Exhibit 99.1 News Release RAMBUS REPORTS THIRD QUARTER 2025 FINANCIAL RESULTS SAN JOSE, Calif. – October 27, 2025 – Rambus Inc. (NASDAQ:RMBS), a provider of industry-leading chips and IP making data faster and safer, today reported financial results for the third quarter ended September 30, 2025. GAAP revenue for the third quarter was $178.5 million, licensing billings were$66.1 million, product revenue was $93.3 million, and contract and other revenue was$20.1 million. The Company also generated $88.4 mi ...