XML 12 R1.htm IDEA: XBRL DOCUMENT v3.25.4
Cover Page - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2023
Jan. 31, 2026
Jun. 30, 2025
Cover [Abstract]        
Document Type 10-K      
Document Annual Report true      
Document Period End Date Dec. 31, 2025      
Document Transition Report false      
Entity File Number 000-22339      
Entity Registrant Name RAMBUS INC      
Entity Incorporation, State or Country Code DE      
Entity Tax Identification Number 94-3112828      
Entity Address, Address Line One 4453 North First Street      
Entity Address, Address Line Two Suite 100      
Entity Address, City or Town San Jose      
Entity Address, State or Province CA      
Entity Address, Postal Zip Code 95134      
City Area Code 408      
Local Phone Number 462-8000      
Title of 12(b) Security Common Stock, $.001 Par Value      
Trading Symbol RMBS      
Security Exchange Name NASDAQ      
Entity Well-known Seasoned Issuer Yes      
Entity Voluntary Filers No      
Entity Current Reporting Status Yes      
Entity Interactive Data Current Yes      
Entity Filer Category Large Accelerated Filer      
Entity Small Business false      
Entity Emerging Growth Company false      
ICFR Auditor Attestation Flag true      
Document Financial Statement Error Correction [Flag] false      
Entity Shell Company false      
Entity Public Float       $ 5.2
Entity Common Stock, Shares Outstanding     107,790,732  
Documents Incorporated by Reference

Certain information is incorporated into Part III of this report by reference to the Proxy Statement for the Registrant’s annual meeting of stockholders to be held on or about April 23, 2026 to be filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this Form 10-K.

      
Entity Central Index Key 0000917273      
Amendment Flag false      
Current Fiscal Year End Date --12-31      
Document Fiscal Year Focus 2025      
Document Fiscal Period Focus FY      
Auditor Name KPMG LLP PricewaterhouseCoopers LLP    
Auditor Location Santa Clara, California San Jose, California    
Auditor Firm ID 185 238    
Auditor Opinion

We have audited the accompanying consolidated balance sheets of Rambus Inc. and subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of income, comprehensive income, stockholders’ equity, and cash flows for each of the years then ended, and the related notes (collectively, the consolidated financial statements). We also have audited the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for the years then ended, in conformity with U.S. generally accepted accounting principles. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025 based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.