# Horizon Quantum Computing Pte. Ltd. — merger/spac_merger [pending]
Source: SEC API (secapi.ai) · situation sit_71ec5ac3374afff4e399 · retrieved 2026-08-11T15:50:21.776Z

## Overview
Horizon Quantum Computing Pte. Ltd. is a Singapore-based quantum computing company that is combining with dMY Squared Technology Group, Inc., a special purpose acquisition company, in a business combination transaction.

dMY Squared Technology Group, Inc., Horizon Quantum Holdings Ltd., and Horizon Quantum Computing Pte. Ltd. entered into Subscription Agreements on December 4, 2025 and March 6, 2026 with institutional and accredited investors for a private placement (PIPE Investment) of approximately $111.9 million of Holdco's Class A ordinary shares at the Redemption Price. On March 9, 2026, the parties executed an amendment allowing PIPE investors to elect to reduce their PIPE share purchase obligations on a one-for-one basis by using either shares of dMY Class A common stock they currently own or shares purchased in open-market transactions at prices below the Redemption Price, with such election to be made no later than one business day prior to the redemption deadline for dMY's special meeting. The reduction right is subject to conditions including restrictions on transferring such shares prior to business combination closing, voting requirements, and non-exercise of redemption rights.

## Terms
- Counterparty: PIPE Investors (institutional and accredited investors, qualified institutional buyers and strategic investors) · Deal value: $111.9M · Consideration: stock

## Key dates
- Announced 2026-01-12

## Timeline
- 2026-01-12 · 425 (0001213900-26-003253): 425 - Horizon Quantum Computing Pte. Ltd. — *Horizon Quantum Computing Pte. Ltd. develops quantum computing processors and related quantum computing technology.* 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 effect a merger. The transaction includes an approximately $110 million PIPE (private investment in public equity) financing. A registration statement on Form F-4 will be filed with the SEC, and dMY shareholders will vote on the business combination at a special meeting. The combined entity will be listed on a major U.S. exchange (NYSE, NYSE American, or Nasdaq).
  https://www.sec.gov/Archives/edgar/data/2088257/0001213900-26-003253.txt
- 2026-01-20 · 425 (0001213900-26-005423): 425 - Horizon Quantum Computing Pte. Ltd. — *Horizon Quantum Computing develops hardware-agnostic quantum software infrastructure, including its Triple Alpha integrated development environment, to enable developers to build and deploy quantum applications across multiple quantum computing platforms.* Horizon Quantum Computing Pte. Ltd. is combining with dMY Squared Technology Group, Inc., a blank-check company, pursuant to a business combination agreement dated September 9, 2025. The transaction includes a private placement (PIPE) of approximately $110 million of Holdco's Class A ordinary shares. Horizon Quantum Holdings Ltd. (Holdco) and the parties have filed a Form F-4 registration statement with the SEC. The combined entity will be listed on a major U.S. exchange (NYSE, NYSE American, or Nasdaq) following closing.
  https://www.sec.gov/Archives/edgar/data/2088257/0001213900-26-005423.txt
- 2026-01-27 · 425 (0001213900-26-007869): 425 - Horizon Quantum Computing Pte. Ltd. — *Horizon Quantum Computing develops quantum software development tools and infrastructure, including its Triple Alpha integrated development environment, to enable developers to solve computational problems using quantum computing; the company has invested approximately $2.6 million in constructing a quantum computer testbed system in Singapore.* Horizon Quantum Computing Pte. Ltd. is combining with dMY Squared Technology Group, Inc., a blank-check company, pursuant to a Business Combination Agreement dated September 9, 2025. The transaction includes a private placement (PIPE) of approximately $110 million of Holdco's Class A ordinary shares. Horizon Quantum Holdings Ltd. (Holdco) and Horizon Quantum have filed a Form F-4 registration statement with preliminary proxy and prospectus materials. The Business Combination is subject to shareholder approval at a special meeting of dMY Squared shareholders, with definitive proxy materials to be mailed following effectiveness of the registration statement.
  https://www.sec.gov/Archives/edgar/data/2088257/0001213900-26-007869.txt
- 2026-03-09 · 425 (0001213900-26-025047): 425 - Horizon Quantum Computing Pte. Ltd. — *Horizon Quantum Computing Pte. Ltd. is a pioneer of software infrastructure for quantum applications, founded in 2018 by Dr. Joe Fitzsimons; it develops advanced software development tools including its integrated development environment, Triple Alpha, enabling developers to write hardware-agnostic quantum programs.* Horizon Quantum Computing Pte. Ltd. announced a business combination with dMY Squared Technology Group, Inc., following which Horizon Quantum will appoint four new board members: Danielle Lambert (formerly Apple), Peter Oey (Grab CFO), Jill Turner (Broadcom CHRO), and Harry You (dMY Chairman). Additionally, Catherine Fitzsimons (currently Fidelity International) will join in May 2026 as Chief Legal and Compliance Officer, EVP of Strategic Initiatives, and Company Secretary. The business combination agreement was dated September 9, 2025, and includes a private placement (PIPE Transaction) of approximately $111.9 million of Horizon Quantum Class A ordinary shares with institutional and accredited investors.
  https://www.sec.gov/Archives/edgar/data/2088257/0001213900-26-025047.txt
- 2026-03-09 · 425 (0001213900-26-025077): 425 - Horizon Quantum Computing Pte. Ltd. — *Horizon Quantum Computing develops quantum software infrastructure and development tools, including its integrated development environment Triple Alpha, to enable developers to write hardware-agnostic quantum programs.* Horizon Quantum Computing Pte. Ltd. and dMY Squared Technology Group, Inc. announced a previously disclosed business combination. The transaction includes a private placement (PIPE Transaction) of approximately $111.9 million of Horizon Quantum's Class A ordinary shares with institutional and accredited investors, qualified institutional buyers, and strategic investors. A registration statement on Form F-4 became effective on February 17, 2026, and dMY filed a definitive proxy statement/prospectus the same day for a special meeting of shareholders to vote on the business combination. The parties also entered into a side letter dated December 4, 2025, with IonQ, Inc.
  https://www.sec.gov/Archives/edgar/data/2088257/0001213900-26-025077.txt
- 2026-03-09 · 425 (0001213900-26-025078): 425 - Horizon Quantum Computing Pte. Ltd. — *Horizon Quantum Computing develops quantum software infrastructure and programming tools, including its Triple Alpha integrated development environment, to enable developers to write hardware-agnostic quantum programs and solve complex computational problems.* Horizon Quantum Computing Pte. Ltd. announced a business combination with dMY Squared Technology Group, Inc. (a blank-check company) valued at $546 million, announced in September 2025. The transaction includes a private placement (PIPE) of approximately $111.9 million of Horizon Quantum's Class A ordinary shares with institutional and accredited investors. A Form F-4 registration statement was filed and became effective on February 17, 2026, with a definitive proxy statement/prospectus mailed the same day to dMY shareholders for voting on the business combination at a special meeting.
  https://www.sec.gov/Archives/edgar/data/2088257/0001213900-26-025078.txt
- 2026-03-10 · 425 (0001213900-26-025296): 425 - Horizon Quantum Computing Pte. Ltd. — *Horizon Quantum Computing Pte. Ltd. is a Singapore-based quantum computing company that is combining with dMY Squared Technology Group, Inc., a special purpose acquisition company, in a business combination transaction.* dMY Squared Technology Group, Inc., Horizon Quantum Holdings Ltd., and Horizon Quantum Computing Pte. Ltd. entered into Subscription Agreements on December 4, 2025 and March 6, 2026 with institutional and accredited investors for a private placement (PIPE Investment) of approximately $111.9 million of Holdco's Class A ordinary shares at the Redemption Price. On March 9, 2026, the parties executed an amendment allowing PIPE investors to elect to reduce their PIPE share purchase obligations on a one-for-one basis by using either shares of dMY Class A common stock they currently own or shares purchased in open-market transactions at prices below the Redemption Price, with such election to be made no later than one business day prior to the redemption deadline for dMY's special meeting. The reduction right is subject to conditions including restrictions on transferring such shares prior to business combination closing, voting requirements, and non-exercise of redemption rights.
  https://www.sec.gov/Archives/edgar/data/2088257/0001213900-26-025296.txt

## Citations
- 0001213900-26-003253 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026003253
- 0001213900-26-005423 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026005423
- 0001213900-26-007869 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026007869
- 0001213900-26-025047 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026025047
- 0001213900-26-025077 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026025077
- 0001213900-26-025078 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026025078
- 0001213900-26-025296 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026025296