IonQ to Acquire Zero Trust Security Firm Elisity in All-Stock Deal Valued at Up to $1.3 Billion

IonQ has signed a definitive agreement to acquire Elisity, Inc., a Zero Trust network security company, in an all-stock transaction valued at up to $1.3 billion, according to a Business Wire release carried by Stock Titan on October 12, 2026. The headline figure includes up to $150 million in earnout consideration tied to Elisity's future performance, meaning the upfront stock paid at closing will sit below the $1.3 billion ceiling.

Deal Terms and Share Structure

Per the release, the number of IonQ shares issued to Elisity shareholders will be calculated at closing using the volume weighted average price of IonQ common stock over the 20 trading days prior to, but not including, the third business day before closing. That reference price is subject to a collar: it cannot exceed $49.61 per share or fall below $33.07 per share. By our calculation, the span between the collar's ceiling and floor is $16.54, or roughly 50% of the floor price ($49.61 minus $33.07, divided by $33.07). That range means the ultimate exchange ratio, and therefore the number of new IonQ shares issued, will depend on where IonQ's stock trades heading into closing, within those bounds.

The transaction is expected to close in the fourth quarter of 2026, subject to customary closing conditions including receipt of required regulatory approval, Business Wire reported. IonQ's release also cautioned that the deal may not close on the expected timing or at all, and flagged risks tied to required approvals, retention of Elisity's customers, partners and employees, and integration of the acquired business.

Elisity's Business and Scale

Founded in 2019, Elisity has a global employee footprint and more than 100 global customer deployments, including a growing number of Fortune 500 accounts, according to the Business Wire announcement. IonQ characterized Elisity as a high-growth business that has doubled both revenue and customer count year-over-year with zero churn among deployed customers and significant recurring revenue, though no absolute revenue figure was disclosed in the release. IonQ framed the acquisition as its entry point into what it sizes as a more than $10 billion microsegmentation market growing at a double-digit compound annual rate. Following closing, Elisity is expected to continue serving its customers under its current leadership, including CEO James Winebrenner, per the release.

Strategic Rationale

IonQ Chairman and CEO Niccolo de Masi linked the Elisity purchase to the company's earlier SkyWater Technology deal, saying in the announcement that "just as adding SkyWater Technology expanded IonQ's capabilities in chip design, fabrication and packaging, Elisity will bring proven enterprise policy enforcement scale and deployment experience to our quantum security strategy and will give IonQ a strong growth platform to serve customers and create value for our shareholders." De Masi also said "Q-Day is coming much faster than predicted," according to the same release. The release did not define the term; Q-Day is commonly used to describe the point at which quantum computers could break widely used encryption, an explanation offered here as context rather than a statement from the company.

Elisity CEO James Winebrenner said the combination would leave the companies "optimally positioned" to partner with customers "to modernize their crypto-agility programs, accelerate post-quantum cryptography capabilities while advancing their holistic Zero Trust posture and deploy hybrid-cybersecurity solutions today that are prepared for the quantum future," per Business Wire.

On the product side, IonQ said the plan is to pair its post-quantum cryptography (PQC) and quantum key distribution (QKD) capabilities with Elisity's identity-based access controls, combining cryptographic protection for sensitive data and communications with controls that limit unauthorized network access. The companies' shared roadmap is intended to extend Elisity's IdentityGraph platform with cryptographic inventory and risk information, according to the release.

Context: IonQ's Broader Push

IonQ pointed to existing quantum-safe network deployments in Switzerland, Poland, Romania and Slovakia, and to 40% year-over-year growth in multiproduct revenue in the second quarter of 2026, as evidence of demand for integrated quantum-security offerings, per Business Wire. The company also cited a White House executive order dated June 22, 2026, along with other recent federal directives accelerating the government's migration to post-quantum cryptography, as a driver of urgency for the deal.

The Elisity agreement follows IonQ's pending acquisition of SkyWater Technology, announced January 26, 2026 and expected at the time to close in the second or third quarter of 2026, subject to SkyWater shareholder and regulatory approvals, according to IonQ's first-quarter 2026 results release. That same release disclosed record first-quarter 2026 revenue of $64.7 million, up 755% year-over-year, cash, cash equivalents and investments of $3.1 billion as of March 31, 2026, and raised full-year 2026 revenue guidance to between $260 million and $270 million. For additional scale on IonQ's financing activity, the company priced a $2.0 billion equity offering in October 2025 consisting of 16,500,000 shares and pre-funded warrants for 5,005,400 shares at $93 each, along with seven-year warrants for 43,010,800 additional shares exercisable at $155, according to an IonQ press release on that offering.

Bottom Line

IonQ's agreement to acquire Elisity adds a Zero Trust security business with an established enterprise customer base to its post-quantum cryptography and quantum key distribution lineup, with the final share count to be set by a VWAP formula bounded between $33.07 and $49.61 per IonQ share, according to the Business Wire release. Reading those disclosed terms, the practical implication is that the deal's eventual stock cost, and the resulting share issuance, will vary with where the reference price settles inside that collar, and with whether the performance conditions attached to the up-to-$150 million earnout are met. Closing remains subject to the regulatory approval and customary conditions cited in the release ahead of the fourth-quarter 2026 target, which IonQ cautioned may not be met on that timing or at all.