Exhibit 99.1 News Release RAMBUS REPORTS FOURTH QUARTER AND FISCAL YEAR 2025 FINANCIAL RESULTS SAN JOSE, Calif. – February 2, 2026 – Rambus Inc. (NASDAQ:RMBS), a provider of industry-leading chips and IP making data faster and safer, today reported financial results for the fourth quarter ended December 31, 2025. GAAP revenue for the fourth quarter was $190.2 million, licensing billings were$71.5 million, product revenue was $96.8 million, and contract and other revenue was$21.8 million. The Company also ...