Exhibit 99.1

Cellebrite Appoints Shiven Ramji Chief Executive Officer, Succeeding Thomas E. Hogan

Company Reports Second-Quarter 2026 Results; Company Lowers Full-Year 2026 ARR and Revenue Outlook and Raises Adjusted EBITDA Target

TYSONS CORNER, VA and PETAH TIKVA, ISRAEL, August 13, 2026 – Cellebrite DI Ltd. (NASDAQ: CLBT), a global leader in AI-powered Digital Investigative and Intelligence solutions for the public and private sectors, today announced that Shiven Ramji, who joined Cellebrite as President, Products and Technology in May 2026, has succeeded Thomas E. Hogan as the Company’s CEO as part of a planned transition, effective immediately. In addition, Ramji will be appointed to the Company’s Board of Directors. Hogan joined Cellebrite as Executive Chairman in August 2023, became interim CEO in January 2025 and was subsequently appointed CEO in August 2025.

Adam Clammer, Chairman of Cellebrite’s Board of Directors, stated, “We are deeply grateful to Tom for his extensive contributions to Cellebrite’s success over the last three years. One of Tom’s most important contributions was building a world-class team. Shiv’s succession is the clearest proof of his success in this endeavor. With a product-first approach and a successful track record of building and growing businesses, Shiv is the right CEO for our next chapter. The Board has every confidence in Shiv and the management team.”

Thomas E. Hogan commented, “It has been a privilege to lead Cellebrite – a company that truly makes the world a safer place. Over the past three years, we have navigated significant change while elevating our value proposition by broadening our solutions through a combination of organic innovation and M&A. With that foundation in place, Cellebrite’s next chapter requires a world-class product and technology executive, and Shiv is exactly that leader. Given the long-term opportunity in front of Cellebrite, I have full confidence that Shiv and this team will build on our progress to address the expanding needs of our customers around the world. I want to thank Cellebrite’s employees for their dedication, and our customers and shareholders for their trust. Cellebrite’s future is very bright.”

Shiv Ramji, Cellebrite’s CEO, stated, “I am honored to lead Cellebrite at an important moment for the Company. Over my first three months, I have spent significant time with our customers, employees and leaders across the business, and I have come away with strong conviction in both the opportunity ahead and the work required to realize it. Our mission has never been more relevant: helping customers accelerate investigations, uncover trusted intelligence, deliver justice and protect communities.”

Cellebrite Reports Second-Quarter 2026 Results

Cellebrite also announced today its financial results for the three and six months ending June 30, 2026.

Second-Quarter 2026 Financial Highlights

“We delivered healthy second-quarter growth in Asia-Pacific, EMEA and U.S. Federal,” stated Ramji. “However, ARR came in below our expectations. We saw longer sales cycles and less expansion from Inseyets conversions than anticipated. We are taking action to improve execution going forward.”

Ramji continued, “We are making tangible progress with our newer products, which further supports our confidence in the long-term opportunity. At the same time, we are taking a more measured view of that contribution in the near term, given elongated sales cycles and the timing of additional new product introductions anticipated for later this year.”

Ramji concluded, “Given these dynamics, in combination with the pace and magnitude of Inseyets expansions, we have lowered our FY26 ARR and revenue outlook. We believe resetting expectations now is the responsible approach and provides a more appropriate foundation from which to execute. At the same time, continued operating discipline has enabled us to raise our FY26 adjusted EBITDA target.”

Recent Business Highlights

Innovation

Go-To-Market

Supplemental financial information can be found on the Investor Relations section of our website at https://investors.cellebrite.com/financial-information/quarterly-results.

Financial Outlook

David Barter, Cellebrite’s CFO, said, “Although we didn’t deliver against our second-quarter 2026 ARR target, we have continued to make tangible progress in executing Cellebrite’s product strategy, with newer products contributing more meaningfully to net new ARR than a year ago, and we expect that momentum to continue into the second half of the year. While we’ve lowered our full-year ARR expectations, along with the resulting impact on our revenue target, we have raised this year’s original adjusted EBITDA target and anticipate delivering a stronger second-half free cash flow performance even as we continue funding the investments critical to driving durable, long-term growth.”

The Company’s third-quarter and full-year 2026 financial expectations are as follows:

Conference Call Information

Cellebrite will host a live conference call and webcast later today to review the Company’s second-quarter 2026 financial results and discuss its full-year 2026 outlook. Pertinent details include:

In conjunction with the conference call and webcast, historical financial tables and supplemental data will be available on the quarterly results section of Company’s investor relations website at https://investors.cellebrite.com/financial-information/quarterly-results.

Non-GAAP Financial Information and Key Performance Indicators

This press release includes non-GAAP financial measures. Cellebrite believes that the use of non-GAAP cost of revenue, non-GAAP gross profit, non-GAAP operating expenses, non-GAAP operating income, non-GAAP net income, non-GAAP EPS and adjusted EBITDA is helpful to investors. These measures, which the Company refers to as its non-GAAP financial measures, are not prepared in accordance with GAAP.

The Company believes that the non-GAAP financial measures provide a more meaningful comparison of its operational performance from period to period, and offer investors and management greater visibility into the underlying performance of its business:

Free cash flow is calculated as net cash provided by or used in operating activities less purchases of property and equipment and the capitalization of software development costs (collectively referred to as capital expenditures). We believe that free cash flow is a useful indicator of liquidity that provides information to management and investors about the amount of cash provided by or used in our operations that, after the investments in property and equipment, can be used for strategic initiatives.

Each of our non-GAAP financial measures is an important tool for financial and operational decision making and for evaluating our own operating results over different periods of time. The non-GAAP financial measures do not represent our financial performance under U.S. GAAP and should not be considered as alternatives to operating income or net income or any other performance measures derived in accordance with GAAP. Non-GAAP measures should not be considered in isolated from, or as an alternative to, financial measures determined in accordance with GAAP. Non-GAAP financial measures may not provide information that is directly comparable to that provided by other companies in our industry, as other companies in our industry may calculate non-GAAP financial results differently, particularly related to non-recurring, unusual items. In addition, there are limitations in using non-GAAP financial measures because the non-GAAP financial measures are not prepared in accordance with GAAP, and exclude expenses that may have a material impact on our reported financial results. Further, share-based compensation expense has been, and will continue to be for the foreseeable future, significant recurring expenses in our business and an important part of the compensation provided to our employees. In addition, the amortization of intangible assets is expected to be a recurring expense over the estimated useful life of the underlying intangible asset and acquisition-related expenses will be incurred to the extent acquisitions are made in the future. Furthermore, foreign exchange rates may fluctuate from one period to another, and the Company does not estimate movements in foreign currencies.

A reconciliation of each of these non-GAAP financial measures to their most comparable GAAP measure is set forth in a table included at the end of this press release, which is also available on our website at https://investors.cellebrite.com.

In regard to forward-looking non-GAAP guidance, we are not able to reconcile the forward-looking adjusted EBITDA measure to the closest corresponding GAAP measure without unreasonable efforts because we are unable to predict the ultimate outcome of certain significant items including, but not limited to, fair value movements, share-based payments for future awards, tax expense, depreciation and amortization expense, and certain financing and tax items.

This press release also includes key performance indicators, including annual recurring revenue and dollar-based retention rate.

Annual recurring revenue (“ARR”) is defined as the value of subscription-based customer agreements encompassing term-based on-premise software and cloud-based software, including those offerings delivered under a recurring consumption-based model, that are in effect at the end of the reporting period. For subscription-based agreements, ARR is calculated as the total contract value of the agreement divided by the length of the agreement, measured as of the end of the period and assuming no increases or reductions to the customer’s subscription. For consumption-based cloud software subscriptions, ARR is calculated as the total contract value of the subscription divided by the length of the agreement, assuming no increases or reductions in the customer’s usage rate. For new agreements with a term of less than 12 months, ARR is calculated as the total contract value of the agreement, without annualization. The annualized value of contracts is a legal and contractual determination made by assessing the contractual terms with our customers, including contracts for which we are actively negotiating a subscription renewal, which continue to be included in ARR until the customer notifies the Company that it does not intend to renew. ARR is not a forecast of future subscription revenue, which can be impacted by contract start and end dates and renewal rates.

Dollar-based net retention rate (“NRR”) is calculated by dividing the customer’s ARR by the base ARR. We define base ARR as recurring revenue we recognized from all customers with a valid license at the last quarter of the previous year period, during the four quarters ended one year prior to the date of measurement. We define our customer’s ARR as the recurring revenue we recognized during the four quarters ended on the date of measurement from the same customer base included in our measure of base ARR, including recurring revenue resulting from additional sales to those customers.

References to Websites and Social Media Platforms

References to information included on, or accessible through, websites and social media platforms do not constitute incorporation by reference of the information contained at or available through such websites or social media platforms, and you should not consider such information to be part of this press release.

Caution Regarding Forward Looking Statements

This document includes “forward-looking statements” within the meaning of the “safe harbor” provisions of the United States Private Securities Litigation Reform Act of 1995. Forward looking statements may be identified by the use of words such as “forecast,” “intend,” “seek,” “target,” “anticipate,” “will,” “appear,” “approximate,” “foresee,” “might,” “possible,” “potential,” “believe,” “could,” “predict,” “should,” “could,” “continue,” “expect,” “estimate,” “may,” “plan,” “outlook,” “future” and “project” and other similar expressions that predict, project or indicate future events or trends or that are not statements of historical matters. Such forward-looking statements include, but are not limited to, estimated financial information for the third quarter of 2026 and for fiscal year 2026 including those statements with respect to our FY26 revenue, revenue and adjusted EBITDA outlook; the expectation for a stronger second-half free cash flow performance even as we continue funding the investments critical to driving durable, long-term growth; and the near-term contribution from new products given elongated sales cycles and the timing of additional new product introductions anticipated for later this year; as well as commentary associated with future performance, strategies, prospects, and other aspects of Cellebrite’s business are based on current expectations that are subject to risks and uncertainties. A number of factors could cause actual results or outcomes to differ materially from those indicated by such forward-looking statements. These factors include, but are not limited to: Cellebrite’s ability to keep pace with technological advances and challenges and evolving industry standards with respect to software, artificial intelligence, or device access, to adapt to changing market potential within our markets and to successfully launch new solutions and add-ons that meet or exceed customer needs; our material dependence on the acceptance of our solutions by domestic and international law enforcement, public safety, defense and intelligence agencies; real or perceived errors, failures, defects or bugs in our solutions; licensing of technology from third parties, including our dependence on maintaining those licenses or seeking alternative solutions; failure to maintain the productivity of sales and marketing personnel, including relating to hiring, integrating and retaining personnel; intense competition in all of our markets, including risks associated with pricing pressures from and loss of market share to competitors with greater resources than we have and increasing competition as a result of consolidation in the industry; the misuse of our solutions by our customers which may achieve suboptimal results or be perceived as incompatible with human rights; our ability to properly manage our growth as a business, and execute new offerings, developments and strategic opportunities, including joint ventures, partnerships and acquisitions; our dependence on our customers to renew their subscriptions and purchase additional subscriptions or services from us; conducting a low volume of our business via e-commerce; the use of artificial intelligence in our digital investigation platform; the availability of financing sources on reasonable terms or at all; our reliance on third-party suppliers for certain components, products or services, including risks relating to the availability of raw materials or components; challenges associated with large transactions, including with respect to longer sales cycles, as well as with developing, offering, implementing, and maintaining new solutions; risk of security vulnerabilities or defects, including cyber-attacks, information technology system breaches, failures or disruptions which are critical to our operations and maintaining the trust and confidence of our customers; risks associated with political, geo-political and reputational factors related to our business or operations, including Cellebrite operations in Israel and/or negative publicity, including with respect to the nature of our solutions; risks associated with our ability to obtain CFIUS approval for the acquisition of Corellium and with our ongoing compliance with national security agreements entered into with the U.S. government; risks that our intellectual property rights may not be adequate to protect our business or assets or that others may make claims on our intellectual property, claim infringement on their intellectual property rights, or claim a violation of their license rights, including relative to free or open-source-software components we may use risks relating to the regulatory constraints to which we are subject, including Israeli export laws, our compliance with such laws and related export licenses issued from the government of Israel; risks associated with different corporate governance requirements applicable to Israeli companies and risks associated with being a foreign private issuer; risks associated with our significant international operations, including due to our Israeli operations, fluctuations in foreign exchange rates, rising global inflation, and exposure to regions subject to political or economic instability, including the State of Israel; uncertainties regarding the impact of changes in macroeconomic and/or global conditions, including as a result of slowdowns, recessions, economic instability, political unrest, or outbreaks of disease, as well as the resulting impact on information technology spending and government budgets, on our business and other factors, risks and uncertainties set forth in the section titled “Risk Factors” in Cellebrite’s annual report on Form 20-F filed with the U.S. Securities and Exchange Commission (“SEC”) on March 3, 2026, and in other documents filed by Cellebrite with the SEC, which are available free of charge at www.sec.gov. You are cautioned not to place undue reliance upon any forward-looking statements, which speak only as of the date made, in this communication or elsewhere. Cellebrite undertakes no obligation to update its forward-looking statements, whether as a result of new information, future developments or otherwise, should circumstances change, except as otherwise required by securities and other applicable laws.

About Cellebrite

Cellebrite’s (Nasdaq: CLBT) mission is to protect communities, nations and businesses as a global leader in digital investigative and intelligence solutions. More than 7,000 global law enforcement agencies, defense and intelligence organizations and enterprises trust Cellebrite’s AI-powered software portfolio to make forensically sound digital data more accessible and actionable. Cellebrite technology allows customers to accelerate nearly 3 million legally sanctioned investigations annually, enhance sovereign security, elevate operational efficacy and efficiency and enable advanced mobile research and application security. Available via cloud, on-premises and hybrid deployments, Cellebrite’s technology enables its customers around the globe to advance their missions, elevate public safety and safeguard data privacy. To learn more, visit us at www.cellebrite.com and https://investors.cellebrite.com and find us on social media @Cellebrite.

Contacts:

Investors Relations

Andrew Kramer

Vice President, Investor Relations & Treasury

investors@cellebrite.com

+1 973.206.7760

Media

Jackie Labrecque

Director, PR and Executive Communications

jackie.labrecque@cellebrite.com

+1 771.241.7010