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Exhibit 99.1 OpenText Reports Second Quarter Fiscal Year 2026 Financial Results Total Revenues of $1.33B, 20 Consecutive Quarters of Cloud Organic Growth Delivers Net Income Margin of 13%, Robust Adjusted EBITDA Margin of 37.0% Fiscal 2026 Second Quarter Highlights (in millions) Total Revenues CloudRevenues Profitability Diluted EPS Cash Flows Net Income A-EBITDA GAAP Non-GAAP Operating Free CashFlows $1,327 $478 $168 $491 $0.66 $1.13 $319 $279 -0.6% Y/Y +3.4% Y/Y 12.7% margin 37.0% margin -24.1% Y/Y +1.8% Y/Y -8.4% Y/Y -8.9% Y/Y Waterloo, ON, February 5, 2026 - Open Text Corporation (NASDAQ: OTEX), (TSX: OTEX), today announced its financial results for the second quarter ended December 31, 2025. “We had an excellent quarter, led by 18% revenue growth in our Content Management cloud business,” said James McGourlay, InterimChief Executive Officer. “OpenText is at the forefront of Enterprise Information Management for AI, and at our recent OpenText Worldconference, our customers and partners demonstrated on the main stage how they leverage our Aviator AI solutions to solve complexproblems, bringing insights, security and compliance to their information and most sensitive data. I would also like to welcome AymanAntoun to the CEO role at OpenText, and I look forward to working with him on a smooth and steady transition.” James McGourlay, OpenText Interim Chief Executive Officer “With strong adjusted EBITDA margin and free cash flow performance in the quarter, the strength of the OpenText operating modelcontinues to drive our business to meet the Company’s margin targets for Fiscal 2026,” said Steve Rai, Executive Vice President, ChiefFinancial Officer. “Our robust cash flow engine provides the scale and capital flexibility to continue investing for growth within ourcore Enterprise Information Management for AI market.” Steve Rai, OpenText Executive Vice President, Chief Financial Officer “Welcoming Ayman Antoun as our CEO marks a pivotal milestone in OpenText’s journey. He brings deep enterprise technology andsoftware expertise with decades of experience leading large scale global transformations. Ayman’s leadership will help OpenTextexpand our market share as the world’s leader in secure, trusted data amid accelerating demand for cloud modernization and enterpriseAI,” said P. Thomas Jenkins, Executive Chair of the Board and Chief Strategy Officer. “The closing of eDOCS and announceddivestiture of Vertica demonstrates our continued progress in divesting non-core assets. We remain committed to building a leanerOpenText, focused on growth and helping clients leverage enterprise content to train agentic AI.” P. Thomas Jenkins, OpenText Executive Chair & Chief Strategy Officer Second Quarter Financial Highlights Y/Y • Total revenues: $1.327 billion, -0.6% Y/Y • Annual recurring revenues (ARR): $1.060 billion, +0.7% Y/Y • Cloud revenues: $478 million, +3.4% Y/Y, 20 consecutive quarters of cloud organic growth • Quarterly enterprise cloud bookings : $295 million, +18.0% Y/Y • Cash flows: Operating $319 million and free cash flows $279 million • Net income: GAAP $168 million, -26.9% Y/Y, Non-GAAP $286 million, -2.4% Y/Y • Adjusted EBITDA of $491 million, margin of 37.0% • Diluted earnings per share (EPS): GAAP $0.66, Non-GAAP $1.13 • Capital returns of $119 million including $69 million via dividends and $50 million of share repurchases Numbers presented are in millions of US dollars, except for per share or percentage metrics. Enterprise cloud bookings is defined as the total value from cloud services and subscription contracts, entered into in the period that are new, committed and incremental to our existing contracts, entered into with our enterprise based customers. Please see Note 2 “Use of Non-GAAP Financial Measures” to the condensed consolidated financial statements below. (1) (2) (3) (3) (3) (3) (1) (2) (3) 1