# Horizon Quantum Holdings Ltd. (HQWWW) — merger/spac_merger [pending]
Source: SEC API (secapi.ai) · situation sit_0e9a33bf26d66b8b6d90 · retrieved 2026-08-11T16:13:59.584Z

## Overview
Horizon Quantum develops quantum software infrastructure and programming tools, including its Triple Alpha integrated development environment, enabling developers to write hardware-agnostic quantum programs across multiple quantum computing platforms.

dMY Squared Technology Group, Inc., a blank-check company, is combining with Horizon Quantum Holdings Ltd. in a business combination to take Horizon Quantum public as the first quantum software company. Horizon Quantum, founded in 2018 by Dr. Joseph Fitzsimons, develops quantum software infrastructure and programming tools (Triple Alpha platform) enabling developers to write hardware-agnostic quantum programs. The company is being valued at $500 million pre-money and has raised approximately $111.9 million in a PIPE transaction from institutional, accredited, and strategic investors. The business combination agreement was dated September 9, 2025, with the registration statement becoming effective on February 17, 2026. Post-closing, Horizon Quantum will trade under the ticker symbol HQ.

## Terms
- Counterparty: Horizon Quantum Holdings Ltd. · Deal value: $500.0M

## Key dates
- Announced 2026-03-10

## Timeline
- 2026-03-10 · 425 (0001213900-26-025448): 425 - Horizon Quantum Holdings Ltd. — *Horizon Quantum Computing develops quantum software infrastructure and development tools, including its Triple Alpha integrated development environment, to enable developers to write hardware-agnostic quantum programs.* Horizon Quantum Computing Pte. Ltd. announced a previously disclosed business combination with dMY Squared Technology Group, Inc. A Form F-4 registration statement became effective on February 17, 2026, and dMY filed a definitive proxy statement/prospectus the same day for shareholder voting on the business combination. 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. The business combination agreement was dated September 9, 2025.
  https://www.sec.gov/Archives/edgar/data/2088256/0001213900-26-025448.txt
- 2026-03-11 · 425 (0001213900-26-026232): 425 - Horizon Quantum Holdings Ltd. — *Horizon Quantum develops quantum software infrastructure and programming tools, including its Triple Alpha integrated development environment, enabling developers to write hardware-agnostic quantum programs across multiple quantum computing platforms.* dMY Squared Technology Group, Inc., a blank-check company, is combining with Horizon Quantum Holdings Ltd. in a business combination to take Horizon Quantum public as the first quantum software company. Horizon Quantum, founded in 2018 by Dr. Joseph Fitzsimons, develops quantum software infrastructure and programming tools (Triple Alpha platform) enabling developers to write hardware-agnostic quantum programs. The company is being valued at $500 million pre-money and has raised approximately $111.9 million in a PIPE transaction from institutional, accredited, and strategic investors. The business combination agreement was dated September 9, 2025, with the registration statement becoming effective on February 17, 2026. Post-closing, Horizon Quantum will trade under the ticker symbol HQ.
  https://www.sec.gov/Archives/edgar/data/2088256/0001213900-26-026232.txt

## Citations
- 0001213900-26-025448 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026025448
- 0001213900-26-026232 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000121390026026232