approve on a non-binding and advisory basis only the following material differences between DMY’s amended and restated articles of association (the “DMY Articles”) and DMY’s bylaws (the “DMY Bylaws”), on the one hand, and the Holdco A&R Constitution, on the other hand: ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── Advisory Organizational Documents Proposal 2(a) — Change in Authorized Share Capital: to provide advisory approval of the absence of any provisions in the Holdco A&R Constitution relating to a cap on the number of authorized shares of Holdco, and the inclusion of the provision that, subject to the Companies Act 1967 of Singapore and the Holdco A&R Constitution, no shares may be issued by the directors of Holdco without the prior approval of Holdco shareholders in general meeting, to align... For Against Abstain ─────────────────────────────────────── 2,165,041 67,262 977 Advisory Organizational Documents Proposal 2(b) — Removal of Directors: to provide advisory approval of the inclusion of provisions in the Holdco A&R Constitution providing that Holdco may in a general meeting, subject to any requirements of the Companies Act 1967 of Singapore, by ordinary resolution of which special notice has been given to all shareholders entitled to receive notices, from time to time remove any director before the expiration of their period of office. ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── For Against Abstain ─────────────────────────────────────── 2,230,360 2,280 640 Advisory Organizational Documents Proposal 2(c) — Shareholder Right to Call Meetings: to provide advisory approval of the inclusion of provisions in the Holdco A&R Constitution providing that extraordinary general meetings of shareholders may be called by the board of directors of Holdco, and shall also be convened on such requisition by shareholders representing not less than 10% of the total number of paid up shares as of the date of deposit of the requisition carrying the right to vote... ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── For Against Abstain ─────────────────────────────────────── 2,230,810 2,030 440 Advisory Organizational Documents Proposal 2(d) — Quorum: to provide advisory approval of the inclusion of provisions in the Holdco A&R Constitution that provide not less than one-third of the issued Holdco Ordinary Shares present in person or by proxy or attorney as quorum for any meeting of Holdco shareholders. For Against Abstain ─────────────────────────────────────── 2,167,416 65,324 540 Advisory Organizational Documents Proposal 2(e) — Dual Class Share Structure: to provide advisory approval of each outstanding (i) Holdco Class A Ordinary Share being entitled to one (1) vote per share and (ii) Holdco Class B Ordinary Share being entitled to three (3) votes per share. For Against Abstain ─────────────────────────────────────── 2,164,645 67,145 1,490 Advisory Organizational Documents Proposal 2(f) — Declassified Board: to provide advisory approval of the absence of any provisions in the Holdco A&R Constitution that would create a classified board of directors that is currently present in the DMY Articles. For Against Abstain ─────────────────────────────────────── 2,229,200 2,280 1,800 Advisory Organizational Documents Proposal 2(g) — Removal of Blank Check Company Provisions: to provide advisory approval of the absence of certain blank check provisions in the Holdco A&R Constitution that will not be necessary to include in the Holdco A&R Constitution following the consummation of the Business Combination. For Against Abstain ─────────────────────────────────────── 2,166,845 64,995 1,440 As there were sufficient votes to approve the Business Combination Proposal, the “Adjournment Proposal” described in the DMY’s definitive proxy statement filed with the U.S. Securities and Exchange Commission on February 17, 2026 was not required and DMY did not call the vote on that proposal.