Exit record

Every quantum exit, with its sources.

Acquisitions, SPAC listings, IPOs and the deals that fell through, since January 2021. Each page lists the sources behind the record, official filings and company releases first.

26
Confirmed exits, closed or listed
0
Deals in progress
2
Deals that fell through
17
Distinct buyers and SPACs
2026
Aug 2026 Pasqal public listing via Bleichroeder II SPAC / de-SPAC · US$2 billion · Pasqal and Bleichroeder Acquisition Corp II Listed Aug 2026 Terra Quantum abandoned SPAC listing via Mountain Lake Public listing pathway · US$3.3 billion · Terra Quantum Abandoned Jul 2026 IonQ acquired SkyWater Technology Strategic acquisition · US$1.8 billion · SkyWater Technology and IonQ Closed Jul 2026 IQM public listing via Real Asset SPAC / de-SPAC · US$1.8 billion · IQM Quantum Computers and Real Asset Acquisition Corp. Listed Jun 2026 Quantinuum IPO on Nasdaq IPO · US$1.7 billion · Quantinuum Listed May 2026 Quantum Machines acquired QHarbor Strategic acquisition · QHarbor and Quantum Machines Closed Mar 2026 Xanadu public listing via Crane Harbor SPAC / de-SPAC · Xanadu and Crane Harbor Acquisition Corp. Listed Mar 2026 Horizon Quantum public listing via dMY Squared SPAC / de-SPAC · US$120 million · Horizon Quantum and dMY Squared Technology Group Listed Mar 2026 Quantum Computing Inc. acquired NuCrypt Strategic acquisition · US$5 million · NuCrypt and Quantum Computing Inc. Closed Feb 2026 Infleqtion public listing via Churchill Capital Corp X SPAC / de-SPAC · Infleqtion and Churchill Capital Corp X Listed Feb 2026 Quantum Computing Inc. acquired Luminar Semiconductor Strategic acquisition · US$110 million · Luminar Semiconductor and Quantum Computing Inc. Closed Jan 2026 D-Wave acquired Quantum Circuits Strategic acquisition · US$550 million · Quantum Circuits and D-Wave Quantum Closed
2025
Oct 2025 IonQ acquired Vector Atomic Strategic acquisition · Vector Atomic and IonQ Closed Sep 2025 Oxford Ionics acquired by IonQ Strategic acquisition · US$1.1 billion · Oxford Ionics and IonQ Closed Jun 2025 IonQ acquired Lightsynq Technologies Strategic acquisition · Lightsynq Technologies and IonQ Closed May 2025 IonQ acquired ID Quantique Strategic acquisition · ID Quantique and IonQ Closed Jan 2025 IonQ acquired Qubitekk Strategic acquisition · Qubitekk and IonQ Closed
2024
Oct 2024 Zapata AI public listing and failed public outcome Failed exit · Zapata AI and Andretti Acquisition Corp. Failed Jan 2024 SandboxAQ acquired Good Chemistry Strategic acquisition · Good Chemistry and SandboxAQ Closed
2023
Jan 2023 IonQ acquired Entangled Networks Strategic acquisition · Entangled Networks and IonQ Closed
2022
Sep 2022 SandboxAQ acquired Cryptosense Strategic acquisition · Cryptosense and SandboxAQ Closed Aug 2022 D-Wave public listing via DPCM Capital SPAC / de-SPAC · D-Wave Quantum and DPCM Capital Listed Mar 2022 Quantum Machines acquired QDevil Strategic acquisition · QDevil and Quantum Machines Closed Mar 2022 Rigetti public listing via Supernova II SPAC / de-SPAC · Rigetti Computing and Supernova Partners Acquisition Company II Listed
2021
Nov 2021 Honeywell Quantum Solutions and Cambridge Quantum formed Quantinuum Merger · Cambridge Quantum / Honeywell Quantum Solutions / Quantinuum and Honeywell Closed Oct 2021 IonQ public listing via dMY Technology Group III SPAC / de-SPAC · US$2 billion · IonQ and dMY Technology Group III Listed Sep 2021 Arqit public listing via Centricus SPAC / de-SPAC · Arqit Quantum and Centricus Acquisition Corp. Listed May 2021 Keysight acquired Quantum Benchmark Strategic acquisition · Quantum Benchmark and Keysight Technologies Closed

As of Oct 9, 2026. Published records only. Since October 2026 a record is published when two independent readings of an official source agree; earlier records were checked by the editor. Anything uncertain waits out of view. Corrections and removals · Buyers · Weekly memo