[email protected]

• Record quarterly revenue of $207.4 million, up 20% year over year, exceeding revenue guidance range
• GAAP diluted earnings per share of $0.61 and non-GAAP diluted earnings per share of $0.77, exceeding non-GAAP diluted earnings per share guidance range
• Record product revenue of $99.2 million, up 13% quarter over quarter and 22% year over year
• Expanded product and IP offerings for next-generation AI systems, including complete chipsets for DDR5 9600 server and client memory modules, and PCIe 7 Switch IP

SAN JOSE, Calif. – July 27, 2026 – Rambus Inc. (NASDAQ:RMBS), a provider of industry-leading chips and IP making data faster and safer, today reported financial results for the second quarter ended June 30, 2026. Total revenue for the second quarter was $207.4 million, product revenue was $99.2 million, royalties revenue was $84.2 million and contract and other revenue was $24.0 million. GAAP diluted earnings per share was $0.61 and non-GAAP diluted earnings per share was $0.77. The Company also generated $61.2 million in cash from operating activities in the second quarter.

Management Commentary

“Rambus had an outstanding second quarter, delivering a new all-time high in revenue and non-GAAP earnings, fueled by record product revenue that grew more than 20% year over year,” said Luc Seraphin, president and chief executive officer of Rambus. “We continue to execute on our roadmap of high-performance chip and IP solutions to meet the accelerating demands of data center and AI infrastructure. We are well positioned to capitalize on the strong secular trends driven by the rapid expansion of AI inference and agentic workloads, supporting our continued product momentum and long-term profitable growth.”

		GAAP								Non-GAAP (1)
Quarterly Financial Review		Three Months Ended June 30,								Three Months Ended June 30,
(In millions, except percentages and per share amounts)		2026				2025				2026				2025
Revenue
Product revenue		$	99.2			$	81.3			$	99.2			$	81.3
Royalties revenue			84.2				68.6				84.2				68.6
Contract and other revenue			24.0				22.3				24.0				22.3
Total revenue			207.4				172.2				207.4				172.2
Cost of product revenue			39.6				32.4				39.4				32.2
Cost of contract and other revenue			0.8				0.6				0.8				0.6
Amortization of acquired intangible assets (included in total cost of revenue)			1.6				1.8				—				—
Total operating expenses			92.7				74.4				73.5				60.4
Operating income		$	72.7			$	63.0			$	93.7			$	79.0
Operating margin			35%				37%				45%				46%
Net income		$	67.6			$	57.9			$	84.4			$	67.1
Diluted earnings per share		$	0.61			$	0.53			$	0.77			$	0.62

• See “Supplemental Reconciliation of GAAP to Non-GAAP Results” table included below. Note that the applicable non-GAAP measures are presented and that revenue is solely presented on a GAAP basis.

GAAP revenue for the quarter was $207.4 million, which exceeded the Company’s guidance range of $192 million to $198 million. The Company had product revenue of $99.2 million, royalties revenue of $84.2 million and contract and other revenue of $24.0 million. The Company also had licensing billings of $84.1 million, which is an operational metric that reflects amounts invoiced to our licensing customers during the period, as adjusted for certain differences relating to advanced payments for variable licensing agreements.

The Company had total GAAP cost of revenue of $42.0 million and operating expenses of $92.7 million. The Company also had total non-GAAP operating expenses of $113.7 million (including non-GAAP cost of revenue of $40.2 million). The Company had GAAP diluted earnings per share of $0.61 and non-GAAP diluted earnings per share of $0.77. The Company’s basic share count was 108 million shares and its diluted share count was 110 million shares.

Cash, cash equivalents, and marketable securities as of June 30, 2026 were $824.9 million, an increase of $38.8 million as compared to March 31, 2026, mainly due to $61.2 million in cash provided by operating activities, partially offset by $14.3 million in payments of taxes related to net share settlement of equity awards and $12.2 million paid for capital expenditures.

2026 Third Quarter Outlook

(In millions, except per share amounts)		GAAP		Non-GAAP (1)
Revenue		$210 – $216		$210 – $216
Product revenue		$110 – $116		$110 – $116
Royalties revenue		$69 – $75		$69 – $75
Contract and other revenue		$25 – $31		$25 – $31
Total operating costs and expenses		$137 – $133		$119 – $115
Diluted earnings per share		$0.59 – $0.67		$0.75 – $0.82

• See “Reconciliation of GAAP Forward-Looking Estimates to Non-GAAP Forward-Looking Estimates” table included below. Note that the applicable non-GAAP measures are presented and that revenue is solely presented on a GAAP basis.

For the third quarter of 2026, the Company expects revenue to be between $210 million and $216 million. The Company also expects product revenue to be between $110 million and $116 million, royalties revenue to be between $69 million and $75 million, and contract and other revenue to be between $25 million and $31 million. Revenue is not without risk and achieving revenue in this range will require that the Company sign customer agreements for various product sales and solutions licensing, among other matters.

The Company also expects GAAP operating costs and expenses to be between $137 million and $133 million and non-GAAP operating costs and expenses to be between $119 million and $115 million. The Company expects interest and other income to be $7 million. These expectations also assume a GAAP tax rate of 18.7%, a non-GAAP tax rate of 16% and a diluted share count of 110 million shares, and exclude stock-based compensation expense of $15.7 million, amortization of acquired intangible assets of $1.5 million and other one-time adjustments of $0.8 million.

Additionally, the Company expects GAAP diluted earnings per share to be between $0.59 and $0.67 and non-GAAP diluted earnings per share to be between $0.75 and $0.82.

Conference Call

The Company’s management will discuss the results of the quarter during a conference call scheduled for 2:00 p.m. PT today. The call will be audio, slides will be available online at investor.rambus.com, and a replay will be available for the next week at the following numbers: (800) 770-2030 (domestic) or (+1) 609-800-9909 (international) with ID# 9039474.

Non-GAAP Financial Information

In the commentary set forth above and in the financial statements included in this earnings release, the Company presents the following non-GAAP financial measures: cost of product revenue, operating expenses, operating income, gross margin, operating margin, net income and diluted net income per share (diluted earnings per share). In computing each of these non-GAAP financial measures, the following items were considered as discussed below: stock-based compensation expense, restructuring charges, acquisition-related costs, amortization of acquired intangible assets, facility closure costs, income tax adjustment, and certain other one-time adjustments. The non-GAAP financial measures disclosed by the Company should not be considered a substitute for, or superior to, financial measures calculated in accordance with GAAP, and the financial results calculated in accordance with GAAP and reconciliations from these results should be carefully evaluated. Management believes the non-GAAP financial measures are appropriate for both its own assessment of, and to show investors, how the Company’s performance compares to other periods. The non-GAAP financial measures used by the Company may be calculated differently from, and therefore may not be comparable to, similarly titled measures used by other companies. A reconciliation from GAAP to non-GAAP results is included in the financial statements contained in this release.

The Company’s non-GAAP financial measures reflect adjustments based on the following items:

Stock-based compensation expense. These expenses primarily relate to employee stock purchase plans, and employee non-vested equity stock and non-vested stock units. The Company excludes stock-based compensation expense from its non-GAAP measures primarily because such expenses are non-cash expenses that the Company does not believe are reflective of ongoing operating results. Additionally, given the fact that other companies may grant different amounts and types of equity awards and may use different valuation assumptions, excluding stock-based compensation expense permits more accurate comparisons of the Company’s results with peer companies.

Restructuring charges. These charges include severance, exit costs and other related costs. The Company excludes these charges because such charges are not directly related to ongoing business results and do not reflect expected future operating expenses.

Acquisition-related costs. These expenses include all direct costs of certain acquisitions and the current periods’ portion of any retention bonus expense associated with the acquisitions. The Company excludes these expenses in order to provide better comparability between periods as they are related to acquisitions and have no direct correlation to the Company’s operations.

Amortization of acquired intangible assets. The Company incurs expenses for the amortization of intangible assets acquired in acquisitions. The Company excludes these items because these expenses are not reflective of ongoing operating results in the period incurred. These amounts arise from the Company’s prior acquisitions and have no direct correlation to the operation of the Company’s core business.

Facility closure costs. These charges consist of exit costs associated with building leases that were abandoned. The Company excludes these charges because such charges are not directly related to ongoing business results and do not reflect expected future operating expenses.

Income tax adjustment. For purposes of internal forecasting, planning and analyzing future periods that assume net income from operations, the Company estimates a fixed, long-term projected tax rate of approximately 16 percent and 20 percent for 2026 and 2025, respectively, which consists of estimated U.S. federal and state tax rates, and excludes tax rates associated with certain items such as withholding tax, tax credits, deferred tax asset valuation allowance and the release of any deferred tax asset valuation allowance. Accordingly, the Company has applied these tax rates to its non-GAAP financial results for all periods in the relevant years to assist the Company’s planning.

On occasion in the future, there may be other items, such as significant gains or losses from contingencies, that the Company may exclude in deriving its non-GAAP financial measures if it believes that doing so is consistent with the goal of providing useful information to investors and management.

About Rambus Inc.

Rambus delivers industry-leading chips and silicon IP for data-intensive computing systems, focusing on data center and AI infrastructure. With over three decades of advanced semiconductor experience, our products and technologies address the critical bottlenecks between memory and processing to accelerate data-intensive workloads. By enabling greater bandwidth, efficiency and security across next-generation computing platforms, we make data faster and safer. For more information, visit rambus.com.

Forward-Looking Statements

This release contains forward-looking statements under the Private Securities Litigation Reform Act of 1995, including those relating to Rambus’ expectations regarding business opportunities, the Company’s ability to deliver long-term, profitable growth, product and investment strategies, and the Company’s outlook and financial guidance for the third quarter of 2026 and related drivers, and the Company’s ability to effectively manage market challenges. Such forward-looking statements are based on current expectations, estimates and projections, management’s beliefs and certain assumptions made by the Company’s management. Actual results may differ materially. The Company’s business generally is subject to a number of risks which are described more fully in Rambus’ periodic reports filed with the Securities and Exchange Commission. The Company undertakes no obligation to update forward-looking statements to reflect events or circumstances after the date hereof.

Contact
Sumeet Gagneja
Senior Vice President and Chief Financial Officer
(408) 462-8000
[email protected]

Rambus Inc.
Condensed Consolidated Balance Sheets
(Unaudited)

(In thousands)		June 30, 2026				December 31, 2025
ASSETS
Current assets:
Cash and cash equivalents		$	87,720			$	182,826
Marketable securities			737,228				579,005
Accounts receivable			144,094				137,476
Unbilled receivables			22,768				25,209
Inventories			74,836				44,098
Prepaids and other current assets			20,750				20,202
Total current assets			1,087,396				988,816
Intangible assets, net			6,875				10,171
Goodwill			286,812				286,812
Property and equipment, net			114,523				113,051
Operating lease right-of-use assets			14,855				17,112
Deferred tax assets			94,619				105,542
Other assets			7,248				8,041
Total assets		$	1,612,328			$	1,529,545
LIABILITIES & STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable		$	37,640			$	35,915
Accrued salaries and benefits			21,667				22,044
Deferred revenue			21,179				29,980
EDA tools software licenses liability			14,815				14,884
Operating lease liabilities			6,035				6,310
Other current liabilities			10,150				11,441
Total current liabilities			111,486				120,574
Long-term operating lease liabilities			15,768				18,671
Long-term EDA tools software licenses liability			13,367				20,908
Other long-term liabilities			5,048				4,967
Total long-term liabilities			34,183				44,546
Total stockholders’ equity			1,466,659				1,364,425
Total liabilities and stockholders’ equity		$	1,612,328			$	1,529,545

Rambus Inc.
Condensed Consolidated Statements of Income
(Unaudited)

		Three Months Ended June 30,								Six Months Ended June 30,
(In thousands, except per share amounts)		2026				2025				2026				2025
Revenue:
Product revenue		$	99,154			$	81,325			$	187,156			$	157,634
Royalties			84,261				68,607				153,903				142,582
Contract and other revenue			23,970				22,277				46,515				38,657
Total revenue			207,385				172,209				387,574				338,873
Cost of revenue:
Cost of product revenue			39,575				32,418				73,304				63,001
Cost of contract and other revenue			778				631				1,906				1,177
Amortization of acquired intangible assets			1,620				1,721				3,295				3,434
Total cost of revenue			41,973				34,770				78,505				67,612
Gross profit			165,412				137,439				309,069				271,261
Operating expenses:
Research and development			51,099				46,331				101,328				88,951
Sales, general and administrative			38,262				28,115				69,932				56,173
Restructuring charges			3,320				—				3,320				—
Total operating expenses			92,681				74,446				174,580				145,124
Operating income			72,731				62,993				134,489				126,137
Interest income and other income (expense), net			7,060				5,228				14,211				10,084
Interest expense			(302)				(382)				(581)				(759)
Interest and other income (expense), net			6,758				4,846				13,630				9,325
Income before income taxes			79,489				67,839				148,119				135,462
Provision for income taxes			11,884				9,904				20,656				17,224
Net income		$	67,605			$	57,935			$	127,463			$	118,238
Net income per share:
Basic		$	0.62			$	0.54			$	1.18			$	1.10
Diluted		$	0.61			$	0.53			$	1.16			$	1.09
Weighted-average shares used in per share calculations:
Basic			108,428				107,586				108,230				107,412
Diluted			109,977				108,520				109,852				108,639

Rambus Inc.
Supplemental Reconciliation of GAAP to Non-GAAP Results
(Unaudited)

		Three Months Ended June 30,
(In thousands, except per share amounts)		2026				2025
Cost of product revenue		$	39,575			$	32,418
Adjustment:
Stock-based compensation expense			(188)				(227)
Non-GAAP cost of product revenue		$	39,387			$	32,191
Total operating expenses		$	92,681			$	74,446
Adjustments:
Stock-based compensation expense			(15,698)				(14,006)
Restructuring charges			(3,320)				—
Facility closure costs			(104)				—
Acquisition-related costs			—				(84
Non-GAAP total operating expenses		$	73,559			$	60,356
Operating income		$	72,731			$	62,993
Adjustments:
Stock-based compensation expense			15,886				14,233
Amortization of acquired intangible assets			1,620				1,721
Restructuring charges			3,320				—
Facility closure costs			104				—
Acquisition-related costs			—				84
Non-GAAP total operating income		$	93,661			$	79,031
Net income		$	67,605			$	57,935
Stock-based compensation expense			15,886				14,233
Amortization of acquired intangible assets			1,620				1,721
Restructuring charges			3,320				—
Facility closure costs			104				—
Acquisition-related costs			—				84
Income tax adjustment			(4,183)				(6,871)
Non-GAAP net income		$	84,352			$	67,102
Non-GAAP diluted earnings per share		$	0.77			$	0.62
Weighted-average shares used in non-GAAP diluted per share calculation			109,977				108,520

Rambus Inc.
Reconciliation of GAAP Forward-Looking Estimates to Non-GAAP Forward-Looking Estimates
(Unaudited)

2026 Third Quarter Outlook		Three Months Ended September 30, 2026
(In millions, except per share amounts)		Low				High
Forward-looking operating costs and expenses		$	137.0			$	133.0
Adjustments:
Stock-based compensation expense			(15.7)				(15.7)
Amortization of acquired intangible assets			(1.5)				(1.5)
Other			(0.8)				(0.8)
Forward-looking Non-GAAP operating costs and expenses		$	119.0			$	115.0
Forward-looking net income		$	65.0			$	73.2
Adjustments:
Stock-based compensation expense			15.7				15.7
Amortization of acquired intangible assets			1.5				1.5
Other			0.8				0.8
Income tax adjustment			(0.7)				(0.5)
Forward-looking Non-GAAP net income		$	82.3			$	90.7
Forward-looking Non-GAAP diluted earnings per share		$	0.75			$	0.82
Forward-looking weighted-average shares used in non-GAAP diluted per share calculation			110.0				110.0