RAMBUS INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

For the quarterly period ended June 30, 2025

OR

For the transition period from to

Commission File Number:000-22339

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code:

(408)462-8000

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐ No ☒

The number of shares outstanding of the registrant’s Common Stock, par value $0.001 per share, was 107,593,820 as of June 30, 2025.

TABLE OF CONTENTS

NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q (“Quarterly Report”) contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These forward-looking statements include, without limitation, predictions regarding the following aspects of our future:

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Success in the markets of our products and services or our customers’ products;

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Sources of competition;

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Research and development costs and improvements in technology;

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Sources, amounts and concentration of revenue, including royalties;

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Success in signing and renewing customer agreements, including license agreements;

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The timing of completing engineering deliverables and the changes to work required;

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Success in obtaining new technology development contracts booked in the future;

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Success in adding and maintaining new customers;

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Success in obtaining orders from our customers, and our ability to accurately anticipate and meet our customers’ demands;

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Success in entering and growth in new markets;

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Levels of variation in our customers’ shipment volumes, sales prices and product mix;

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Variation in contract and other revenue, based on varying revenue recognized from contract and other revenue;

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Implications of short-term or long-term increases in our research and development expenses;

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Short-term increases in cost of product revenue;

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Variation in our sales, general and administrative expenses;

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Terms of our licenses and amounts owed under license agreements;

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Technology product development;

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Perceived or actual changes in the quality of our products;

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Dispositions, acquisitions, mergers or strategic transactions and our related integration efforts;

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Impairment of goodwill and long-lived assets;

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Pricing policies of our customers;

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Changes in our strategy and business model, including the expansion of our portfolio of inventions, products, software, services and solutions to address additional markets in memory, chip and security;

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Deterioration of financial health of commercial counterparties and their ability to meet their obligations to us;

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Effects of security breaches or failures in our or our customers’ products, systems and services on our business;

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Engineering, sales, legal, advertising, marketing, general and administration, and other expenses;

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Contract revenue;

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Operating results;

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Continued product revenue growth, specifically in connection with the growth in sales of our memory interface chips;

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International licenses, operations and expansion;

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Effects of changes in the economy and credit market on our industry and business;

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Effects of natural disasters, climate change and extreme weather events on our supply chain;

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Ability to identify, attract, motivate and retain qualified personnel;

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Effects of government regulations on our industry and business;

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Manufacturing, shipping and supply partners, supply chain availability and/or sale and distribution channels;

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Growth in our business;

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Methods, estimates and judgments in accounting policies;

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Adoption of new accounting pronouncements;

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Effective tax rates, including as a result of recent U.S. tax legislation;

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Restructurings and plans of termination;

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Realization of deferred tax assets/release of deferred tax valuation allowance;

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Trading price of our common stock;

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Internal control environment;

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Protection of intellectual property (“IP”);

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Any changes in laws, agency actions and judicial rulings that may impact the ability to enforce our IP rights;

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Indemnification and technical support obligations;

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Equity repurchase programs;

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Issuances of debt or equity securities, which could involve restrictive covenants or be dilutive to our existing stockholders;

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Effects of fluctuations in interest rates and currency exchange rates;

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Effects of a varying rate of inflation;

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Effects of U.S. government restrictions on exports, including with China;

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Effects of current and future uncertainty in the worldwide economy, including major central bank policies and worldwide changes in credit markets;

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Effects of changes in macroeconomic conditions, increased risk of recession and geopolitical issues;

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Management of supply chain risks; and

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Outcome and effect of potential future IP litigation and other significant litigation.

You can identify these and other forward-looking statements by the use of words such as “may,” “future,” “shall,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “intends,” “potential,” “continue,” “projecting” or the negative of such terms, or other comparable terminology. Forward-looking statements also include the assumptions underlying or relating to any of the foregoing statements.

Actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including those set forth under Part II, Item 1A, “Risk Factors.” All forward-looking statements included in this document are based on our assessment of information available to us at this time. We assume no obligation to update any forward-looking statements.