Deals·October 12, 2026 at 3:35 PM EDT·1 source
IonQ to acquire cybersecurity firm Elisity in an all-stock deal for up to $1.3 billion
IONQ +0.4%RGTIQBTS
IONQ · last 30 trading days-13.8% since the news
News
acquisition, log scale$1.3B
$100M$1B$10B$100B
What happened
- IonQ will acquire cybersecurity company Elisity in an all-stock transaction worth up to $1.3 billion, including up to $150 million in performance-based earnouts.
- The acquisition is intended to strengthen protection against attacks targeting generative AI models and agents, as well as emerging quantum threats.
- The deal is expected to close in the fourth quarter, subject to regulatory approval; Elisity CEO James Winebrenner will remain in place.
Maximum deal value
$1.3 billion
Performance-based earnouts
$150 million
Expected closing
fourth quarter
IonQ share move
fell more than 9%
Why it matters
The transaction expands IonQ’s cybersecurity portfolio and links quantum-computing capabilities with protection against AI-related and future quantum threats. It is relevant to technology M&A and investors tracking IonQ’s acquisition strategy.
What to watch. Regulatory approval and closing in the fourth quarter.
Deal terms
acquisition
IonQ → Elisity
Value
$1.3B
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Who is involved
acquiringIonQ to acquire cybersecurity firm Elisity in an all-stock de…ElisitytargetIonQIONQ · buyerRigetti ComputingRGTID-Wave QuantumQBTSSkyWater TechnologyOxford IonicsNiccolo de MasiJames Winebrenner
CompanyPersonThe deal
Sources (1)
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