Leibrock Brings Over 20 Years of Business and Finance Leadership Expertise

Company Reaffirms 2025 Financial Guidance

ACI Worldwide (NASDAQ: ACIW), an original innovator in global payments technology, today announced the appointment of Robert (“Bobby”) Leibrock as Chief Financial Officer (CFO), effective July 1, 2025. Mr. Leibrock succeeds Scott Behrens, who is retiring following an exemplary career spanning nearly two decades at ACI.

Mr. Leibrock joins ACI from Red Hat, Inc., where he currently serves as Senior Vice President, Chief Operating Officer and CFO. Red Hat is the open hybrid cloud technology leader, supporting transformative IT innovation and AI applications. At Red Hat, Mr. Leibrock successfully guided global financial operations through significant growth and strategic transformation, including initiatives focused on advancing AI capabilities and investments. He previously held senior finance roles at IBM, where he was instrumental in driving meaningful revenue growth through his leadership of financial strategy, operational excellence, and profitability improvement initiatives.

“I am delighted to welcome Bobby to ACI,” said Thomas Warsop, President and CEO of ACI Worldwide. “His extensive experience leading finance organizations in global, complex environments, particularly in cloud and SaaS-focused businesses, will be invaluable as we continue to execute our growth strategy. His strategic acumen and proven financial expertise position him well to drive our financial discipline and operational excellence.”

Warsop continued, “Scott has skillfully guided ACI’s global financial strategies and activities since joining the company in 2007. He's been a strong, steady leader who effectively communicated ACI’s financial story and served as a true partner in advancing our transformation into a dynamic and innovative growth company. We are fortunate to draw on Scott’s considerable expertise during this transition and extend our deepest gratitude for his significant contributions. We wish him the very best in his well-deserved retirement."

“It has been the greatest privilege of my career to serve as ACI’s CFO and lead our talented finance team,” Behrens said. “Today, ACI is positioned to win, and our financial posture, strategic priorities, and operational execution remain unchanged, underscoring our commitment to continuity and delivering market-leading payment software solutions around the globe. I look forward to working with Bobby and the ACI leadership team for as long as needed to ensure a smooth and orderly transition.”

“I’m excited to join ACI Worldwide at such a pivotal moment in the evolution of payments and real-time technology,” said Leibrock. “I look forward to partnering with Tom and the talented ACI team to scale innovation, strengthen financial performance, build on our industry leadership, and create lasting value for shareholders.”

Company Reaffirms Full-Year 2025 Financial Guidance

ACI Worldwide is reaffirming its Q2 and full year 2025 financial guidance as previously communicated, which represents 7% to 9% growth over 2024 on an FX-adjusted basis and is in line with the long-term growth targets ACI discussed at last year’s Analyst Day.

About Robert (“Bobby”) Leibrock

Mr. Leibrock joined Red Hat Inc. in 2022 as Senior Vice President and CFO. In this role, he oversaw all strategic finance functions to ensure operational excellence, including: accounting, finance and planning, tax, treasury, sales operations, audit, controls, data & analytics, procurement, and deal management. His role expanded to include the COO title in February 2025. Before joining Red Hat, he spent nearly 20 years at IBM in senior roles across the CFO and Software organizations. He was a pivotal member of the leadership team behind IBM’s $34 billion acquisition of Red Hat and played a central role in driving the integration strategy and long-term value creation. Earlier in his IBM career, he held financial leadership positions spanning security and automation software, cloud platform, global technology services, and the mainframe business. Mr. Leibrock holds a bachelor’s degree in business administration from University of Connecticut.

About ACI Worldwide

ACI Worldwide, an original innovator in global payments technology, delivers transformative software solutions that power intelligent payments orchestration in real time so banks, billers, and merchants can drive growth, while continuously modernizing their payment infrastructures, simply and securely. With 50 years of trusted payments expertise, we combine our global footprint with a local presence to offer enhanced payment experiences to stay ahead of constantly changing payment challenges and opportunities.

© Copyright ACI Worldwide, Inc. 2025 ACI, ACI Worldwide, ACI Payments, Inc., ACI Pay, Speedpay and all ACI product/solution names are trademarks or registered trademarks of ACI Worldwide, Inc., or one of its subsidiaries, in the United States, other countries or both. Other parties’ trademarks referenced are the property of their respective owners.

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements based on current expectations that involve a number of risks and uncertainties. Generally, forward-looking statements do not relate strictly to historical or current facts and may include words or phrases such as “believes,” “will,” “expects,” “anticipates,” “intends,” and words and phrases of similar impact. The forward-looking statements are made pursuant to safe harbor provisions of the Private Securities Litigation Reform Act of 1995.

Forward-looking statements in this press release include, but are not limited to, expectations regarding Q2 and full year 2025 financial guidance as previously communicated, which represents 7% to 9% growth over 2024 on an FX-adjusted basis and is in line with the long-term growth targets ACI discussed at last year’s Analyst Day.

All of the foregoing forward-looking statements are expressly qualified by the risk factors discussed in our filings with the Securities and Exchange Commission. Such factors include, but are not limited to, increased competition, business interruptions, cybersecurity incidents or failure of our information technology and communication systems, security breaches, our ability to attract and retain senior management personnel and skilled technical employees, future acquisitions, strategic partnerships and investments, divestitures and other restructuring activities, implementation and success of our strategy, impact if we convert some or all on-premise licenses from fixed-term to subscription model, anti-takeover provisions, exposure to credit or operating risks arising from certain payment funding methods, loss caused by theft or fraud, customer reluctance to switch to a new vendor, our ability to adequately defend our intellectual property, litigation, consent orders and other compliance agreements, our offshore software development activities, risks from operating internationally, including fluctuations in currency exchange rates, events in eastern Europe and the Middle East, adverse changes in the global economy, compliance of our products with applicable legislation, governmental regulations and industry standards, the complexity of our products and services and the risk that they may contain hidden defects, legal and business risks from artificial intelligence technology incorporated into our products, risks to our business from the use of artificial intelligence by our workforce, complex regulations applicable to our payments business, our compliance with privacy and cybersecurity regulations, compliance with requirements of the payment card networks and Nacha, exposure to unknown tax liabilities, changes in tax laws and regulations, consolidations and failures in the financial services industry, volatility in our stock price, demand for our products, failure to obtain renewals of customer contracts or to obtain such renewals on favorable terms, delay or cancellation of customer projects or inaccurate project completion estimates, changes in card association and debit network fees or products, impairment of our goodwill or intangible assets, the accuracy of management’s backlog estimates, the cyclical nature of our revenue and earnings and the accuracy of forecasts due to the concentration of revenue-generating activity during the final weeks of each quarter, restrictions and other financial covenants in our debt agreements, our existing levels of debt, incurring additional debt, events outside of our control including natural disasters, wars, and outbreaks of disease, and revenues or revenue mix below expectations. For a detailed discussion of these risk factors, parties that are relying on the forward-looking statements should review our filings with the Securities and Exchange Commission, including our most recently filed Annual Report on Form 10-K and our Quarterly Reports on Form 10-Q.

Media Contacts John Kraft | Head of Strategy & Finance | john.kraft@aciworldwide.com Nick Karoglou | Head of Communications & Corporate Affairs | nick.karoglou@aciworldwide.com

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