# dMY Squared Technology Group, Inc. (DMYYU) — merger/spac_merger [completed]
Source: SEC API (secapi.ai) · situation sit_d948e19a0b16829b76f8 · retrieved 2026-08-11T16:13:53.388Z

## Overview
dMY Squared Technology Group, Inc. is a blank-check company pursuing a business combination with Horizon Quantum Holdings Ltd. and Horizon Quantum Computing Pte. Ltd., quantum computing entities.

dMY Squared Technology Group, Inc., Horizon Quantum Holdings Ltd., and Horizon Quantum Computing Pte. Ltd. executed amendments on March 9, 2026 to PIPE Subscription Agreements originally entered into on December 4, 2025 and March 6, 2026. The amendments grant PIPE investors a "Reduction Right" allowing them to satisfy their PIPE Investment obligations by using shares of dMY Class A common stock they currently own or purchase in open-market transactions at prices below the Redemption Price, reducing their obligation to purchase PIPE Shares on a one-for-one basis. The PIPE Investment involves approximately $111.9 million of Holdco's Class A ordinary shares at the Redemption Price. Investors exercising the Reduction Right using open-market purchases must agree not to sell such shares prior to business combination closing, abstain from voting on the business combination, and waive redemption rights. Investors using currently owned shares must vote in favor of the business combination and also waive redemption rights.

## Terms
- Counterparty: Horizon Quantum Holdings Ltd. and Horizon Quantum Computing Pte. Ltd. · Deal value: $111.9M · Consideration: stock · Price/share: $11.74

## Key dates
- Announced 2026-01-12 · Record 2026-02-06 · Vote 2026-03-17 · Completed 2026-03-20

## Timeline
- 2026-01-12 · 425 (0001829126-26-000217): 425 - dMY Squared Technology Group, Inc. — *dMY Squared Technology Group, Inc. is a blank check company (SPAC) incorporated in Massachusetts that seeks to identify and complete a business combination with an operating company.* dMY Squared Technology Group, Inc. entered into a business combination agreement on September 9, 2025, with Horizon Quantum Holdings Pte. Ltd. (Holdco) and Horizon Quantum Computing Pte. Ltd. (Horizon) to combine the companies. The transaction includes an approximately $110 million PIPE (private investment in public equity) financing. Following the business combination, Holdco will file a registration statement on Form F-4 with the SEC, and dMY shareholders will vote on the transaction at a special meeting. The combined entity is expected to be listed on a major U.S. stock exchange (NYSE, NYSE American, or Nasdaq).
  https://www.sec.gov/Archives/edgar/data/1915380/0001829126-26-000217.txt
- 2026-02-17 · DEFM14A (0001213900-26-017460): DEFM14A - dMY Squared Technology Group, Inc. — *Horizon Quantum Computing develops operating systems software and software development tools for quantum computing and related services.* On September 9, 2025, dMY Squared Technology Group, Inc. (a SPAC) entered into a Business Combination Agreement with Horizon Quantum Holdings Pte. Ltd. (Holdco), Rose Acquisition Pte. Ltd. (Merger Sub 1), Horizon Merger Sub 2, Inc. (Merger Sub 2), and Horizon Quantum Computing Pte. Ltd. (Horizon). The transaction values Horizon at $503 million (reflecting $3 million of SAFE financing raised prior to execution plus $4.884 million raised as of the filing date). The business combination involves: (1) conversion of Holdco from a Singapore private company to a public company and adoption of amended constitution; (2) amalgamation of Merger Sub 1 and Horizon under Singapore law, with Horizon surviving as a wholly-owned subsidiary of Holdco; (3) merger of Merger Sub 2 with and into DMY, with DMY surviving as a wholly-owned subsidiary of Holdco; and (4) related transactions. Horizon shareholders will receive Holdco Ordinary Shares at an estimated exchange ratio of approximately 2.46 shares per Horizon Ordinary Share (based on a Redemption Price of $11.74 and Fully Diluted Horizon Capitalization of 17,576,557 shares). The Horizon Founder will receive Holdco Class B Ordinary Shares (with 3 votes per share), while other Horizon shareholders will receive Holdco Class A Ordinary Shares (with 1 vote per share). Additionally, on December 4, 2025, PIPE Investors agreed to purchase $110,412,500 of Holdco Class A Ordinary Shares at the Redemption Price.
  https://www.sec.gov/Archives/edgar/data/1915380/0001213900-26-017460.txt
- 2026-03-09 · 425 (0001829126-26-002099): 425 - dMY Squared Technology Group, Inc. — *dMY Squared Technology Group, Inc. is a blank-check company pursuing a business combination with Horizon Quantum Holdings Ltd. and Horizon Quantum Computing Pte. Ltd., quantum computing entities.* dMY Squared Technology Group, Inc., Horizon Quantum Holdings Ltd., and Horizon Quantum Computing Pte. Ltd. executed amendments on March 9, 2026 to PIPE Subscription Agreements originally entered into on December 4, 2025 and March 6, 2026. The amendments grant PIPE investors a "Reduction Right" allowing them to satisfy their PIPE Investment obligations by using shares of dMY Class A common stock they currently own or purchase in open-market transactions at prices below the Redemption Price, reducing their obligation to purchase PIPE Shares on a one-for-one basis. The PIPE Investment involves approximately $111.9 million of Holdco's Class A ordinary shares at the Redemption Price. Investors exercising the Reduction Right using open-market purchases must agree not to sell such shares prior to business combination closing, abstain from voting on the business combination, and waive redemption rights. Investors using currently owned shares must vote in favor of the business combination and also waive redemption rights.
  https://www.sec.gov/Archives/edgar/data/1915380/0001829126-26-002099.txt
- 2026-03-09 · 425 (0001829126-26-002044): 425 - dMY Squared Technology Group, Inc. — *dMY Squared Technology Group, Inc. is a blank-check company pursuing a business combination with Horizon Quantum Computing, a Singapore-based quantum computing company.* dMY Squared Technology Group, Inc., Horizon Quantum Holdings Ltd. (Holdco), and Horizon Quantum Computing Pte. Ltd. are pursuing a business combination announced on September 9, 2025. On March 6, 2026, the parties entered into additional PIPE subscription agreements with institutional and accredited investors to raise an additional $1,450,000 of Holdco's Class A ordinary shares at the Redemption Price. As of the filing date, the aggregate PIPE Investment totaled $111,862,500. The underlying Form F-4 registration statement became effective on February 17, 2026, and dMY filed its definitive proxy statement the same day for shareholder voting on the business combination.
  https://www.sec.gov/Archives/edgar/data/1915380/0001829126-26-002044.txt
- 2026-03-20 · 8-K (0001829126-26-002579): 8-K 8-K
  https://www.sec.gov/Archives/edgar/data/1915380/000182912626002579/dmysquared_8k.htm

## Citations
- 0001829126-26-000217 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000182912626000217
- 0001213900-26-017460 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026017460
- 0001829126-26-002099 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000182912626002099
- 0001829126-26-002044 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000182912626002044
- 0001829126-26-002579 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000182912626002579