[8-K] RAMBUS INC Reports Material Event

Rhea-AI Filing Summary

Rambus Inc. (RMBS) furnished an 8-K to announce results for the quarter ended September 30, 2025. The company issued an earnings press release, which is attached as Exhibit 99.1 and incorporated by reference.

The Item 2.02 information is stated as furnished, not filed under the Exchange Act, and therefore is not subject to Section 18 liabilities nor automatically incorporated into other filings. The submission also includes Exhibit 104 for the Inline XBRL cover page. The report is dated October 27, 2025.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 27, 2025

Rambus Inc.

(Exact name of registrant as specified in its charter)

Delaware		000-22339		94-3112828
(State or other jurisdiction of incorporation)		(Commission File Number)		(I. R. S. Employer Identification No.)

4453 North First Street, Suite 100

San Jose, California 95134

(Address of principal executive offices)

(408) 462-8000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of Each Class		Trading Symbol		Name of Each Exchange on Which Registered
Common Stock, $.001 Par Value		RMBS		The Nasdaq Stock Market LLC
				(The Nasdaq Global Select Market)

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

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. ☐

Item 2.02 – Results of Operations and Financial Condition.

On October 27, 2025, Rambus Inc. (“Rambus,” or the “Company”) issued a press release announcing results for the quarter ended September 30, 2025. A copy of the press release is attached as Exhibit 99.1 to this current report on Form 8-K and is incorporated by reference herein.

The information under Item 2.02 in this current report on Form 8-K and the related information in the exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Item 9.01 – Financial Statements and Exhibits.

(d) Exhibits.

99.1	Earnings press release dated October 27, 2025.
104	Cover Page Interactive Date File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 27, 2025			Rambus Inc.
			/s/ Desmond Lynch
			Desmond Lynch, Senior Vice President, Finance and Chief Financial Officer

FAQ

What did Rambus (RMBS) announce in this 8-K?

Rambus announced results for the quarter ended September 30, 2025, via an earnings press release attached as Exhibit 99.1.

Which period does the Rambus announcement cover?

The filing pertains to the quarter ended September 30, 2025.

Is the earnings information filed or furnished?

The Item 2.02 information is furnished, not filed, and is not subject to Section 18 liabilities.

What exhibits are included with the 8-K?

The filing includes Exhibit 99.1 (earnings press release) and Exhibit 104 (Inline XBRL cover page data file).

What is the date of the report for this 8-K?

The report is dated October 27, 2025.

What is Rambus’s trading symbol and exchange?

Rambus trades as RMBS on The Nasdaq Global Select Market.