UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_______________________________

FORM 10-Q

_______________________________

(Mark One)

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2017

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIESEXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission File Number: 000-22339

_______________________________

RAMBUS INC.

(Exact name of registrant as specified in its charter)

_______________________________

Delaware	94-3112828
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1050 Enterprise Way, Suite 700  Sunnyvale, California	94089
(Address of principal executive offices)	(ZIP Code)

Registrant’s telephone number, including area code: (408) 462-8000

_______________________________

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 ý  No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files).  Yes ý  No o

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.

Large accelerated filer ý	Accelerated filer o
Non-accelerated filer o (Do not check if a smaller reporting company)	Smaller reporting company o
Emerging growth company o

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 7(a)(2)(B) of the Securities Act. o

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

The number of shares outstanding of the registrant’s Common Stock, par value $.001 per share, was 109,778,058 as of September 30, 2017.

RAMBUS INC.

TABLE OF CONTENTS

	PAGE
Note Regarding Forward-Looking Statements	4
PART I. FINANCIAL INFORMATION	6
Item 1. Financial Statements (Unaudited):	6
Condensed Consolidated Balance Sheets as of September 30, 2017 and December 31, 2016	6
Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2017 and 2016	7
Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2017 and 2016	8
Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2017 and 2016	9
Notes to Unaudited Condensed Consolidated Financial Statements	10
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	26
Item 3. Quantitative and Qualitative Disclosures about Market Risk	40
Item 4. Controls and Procedures	40
PART II. OTHER INFORMATION	41
Item 1. Legal Proceedings	41
Item 1A. Risk Factors	41
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	54
Item 3. Defaults Upon Senior Securities	54
Item 4. Mine Safety Disclosures	54
Item 5. Other Information	55
Item 6. Exhibits	55
Signature	56
Exhibit Index	57

3

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 Act of 1934. These forward-looking statements include, without limitation, predictions regarding the following aspects of our future:

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

• Sources of competition;

• Research and development costs and improvements in technology;

• Sources, amounts and concentration of revenue, including royalties;

• Success in signing and renewing license agreements;

• Terms of our licenses and amounts owed under license agreements;

• Technology product development;

• Dispositions, acquisitions, mergers or strategic transactions and our related integration efforts, including our acquisitions of Smart Card Software Ltd., the assets of Semtech Corporation's Snowbush IP group and Inphi Corporation's Memory Interconnect Business;

• Impairment of goodwill and long-lived assets;

• Pricing policies of our customers;

• 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 lighting, memory, chip, mobile payments, smart ticketing and security;

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

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

• Engineering, sales and general and administration expenses;

• Contract revenue;

• Operating results;

• International licenses, operations and expansion;

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

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

• Effects of government regulations on our industry and business;

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

• Growth in our business;

• Methods, estimates and judgments in accounting policies;

• Adoption of new accounting pronouncements, including our expectations regarding the new revenue recognition standard on our financial position, results of operations or cash flows;

• Effective tax rates;

• Restructurings and plans of termination;

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

• Trading price of our common stock;

• Internal control environment;

• The level and terms of our outstanding debt and the repayment or financing of such debt;

• Protection of intellectual property;

• Any changes in laws, agency actions and judicial rulings that may impact the ability to enforce intellectual property rights;

• Indemnification and technical support obligations;

• Equity repurchase plans;

4

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

• Effects of fluctuations in currency exchange rates;

• Outcome and effect of potential future intellectual property litigation and other significant litigation; and

• Likelihood of paying dividends.

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.

5

PART I—FINANCIAL INFORMATION

Item 1. Financial Statements

RAMBUS INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	September 30, 2017			December 31, 2016
	(In thousands, except shares and par value)
ASSETS
Current assets:
Cash and cash equivalents	$	182,345		$	135,294
Marketable securities	1,287			36,888
Accounts receivable	49,799			21,099
Inventories	5,015			5,633
Prepaids and other current assets	10,998			17,867
Total current assets	249,444			216,781
Intangible assets, net	102,545			132,388
Goodwill	209,318			204,794
Property, plant and equipment, net	54,035			58,442
Deferred tax assets	206,503			168,342
Other assets	2,283			2,749
Total assets	$	824,128		$	783,496
LIABILITIES &STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	7,016		$	9,793
Accrued salaries and benefits	12,278			14,177
Convertible notes, short-term	131,490			—
Deferred revenue	21,224			16,932
Other current liabilities	10,731			10,399
Total current liabilities	182,739			51,301
Convertible notes, long-term	—			126,167
Long-term imputed financing obligation	37,471			38,029
Other long-term liabilities	14,381			15,217
Total liabilities	234,591			230,714
Commitments and contingencies (Notes 9 and 13)
Stockholders’ equity:
Convertible preferred stock, $.001 par value:
Authorized: 5,000,000 shares
Issued and outstanding: no shares at September 30, 2017 and December 31, 2016	—			—
Common stock, $.001 par value:
Authorized: 500,000,000 shares
Issued and outstanding: 109,778,058 shares at September 30, 2017 and 111,053,734 shares at December 31, 2016	110			111
Additional paid-in capital	1,187,987			1,181,230
Accumulated deficit	(592,863		)	(615,051		)
Accumulated other comprehensive loss	(5,697		)	(13,508		)
Total stockholders’ equity	589,537			552,782
Total liabilities and stockholders’ equity	$	824,128		$	783,496

See Notes to Unaudited Condensed Consolidated Financial Statements

6

RAMBUS INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
	(In thousands, except per share amounts)
Revenue:
Royalties	$	72,787		$	68,298		$	211,733		$	194,010
Product revenue	8,661			7,092			27,966			14,306
Contract and other revenue	17,686			14,465			51,506			30,722
Total revenue	99,134			89,855			291,205			239,038
Operating costs and expenses:
Cost of product revenue*	5,152			7,031			17,882			12,581
Cost of contract and other revenue	14,456			12,393			43,274			33,139
Research and development*	36,196			33,820			109,718			91,100
Sales, general and administrative*	26,799			24,795			82,122			69,679
Gain from sale of intellectual property	(479		)	—			(479		)	—
Gain from settlement	—			—			—			(579		)
Total operating costs and expenses	82,124			78,039			252,517			205,920
Operating income	17,010			11,816			38,688			33,118
Interest income and other income (expense), net	208			142			491			1,522
Interest expense	(3,287		)	(3,193		)	(9,754		)	(9,497		)
Interest and other income (expense), net	(3,079		)	(3,051		)	(9,263		)	(7,975		)
Income before income taxes	13,931			8,765			29,425			25,143
Provision for income taxes	6,236			4,254			16,119			14,878
Net income	$	7,695		$	4,511		$	13,306		$	10,265
Net income per share:
Basic	$	0.07		$	0.04		$	0.12		$	0.09
Diluted	$	0.07		$	0.04		$	0.12		$	0.09
Weighted average shares used in per share calculation:
Basic	109,555			110,214			110,353			109,951
Diluted	113,119			113,723			113,861			112,805

_________________________________________

*    Includes stock-based compensation:

Cost of product revenue	$	20	$	14	$	53	$	42
Research and development	$	2,969	$	2,337	$	9,048	$	6,526
Sales, general and administrative	$	3,975	$	3,092	$	11,068	$	8,788

See Notes to Unaudited Condensed Consolidated Financial Statements

7

RAMBUS INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
(In thousands)	2017		2016			2017		2016
Net income	$	7,695	$	4,511		$	13,306	$	10,265
Other comprehensive income (loss):
Foreign currency translation adjustment	2,581		(2,704		)	7,177		(8,903		)
Unrealized gain (loss) on marketable securities, net of tax	339		(374		)	634		(745		)
Total comprehensive income	$	10,615	$	1,433		$	21,117	$	617

See Notes to Unaudited Condensed Consolidated Financial Statements

8

RAMBUS INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Nine Months Ended
	September 30,
	2017			2016
	(In thousands)
Cash flows from operating activities:
Net income	$	13,306		$	10,265
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	20,169			15,356
Depreciation	9,971			9,388
Amortization of intangible assets	31,436			26,045
Non-cash interest expense and amortization of convertible debt issuance costs	5,324			5,025
Deferred income taxes	(4,108		)	(4,157		)
Excess tax benefits from stock-based compensation	—			(927		)
(Gain) loss from disposal of property, plant and equipment	169			(29		)
Effect of exchange rate on assumed cash liability from acquisition	—			(985		)
Change in operating assets and liabilities, net of impact of acquisitions:
Accounts receivable	(23,656		)	333
Prepaid expenses and other assets	6,824			(3,143		)
Inventories	617			(744		)
Accounts payable	(2,795		)	2,302
Accrued salaries and benefits and other liabilities	(2,658		)	(4,772		)
Deferred revenue	3,248			7,532
Net cash provided by operating activities	57,847			61,489
Cash flows from investing activities:
Purchases of property, plant and equipment	(5,444		)	(4,750		)
Acquisition of intangible assets	(120		)	—
Purchases of marketable securities	—			(54,869		)
Maturities of marketable securities	32,048			85,746
Proceeds from sale of marketable securities	4,450			50,546
Proceeds from sale of property, plant and equipment	28			—
Acquisitions of businesses, net of cash acquired	—			(202,523		)
Net cash provided by (used in) investing activities	30,962			(125,850		)
Cash flows from financing activities:
Proceeds received from issuance of common stock under employee stock plans	10,792			12,277
Principal payments against lease financing obligation	(625		)	(476		)
Payments of taxes on restricted stock units	(3,525		)	(1,861		)
Repurchase and retirement of common stock, including prepayment under accelerated share repurchase program	(50,036		)	—
Excess tax benefits from stock-based compensation	—			927
Net cash provided by (used in) financing activities	(43,394		)	10,867
Effect of exchange rate changes on cash and cash equivalents	1,636			(791		)
Net increase (decrease) in cash and cash equivalents	47,051			(54,285		)
Cash and cash equivalents at beginning of period	135,294			143,764
Cash and cash equivalents at end of period	$	182,345		$	89,479
Non-cash investing activities during the period:
Property, plant and equipment received and accrued in accounts payable and other liabilities	$	1,294		$	1,344
Non-cash financing activities during the period:
Additional purchase consideration from acquisition	$	—		$	10,779

See Notes to Unaudited Condensed Consolidated Financial Statements

9

RAMBUS INC.

NOTES TO UNAUDITEDCONDENSEDCONSOLIDATED FINANCIAL STATEMENTS

1. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements include the accounts of Rambus Inc. (“Rambus” or the “Company”) and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in the accompanying unaudited condensed consolidated financial statements.

In the opinion of management, the unaudited condensed consolidated financial statements include all adjustments (consisting only of normal recurring items) necessary to state fairly the financial position and results of operations for each interim period presented. Interim results are not necessarily indicative of results for a full year.

The unaudited condensed consolidated financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (the “SEC”) applicable to interim financial information. Certain information and Note disclosures included in the financial statements prepared in accordance with generally accepted accounting principles have been omitted in these interim statements pursuant to such SEC rules and regulations. The information included in this Form 10-Q should be read in conjunction with the consolidated financial statements and notes thereto in Form 10-K for the year ended December 31, 2016.

Operating Segment Definitions

Operating segments are based upon Rambus' internal organization structure, the manner in which its operations are managed, the criteria used by its Chief Operating Decision Maker ("CODM") to evaluate segment performance and availability of separate financial information regularly reviewed for resource allocation and performance assessment.

The Company determined its CODM to be the Chief Executive Officer and determined its operating segments to be: (1) Memory and Interfaces Division ("MID"), which focuses on the design, development, manufacturing through partnerships and licensing of technology and solutions that is related to memory and interfaces; (2) Rambus Security Division ("RSD"), which focuses on the design, development, deployment and licensing of technologies for chip, system and in-field application security, anti-counterfeiting, smart ticketing and mobile payments; (3) Emerging Solutions Division ("ESD"), which includes the Rambus Labs team, the computational sensing and imaging group as well as the development efforts in the area of emerging technologies; and (4) Rambus Lighting Division ("RLD"), which focuses on the design, development and licensing of technologies for advanced LED-based lighting solutions.

For the three and nine months ended September 30, 2017, only MID and RSD were reportable segments as each of them met the quantitative thresholds for disclosure as a reportable segment. The results of the remaining other operating segments were shown under “Other.”

Reclassifications

Certain prior periods' amounts were reclassified to conform to the current year’s presentation. None of these reclassifications had an impact on reported net income for any of the periods presented. Product revenue and related cost of product revenue were reclassified from contract and other revenue and cost of contract and other revenue, respectively. Refer to the Unaudited Condensed Consolidated Statements of Operations.

2. Recent Accounting Pronouncements

In July 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2017-11,"Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480), Derivatives and Hedging (Topic 815)." The amendments in Part I of this ASU change the classification analysis of certain equity-linked financial instruments (or embedded features) with down round features. When determining whether certain financial instruments should be classified as liabilities or equity instruments, a down round feature no longer precludes equity classification when assessing whether the instrument is indexed to an entity’s own stock. The amendments also clarify existing disclosure requirements for equity-classified instruments. As a result, a freestanding equity-linked financial instrument (or embedded conversion option) no longer would be accounted for as a derivative liability at fair value as a result of the existence of a down round feature. For freestanding equity classified financial instruments, the amendments require entities that present earnings per share (EPS) in accordance with Topic 260 to recognize the effect of the down round feature when it is triggered. That effect is treated as a dividend and as a reduction of income available to common shareholders in basic EPS. Convertible instruments with embedded conversion options that have down round features are now subject to the specialized guidance for contingent beneficial

10

conversion features (in Subtopic 470-20, Debt-Debt with Conversion and Other Options), including related EPS guidance (in Topic 260). The amendments in Part II of this ASU recharacterize the indefinite deferral of certain provisions of Topic 480 that now are presented as pending content in the FASB codification, to a scope exception. Those amendments do not have an accounting effect. This ASU is effective for interim and annual reporting periods beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the impact that this guidance will have on its consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, "Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting," which amends the scope of modification accounting for share-based payment arrangements. Specifically, an entity would not apply modification accounting if the fair value, vesting conditions, and classification of the awards are the same immediately before and after the modification. This ASU is effective for interim and annual reporting periods beginning after December 15, 2017. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the impact that this guidance will have on its consolidated financial statements.

In March 2017, the FASB issued ASU No. 2017-08, "Receivables - Nonrefundable Fees and Other Costs (Topic 310): Premium Amortization on Purchased Callable Debt Securities," which amends the amortization period for certain purchased callable debt securities held at a premium. This ASU will shorten the amortization period for the premium to be amortized to the earliest call date. This ASU does not apply to securities held at a discount, which will continue to be amortized to maturity. This ASU is effective for interim and annual reporting periods beginning after December 15, 2018. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the impact that this guidance will have on its consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment," which removes Step 2 of the goodwill impairment test. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted, including adoption in an interim period. The Company is currently evaluating the impact that this guidance will have on its consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-01, "Business Combinations (Topic 805): Clarifying the Definition of a Business." The amendment seeks to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects many areas of accounting including acquisitions, disposals, goodwill and consolidation. This ASU is effective for interim and annual reporting periods beginning after December 15, 2017, including interim periods within those periods. The amendments should be applied prospectively on or after the effective dates. The Company is currently evaluating the impact that this guidance will have on its consolidated financial statements.

In August 2016, the FASB issued ASU No. 2016-15 which amends the guidance on the classification of certain cash receipts and payments in the statement of cash flows. This ASU is effective for annual and interim reporting periods beginning after December 15, 2017 and is applied retrospectively. Early adoption is permitted including adoption in an interim period. The Company is currently evaluating the impact that this guidance will have on its financial condition and results of operations.

In June 2016, the FASB issued ASU No. 2016-13. The purpose of this ASU is to require a financial asset measured at amortized cost basis to be presented at the net amount expected to be collected. Credit losses relating to available-for-sale debt securities should be recorded through an allowance for credit losses. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019. The Company is currently evaluating the impact that this guidance will have on its financial condition and results of operations.

In March 2016, the FASB issued ASU No. 2016-09, "Improvements to Employee Share-Based Payment Accounting." This ASU simplifies the accounting for share-based payment transactions including the accounting for income taxes, forfeitures, statutory tax withholding requirements and classification in the statement of cash flows. The updated standard no longer requires cash flows related to excess tax benefits to be presented as a financing activity separate from other income tax cash flows. The update also allows entities to repurchase more of an employee's shares for tax withholding purposes without triggering liability accounting, clarifies that all cash payments to taxing authorities made on an employee's behalf for withheld shares should be presented as a financing activity on the statement of cash flows, and provides for an accounting policy election to account for forfeitures as they occur. The Company adopted this ASU on January 1, 2017. The impact of the adoption is as follows:

•This ASU requires excess tax benefits to be recognized regardless of whether the benefit reduces taxes payable. The adoption of this guidance on a modified retrospective basis resulted in the recognition of a cumulative-effect adjustment of $38.2 million that reduced the Company's accumulated deficit and increased its deferred tax assets as of January 1, 2017. The previously unrecognized California excess tax effects were recorded as a deferred tax asset net of a valuation allowance.

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•The Company has elected to continue to estimate forfeitures expected to occur to determine the amount of stock-based compensation cost to be recognized in each period. As such, the guidance relating to forfeitures did not have an impact on its accumulated deficit as of January 1, 2017.

•Additionally, the Company anticipates the potential for increased periodic volatility in future effective tax rates as a result of the continued application of ASU No. 2016-09.

In February 2016, the FASB issued ASU No. 2016-02, "Leases." This ASU requires lessees to recognize right-of-use assets and liabilities for operating leases, initially measured at the present value of the lease payments, on the balance sheet. In addition, it requires lessees to recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term, generally on a straight-line basis. This ASU will become effective for the Company in the first quarter of fiscal year 2019, and requires adoption using a modified retrospective approach. The Company is evaluating the impact of adopting this new accounting standard update on its consolidated financial statements and related disclosures and anticipates this new guidance will materially impact the Company’s financial statements given the Company has a significant number of operating leases.

In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory (Topic 330)," which applies to inventory that is measured using first-in, first-out (“FIFO”) or average cost. Under the updated guidance, an entity should measure inventory that is within scope at the lower of cost and net realizable value, which is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. Subsequent measurement is unchanged for inventory that is measured using last-in, last-out (“LIFO”). This ASU is effective for annual and interim periods beginning after December 15, 2016, and should be applied prospectively with early adoption permitted at the beginning of an interim or annual reporting period. The Company adopted this ASU on January 1, 2017. The adoption of this ASU did not have a material impact on the Company's consolidated financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers(Topic 606) (“Standard”). The core principle of the Standard is for a company to recognize revenue for goods or services transferred to customers in an amount that reflects the consideration to which it expects to be entitled in exchange for those goods or services. To do so, a company will be required to exercise more judgment and make more estimates than under current guidance, including in identifying the performance obligations included in the arrangement, estimating and revising the variable consideration, if any, to be included in the transaction price and allocating the transaction price to distinct performance obligations. The FASB further clarified the Standard by issuing ASU No. 2016-10 (Identifying Performance Obligations and Licensing); ASU No. 2016-12 (Narrow-Scope Improvements and Practical Expedients); and ASU No. 2016-20 (Technical Corrections and Improvements).

The Standard may be applied retrospectively to each prior period presented (full retrospective method) or retrospectively with the cumulative effect recognized as of the date of initial application (modified retrospective method). The Standard, as amended, is effective for the Company on January 1, 2018. The Company has yet to make a final decision regarding the adoption method it will use but believes it will adopt the Standard on a full retrospective basis, with a cumulative-effect adjustment to the opening balance of retained earnings on January 1, 2016 determined on the basis of the impact of the Standard on the accounting for contracts that are not completed as of that date.

Although the Company has yet to finalize its evaluation and quantification of the effects that the Standard will have on its consolidated financial statements, and to finalize the design and implementation of related changes to its policies, procedures and controls, the Company expects the Standard to materially impact the timing of revenue recognition for its fixed-fee intellectual property (IP) licensing arrangements (including certain fixed-fee agreements that license the Company's existing IP portfolio as well as IP added to this portfolio during the license term) as a majority of such revenue would be recognized at inception of the license term, as opposed to over time as is the case under current U.S. GAAP, and the Company will be required to compute and recognize interest income over time as control over the IP generally transfers significantly in advance of cash being received from customers. In addition, the Company is currently assessing its minimum guarantee contracts to determine whether, under the Standard, revenue should be recognized at contract inception or over the contract term. The Company expects that any change to current revenue recognition practices may significantly increase volatility in its quarterly revenue trends.

In accordance with existing U.S. GAAP, the Company currently recognizes revenue from per-unit royalty-based IP licenses in the period the licensee reports its sales, generally in the quarter after the underlying sales by the licensee occurred. On adoption of the Standard, such royalties will be recognized as revenue during the period in which the licensee's sales are estimated to have occurred, which will result in an adjustment to revenue when actual amounts are subsequently reported by the Company's licensees.

Aspart of the Company’s assessment and implementation plan, the Company is evaluating and implementing changes to its policies, procedures and controls.

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3. Earnings Per Share

Basic earnings per share is calculated by dividing the net income by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated by dividing the earnings by the weighted average number of common shares and potentially dilutive securities outstanding during the period. Potentially dilutive common shares consist of incremental common shares issuable upon exercise of stock options, employee stock purchases, restricted stock and restricted stock units and shares issuable upon the conversion of convertible notes. The dilutive effect of outstanding shares is reflected in diluted earnings per share by application of the treasury stock method. This method includes consideration of the amounts to be paid by the employees and the amount of unrecognized stock-based compensation related to future services. No potential dilutive common shares are included in the computation of any diluted per share amount when a net loss is reported.

The following table sets forth the computation of basic and diluted net income per share:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Net income per share:	(In thousands, except per share amounts)
Numerator:
Net income	$	7,695	$	4,511	$	13,306	$	10,265
Denominator:
Weighted-average shares outstanding - basic	109,555		110,214		110,353		109,951
Effect of potential dilutive common shares	3,564		3,509		3,508		2,854
Weighted-average shares outstanding - diluted	113,119		113,723		113,861		112,805
Basic net income per share	$	0.07	$	0.04	$	0.12	$	0.09
Diluted net income per share	$	0.07	$	0.04	$	0.12	$	0.09

For the three months ended September 30, 2017 and 2016, options to purchase approximately 1.8 million and 1.8 million shares, respectively, and for the nine months ended September 30, 2017 and 2016, options to purchase approximately 1.9 million and 2.2 million shares, respectively, were excluded from the calculation because they were anti-dilutive after considering proceeds from exercise and related unrecognized stock-based compensation expense.

4. Intangible Assets and Goodwill

Goodwill

The following tables present goodwill information for each of the reportable segments for the nine months ended September 30, 2017:

Reportable Segment:	As of December 31, 2016		Additions to Goodwill (1)		Impairment of Goodwill		Effect of Exchange Rates (2)		As of September 30, 2017
	(In thousands)
MID	$	66,643	$	—	$	—	$	—	$	66,643
RSD	138,151		803		—		3,721		142,675
Total	$	204,794	$	803	$	—	$	3,721	$	209,318

(1) During the first quarter of 2017, the Company corrected an immaterial error related to an overstatement in prepaids and other current assets that originated in 2016.

(2) Effect of exchange rates relates to foreign currency translation adjustments for the period.

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	As of
	September 30, 2017
Reportable Segment:	Gross Carrying Amount		Accumulated Impairment Losses			Net Carrying Amount
	(In thousands)
MID	$	66,643	$	—		$	66,643
RSD	142,675		—			142,675
Other	21,770		(21,770		)	—
Total	$	231,088	$	(21,770	)	$	209,318

Intangible Assets

The components of the Company’s intangible assets as of September 30, 2017 and December 31, 2016 were as follows:

		As of September 30, 2017
	Useful Life	Gross Carrying Amount (1)		Accumulated Amortization			Net Carrying Amount
		(In thousands)
Existing technology	3 to 10 years	$	258,792	$	(183,590	)	$	75,202
Customer contracts and contractual relationships	1 to 10 years	68,376		(46,133		)	22,243
Non-compete agreements and trademarks	3 years	300		(300		)	—
In-process research and development	Not applicable	5,100		—			5,100
Total intangible assets		$	332,568	$	(230,023	)	$	102,545

(1) The change in gross carrying amount reflects the effects of exchange rates during the period.

		As of December 31, 2016
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
		(In thousands)
Existing technology	3 to 10 years	$	256,656	$	(156,577	)	$	100,079
Customer contracts and contractual relationships	1 to 10 years	65,109		(37,900		)	27,209
Non-compete agreements and trademarks	3 years	300		(300		)	—
In-process research and development	Not applicable	5,100		—			5,100
Total intangible assets		$	327,165	$	(194,777	)	$	132,388

During the three and nine months ended September 30, 2017, the Company acquired patents related to its memory technology for an immaterial amount. During the three and nine months ended September 30, 2016, the Company did not sell any intangible assets.

Included in customer contracts and contractual relationships are favorable contracts which are acquired software and service agreements where the Company has no performance obligations. Cash received from these acquired favorable contracts reduces the favorable contract intangible asset. For the three months ended September 30, 2017 and 2016, the Company received $0.5 million and $0.6 million, respectively, related to the favorable contracts. For the nine months ended September 30, 2017 and 2016, the Company received $2.8 million and $4.7 million, respectively, related to the favorable contracts. As of September 30, 2017 and December 31, 2016, the net balance of the favorable contract intangible assets was $2.2 million and $3.6 million, respectively.

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Amortization expense for intangible assets for the three and nine months ended September 30, 2017 was $10.5 million and $31.4 million, respectively. Amortization expense for intangible assets for the three and nine months ended September 30, 2016, was $10.2 million and $26.0 million, respectively. The estimated future amortization of intangible assets as of September 30, 2017 was as follows (amounts in thousands):

Years Ending December 31:	Amount
2017 (remaining 3 months)	$	11,775
2018	29,624
2019	19,877
2020	19,133
2021	12,653
Thereafter	9,483
	$	102,545

It is reasonably possible that the businesses could perform significantly below the Company's expectations or a deterioration of market and economic conditions could occur. This would adversely impact the Company's ability to meet its projected results, which could cause the goodwill in any of its reporting units or long-lived assets in any of its asset groups to become impaired. Significant differences between these estimates and actual cash flows could materially affect the Company's future financial results. If the Company determines that its goodwill or long-lived assets are impaired, it would be required to record a non-cash charge that could have a material adverse effect on its results of operations and financial position.

5.Segments and Major Customers

For the three and nine months ended September 30, 2017, MID and RSD were reportable segments as each of them met the quantitative thresholds for disclosure as a reportable segment. The results of the remaining operating segments were shown under “Other.”

The Company evaluates the performance of its segments based on segment operating income (loss), which is defined as revenue minus segment operating expenses. Segment operating expenses are comprised of direct operating expenses.

Segment operating expenses do not include sales, general and administrative expenses and the allocation of certain expenses managed at the corporate level, such as stock-based compensation, amortization, and certain bonus and acquisition costs. The “Reconciling Items” category includes these unallocated sales, general and administrative expenses as well as corporate level expenses.

The tables below present reported segment operating income (loss) for the three and nine months ended September 30, 2017 and 2016, respectively.

	For the Three Months Ended September 30, 2017										For the Nine Months Ended September 30, 2017
	MID		RSD		Other			Total			MID		RSD		Other			Total
	(In thousands)										(In thousands)
Revenues	$	68,787	$	26,312	$	4,035		$	99,134		$	206,784	$	72,883	$	11,538		$	291,205
Segment operating expenses	21,130		11,796		7,802			40,728			65,187		36,409		25,191			126,787
Segment operating income (loss)	$	47,657	$	14,516	$	(3,767	)	$	58,406		$	141,597	$	36,474	$	(13,653	)	$	164,418
Reconciling items								(41,396		)								(125,730		)
Operating income								$	17,010									$	38,688
Interest and other income (expense), net								(3,079		)								(9,263		)
Income before income taxes								$	13,931									$	29,425

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	For the Three Months Ended September 30, 2016										For the Nine Months Ended September 30, 2016
	MID		RSD		Other			Total			MID		RSD		Other			Total
	(In thousands)										(In thousands)
Revenues	$	63,142	$	22,532	$	4,181		$	89,855		$	171,154	$	53,040	$	14,844		$	239,038
Segment operating expenses	20,060		12,493		6,840			39,393			44,797		37,507		21,594			103,898
Segment operating income (loss)	$	43,082	$	10,039	$	(2,659	)	$	50,462		$	126,357	$	15,533	$	(6,750	)	$	135,140
Reconciling items								(38,646		)								(102,022		)
Operating income								$	11,816									$	33,118
Interest and other income (expense), net								(3,051		)								(7,975		)
Income before income taxes								$	8,765									$	25,143

The Company’s CODM does not review information regarding assets on an operating segment basis. Additionally, the Company does not record intersegment revenue or expense.

Accounts receivable from the Company's major customers representing 10% or more of total accounts receivable at September 30, 2017 and December 31, 2016, respectively, was as follows:

	As of
Customer	September 30, 2017		December 31, 2016
Customer 1 (RSD reportable segment)	*		17	%
Customer 2 (Other segment)	*		12	%
Customer 3 (MID reportable segment)	12	%	13	%
Customer 4 (MID reportable segment)	19	%	*
Customer 5 (MID reportable segment)	10	%	*

_________________________________________

*    Customer accounted for less than 10% of total accounts receivable in the period

Revenue from the Company’s major customers representing 10% or more of total revenue for the three and nine months ended September 30, 2017 and 2016, respectively, was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
Customer	2017		2016		2017		2016
Customer A (MID and RSD reportable segments)	18	%	17	%	17	%	20	%
Customer B (MID reportable segment)	12	%	19	%	13	%	20	%
Customer C (MID reportable segment)	13	%	13	%	13	%	13	%

Revenue from customers in the geographic regions based on the location of contracting parties was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In thousands)	2017		2016		2017		2016
South Korea	$	29,476	$	32,519	$	86,736	$	95,604
USA	43,532		32,951		123,115		84,835
Japan	4,933		9,551		18,508		20,449
Europe	9,160		4,271		17,850		12,362
Canada	933		1,162		3,353		2,544
Singapore	4,927		4,429		17,563		13,574
Asia-Other	6,173		4,972		24,080		9,670
Total	$	99,134	$	89,855	$	291,205	$	239,038

6. Marketable Securities

Rambus invests its excess cash and cash equivalents primarily in U.S. government-sponsored obligations, commercial paper, corporate notes and bonds, money market funds and municipal notes and bonds that mature within three years.  As of

16

September 30, 2017 and December 31, 2016, all of the Company’s cash equivalents and marketable securities had a remaining maturity of less than one year.

All cash equivalents and marketable securities are classified as available-for-sale. Total cash, cash equivalents and marketable securities are summarized as follows:

	As of September 30, 2017
(In thousands)	Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Weighted Rate of Return
Money market funds	$	12,882	$	12,882	$	—	$	—		0.90	%
U.S. Government bonds and notes	30,489		30,491		—		(2		)	0.95	%
Corporate notes, bonds, commercial paper and other	98,887		98,900		—		(13		)	1.13	%
Total cash equivalents and marketable securities	142,258		142,273		—		(15		)
Cash	41,374		41,374		—		—
Total cash, cash equivalents and marketable securities	$	183,632	$	183,647	$	—	$	(15	)

	As of December 31, 2016
(In thousands)	Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Weighted Rate of Return
Money market funds	$	10,681	$	10,681	$	—	$	—		0.41	%
U.S. Government bonds and notes	48,292		48,291		1		—			0.39	%
Corporate notes, bonds, commercial paper and other	62,178		62,199		—		(21		)	0.66	%
Total cash equivalents and marketable securities	121,151		121,171		1		(21		)
Cash	51,031		51,031		—		—
Total cash, cash equivalents and marketable securities	$	172,182	$	172,202	$	1	$	(21	)

Available-for-sale securities are reported at fair value on the balance sheets and classified as follows:

	As of
	September 30, 2017		December 31, 2016
	(In thousands)
Cash equivalents	$	140,971	$	84,263
Short term marketable securities	1,287		36,888
Total cash equivalents and marketable securities	142,258		121,151
Cash	41,374		51,031
Total cash, cash equivalents and marketable securities	$	183,632	$	172,182

The Company continues to invest in highly rated quality, highly liquid debt securities. As of September 30, 2017, these securities have a remaining maturity of less than one year. The Company holds all of its marketable securities as available-for-sale, marks them to market, and regularly reviews its portfolio to ensure adherence to its investment policy and to monitor individual investments for risk analysis, proper valuation, and unrealized losses that may be other than temporary.

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The estimated fair value of cash equivalents and marketable securities classified by the length of time that the securities have been in a continuous unrealized loss position at September 30, 2017 and December 31, 2016 are as follows:

	Fair Value				Gross Unrealized Loss
	September 30, 2017		December 31, 2016		September 30, 2017			December 31, 2016
	(In thousands)
Less than one year
U.S. Government bonds and notes	$	27,489	$	18,395	$	(2	)	$	—
Corporate notes, bonds and commercial paper	97,600		54,377		(13		)	(21		)
Total Corporate notes, bonds, and commercial paper and U.S. Government bonds and notes	$	125,089	$	72,772	$	(15	)	$	(21	)

The gross unrealized loss at September 30, 2017 and December 31, 2016 was not material in relation to the Company’s total available-for-sale portfolio. The gross unrealized loss can be primarily attributed to a combination of market conditions as well as the demand for and duration of the U.S. government-sponsored obligations and corporate notes and bonds. There is no need to sell these investments, and the Company believes that it can recover the amortized cost of these investments. The Company has found no evidence of impairment due to credit losses in its portfolio. Therefore, these unrealized losses were recorded in other comprehensive income. However, the Company cannot provide any assurance that its portfolio of cash, cash equivalents and marketable securities will not be impacted by adverse conditions in the financial markets, which may require the Company in the future to record an impairment charge for credit losses which could adversely impact its financial results.

See Note 7, “Fair Value of Financial Instruments,” for discussion regarding the fair value of the Company’s cash equivalents and marketable securities.

7. Fair Value of Financial Instruments

The following table presents the financial instruments that are carried at fair value and summarizes the valuation of its cash equivalents and marketable securities by the above pricing levels as of September 30, 2017 and December 31, 2016:

	As of September 30, 2017
	Total		Quoted Market Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Money market funds	$	12,882	$	12,882	$	—	$	—
U.S. Government bonds and notes	30,489		—		30,489		—
Corporate notes, bonds, commercial paper and other	98,887		1,287		97,600		—
Total available-for-sale securities	$	142,258	$	14,169	$	128,089	$	—

	As of December 31, 2016
	Total		Quoted Market Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
Money market funds	$	10,681	$	10,681	$	—	$	—
U.S. Government bonds and notes	48,292		—		48,292		—
Corporate notes, bonds, commercial paper and other	62,178		303		61,875		—
Total available-for-sale securities	$	121,151	$	10,984	$	110,167	$	—

The Company monitors its investments for other-than-temporary impairment and records appropriate reductions in carrying value when necessary. The Company monitors its investments for other-than-temporary losses by considering current factors,

18

including the economic environment, market conditions, operational performance and other specific factors relating to the business underlying the investment, reductions in carrying values when necessary and the Company’s ability and intent to hold the investment for a period of time which may be sufficient for anticipated recovery in the market. Any other-than-temporary loss is reported under “Interest and other income (expense), net” in the condensed consolidated statement of operations.

For the three and nine months ended September 30, 2017 and 2016, there were no transfers of financial instruments between different categories of fair value.

The following table presents the financial instruments that are not carried at fair value but require fair value disclosure as of September 30, 2017 and December 31, 2016:

	As of September 30, 2017						As of December 31, 2016
(In thousands)	Face Value		Carrying Value		Fair Value		Face Value		Carrying Value		Fair Value
1.125% Convertible Senior Notes due 2018 (the "2018 Notes")	$	138,000	$	131,490	$	163,737	$	138,000	$	126,167	$	173,961

The fair value of the convertible notes at each balance sheet date is determined based on recent quoted market prices for these notes which is a level 2 measurement. As discussed in Note 8, "Convertible Notes," as of September 30, 2017, the 2018 Notes are carried at their face value of $138.0 million, less any unamortized debt discount and unamortized debt issuance costs. The carrying value of other financial instruments, including accounts receivable, accounts payable and other liabilities, approximates fair value due to their short maturities.

8. Convertible Notes

The Company’s convertible notes are shown in the following table:

(In thousands)	As of September 30, 2017			As of December 31, 2016
1.125% Convertible Senior Notes due 2018	$	138,000		$	138,000
Unamortized discount	(6,014		)	(10,913		)
Unamortized debt issuance costs	(496		)	(920		)
Total convertible notes	$	131,490		$	126,167
Less current portion	131,490			—
Total long-term convertible notes	$	—		$	126,167

As of September 30, 2017, the 2018 Notes were reclassed from a long-term liability to a short-term liability as they will be due on August 15, 2018.

Interest expense related to the notes for the three and nine months ended September 30, 2017 and 2016 was as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
	(In thousands)
2018 Notes coupon interest at a rate of 1.125%	$	388	$	388	1,164		1,164
2018 Notes amortization of discount and debt issuance costs at an additional effective interest rate of 5.5%	1,801		1,699		5,324		5,025
Total interest expense on convertible notes	$	2,189	$	2,087	$	6,488	$	6,189

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9. Commitments and Contingencies

As of September 30, 2017, the Company’s material contractual obligations were as follows (in thousands):

	Total		Remainderof 2017		2018		2019		2020		2021		Thereafter
Contractual obligations (1)
Imputed financing obligation (2)	$	17,511	$	1,593	$	6,447	$	6,602	$	2,869	$	—	$	—
Leases and other contractual obligations	28,336		3,020		6,000		5,631		4,662		4,793		4,230
Software licenses (3)	16,317		2,609		10,176		3,532		—		—		—
Convertible notes	138,000		—		138,000		—		—		—		—
Interest payments related to convertible notes	1,552		—		1,552		—		—		—		—
Total	$	201,716	$	7,222	$	162,175	$	15,765	$	7,531	$	4,793	$	4,230

_________________________________________

(1) The above table does not reflect possible payments in connection with uncertain tax benefits of approximately $22.9 million including $20.7 million recorded as a reduction of long-term deferred tax assets and $2.2 million in long-term income taxes payable as of September 30, 2017. As noted below in Note 12, “Income Taxes,” although it is possible that some of the unrecognized tax benefits could be settled within the next 12 months, the Company cannot reasonably estimate the outcome at this time.

(2) With respect to the imputed financing obligation, the main components of the difference between the amount reflected in the contractual obligations table and the amount reflected on the unaudited condensed consolidated balance sheets are the interest on the imputed financing obligation and the estimated common area expenses over the future periods. The amount includes the amended Ohio lease and the amended Sunnyvale lease.

(3) The Company has commitments with various software vendors for non-cancellable agreements generally having terms longer than one year.

Building lease expense was approximately $1.2 million and $3.2 million for the three and nine months ended September 30, 2017, respectively. Building lease expense was approximately $1.1 million and $2.7 million for the three and nine months ended September 30, 2016, respectively. Deferred rent of $0.5 million and $0.5 million as of September 30, 2017 and December 31, 2016, respectively, was included primarily in other current liabilities.

Indemnification

From time to time, the Company indemnifies certain customers as a necessary means of doing business. Indemnification covers customers for losses suffered or incurred by them as a result of any patent, copyright, or other intellectual property infringement or any other claim by any third party arising as result of the applicable agreement with the Company. The Company generally attempts to limit the maximum amount of indemnification or liability that the Company could be exposed to under these agreements, however, this is not always possible. The fair value of the liability as of September 30, 2017 and December 31, 2016 is not material.

10. Equity Incentive Plans and Stock-Based Compensation

As of September 30, 2017, 5,287,247 shares of the 35,400,000 cumulative shares approved under both the current 2015 Equity Incentive Plan (the “2015 Plan”) and past 2006 Equity Incentive Plan (the “2006 Plan”) remain available for grant, which included an increase of 4,000,000 shares approved under the 2015 Plan. On April 23, 2015, the Company's stockholders approved the 2015 Plan, which authorizes 4,000,000 shares for future issuance plus the number of shares that remained available for grant under the 2006 Plan as of the effective date of the 2015 Plan. The 2015 Plan became effective and replaced the 2006 Plan on April 23, 2015. The 2015 Plan was the Company’s only plan for providing stock-based incentive awards to eligible employees, executive officers, non-employee directors and consultants as of September 30, 2017. No further awards will be made under the 2006 Plan, but the 2006 Plan will continue to govern awards previously granted under it. In addition, any shares subject to stock options or other awards granted under the 2006 Plan that on or after the effective date of the 2015 Plan are forfeited, cancelled, exchanged or surrendered or terminate under the 2006 Plan will become available for grant under the 2015 Plan.

20

A summary of shares available for grant under the Company’s plans is as follows:

	Shares Available for Grant
Shares available as of December 31, 2016	7,305,368
Stock options granted	(498,426	)
Stock options forfeited	1,858,653
Nonvested equity stock and stock units granted (1) (2)	(4,376,615	)
Nonvested equity stock and stock units forfeited (1)	998,267
Total available for grant as of September 30, 2017	5,287,247

_________________________________________

(1) For purposes of determining the number of shares available for grant under the 2015 Plan against the maximum number of shares authorized, each share of restricted stock granted reduces the number of shares available for grant by 1.5 shares and each share of restricted stock forfeited increases shares available for grant by 1.5 shares.

(2) Amount includes 394,853 shares that have been reserved for potential future issuance related to certain performance unit awards granted in the first and third quarters of 2017 and discussed under the section titled "Nonvested Equity Stock and Stock Units" below.

General Stock Option Information

The following table summarizes stock option activity under the 2006 Plan and 2015 Plan for the nine months ended September 30, 2017 and information regarding stock options outstanding, exercisable, and vested and expected to vest as of September 30, 2017.

	Options Outstanding
	Number of Shares		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (years)	Aggregate Intrinsic Value
	(In thousands, except per share amounts)
Outstanding as of December 31, 2016	7,008,833		$	9.34
Options granted	498,426		$	12.74
Options exercised	(989,613	)	$	7.12
Options forfeited	(1,858,653	)	$	10.54
Outstanding as of September 30, 2017	4,658,993		$	9.69	5.64	$	19,594
Vested or expected to vest at September 30, 2017	4,592,934		$	9.66	5.46	$	19,533
Options exercisable at September 30, 2017	3,621,650		$	9.13	4.87	$	17,843

No stock options that contain a market condition were granted during the three and nine months ended September 30, 2017. As of September 30, 2017 and December 31, 2016, there were 50,000 and 1,135,000, respectively, stock options outstanding that require the Company to achieve minimum market conditions in order for the options to become exercisable. The fair values of the options granted with a market condition were calculated, on their respective grant dates, using a binomial valuation model, which estimates the potential outcome of reaching the market condition based on simulated future stock prices.

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value for in-the-money options at September 30, 2017, based on the $13.35 closing stock price of Rambus’ common stock on September 29, 2017 on the NASDAQ Global Select Market, which would have been received by the option holders had all option holders exercised their options as of that date. The total number of in-the-money options outstanding and exercisable as of September 30, 2017 was 4,156,223 and 3,132,148, respectively.

Employee Stock Purchase Plan

Under the 2015 Employee Stock Purchase Plan ("2015 ESPP"), the Company issued 361,994 shares at a price of $10.33 per share during the nine months ended September 30, 2017. Under the 2015 ESPP, the Company issued 340,349 shares at a price of $8.96 per share during the nine months ended September 30, 2016. As of September 30, 2017, 1,089,649 shares under the 2015 ESPP remain available for issuance.

21

Stock-Based Compensation

For the nine months ended September 30, 2017 and 2016, the Company maintained stock plans covering a broad range of potential equity grants including stock options, nonvested equity stock and equity stock units and performance based instruments. In addition, the Company sponsors the 2015 ESPP, whereby eligible employees are entitled to purchase common stock semi-annually, by means of limited payroll deductions, at a 15% discount from the fair market value of the common stock as of specific dates.

Stock Options

During the three months ended September 30, 2017, the Company did not grant any stock options. During the nine months ended September 30, 2017, the Company granted 498,426 stock options with an estimated total grant-date fair value of $2.1 million. During the three and nine months ended September 30, 2017, the Company recorded stock-based compensation expense related to stock options of $0.7 million and $2.1 million, respectively.

During the three months ended September 30, 2016, the Company did not grant any stock options. During the nine months ended September 30, 2016, the Company granted 440,000 stock options with an estimated total grant-date fair value of $2.1 million. During the three and nine months ended September 30, 2016, the Company recorded stock-based compensation expense related to stock options of $1.0 million and $3.3 million, respectively.

As of September 30, 2017, there was $4.0 million of total unrecognized compensation cost, net of expected forfeitures, related to non-vested stock-based compensation arrangements granted under the stock option plans. That cost is expected to be recognized over a weighted-average period of 2.4 years. The total fair value of shares vested as of September 30, 2017 was $18.9 million.

The total intrinsic value of options exercised was $1.9 million and $5.7 million for the three and nine months ended September 30, 2017, respectively. The total intrinsic value of options exercised was $3.0 million and $7.0 million for the three and nine months ended September 30, 2016, respectively. Intrinsic value is the total value of exercised shares based on the price of the Company’s common stock at the time of exercise less the cash received from the employees to exercise the options.

During the nine months ended September 30, 2017, net proceeds from employee stock option exercises totaled approximately $7.1 million.

Employee Stock Purchase Plan

For the three and nine months ended September 30, 2017, the Company recorded compensation expense related to the 2015 ESPP of $0.4 million and $1.3 million, respectively. For the three and nine months ended September 30, 2016, the Company recorded compensation expense related to the 2015 ESPP of $0.3 million and $1.1 million, respectively. As of September 30, 2017, there was $0.1 million of total unrecognized compensation cost related to stock-based compensation arrangements granted under the 2015 ESPP. That cost is expected to be recognized over one month.

Tax benefits realized as a result of employee stock option exercises, stock purchase plan purchases, and vesting of equity stock and stock units for the three and nine months ended September 30, 2017 calculated in accordance with accounting for share-based payments were $0.2 million and $0.8 million, respectively. There were no tax benefits realized as a result of employee stock option exercises, stock purchase plan purchases, and vesting of equity stock and stock units for the three and nine months ended September 30, 2016 calculated in accordance with accounting for share-based payments.

Valuation Assumptions

The fair value of stock awards is estimated as of the grant date using the Black-Scholes-Merton (“BSM”) option-pricing model assuming a dividend yield of 0% and the additional weighted-average assumptions as listed in the table below.

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The following table presents the weighted-average assumptions used to estimate the fair value of stock options granted that contain only service conditions in the periods presented.

	Stock Option Plan
	Nine Months Ended
	September 30,
	2017			2016
Stock Option Plan
Expected stock price volatility	32		%	36		%
Risk free interest rate	1.8% - 1.9%			1.7		%
Expected term (in years)	5.3 - 5.4			6.1
Weighted-average fair value of stock options granted to employees	$	4.12		$	4.66

There were no stock options granted during the three months ended September 30, 2017 and 2016.

	Employee Stock Purchase Plan
	Nine Months Ended
	September 30,
	2017			2016
Employee Stock Purchase Plan
Expected stock price volatility	27		%	33		%
Risk free interest rate	0.98		%	0.41		%
Expected term (in years)	0.5			0.5
Weighted-average fair value of purchase rights granted under the purchase plan	$	2.87		$	2.86

Nonvested Equity Stock and Stock Units

The Company grants nonvested equity stock units to officers, employees and directors. During the three and nine months ended September 30, 2017, the Company granted nonvested equity stock units totaling 463,346 and 2,654,508 shares under the 2015 Plan. During the three and nine months ended September 30, 2016, the Company granted nonvested equity stock units totaling 884,724 and 2,909,364 shares under the 2015 Plan. These awards have a service condition, generally a service period of four years, except in the case of grants to directors, for which the service period is 1 year. For the three and nine months ended September 30, 2017, the nonvested equity stock units were valued at the date of grant giving them a fair value of approximately $6.0 million and $34.1 million. For the three and nine months ended September 30, 2016, the nonvested equity stock units were valued at the date of grant giving them a fair value of approximately $12.6 million and $37.6 million. During the first quarters of 2017 and 2016, the Company granted performance unit awards to certain Company executive officers with vesting subject to the achievement of certain performance conditions. The ultimate number of performance units that can be earned can range from 0% to 150% of target depending on performance relative to target over the applicable period. The shares earned will vest on the third anniversary of the date of grant. The Company's shares available for grant have been reduced to reflect the shares that could be earned at 150% of target.

During the third quarter of 2017, the Company granted performance unit awards to a Company executive officer with vesting subject to the achievement of certain performance and market conditions. The ultimate number of performance units that can be earned can range from 0% to 150% of target depending on performance relative to target over the applicable period. The shares that will become eligible to vest will be measured over a three-year period ending on December 31, 2019, unless the performance period is shortened because of a change of control of the Company or a termination of the executive officer’s employment without cause. The Company's shares available for grant have been reduced to reflect the shares that could be earned at 150% of target. The fair value of the market condition of these performance units was calculated, on its respective grant date, using a binomial valuation model, which estimates the potential outcome of reaching the market condition based on simulated future stock prices. The stock-based compensation expense related to these awards will be recorded over the respective requisite service period of approximately 2.4 years. During the three months ended September 30, 2017, the achievement of the performance condition for these performance units was considered probable, and as a result, the Company recognized an immaterial amount of stock-based compensation expense related to these performance unit awards.

During the three and nine months ended September 30, 2017, the Company recorded $1.2 million and $3.1 million, respectively, of stock-based compensation expense related to all outstanding nonvested performance unit awards. During the

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three and nine months ended September 30, 2016, the Company recorded $0.7 million and $2.0 million, respectively, of stock-based compensation expense related to all outstanding nonvested performance unit awards.

For the three and nine months ended September 30, 2017, the Company recorded stock-based compensation expense of approximately $5.9 million and $16.7 million related to all outstanding nonvested equity stock grants. For the three and nine months ended September 30, 2016, the Company recorded stock-based compensation expense of approximately $4.1 million and $10.9 million related to all outstanding nonvested equity stock grants. Unrecognized stock-based compensation related to all nonvested equity stock grants, net of estimated forfeitures, was approximately $46.4 million at September 30, 2017. This amount is expected to be recognized over a weighted average period of 2.5 years.

The following table reflects the activity related to nonvested equity stock and stock units for the nine months ended September 30, 2017:

Nonvested Equity Stock and Stock Units	Shares		Weighted- Average Grant-Date Fair Value
Nonvested at December 31, 2016	4,863,056		$	12.33
Granted	2,654,508		$	12.84
Vested	(835,776	)	$	12.23
Forfeited	(636,732	)	$	12.51
Nonvested at September 30, 2017	6,045,056		$	12.55

11.Stockholders’ Equity

Share Repurchase Program

During the nine months ended September 30, 2017, the Company repurchased shares of its common stock under its share repurchase program as discussed below.

On January 21, 2015, the Company's Board approved a share repurchase program authorizing the repurchase of up to an aggregate of 20.0 million shares. Share repurchases under the plan may be made through the open market, established plans or privately negotiated transactions in accordance with all applicable securities laws, rules, and regulations. There is no expiration date applicable to the plan.

On May 1, 2017, the Company initiated an accelerated share repurchase program with Barclays Bank PLC. The accelerated share repurchase program is part of the broader share repurchase program previously authorized by the Company's Board on January 21, 2015. Under the accelerated share repurchase program, the Company pre-paid to Barclays Bank PLC, the $50.0 million purchase price for its common stock and, in turn, the Company received an initial delivery of approximately 3.2 million shares of its common stock from Barclays Bank PLC, in the second quarter of 2017, which were retired and recorded as a $40.0 million reduction to stockholders' equity. The remaining $10.0 million of the initial payment was recorded as a reduction to stockholders’ equity as an unsettled forward contract indexed to the Company's stock. The number of shares to be ultimately purchased by the Company will be determined based on the volume weighted average price of the common stock during the terms of the transaction, minus an agreed upon discount between the parties. The program is expected to be completed by November 2017.

As of September 30, 2017, there remained an outstanding authorization to repurchase approximately 8.3 million shares of the Company's outstanding common stock under the current share repurchase program.

The Company records stock repurchases as a reduction to stockholders’ equity. The Company records a portion of the purchase price of the repurchased shares as an increase to accumulated deficit when the price of the shares repurchased exceeds the average original proceeds per share received from the issuance of common stock. During the nine months ended September 30, 2017, the cumulative price of $29.4 million was recorded as an increase to accumulated deficit.

12. Income Taxes

The Company recorded a provision for income taxes of $6.2 million and $4.3 million for the three months ended September 30, 2017 and 2016, respectively, and $16.1 million and $14.9 million for the nine months ended September 30, 2017 and 2016, respectively. The income taxes for the three and nine months ended September 30, 2017 is primarily comprised of

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the Company's U.S. federal, state and foreign taxes and income tax expense recognized from exercises and expiration of out-of-the-money fully vested shares from equity incentive plans. Similarly, the income taxes for the three and nine months ended September 30, 2016 was primarily comprised of the Company's U.S. federal, state and foreign taxes and income tax expense recognized from exercises and expiration of shares from equity incentive plans.

During the three and nine months ended September 30, 2017, the Company paid withholding taxes of $4.7 million and $15.6 million, respectively. During the three and nine months ended September 30, 2016, the Company paid withholding taxes of $5.5 million and $16.5 million, respectively.

As of September 30, 2017, the Company’s unaudited condensed consolidated balance sheets included net deferred tax assets, before valuation allowance, of approximately $225.0 million, which consists of net operating loss carryovers, tax credit carryovers, amortization, employee stock-based compensation expenses and certain liabilities, partially reduced by deferred tax liabilities associated with the convertible notes.

The Company has U.S. federal deferred tax assets related to research and development credits, foreign tax credits and other tax attributes that can be used to offset federal taxable income in future periods. These credit carryforwards will expire if they are not used within certain time periods. As of September 30, 2017, the Company determined that there is sufficient positive evidence to conclude that it is more likely than not sufficient taxable income will exist in the future allowing the Company to recognize these deferred tax assets. It is possible that some or all these attributes could ultimately expire unused. If facts and circumstances change in the future, the Company may determine at that time a valuation allowance is necessary. A valuation allowance would materially increase the Company's tax expense in the period applied and would adversely affect its results of operations and statements of financial condition. Changes in the Company's underlying facts or circumstances, such as the impact of the acquisitions, will be continually assessed and the Company will re-evaluate its position accordingly.

As of September 30, 2017, the Company continues to maintain a valuation allowance against the majority of its state deferred tax assets. Management periodically evaluates the realizability of the Company's net deferred tax assets based on all available evidence, both positive and negative. The realizability of the Company's net deferred tax assets is dependent on its ability to generate sufficient future taxable income during periods prior to the expiration of tax attributes to fully utilize these assets. The Company continues to maintain a deferred tax asset valuation allowance of $29.0 million as of September 30, 2017.

The Company maintains liabilities for uncertain tax positions within its long-term income taxes payable accounts and as a reduction to existing deferred tax assets to the extent tax attributes are available to offset such liabilities. These liabilities involve judgment and estimation and are monitored by management based on the best information available including changes in tax regulations, the outcome of relevant court cases and other information.

As of September 30, 2017, the Company had approximately $22.9 million of unrecognized tax benefits, including $20.7 million recorded as a reduction of long-term deferred tax assets and $2.2 million in long-term income taxes payable. If recognized, approximately $2.2 million would be recorded as an income tax benefit. As of December 31, 2016, the Company had $21.9 million of unrecognized tax benefits, including $19.7 million recorded as a reduction of long-term deferred tax assets and $2.2 million recorded in long-term income taxes payable.

Although it is possible that some of the unrecognized tax benefits could be settled within the next 12 months, the Company cannot reasonably estimate the outcome at this time.

The Company recognizes interest and penalties related to uncertain tax positions as a component of the income tax provision. At September 30, 2017 and December 31, 2016, an immaterial amount of interest and penalties is included in long-term income taxes payable.

Rambus files income tax returns for the U.S., California, India, the U.K., the Netherlands and various other state and foreign jurisdictions. The U.S. federal returns are subject to examination from 2014 and forward. The California returns are subject to examination from 2010 and forward. In addition, any research and development credit carryforward or net operating loss carryforward generated in prior years and utilized in these or future years may also be subject to examination. The India returns are subject to examination from fiscal year ending March 2012 and forward. The Company is currently under examination by California for the 2010 and 2011 tax years and New York for the 2013, 2014 and 2015 tax years. The Company’s India subsidiary is under examination by the Indian tax administration for tax years beginning with 2011, except for 2014, which was assessed in the Company's favor. These examinations may result in proposed adjustments to the income taxes as filed during these periods. Management regularly assesses the likelihood of outcomes resulting from income tax examinations to determine the adequacy of their provision for income taxes and believes their provision for unrecognized tax benefits is adequate.

Additionally, the Company's future effective tax rates could be adversely affected by earnings being higher than anticipated in countries where the Company has higher statutory rates or lower than anticipated in countries where it has lower statutory rates, by changes in valuation of its deferred tax assets and liabilities or by changes in tax laws or interpretations of those laws.

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13. Litigation and Asserted Claims

Rambus is not currently a party to any material pending legal proceeding; however, from time to time, Rambus may become involved in legal proceedings or be subject to claims arising in the ordinary course of its business. Although the results of litigation and claims cannot be predicted with certainty, the Company currently believes that the final outcome of these ordinary course matters will not have a material adverse effect on our business, operating results, financial position or cash flows. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors.

The Company records a contingent liability when it is probable that a loss has been incurred and the amount is reasonably estimable in accordance with accounting for contingencies.

Item 2. Management’s Discussion and Analysis of Financial Condition and Resultsof Operations

This report contains forward-looking statements within the meaning of Section 27Aof the Securities Act of 1933 and Section 21E of the Securities Exchange Act of1934 as described in more detail under “Note Regarding Forward-Looking Statements." Our forward-lookingstatements are based on current expectations, forecasts and assumptions and aresubject to risks, uncertainties and changes in condition, significance, value andeffect. As a result of the factors described herein, and in the documentsincorporated herein by reference, including, in particular, those factors describedunder “Risk Factors,” we undertake no obligation to publicly disclose any revisionsto these forward-looking statements to reflect events or circumstances occurringsubsequent to filing this report with the Securities and Exchange Commission.

Rambus, CryptoFirewall^TM, CryptoMedia^TM and CryptoManager^TM are trademarks or registered trademarks of Rambus Inc. Other trademarks that may be mentioned in this quarterly report on Form 10-Q are the property of their respective owners.

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Executive Summary

During the third quarter of 2017, we announced the industry’s first silicon-proven server DIMM buffer chipset capable of achieving the speeds expected for next-generation DDR5. Additionally, we teamed up with eftpos domestic debit card network in Australia to support the roll out of Apple Pay with tokenization software. Key 2017 third quarter financial results included:

• Revenue of $99.1 million;

• Total Operating Costs and Expenses of $82.1 million;

• Diluted net income per share of $0.07; and

• Cash flows provided by operating activities of approximately $15 million.

Business Overview

Rambus creates innovative hardware and software technologies, driving advancements from the data center to the mobile edge. Our chips, customizable IP cores, patent licenses, software, services, and other innovations improve the competitive advantage of our customers. We collaborate with the industry, partnering with leading ASIC and SoC designers, foundries, IP developers, processor companies, EDA companies and validation labs. Our innovations are integrated into a wide range of devices and systems, powering and securing diverse applications, including Big Data, Internet of Things, mobile, consumer and media platforms.

While we have historically focused our efforts on the development of technologies for memory, SerDes and other chip interfaces, we have expanded our portfolio of inventions and solutions to address chip and system security, mobile payments and smart ticketing. We intend to continue our growth into new technology fields, consistent with our mission to create value through our innovations and to make those technologies available through the shipment of products, the provisioning of services, as well as our licensing business models. Key to our efforts continues to be hiring and retaining world-class inventors, scientists and engineers to lead the development and deployment of inventions and technology solutions for our fields of focus.

Our strategy is to continue to augment our patent license business model to provide additional technology, products and services while creating and leveraging strategic synergies to increase revenue. In support of our strategy, we acquired four businesses in 2016 in the fields of mobile payments, smart ticketing, memory buffer chips and SerDes IP cores. On January 25, 2016, our Security division completed the acquisition of Smart Card Software, Ltd. (“SCS”), a privately-held company incorporated in the United Kingdom, for a pound sterling equivalent of $104.7 million in cash. Through this purchase we acquired two complementary businesses: Bell Identification Ltd., a leader in mobile payments, and Ecebs Ltd., a leading supplier of smart ticketing systems. We believe these businesses complement our security division by allowing us to extend our foundational security technology to offer differentiated, value-added security solutions to our customers.

On August 4, 2016, our Memory and Interfaces division completed the acquisition of all the assets of Inphi’s Memory Interconnect Business for $90 million in cash. The acquisition included product inventory, customer contracts, supply chain agreements and intellectual property. On August 5, 2016, our Memory and Interfaces division completed the acquisition of the assets of Semtech Corporation’s Snowbush IP group for $32 million in cash. Snowbush IP, formerly part of Semtech’s Systems Innovation Group, is a provider of silicon-proven, high-performance serial link solutions. We believe these acquisitions strengthen our market position for memory buffer chip products and bolster our SerDes and IP offerings enabling us to better address the needs of the server, networking and data center market.

Organization

We have organized the business into four operational units: (1) Memory and Interfaces, or MID, which focuses on the design, development, manufacturing through partnerships and licensing of technology and solutions that is related to memory and interfaces; (2) Security, or RSD, which focuses on the design, development, deployment and licensing of technologies for chip, system and in-field application security, anti-counterfeiting, smart ticketing and mobile payments; (3) Emerging Solutions, or ESD, which encompasses our long-term research and development efforts in the area of emerging technologies; and (4) Lighting, or RLD, which focuses on the design, development and licensing of technologies for advanced LED-based lighting solutions. As of September 30, 2017, MID and RSD met quantitative thresholds for disclosure as reportable segments. Results for ESD and RLD are shown under “Other.” For additional information concerning segment reporting, see Note 5, “Segments and Major Customers,” of Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q.

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Revenue Sources

Our inventions and technology solutions are offered to our customers through patent, technology, software and IP core licenses, as well as product sales and services. Today, our primary source of revenue is derived from patent licenses, through which we provide our customers a license to use a certain portion of our broad portfolio of patented inventions. The license provides our customers with a defined right to use our innovations in the customer’s own digital electronics products, systems or services, as applicable. The licenses may also define the specific field of use where our customers may use or employ our inventions in their products. License agreements are structured with fixed, variable or a hybrid of fixed and variable royalty payments over certain defined periods ranging for periods of up to ten years. Leading consumer product, industrial, semiconductor and system companies such as AMD, Broadcom, Cisco, Freescale, Fujitsu, GE, IBM, Intel, LSI, Micron, Nanya, NVIDIA, Panasonic, Qualcomm, Renesas, Samsung, SK hynix, STMicroelectronics, Toshiba and Xilinx have licensed our patents. The vast majority of our patents were secured through our internal research and development efforts across all of our business units. Royalties from patent licenses accounted for 68% and 67% of our consolidated revenue for the three and nine months ended September 30, 2017, respectively, as compared to 70% and 76% for the three and nine months ended September 30, 2016, respectively.

We also offer our customers technology licenses to support the implementation and adoption of our technology in their products or services. Our customers include leading companies such as Eaton, GE, IBM, Panasonic, Qualcomm, Samsung, Sony and Toshiba. Our technology license offerings include a range of technologies for incorporation into our customers’ products and systems. We also offer a range of services as part of our technology licenses which can include know-how and technology transfer, product design and development, system integration, and other services. These technology license agreements may have both a fixed price (non-recurring) component and ongoing use fees and in some cases, royalties. Further, under technology licenses, our customers typically receive licenses to our patents necessary to implement these solutions in their products with specific rights and restrictions to the applicable patents elaborated in their individual contracts with us. Royalties from technology licenses accounted for 6% of our consolidated revenue for both the three and nine months ended September 30, 2017, as well as for the three and nine months ended September 30, 2016.

The remainder of our revenue is product revenue, contract services and other revenue, which includes our product sales, IP core licenses, software licenses and related implementation, support and maintenance fees, and engineering services fees. The timing and amounts invoiced to customers can vary significantly depending on specific contract terms and can therefore have a significant impact on deferred revenue or account receivables in any given period. Product revenue accounted for 9% and 10% of our consolidated revenue for the three and nine months ended September 30, 2017, respectively, as compared to 8% and 6% for the three and nine months ended September 30, 2016, respectively. Contract and other revenue accounted for 18% of our consolidated revenue for both the three and nine months ended September 30, 2017, as compared to 16% and 13% for the three and nine months ended September 30, 2016, respectively. As we continue to execute on our strategy to augment our traditional patent licensing business model to provide additional technology, products and services, product revenue and related cost of product revenue were reclassified from contract and other revenue and cost of contract and other revenue, respectively, during the second quarter of 2017. Refer to the Unaudited Condensed Consolidated Statements of Operations of this Form 10-Q.

Expenses

Cost of product revenue for the three months ended September 30, 2017 decreased approximately $1.8 million to $5.2 million from $7.0 million for the same period in 2016 primarily due to the absence of the $1.2 million related to the purchase accounting adjustment for inventory fair value step-up from the acquisition of the Memory Interconnect Business in the third quarter of 2016. Cost of product revenue for the nine months ended September 30, 2017 increased approximately $5.3 million to $17.9 million from $12.6 million for the same period in 2016 primarily due to increased cost of sales associated with higher sales of memory and security products as we transition from legacy to new product lines.

Engineering expenses continue to play a key role in our efforts to maintain product innovations. Our engineering expenses for the three months ended September 30, 2017 increased $4.5 million as compared to the same period in 2016 primarily due to increased prototyping costs of $1.9 million, increased expenses related to software design tools of $1.5 million, increased amortization costs of $0.7 million, increased stock-based compensation expense of $0.6 million and increased headcount related expenses of $0.5 million, offset by decreased bonus accrual expense of $0.7 million, decreased consulting expenses of $0.5 million and decreased depreciation expense of $0.5 million. Engineering expenses for the nine months ended September 30, 2017 increased $28.8 million as compared to the same period in 2016 primarily due to increased headcount related expenses of $8.9 million, increased amortization costs of $5.5 million, increased expenses related to software design tools of $5.1 million, increased stock-based compensation expense of $2.5 million, increased prototyping costs of $2.4 million, increased consulting costs of $0.9 million, increased travel costs of $0.6 million and increased bonus accrual expense of $0.5 million.

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Sales, general and administrative expenses for the three months ended September 30, 2017 increased $2.0 million as compared to the same period in 2016 primarily due to increased headcount related expenses of $1.0 million, increased stock-based compensation expense of $0.9 million, increased bonus accrual expense of $0.8 million, increased depreciation expense of $0.3 million and increased sales and marketing expenses of $0.2 million, offset by decreased accounting and audit costs of $0.4 million, decreased acquisition related costs of $0.4 million and decreased consulting costs of $0.3 million. Sales, general and administrative expenses for the nine months ended September 30, 2017 increased $12.4 million as compared to the same period in 2016 primarily due to the business acquisitions during 2016. This includes increased headcount related expenses of $3.9 million, increased bonus accrual expense of $3.1 million, increased consulting costs of $2.9 million, increased stock-based compensation expense of $2.3 million, increased sales and marketing expenses of $2.0 million and increased travel costs of $1.0 million, offset by decreased acquisition related costs of $3.0 million.

Intellectual Property

As of September 30, 2017, our semiconductor, lighting, security and other technologies are covered by 2,088 U.S. and foreign patents. Additionally, we have 589 patent applications pending. Some of the patents and pending patent applications are derived from a common parent patent application or are foreign counterpart patent applications. We have a program to file applications for and obtain patents in the United States and in selected foreign countries where we believe filing for such protection is appropriate and would further our overall business strategy and objectives. In some instances, obtaining appropriate levels of protection may involve prosecuting continuation and counterpart patent applications based on a common parent application. We believe our patented innovations provide our customers with the ability to achieve improved performance, lower risk, greater cost-effectiveness and other benefits in their products and services.

Trends

There are a number of trends that may have a material impact on us in the future, including but not limited to, the evolution of memory and SerDes technology, adoption of mobile payment, smart ticketing and security solutions, adoption of LEDs in edge-lit general lighting, the use and adoption of our inventions or technologies generally, industry consolidation, and global economic conditions with the resulting impact on sales of consumer electronic systems.

We have a high degree of revenue concentration. Our top five customers for each reporting period represented approximately 57% and 56% of our revenue for the three and nine months ended September 30, 2017, respectively, as compared to 59% and 65% for the three and nine months ended September 30, 2016, respectively. For the three and nine months ended September 30, 2017, and for the three and nine months ended September 30, 2016, revenue from Micron, Samsung and SK hynix each accounted for 10% or more of our total revenue. While we expect Samsung, SK hynix and Micron to account for a significant portion of our ongoing licensing revenue, the particular customers which account for revenue concentration have varied from period-to-period as a result of the addition of new contracts, expiration of existing contracts, renewals of existing contracts, industry consolidation and the volumes and prices at which the customers have recently sold to their customers. These variations are expected to continue in the foreseeable future.

Our revenue from companies headquartered outside of the United States accounted for approximately 56% and 58% of our total revenue for the three and nine months ended September 30, 2017, respectively, as compared to 63% and 65% for the three and nine months ended September 30, 2016. We expect that revenue derived from international customers will continue to represent a significant portion of our total revenue in the future. To date, the majority of the revenue from international customers has been denominated in U.S. dollars. However, to the extent that such customers’ sales to their customers are not denominated in U.S. dollars, any revenue that we receive as a result of such sales could be subject to fluctuations in currency exchange rates. In addition, if the effective price of licensed products sold by our foreign customers were to increase as a result of fluctuations in the exchange rate of the relevant currencies, demand for licensed products could fall, which in turn would reduce our revenue. We do not use financial instruments to hedge foreign exchange rate risk. For additional information concerning international revenue, see Note 5, “Segments and Major Customers,” of Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q.

Our licensing cycle for new licensees as well as renewals for existing licensees is lengthy, costly and unpredictable without any degree of certainty. We may incur costs in any particular period before any associated revenue stream begins, if at all. Our lengthy license negotiation cycles could make our future revenue difficult to predict because we may not be successful in entering into licenses with our customers in the amounts projected, or on our anticipated timelines.

The semiconductor industry is intensely competitive and highly cyclical, limiting our visibility with respect to future sales. To the extent that macroeconomic fluctuations negatively affect our principal customers, the demand for our products and

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technology may be significantly and adversely impacted and we may experience substantial period-to-period fluctuations in our operating results.

The royalties we receive from our semiconductor customers are partly a function of the adoption of our technologies by system companies. Many system companies purchase semiconductors containing our technologies from our customers and do not have a direct contractual relationship with us. Our customers generally do not provide us with details as to the identity or volume of licensed semiconductors purchased by particular system companies. As a result, we face difficulty in analyzing the extent to which our future revenue will be dependent upon particular system companies.

Global demand for effective security technologies continues to increase. In particular, highly integrated devices such as smart phones are increasingly used for applications requiring security such as mobile payments, corporate information and user data. Our RSD operating segment is primarily focused on positioning its DPA countermeasures, CryptoMedia™, CryptoFirewall™ and CryptoManager™ technology solutions, and the introduction of in-field applications mobile payments and smart ticketing solutions to our offerings to capitalize on these trends and growing adoption among technology partners and customers.

Engineering costs as well as sales, general and administrative expenses in the aggregate increased and cost of product revenue in the aggregate decreased in the third quarter of 2017 as compared to the same period in 2016. Cost of product revenue, engineering costs as well as sales, general and administrative expenses as a percentage of revenue decreased during the nine months ended September 30, 2017 as compared to the same period in 2016. Cost of product revenue, engineering costs as well as sales, general and administrative expenses in the aggregate increased during the nine months ended September 30, 2017 as compared to the same period in 2016. Cost of product revenue and engineering costs as a percentage of revenue increased and sales, general and administrative expenses as a percentage of revenue decreased during the nine months ended September 30, 2017 as compared to the same period in 2016. In the near term, we expect these costs in the aggregate to be higher as we intend to continue to make investments in the infrastructure and technologies required to increase our product innovation in semiconductor, security, mobile payments, smart cards and other technologies. In addition, while we have not been involved in material litigation since 2014, to the extent litigation is again necessary, our expectations on the amount and timing of any future general and administrative costs are uncertain.

As a part of our overall business strategy, from time to time, we evaluate businesses and technologies for potential acquisition that are aligned with our core business and designed to supplement our growth, including the acquisitions of SCS, the assets of the Snowbush IP group and the Memory Interconnect Business. Similarly, we evaluate our current businesses and technologies that are not aligned with our core business for potential divestiture.

In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“Standard”). The Standard, as amended, is effective for us on January 1, 2018. We have yet to make a final decision regarding the adoption method we will use, but we believe we will adopt the Standard on a full retrospective basis, with a cumulative-effect adjustment to the opening balance of retained earnings on January 1, 2016 determined on the basis of the impact of the Standard on the accounting for contracts that are not completed as of that date. Although we have yet to finalize our evaluation and quantification of the effects that the Standard will have on our consolidated financial statements, and to finalize the design and implementation of related changes to our policies, procedures and controls, we expect the Standard to materially impact the timing of revenue recognition for our fixed-fee intellectual property (IP) licensing arrangements (including certain fixed-fee agreements that license our existing IP portfolio as well as IP added to our portfolio during the license term) as a majority of such revenue would be recognized at inception of the license term, as opposed to over time as is the case under current U.S. GAAP, and we will be required to compute and recognize interest income over time as control over the IP generally transfers significantly in advance of cash being received from customers. We are also evaluating the form and content of any guidance that we may provide following implementation of the Standard and expect our guidance metrics to change. We expect that any change to current revenue recognition practices may significantly increase volatility in our quarterly revenue trends.

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Results of Operations

The following table sets forth, for the periods indicated, the percentage of total revenue represented by certain items reflected in our unaudited condensed consolidated statements of operations:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Revenue:
Royalties	73.4	%	76.0	%	72.7	%	81.2	%
Product revenue	8.7	%	7.9	%	9.6	%	6.0	%
Contract and other revenue	17.9	%	16.1	%	17.7	%	12.8	%
Total revenue	100.0	%	100.0	%	100.0	%	100.0	%
Operating costs and expenses:
Cost of product revenue*	5.2	%	7.8	%	6.1	%	5.2	%
Cost of contract and other revenue	14.6	%	13.8	%	14.9	%	13.9	%
Research and development*	36.5	%	37.7	%	37.7	%	38.1	%
Sales, general and administrative*	27.0	%	27.6	%	28.2	%	29.1	%
Gain from sale of intellectual property	(0.5	)%	—	%	(0.2	)%	—	%
Gain from settlement	—	%	—	%	—	%	(0.2	)%
Total operating costs and expenses	82.8	%	86.9	%	86.7	%	86.1	%
Operating income	17.2	%	13.1	%	13.3	%	13.9	%
Interest income and other income (expense), net	0.2	%	0.2	%	0.2	%	0.6	%
Interest expense	(3.3	)%	(3.6	)%	(3.4	)%	(4.0	)%
Interest and other income (expense), net	(3.1	)%	(3.4	)%	(3.2	)%	(3.4	)%
Income before income taxes	14.1	%	9.7	%	10.1	%	10.5	%
Provision for income taxes	6.3	%	4.7	%	5.5	%	6.2	%
Net income	7.8	%	5.0	%	4.6	%	4.3	%

_________________________________________

*Includes stock-based compensation:

Cost of product revenue	0.0	%	0.0	%	0.0	%	0.0	%
Research and development	3.0	%	2.6	%	3.1	%	2.7	%
Sales, general and administrative	4.0	%	3.4	%	3.8	%	3.7	%

	Three Months						Nine Months
	Ended September 30,				Change in		Ended September 30,				Change in
(Dollars in millions)	2017		2016		Percentage		2017		2016		Percentage
Total Revenue
Royalties	$	72.8	$	68.3	6.6	%	$	211.7	$	194.0	9.1	%
Product revenue	8.6		7.1		22.1	%	28.0		14.3		95.5	%
Contract and other revenue	17.7		14.5		22.3	%	51.5		30.7		67.7	%
Total revenue	$	99.1	$	89.9	10.3	%	$	291.2	$	239.0	21.8	%

Royalty Revenue

Patent Licenses

Our patent royalties increased approximately $3.9 million to $67.2 million for the three months ended September 30, 2017 from $63.3 million for the same period in 2016. The increase was due to higher royalty revenue from a renewed license agreement with STMicroelectronics, Western Digital and various other customers, offset by lower royalty revenue from Broadcom, SK hynix, Xilinx, and various other customers.

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Our patent royalties increased approximately $14.0 million to $194.5 million for the nine months ended September 30, 2017 from $180.5 million for the same period in 2016. The increase was due to higher royalty revenue from NVIDIA, a renewed license agreement with STMicroelectronics, Western Digital, Winbond Electronics, and various other customers, offset by lower royalty revenue from AMD, Broadcom, SK hynix, Xilinx, and various other customers.

We are continuously in negotiations for licenses with prospective customers. We expect patent royalties will continue to vary from period to period based on our success in adding new customers, renewing or extending existing agreements, as well as the level of variation in our customers' reported shipment volumes, sales price and mix, offset in part by the proportion of customer payments that are fixed or hybrid in nature.

Technology Licenses

Royalties from technology licenses increased approximately $0.6 million to $5.6 million for the three months ended September 30, 2017 from $5.0 million for the same period in 2016. The increase was due to higher royalties from various customers, offset by lower royalties from Eaton.

Royalties from technology licenses increased approximately $3.7 million to $17.2 million for the nine months ended September 30, 2017 from $13.5 million for the same period in 2016. The increase was primarily due to higher royalties from GLOBALFOUNDRIES and various other customers, offset by lower royalties from Eaton.

In the future, we expect technology royalties will continue to vary from period to period based on our customers’ shipment volumes, sales prices, and product mix.

Royalty Revenue by Reportable Segments

Royalty revenue from the MID reportable segment, which includes patent and technology license royalties, increased approximately $2.0 million to $56.6 million for the three months ended September 30, 2017 from $54.6 million for the same period in 2016. The increase was due to higher royalty revenue from a renewed license agreement with STMicroelectronics and various other customers, offset by lower royalty revenue from Broadcom, SK hynix, Xilinx, and various other customers.

Royalty revenue from the MID reportable segment increased approximately $10.2 million to $168.1 million for the nine months ended September 30, 2017 from $157.9 million for the same period in 2016. The increase was due to higher royalty revenue from a renewed license agreement with STMicroelectronics, Western Digital, Winbond Electronics, and various other customers, offset by lower royalty revenue from AMD, Broadcom, SK hynix, Xilinx, and various other customers.

Royalty revenue from the RSD reportable segment, which includes patent and technology license royalties, increased approximately $2.9 million to $15.5 million for the three months ended September 30, 2017 from $12.6 million for the same period in 2016. The increase was primarily due to higher royalty revenue from NVIDIA and various other customers, offset by lower royalty revenue from Xilinx.

Royalty revenue from the RSD reportable segment increased approximately $9.1 million to $42.3 million for the nine months ended September 30, 2017 from $33.2 million for the same period in 2016. The increase was primarily due to higher royalty revenue from NVIDIA, Western Digital and various other customers, offset by lower royalty revenue from Xilinx.

Royalty revenue from the Other segment was immaterial for both the three months ended September 30, 2017 and 2016, and decreased period over period due to decreased royalties from technology licenses associated with lower shipments of lighting products.

Royalty revenue from the Other segment decreased approximately $1.6 million to $1.3 million for the nine months ended September 30, 2017 from $2.9 million for the same period in 2016. The decrease is due to lower royalties from technology licenses associated with lower shipments of lighting products.

Product Revenue

Product revenue consists of revenue from the sale of memory, security and lighting products. Product revenue increased approximately $1.5 million to $8.6 million for the three months ended September 30, 2017 from $7.1 million for the same period in 2016. The increase was primarily due to higher sales of memory products from the Memory Interconnect Business acquisition in the third quarter of 2016.

Product revenue increased approximately $13.7 million to $28.0 million for the nine months ended September 30, 2017 from $14.3 million for the same period in 2016. The increase was primarily due to sales of security products to Qualcomm and memory products from the Memory Interconnect Business.

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We believe that product revenue will continue to increase in 2017. Our ability to continue to grow product revenue is dependent on, among other things, our ability to continue to obtain orders from customers and our ability to meet our customers' demands.

Product Revenue by Reportable Segments

Product revenue from the MID reportable segment increased approximately $0.9 million to $5.1 million for the three months ended September 30, 2017 from $4.2 million for the same period in 2016, due to higher sales of memory products from the Memory Interconnect Business acquisition.

Product revenue from the MID reportable segment increased approximately $10.9 million to $15.1 million for the nine months ended September 30, 2017 from $4.2 million for the same period in 2016, due to higher sales of memory products from the Memory Interconnect Business acquisition.

Product revenue from the RSD reportable segment was immaterial for both the three months ended September 30, 2017 and 2016, and increased period over period due to higher sales of security products.

Product revenue from the RSD reportable segment increased approximately $1.8 million to $5.0 million for the nine months ended September 30, 2017 from $3.2 million for the same period in 2016, primarily due to higher revenue from Qualcomm, offset by lower sales to various other customers.

Product revenue from the Other segment increased approximately $0.3 million to $2.7 million for the three months ended September 30, 2017 from $2.4 million for the same period in 2016, due to higher sales of light guide products.

Product revenue from the Other segment increased approximately $0.9 million to $7.8 million for the nine months ended September 30, 2017 from $6.9 million for the same period in 2016. The increase was primarily due to higher sales of light guide products.

Contract and Other Revenue

Contract and other revenue consist of revenue from technology development projects. Contract and other revenue increased approximately $3.2 million to $17.7 million for the three months ended September 30, 2017 from $14.5 million for the same period in 2016. The increase was primarily due to increased memory and security technology development projects, including revenue from the acquisitions during 2016.

Contract and other revenue increased approximately $20.8 million to $51.5 million for the nine months ended September 30, 2017 from $30.7 million for the same period in 2016. The increase was primarily due to increased memory and security technology development projects, including revenue from the acquisitions during 2016, offset by decreased revenue from lighting technology development projects.

We believe that contract and other revenue will fluctuate over time based on our ongoing technology development contractual requirements, the amount of work performed, the timing of completing engineering deliverables, and the changes to work required, as well as new technology development contracts booked in the future.

Contract and Other Revenue by Reportable Segments

Contract and other revenue from the MID reportable segment increased approximately $2.7 million to $7.0 million for the three months ended September 30, 2017 from $4.3 million for the same period in 2016, primarily due to higher revenue from Samsung and other memory technology projects, including revenue from the acquisitions in 2016, offset by lower revenue from GLOBALFOUNDRIES.

Contract and other revenue from the MID reportable segment increased $14.4 million to $23.5 million for the nine months ended September 30, 2017 from $9.1 million for the same period in 2016, primarily due to higher revenue from GLOBALFOUNDRIES, Samsung and other memory technology projects, including revenue from the acquisitions in 2016.

Contract and other revenue from the RSD reportable segment increased approximately $0.5 million to $9.9 million for the three months ended September 30, 2017 from $9.4 million for the same period in 2016, primarily due to higher revenue from Renesas and various other security technology development projects, including revenue from the acquisitions in 2016.

Contract and other revenue from the RSD reportable segment increased approximately $9.0 million to $25.5 million for the nine months ended September 30, 2017 from $16.5 million for the same period in 2016, primarily due to higher revenue from Renesas and other security technology development projects, including revenue from the acquisitions in 2016.

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Contract and other revenue from the Other segment was immaterial for both the three months ended September 30, 2017 and 2016, and remained flat period over period.

Contract and other revenue from the Other segment decreased approximately $2.6 million to $2.4 million for the nine months ended September 30, 2017 from $5.0 million for the same period in 2016. The decrease was primarily due to decreased revenue from lighting technology development projects.

Cost of product revenue:

	Three Months Ended						Nine Months Ended
	September 30,				Change in		September 30,				Change in
(Dollars in millions)	2017		2016		Percentage		2017		2016		Percentage
Cost of product revenue	$	5.2	$	7.0	(26.7	)%	$	17.9	$	12.6	42.1	%

Cost of product revenue decreased approximately $1.8 million to $5.2 million for the three months ended September 30, 2017 from $7.0 million for the same period in 2016 primarily due to the absence of the $1.2 million related to the purchase accounting adjustment for inventory fair value step-up from the acquisition of the Memory Interconnect Business in the third quarter of 2016.

Cost of product revenue increased approximately $5.3 million to $17.9 million for the nine months ended September 30, 2017 from $12.6 million for the same period in 2016 primarily due to increased cost of sales associated with higher sales of memory products related to the Memory Interconnect Business acquisition in 2016.

In the near term, we expect costs of product revenue to be higher as we expect higher sales of our various products in 2017 as compared to 2016.

Engineering costs:

	Three Months Ended						Nine Months Ended
	September 30,				Change in		September 30,				Change in
(Dollars in millions)	2017		2016		Percentage		2017		2016		Percentage
Engineering costs
Cost of contract and other revenue	$	5.7	$	4.3	31.4	%	$	17.0	$	12.3	38.0	%
Amortization of intangible assets	8.8		8.1		8.7	%	26.3		20.8		26.2	%
Stock-based compensation	0.0		0.0		—	%	0.0		0.0		—	%
Total cost of contract and other revenue	14.5		12.4		16.6	%	43.3		33.1		30.6	%
Research and development	33.2		31.5		5.5	%	100.7		84.6		19.0	%
Stock-based compensation	3.0		2.3		27.0	%	9.0		6.5		38.6	%
Total research and development	36.2		33.8		7.0	%	109.7		91.1		20.4	%
Total engineering costs	$	50.7	$	46.2	9.6	%	$	153.0	$	124.2	23.1	%

Total engineering costs increased $4.5 million for the three months ended September 30, 2017 as compared to the same period in 2016 primarily due to increased prototyping costs of $1.9 million, increased expenses related to software design tools of $1.5 million, increased amortization costs of $0.7 million, increased stock-based compensation expense of $0.6 million and increased headcount related expenses of $0.5 million, offset by decreased bonus accrual expense of $0.7 million, decreased consulting expenses of $0.5 million and decreased depreciation expense of $0.5 million.

Total engineering costs increased $28.8 million for the nine months ended September 30, 2017 as compared to the same period in 2016 primarily due to increased headcount related expenses of $8.9 million, increased amortization costs of $5.5 million, increased expenses related to software design tools of $5.1 million, increased stock-based compensation expense of $2.5 million, increased prototyping costs of $2.4 million, increased consulting costs of $0.9 million, increased travel costs of $0.6 million and increased bonus accrual expense of $0.5 million. Most of the increases were primarily due to the business acquisitions during 2016.

In the near term, we expect engineering costs to be higher as we continue to make investments in the infrastructure and technologies required to maintain our product innovation in semiconductor, security and other technologies.

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Sales, general and administrative costs:

	Three Months Ended						Nine Months Ended
	September 30,				Change in		September 30,				Change in
(Dollars in millions)	2017		2016		Percentage		2017		2016		Percentage
Sales, general and administrative costs
Sales, general and administrative costs	$	22.8	$	21.7	5.2	%	$	71.0	$	60.9	16.7	%
Stock-based compensation	4.0		3.1		28.6	%	11.1		8.8		25.9	%
Total sales, general and administrative costs	$	26.8	$	24.8	8.1	%	$	82.1	$	69.7	17.9	%

Total sales, general and administrative costs increased $2.0 million for the three months ended September 30, 2017 as compared to the same period in 2016 primarily due to increased headcount related expenses of $1.0 million, increased stock-based compensation expense of $0.9 million, increased bonus accrual expense of $0.8 million, increased depreciation expense of $0.3 million and increased sales and marketing expenses of $0.2 million, offset by decreased accounting and audit costs of $0.4 million, decreased acquisition related costs of $0.4 million and decreased consulting costs of $0.3 million.

Total sales, general and administrative costs increased $12.4 million for the nine months ended September 30, 2017 as compared to the same period in 2016 primarily due to increased headcount related expenses of $3.9 million, increased bonus accrual expense of $3.1 million, increased consulting costs of $2.9 million, increased stock-based compensation expense of $2.3 million, increased sales and marketing expenses of $2.0 million and increased travel costs of $1.0 million, offset by decreased acquisition related costs of $3.0 million. Most of the increases were primarily due to the business acquisitions during 2016.

In the future, sales, general and administrative costs will vary from period to period based on the trade shows, advertising, legal, acquisition and other sales, marketing and administrative activities undertaken, and the change in sales, marketing and administrative headcount in any given period. In the near term, we expect our sales, general and administrative costs to remain relatively flat.

Gain from sale of intellectual property:

	Three Months Ended						Nine Months Ended
	September 30,				Change in		September 30,				Change in
(Dollars in millions)	2017		2016		Percentage		2017		2016		Percentage
Gain from sale of intellectual property	$	0.5	$	—	100.0	%	$	0.5	$	—	100.0	%

During 2013, we sold portfolios of our patent assets covering display technologies. As part of these transactions, we received an initial upfront payment and expect to receive subsequent payments if and when the purchaser of the patents is successful in licensing that portfolio. During the nine months ended September 30, 2017, we received a payment of $0.5 million from the purchaser of the patents related to this transaction.

Gain from settlement:

	Three Months Ended						Nine Months Ended
	September 30,				Change in		September 30,				Change in
(Dollars in millions)	2017		2016		Percentage		2017		2016		Percentage
Gain from settlement	$	—	$	—	—	%	$	—	$	0.6	(100.0	)%

The settlements with SK hynix and Micron are multiple element arrangements for accounting purposes. For a multiple element arrangement, we are required to determine the fair value of the elements. We considered several factors in determining the accounting fair value of the elements of the settlement with SK hynix and the settlement with Micron which included a third party valuation using an income approach (the “SK hynix Fair Value” and "Micron Fair Value", respectively). The total gain from settlement related to the settlements with SK hynix and Micron was $1.9 million and $3.3 million, respectively. As of the end of the second quarter of 2016, the total gain from settlement related to the settlements with SK hynix and Micron has been

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fully recognized. During the nine months ended September 30, 2016, we recognized $0.6 million as gain from settlement, which represents the portion of the SK hynix Fair Value and Micron Fair Value of the cash consideration allocated to the resolution of the antitrust litigation settlements.

Interest and other income (expense), net:

	Three Months								Nine Months
	Ended September 30,						Change in		Ended September 30,						Change in
(Dollars in millions)	2017			2016			Percentage		2017			2016			Percentage
Interest income and other income (expense), net	$	0.2		$	0.1		46.5	%	$	0.5		$	1.5		(67.7	)%
Interest expense	(3.3		)	(3.2		)	2.9	%	(9.8		)	(9.5		)	2.7	%
Interest and other income (expense), net	$	(3.1	)	$	(3.1	)	0.9	%	$	(9.3	)	$	(8.0	)	16.2	%

Interest income and other income (expense), net, consists primarily of interest income generated from investments in high quality fixed income securities and any gains or losses from the re-measurement of our monetary assets or liabilities denominated in foreign currencies.

Interest expense primarily consists of interest expense associated with our imputed facility lease obligations primarily on the Sunnyvale and Ohio facilities and non-cash interest expense related to the amortization of the debt discount and issuance costs on the 1.125% convertible senior notes due 2018 (the “2018 Notes”) as well as the coupon interest related to the 2018 Notes. We expect our non-cash interest expense to increase steadily as the 2018 Notes reach maturity.

Provision for income taxes:

	Three Months Ended								Nine Months Ended
	September 30,						Change in		September 30,						Change in
(Dollars in millions)	2017			2016			Percentage		2017			2016			Percentage
Provision for income taxes	$	6.2		$	4.3		46.6	%	$	16.1		$	14.9		8.3	%
Effective tax rate	44.8		%	48.5		%			54.8		%	59.2		%

Our effective tax rate for the three and nine months ended September 30, 2017 was different from the U.S. statutory tax rate primarily due to income tax expense recognized from exercises and expiration of out-of-the-money fully vested shares from our equity incentive plans. Similarly, the effective tax rate was lower for the three and nine months ended September 30, 2017 as compared to the same period in 2016, due to higher income tax expense recognized from exercises and expiration of vested shares from our equity incentive plans in 2016.

We recorded a provision for income taxes of $6.2 million and $4.3 million for the three months ended September 30, 2017 and 2016, respectively. We recorded a provision for income taxes of $16.1 million and $14.9 million for the nine months ended September 30, 2017 and 2016, respectively. During the three months ended September 30, 2017 and 2016, we paid withholding taxes of $4.7 million and $5.5 million, respectively. During the nine months ended September 30, 2017 and 2016, we paid withholding taxes of $15.6 million and $16.5 million, respectively.

Our effective tax rate for the three and nine months ended September 30, 2016 was different from the U.S. statutory tax rate primarily due to income tax expense recognized from exercises and expiration of out-of-the-money fully vested shares from our equity incentive plans.

We have U.S. federal deferred tax assets related to research and development credits, foreign tax credits and other tax attributes that can be used to offset federal taxable income in future periods. These credit carryforwards will expire if they are not used within certain time periods. As of September 30, 2017, we determined that there is sufficient positive evidence to conclude that it is more likely than not sufficient taxable income will exist in the future allowing us to recognize these deferred tax assets. It is possible that some or all these attributes could ultimately expire unused. If facts and circumstances change in the future, we may determine at that time a valuation allowance is necessary. A valuation allowance would materially increase our tax expense in the period applied and would adversely affect our results of operations and statement of financial condition. Changes in our underlying facts or circumstances, such as the impact of the acquisitions, will be continually assessed and we will re-evaluate our position accordingly.

As of September 30, 2017, we continue to maintain a valuation allowance against the majority of our state deferred tax assets. We periodically evaluate the realizability of our net deferred tax assets based on all available evidence, both positive and

36

negative. The realizability of our net deferred tax assets is dependent on our ability to generate sufficient future taxable income during periods prior to the expiration of tax attributes to fully utilize these assets.

Liquidity and Capital Resources

	As of
	September 30, 2017		December 31, 2016
	(In millions)
Cash and cash equivalents	$	182.3	$	135.3
Marketable securities	1.3		36.9
Total cash, cash equivalents, and marketable securities	$	183.6	$	172.2

	Nine Months Ended
	September 30,
	2017			2016
	(In millions)
Net cash provided by operating activities	$	57.8		$	61.5
Net cash provided by (used in) investing activities	$	31.0		$	(125.9	)
Net cash provided by (used in) financing activities	$	(43.4	)	$	10.8

Liquidity

We currently anticipate that existing cash, cash equivalents and marketable securities balances and cash flows from operations will be adequate to meet our cash needs for at least the next 12 months. Additionally, the majority of our cash and cash equivalents is in the United States. Our cash needs for the nine months ended September 30, 2017 were funded primarily from cash collected from our customers.

We do not anticipate any liquidity constraints as a result of either the current credit environment, investment fair value fluctuations or the repayment of the 2018 Notes in August 2018. Additionally, we have the intent and ability to hold our debt investments that have unrealized losses in accumulated other comprehensive gain (loss) for a sufficient period of time to allow for recovery of the principal amounts invested. Additionally, we have no significant exposure to European sovereign debt. We continually monitor the credit risk in our portfolio and mitigate our credit risk exposures in accordance with our policies.

As a part of our overall business strategy, from time to time, we evaluate businesses and technologies for potential acquisition that are aligned with our core business and designed to supplement our growth, including the acquisitions of SCS, assets of the Snowbush IP group and the Memory Interconnect Business.

To provide us with more flexibility in returning capital back to our shareholders, on January 21, 2015, our Board authorized a share repurchase program authorizing the repurchase of up to an aggregate of 20.0 million shares. During the second quarter of 2017, we entered into an accelerated share repurchase program with Barclays Bank PLC to repurchase an aggregate of $50.0 million of our common stock and received an initial delivery of 3.2 million shares, which were retired and recorded as a $40.0 million reduction to stockholders' equity. The remaining $10.0 million of the initial payment was recorded as a reduction to stockholders’ equity as an unsettled forward contract indexed to our stock. The number of shares to be ultimately purchased by us will be determined based on the volume weighted average price of the common stock during the terms of the transaction, minus an agreed upon discount between the parties. The program is expected to be completed by November 2017. We may continue to tactically execute the share repurchase program from time to time.

As of September 30, 2017, there remained an outstanding authorization to repurchase approximately 8.3 million shares of our outstanding common stock under the current share repurchase program. See “Share Repurchase Program” below.

Operating Activities

Cash provided by operating activities of $57.8 million for the nine months ended September 30, 2017 was primarily

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attributable to the cash generated from customer licensing, software license and related implementation, support and maintenance fees, product sales and engineering services fees. Changes in operating assets and liabilities for the nine months ended September 30, 2017 primarily included increases in accounts receivable and deferred revenue, offset by decreases in prepaids and other current assets, accounts payable, and accrued salaries and benefits and other liabilities mainly due to the payout of the Corporate Incentive Plan.

Cash provided by operating activities of $61.5 million for the nine months ended September 30, 2016 was primarily attributable to the cash generated from customer licensing, software license and related implementation, support and maintenance fees, and engineering services fees. Changes in operating assets and liabilities for the nine months ended September 30, 2016 primarily included a decrease in accrued salaries and benefits and other liabilities mainly due to the payout of the Corporate Incentive Plan and an increase in deferred revenue.

Investing Activities

Cash provided by investing activities of $31.0 million for the nine months ended September 30, 2017 primarily consisted of proceeds from the maturities and sales of available-for-sale marketable securities of $32.0 million and $4.5 million, respectively, offset by $5.4 million paid to acquire property, plant and equipment.

Cash used in investing activities of $125.9 million for the nine months ended September 30, 2016 primarily consisted of cash paid for the acquisition of SCS of $92.6 million, net of cash acquired of $12.1 million, cash paid for the acquisition of the Memory Interconnect Business of $90.0 million, cash paid for the acquisition of Snowbush IP assets of $32.0 million, cash paid for purchases of available-for-sale marketable securities of $54.9 million, $4.8 million paid to acquire property, plant and equipment, offset by proceeds from the maturities and sales of available-for-sale marketable securities of $85.7 million and $50.5 million, respectively.

Financing Activities

Cash used in financing activities of $43.4 million for the nine months ended September 30, 2017 was primarily due to an aggregate payment of $50.0 million to Barclays Bank PLC, as part of our accelerated share repurchase program, and $3.5 million in payments of taxes on restricted stock units, offset by $10.8 million proceeds from the issuance of common stock under equity incentive plans.

Cash provided by financing activities was $10.8 million for the nine months ended September 30, 2016. We received proceeds of $12.3 million from the issuance of common stock under equity incentive plans, offset by $0.5 million in principal payments made against the lease financing obligation and $1.9 million in payments of taxes on restricted stock units, which were reclassified from operating activities to conform with the current interim period presentation due to the adoption of Accounting Standards Update (“ASU”) No. 2016-09, “Improvements to Employee Share-Based Payment Accounting” as of January 1, 2017. Refer to Note 2, “Recent Accounting Pronouncements,” of Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q for further details regarding the adoption of this ASU.

Contractual Obligations

As of September 30, 2017, our material contractual obligations were (in thousands):

	Total		Remainderof 2017		2018		2019		2020		2021		Thereafter
Contractual obligations (1)
Imputed financing obligation (2)	$	17,511	$	1,593	$	6,447	$	6,602	$	2,869	$	—	$	—
Leases and other contractual obligations	28,336		3,020		6,000		5,631		4,662		4,793		4,230
Software licenses (3)	16,317		2,609		10,176		3,532		—		—		—
Convertible notes	138,000		—		138,000		—		—		—		—
Interest payments related to convertible notes	1,552		—		1,552		—		—		—		—
Total	$	201,716	$	7,222	$	162,175	$	15,765	$	7,531	$	4,793	$	4,230

_________________________________________

(1) The above table does not reflect possible payments in connection with uncertain tax benefits of approximately $22.9 million including $20.7 million recorded as a reduction of long-term deferred tax assets and $2.2 million in long-term income taxes payable as of September 30, 2017. As noted in Note 12, “Income Taxes,” of Notes to Unaudited Condensed

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Consolidated Financial Statements of this Form 10-Q, although it is possible that some of the unrecognized tax benefits could be settled within the next 12 months, we cannot reasonably estimate the outcome at this time.

(2) With respect to the imputed financing obligation, the main components of the difference between the amount reflected in the contractual obligations table and the amount reflected on the unaudited condensed consolidated balance sheets are the interest on the imputed financing obligation and the estimated common area expenses over the future periods. The amount includes the amended Ohio lease and the amended Sunnyvale lease.

(3) We have commitments with various software vendors for non-cancellable agreements generally having terms longer than one year.

Share Repurchase Program

During the nine months ended September 30, 2017, we repurchased shares of our common stock under our share repurchase program as discussed below.

On January 21, 2015, our Board approved a share repurchase program authorizing the repurchase of up to an aggregate of 20.0 million shares. Share repurchases under the plan may be made through the open market, established plans or privately negotiated transactions in accordance with all applicable securities laws, rules, and regulations. There is no expiration date applicable to the plan. 

On May 1, 2017, we initiated an accelerated share repurchase program with Barclays Bank PLC. The accelerated share repurchase program is part of the broader share repurchase program previously authorized by our Board on January 21, 2015. Under the accelerated share repurchase program, we pre-paid to Barclays Bank PLC, the $50.0 million purchase price for our common stock and, in turn, we received an initial delivery of approximately 3.2 million shares of our common stock from Barclays Bank PLC, in the second quarter of 2017, which were retired and recorded as a $40.0 million reduction to stockholders' equity. The remaining $10.0 million of the initial payment was recorded as a reduction to stockholders’ equity as an unsettled forward contract indexed to our stock. The number of shares to be ultimately purchased by us will be determined based on the volume weighted average price of the common stock during the terms of the transaction, minus an agreed upon discount between the parties. The program is expected to be completed by November 2017.

As of September 30, 2017, there remained an outstanding authorization to repurchase approximately 8.3 million shares of our outstanding common stock under the current share repurchase program.

We record stock repurchases as a reduction to stockholders’ equity. We record a portion of the purchase price of the repurchased shares as an increase to accumulated deficit when the price of the shares repurchased exceeds the average original proceeds per share received from the issuance of common stock.

Critical Accounting Policies and Estimates

The discussion and analysis of our financial condition and results of operations are based upon our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates, including those related to revenue recognition, investments, income taxes, litigation and other contingencies. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. Our critical accounting estimates include those regarding (1) revenue recognition, (2) goodwill, (3) intangible assets, (4) income taxes and (5) stock-based compensation. For a discussion of our critical accounting estimates, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Estimates” in our Annual Report on Form 10-K for the year ended December 31, 2016.

Recent Accounting Pronouncements

See Note 2, “Recent Accounting Pronouncements,” of Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q for discussion of recent accounting pronouncements including the respective expected dates of adoption.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk

We are exposed to financial market risks, primarily arising from the effect of interest rate fluctuations on our investment portfolio. Interest rate fluctuation may arise from changes in the market’s view of the quality of the security issuer, the overall economic outlook, and the time to maturity of our portfolio. We mitigate this risk by investing only in high quality, highly liquid instruments. Securities with original maturities of one year or less must be rated by two of the three industry standard rating agencies as follows: A1 by Standard & Poor’s, P1 by Moody’s and/or F-1 by Fitch. Securities with original maturities of greater than one year must be rated by two of the following industry standard rating agencies as follows: AA- by Standard & Poor’s, Aa3 by Moody’s and/or AA- by Fitch. By corporate investment policy, we limit the amount of exposure to $15.0 million or 10% of the portfolio, whichever is lower, for any single non-U.S. Government issuer. A single U.S. Agency can represent up to 25% of the portfolio. No more than 20% of the total portfolio may be invested in the securities of an industry sector, with money market fund investments evaluated separately. Our policy requires that at least 10% of the portfolio be in securities with a maturity of 90 days or less. We may make investments in U.S. Treasuries, U.S. Agencies, corporate bonds and municipal bonds and notes with maturities up to 36 months. However, the bias of our investment portfolio is shorter maturities. All investments must be U.S. dollar denominated. Additionally, we have no significant exposure to European sovereign debt.

We invest our cash equivalents and marketable securities in a variety of U.S. dollar financial instruments such as U.S. Treasuries, U.S. Government Agencies, commercial paper and corporate notes. Our policy specifically prohibits trading securities for the sole purposes of realizing trading profits. However, we may liquidate a portion of our portfolio if we experience unforeseen liquidity requirements. In such a case, if the environment has been one of rising interest rates we may experience a realized loss, similarly, if the environment has been one of declining interest rates we may experience a realized gain. As of September 30, 2017, we had an investment portfolio of fixed income marketable securities of $142.3 million including cash equivalents. If market interest rates were to increase immediately and uniformly by 1.0% from the levels as of September 30, 2017, the fair value of the portfolio would decline by approximately$0.1million. Actual results may differ materially from this sensitivity analysis.

The fair value of our convertible notes is subject to interest rate risk, market risk and other factors due to the convertible feature. The fair value of the convertible notes will generally increase as interest rates fall and decrease as interest rates rise. In addition, the fair value of the convertible notes will generally increase as our common stock price increases and will generally decrease as our common stock price declines in value. The interest and market value changes affect the fair value of our convertible notes but do not impact our financial position, cash flows or results of operations due to the fixed nature of the debt obligation.

We invoice the majority of our customers in U.S. dollars. Although the fluctuation of currency exchange rates may impact our customers, and thus indirectly impact us, we do not attempt to hedge this indirect and speculative risk. Our overseas operations consist primarily of international business operations in the Netherlands and the United Kingdom, design centers in Canada, India and Finland and small business development offices in Australia, China, Japan, Korea, Singapore and Taiwan. We monitor our foreign currency exposure; however, as of September 30, 2017, we believe our foreign currency exposure is not material enough to warrant foreign currency hedging.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in the reports we file or submit pursuant to the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Management, with the participation of the Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the design and operation of our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act as of the end of the period covered by this report. Based on this evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that, as of September 30, 2017, our disclosure controls and procedures were effective.

Changes in Internal Control Over Financial Reporting

There were no changes in internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) during the quarter ended September 30, 2017, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II—OTHER INFORMATION

Item 1. Legal Proceedings

We are not currently a party to any material pending legal proceeding; however, from time to time, we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. Although the results of litigation and claims cannot be predicted with certainty, we currently believe that the final outcome of these ordinary course matters will not have a material adverse effect on our business, operating results, financial position or cash flows. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

Item 1A. Risk Factors

Because of the following factors, as well as other variables affecting our operating results, past financial performance may not be a reliable indicator of future performance, and historical trends should not be used to anticipate results or trends in future periods. See also “Note Regarding Forward-Looking Statements” at the beginning of this report.

Risks Associated With Our Business, Industry and Market Conditions

The success of our business depends on sustaining or growing our licensing revenue and the failure to achieve such revenue would lead to a material decline in our results of operations.

Our revenue consists mainly of patent and technology license fees paid for access to our patents, developed technology and development and support services provided to our customers. Our ability to secure and renew the licenses from which our revenues are derived depends on our customers adopting our technology and using it in the products they sell. Once secured, license revenue may be negatively affected by factors within and outside our control, including reductions in our customers’ sales prices, sales volumes, our failure to timely complete engineering deliverables, and the terms of such licenses. In addition, our licensing cycle for new licensees as well as renewals for existing licensees is lengthy, costly and unpredictable without any degree of certainty. We cannot provide any assurance that we will be successful in signing new license agreements or renewing existing license agreements on equal or favorable terms or at all. If we do not achieve our revenue goals, our results of operations could decline.

We have traditionally operated in, and may enter other, industries that are highly cyclical and competitive.

Our target customers are companies that develop and market high volume business and consumer products in semiconductors, computing, data centers, networks, tablets, handheld devices, mobile applications, gaming and graphics, high-definition televisions, general lighting, cryptography and data security. The electronics industry is intensely competitive and has been impacted by rapid technological change, short product life cycles, cyclical market patterns, price erosion and increasing foreign and domestic competition. We are subject to many risks beyond our control that influence whether or not we are successful in winning target customers or retaining existing customers, including, primarily, competition in a particular industry, market acceptance of such customers' products and the financial resources of such customers. In particular, DRAM manufacturers, which make up a significant part of our revenue, are prone to significant business cycles and have suffered material losses and other adverse effects to their businesses, leading to industry consolidation from time-to-time that may result in loss of revenues under our existing license agreements or loss of target customers. As a result of ongoing competition in the industries in which we operate and volatility in various economies around the world, we may achieve a reduced number of licenses or may experience tightening of customers' operating budgets, difficulty or inability of our customers to pay our licensing fees, lengthening of the approval process for new licenses and consolidation among our customers. All of these factors may adversely affect the demand for our technology and may cause us to experience substantial fluctuations in our operating results.

We face competition from semiconductor and digital electronics products and systems companies, other semiconductor intellectual property companies that provide security cores and non-edge lit LED lighting options that are available to the market. We believe the principal competition for our technologies may come from our prospective customers, some of which are evaluating and developing products based on technologies that they contend or may contend will not require a license from us. Some of our competitors use a system-level design approach similar to ours, including activities such as board and package design, power and signal integrity analysis, and thermal management. Many of these companies are larger and may have better access to financial, technical and other resources than we possess.

To the extent that alternatives might provide comparable system performance at lower or similar cost to our technologies, or are perceived to require the payment of no or lower royalties, or to the extent other factors influence the industry, our customers

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and prospective customers may adopt and promote alternative technologies. Even to the extent we determine that such alternative technologies infringe our patents, there can be no assurance that we would be able to negotiate agreements that would result in royalties being paid to us without litigation, which could be costly and the results of which would be uncertain.

In addition, our expansion into new markets subjects us to additional risks. We may have limited or no experience in new products and markets, including our CryptoManager platform and new offerings that have resulted from our acquisition of SCS in the mobile payment and smart ticketing solution spaces, and our acquisitions of the assets of the Snowbush IP group and the Memory Interconnect Business, and our customers may not adopt our new offerings. These and other new offerings may present new and difficult challenges, which could negatively affect our operating results.

We may have to invest more resources in research and development than anticipated, which could increase our operating expenses and negatively impact our operating results.

If new competitors, technological advances by existing competitors, and/or development of new technologies or other competitive factors require us to invest significantly greater resources than anticipated in our research and development efforts, our operating expenses could increase. If we are required to invest significantly greater resources than anticipated in research and development efforts without an increase in revenue, our operating results would decline. We expect these expenses to increase in the foreseeable future as our technology development efforts continue.

Our revenue is concentrated in a few customers, and if we lose any of these customers through contract terminations or acquisitions, our revenue may decrease substantially.

We have a high degree of revenue concentration. Our top five customers for each reporting period represented approximately 56% and 65% of our revenue for the nine months ended September 30, 2017 and 2016, respectively. For both of the nine months ended September 30, 2017 and 2016, revenue from Micron, Samsung and SK hynix each accounted for 10% or more of our total revenue. Additionally, our top five customers represented approximately 63% and 65% of our revenues for the years ended December 31, 2016 and 2015, respectively. For both of the years ended December 31, 2016 and 2015, revenues from Micron, Samsung and SK hynix each accounted for 10% or more of our total revenue in each year. We extended our license agreement with Samsung in December 2013, and we expect Samsung to continue to account for a significant portion of our licensing revenue. We also entered into settlement agreements with each of SK hynix and Micron (which included Elpida, which Micron had acquired in July 2013) in June 2013 and December 2013, respectively. In June 2015, we also extended our license agreement with SK hynix. As a result of the renewal and such settlements, we expect each of Samsung, SK hynix and Micron to account for a significant portion of our licensing revenue in the future. We expect to continue to experience significant revenue concentration for the foreseeable future.

In addition, our license agreements are complex and some contain terms that require us to provide certain customers with the lowest royalty rate that we provide to other customers for similar technologies, volumes and schedules. These clauses may limit our ability to effectively price differently among our customers, to respond quickly to market forces, or otherwise to compete on the basis of price. These clauses may also require us to reduce royalties payable by existing customers when we enter into or amend agreements with other customers. Any adjustment that reduces royalties from current customers or licensees may have a material adverse effect on our operating results and financial condition.

We continue to negotiate with customers and prospective customers to enter into license agreements. Any future agreement may trigger our obligation to offer comparable terms or modifications to agreements with our existing customers, which may be less favorable to us than the existing license terms. We expect licensing fees will continue to vary based on our success in renewing existing license agreements and adding new customers, as well as the level of variation in our customers' reported shipment volumes, sales price and mix, offset in part by the proportion of customer payments that are fixed. In particular, under our license agreement with Samsung, the license fees payable by Samsung are subject to certain adjustments and conditions, and we therefore cannot provide assurances that the revenues generated by this license will not decline in the future. In addition, some of our material license agreements may contain rights by the customer to terminate for convenience, or upon certain other events, such as change of control, material breach, insolvency or bankruptcy proceedings. If we are unsuccessful in entering into license agreements with new customers or renewing license agreements with existing customers, on favorable terms or at all, or if they are terminated, our results of operations may decline significantly.

Our business and operations could suffer in the event of security breaches.

Attempts by others to gain unauthorized access to our information technology systems are becoming more sophisticated. These attempts, which might be related to industrial or other espionage, include covertly introducing malware to our computers and networks and impersonating authorized users, among others. We seek to detect and investigate all security incidents and to prevent their recurrence, but in some cases, we might be unaware of an incident or its magnitude and effects. While we have not identified any material incidents of unauthorized access to date, the theft, unauthorized use or publication of our intellectual

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property and/or confidential business information could harm our competitive position and reputation, reduce the value of our investment in research and development and other strategic initiatives or otherwise adversely affect our business. To the extent that any future security breach results in inappropriate disclosure of our customers' confidential information, we may incur liability.

Failures in our products and services or in the products of our customers, including those resulting from security vulnerabilities, defects, bugs or errors, could harm our business.

Our products and services are highly technical and complex, and among our various businesses our products and services are crucial to providing security, payment and other critical functions for our customers’ operations. Our products and services have from time to time contained and may in the future contain undetected errors, bugs defects or other security vulnerabilities. Some errors in our products and services may only be discovered after a product or service has been deployed and used by customers, and may in some cases only be detected under certain circumstances or after extended use. In addition, because the techniques used by hackers to access or sabotage our products and services and other technologies change and evolve frequently and generally are not recognized until launched against a target, we may be unable to anticipate, detect or prevent these techniques and may not address them in our data security technologies. Any errors, bugs, defects or security vulnerabilities discovered in our solutions after commercial release could adversely affect our revenue, our customer relationships and the market's perception of our products and services. We may not be able to correct any errors, bugs, defects, security flaws or vulnerabilities promptly, or at all. Any breaches, defects, errors or vulnerabilities in our products and services could result in:

• expenditure of significant financial and research and development resources in efforts to analyze, correct, eliminate or work around breaches, errors, bugs or defects or to address and eliminate vulnerabilities;

• financial liability to customers for breach of certain contract provisions, including indemnification obligations;

• loss of existing or potential customers;

• delayed or lost revenue;

• delay or failure to attain market acceptance;

• negative publicity, which would harm our reputation; and

• litigation, regulatory inquiries or investigations that would be costly and harm our reputation.

Some of our revenue is subject to the pricing policies of our customers over which we have no control.

We have no control over our customers' pricing of their products and there can be no assurance that licensed products will be competitively priced or will sell in significant volumes. Any premium charged by our customers in the price of memory and controller chips or other products over alternatives must be reasonable. If the benefits of our technology do not match the price premium charged by our customers, the resulting decline in sales of products incorporating our technology could harm our operating results.

Our licensing cycle is lengthy and costly, and our marketing and licensing efforts may be unsuccessful.

The process of persuading customers to adopt and license our chip interface, lighting, data security, and other technologies can be lengthy.  Even if successful, there can be no assurance that our technologies will be used in a product that is ultimately brought to market, achieves commercial acceptance or results in significant royalties to us. We generally incur significant marketing and sales expenses prior to entering into our license agreements, generating a license fee and establishing a royalty stream from each customer. The length of time it takes to establish a new licensing relationship can take many months or even years. We may incur costs in any particular period before any associated revenue stream begins, if at all. If our marketing and sales efforts are very lengthy or unsuccessful, then we may face a material adverse effect on our business and results of operations as a result of failure to obtain or an undue delay in obtaining royalties.

Future revenue is difficult to predict for several reasons, and our failure to predict revenue accurately may result in our stock price declining.

Our lengthy license negotiation cycles could make our future revenue difficult to predict because we may not be successful in entering into licenses with our customers on our anticipated timelines.

In addition, while some of our license agreements provide for fixed, quarterly royalty payments, many of our license agreements provide for volume-based royalties, and may also be subject to caps on royalties in a given period. The sales volume and prices of our customers' products in any given period can be difficult to predict. Furthermore, when we apply the Standard for the first quarter of 2018, we anticipate that our revenue will vary a great deal from quarter to quarter as discussed further below. As a result of the foregoing items, our actual results may differ substantially from analyst estimates or our forecasts in any given quarter.

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Also, a portion of our revenue comes from development and support services provided to our customers. Depending upon the nature of the services, a portion of the related revenue may be recognized ratably over the support period, or may be recognized according to contract revenue accounting. Contract revenue accounting may result in deferral of the service fees to the completion of the contract, or may result in the recognition of service fees over the period in which services are performed on a percentage-of-completion basis.

We may not be successful in entering into new markets, and our new product offerings, such as our acquisitions of SCS, the assets of the Snowbush IP group and the Memory Interconnect Business, our CryptoManager platform and new offerings in the mobile credential and smart card solution spaces, may not be adopted by our customers or potential customers. In addition, once we commercially launch our products, the sales volume of and resulting revenue from such products in any given period will be difficult to predict.

We may fail to meet our publicly announced guidance or other expectations about our business, which would likely cause our stock price to decline.

We provide guidance regarding our expected financial and business performance including our anticipated future revenues, operating expenses and other financial and operation metrics. We are evaluating the form and content of any guidance that we may provide following implementation of the Standard, a new revenue recognition standard that will be effective for the first quarter of 2018, and expect our guidance metrics to change.

Correctly identifying the key factors affecting business conditions and predicting future events is an inherently uncertain process. Any guidance that we provide may not always be accurate, or may vary from actual results, due to our inability to correctly identify and quantify risks and uncertainties to our business and to quantify their impact on our financial performance. We offer no assurance that such guidance will ultimately be accurate, and investors should treat any such guidance with appropriate caution. If we fail to meet our guidance or if we find it necessary to revise such guidance, even if such failure or revision is seemingly insignificant, investors and analysts may lose confidence in us and the market value of our common stock could be materially adversely affected.

Changes in accounting principles and guidance could result in unfavorable accounting charges or effects.

We prepare our financial statements in accordance with accounting principles generally accepted in the United States and these principles are subject to interpretation by the SEC and various bodies. A change in these principles or application guidance, or in their interpretations, may have a material effect on our reported results, as well as our processes and related controls, and may retroactively affect previously reported results. For example, in May 2014, the FASB issued the Standard. The Standard, as amended, is effective for us on January 1, 2018. We have yet to make a final decision regarding the adoption method we will use, but we believe we will adopt the Standard on a full retrospective basis, with a cumulative-effect adjustment to the opening balance of retained earnings on January 1, 2016 determined on the basis of the impact of the Standard on the accounting for contracts that are not completed as of that date. Although we have yet to finalize our evaluation and quantification of the effects that the Standard will have on our consolidated financial statements, and to finalize the design and implementation of related changes to our policies, procedures and controls, we expect the Standard to materially impact the timing of revenue recognition for our fixed-fee intellectual property (IP) licensing arrangements (including certain fixed-fee agreements that license our existing IP portfolio as well as IP added to our portfolio during the license term) as a majority of such revenue would be recognized at inception of the license term, as opposed to over time as is the case under current U.S. GAAP, and we will be required to compute and recognize interest income over time as control over the IP generally transfers significantly in advance of cash being received from customers. We are also evaluating the form and content of any guidance that we may provide following implementation of the Standard and expect our guidance metrics to change. We expect that any change to current revenue recognition practices may significantly increase volatility in our quarterly revenue trends.

We have in the past made and may in the future make acquisitions or enter into mergers, strategic investments, sales of assets or other arrangements that may not produce expected operating and financial results.

From time to time, we engage in acquisitions, strategic transactions and strategic investments, such as our 2016 acquisitions of SCS, the assets of the Snowbush IP group and the Memory Interconnect Business. Many of our acquisitions or strategic investments entail a high degree of risk, including those involving new areas of technology and such investments may not become liquid for several years after the date of the investment, if at all. Our acquisitions or strategic investments may not provide the advantages that we anticipated or generate the financial returns we expect, including if we are unable to close any pending acquisitions. For example, for any pending or completed acquisitions, we may discover unidentified issues not discovered in due diligence, and we may be subject to liabilities that are not covered by indemnification protection or become subject to litigation. Achieving the anticipated benefits of business acquisitions depends in part upon our ability to integrate the acquired businesses in an efficient and effective manner. The integration of companies that have previously operated

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independently may result in significant challenges, including, among others: retaining key employees; successfully integrating new employees, business systems and technology; retaining customers of the acquired business; minimizing the diversion of management's and other employees’ attention from ongoing business matters; coordinating geographically separate organizations; consolidating research and development operations; and consolidating corporate and administrative infrastructures.

Our strategic investments in new areas of technology may involve significant risks and uncertainties, including distraction of management from current operations, greater than expected liabilities and expenses, inadequate return of capital, and unidentified issues not discovered in due diligence. These investments are inherently risky and may not be successful.

In addition, we may record impairment charges related to our acquisitions or strategic investments. Any losses or impairment charges that we incur related to acquisitions, strategic investments or sales of assets will have a negative impact on our financial results and the market value of our common stock, and we may continue to incur new or additional losses related to acquisitions or strategic investments.

We may have to incur debt or issue equity securities to pay for any future acquisition, which debt could involve restrictive covenants or which equity security issuance could be dilutive to our existing stockholders.

From time to time, we may also divest certain assets, where we may be required to provide certain representations, warranties and covenants to their buyers. While we would seek to ensure the accuracy of such representations and warranties and fulfillment of any ongoing obligations, we may not be completely successful and consequently may be subject to claims by a purchaser of such assets.

A substantial portion of our revenue is derived from sources outside of the United States and this revenue and our business generally are subject to risks related to international operations that are often beyond our control.

For the nine months ended September 30, 2017 and 2016, revenues received from our international customers constituted approximately 58% and 65%, respectively, of our total revenue. Additionally, for the years ended December 31, 2016 and 2015, revenues received from our international customers constituted approximately 64% and 60%, respectively, of our total revenue. We expect that future revenue derived from international sources will continue to represent a significant portion of our total revenue.

To the extent that customer sales are not denominated in U.S. dollars, any royalties which are based on a percentage of the customers' sales that we receive as a result of such sales could be subject to fluctuations in currency exchange rates. In addition, if the effective price of licensed products sold by our foreign customers were to increase as a result of fluctuations in the exchange rate of the relevant currencies, demand for licensed products could fall, which in turn would reduce our royalties. We do not use financial instruments to hedge foreign exchange rate risk.

We currently have international business operations in the United Kingdom and the Netherlands, international design operations in Canada, India, Finland and France, and business development operations in Australia, China, Japan, Korea, Singapore and Taiwan. Our international operations and revenue are subject to a variety of risks which are beyond our control, including:

• hiring, maintaining and managing a workforce and facilities remotely and under various legal systems, including compliance with local labor and employment laws;

• non-compliance with our code of conduct or other corporate policies;

• natural disasters, acts of war, terrorism, widespread illness or security breaches;

• export controls, tariffs, import and licensing restrictions and other trade barriers;

• profits, if any, earned abroad being subject to local tax laws and not being repatriated to the United States or, if repatriation is possible, limited in amount;

• adverse tax treatment of revenue from international sources and changes to tax codes, including being subject to foreign tax laws and being liable for paying withholding, income or other taxes in foreign jurisdictions;

• unanticipated changes in foreign government laws and regulations;

• increased financial accounting and reporting burdens and complexities;

• lack of protection of our intellectual property and other contract rights by jurisdictions in which we may do business to the same extent as the laws of the United States;

• potential vulnerability to computer system, internet or other systemic attacks, such as denial of service, viruses or other malware which may be caused by criminals, terrorists or other sophisticated organizations;

• social, political and economic instability;

• geopolitical issues, including changes in diplomatic and trade relationships; and

• cultural differences in the conduct of business both with customers and in conducting business in our international facilities and international sales offices.

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We and our customers are subject to many of the risks described above with respect to companies which are located in different countries. There can be no assurance that one or more of the risks associated with our international operations will not result in a material adverse effect on our business, financial condition or results of operations.

Weak global economic conditions may adversely affect demand for the products and services of our customers.

Our operations and performance depend significantly on worldwide economic conditions. Uncertainty about global or regional economic and political conditions poses a risk as consumers and businesses may postpone spending in response to tighter credit, negative financial news and declines in income or asset values, which could have a material negative effect on the demand for the products of our customers in the foreseeable future. If our customers experience reduced demand for their products as a result of global or regional economic conditions or otherwise, this could result in reduced royalty revenue and our business and results of operations could be harmed.

If our counterparties are unable to fulfill their financial and other obligations to us, our business and results of operations may be affected adversely.

Any downturn in economic conditions or other business factors could threaten the financial health of our counterparties, including companies with which we have entered into licensing and/or settlement agreements, and their ability to fulfill their financial and other obligations to us. Such financial pressures on our counterparties may eventually lead to bankruptcy proceedings or other attempts to avoid financial obligations that are due to us. Because bankruptcy courts have the power to modify or cancel contracts of the petitioner which remain subject to future performance and alter or discharge payment obligations related to pre-petition debts, we may receive less than all of the payments that we would otherwise be entitled to receive from any such counterparty as a result of bankruptcy proceedings.

If we are unable to attract and retain qualified personnel, our business and operations could suffer.

Our success is dependent upon our ability to identify, attract, compensate, motivate and retain qualified personnel, especially engineers, senior management and other key personnel. The loss of the services of any key employees could be disruptive to our development efforts or business relationships and could cause our business and operations to suffer.

We are subject to various government restrictions and regulations, including on the sale of products and services that use encryption technology and those related to privacy and other consumer protection matters.

Various countries have adopted controls, license requirements and restrictions on the export, import and use of products or services that contain encryption technology. In addition, governmental agencies have proposed additional requirements for encryption technology, such as requiring the escrow and governmental recovery of private encryption keys. Restrictions on the sale or distribution of products or services containing encryption technology may impact the ability of RSD to license its data security technologies to the manufacturers and providers of such products and services in certain markets or may require RSD or its customers to make changes to the licensed data security technology that is embedded in such products to comply with such restrictions. Government restrictions, or changes to the products or services of RSD's customers to comply with such restrictions, could delay or prevent the acceptance and use of such customers' products and services. In addition, the United States and other countries have imposed export controls that prohibit the export of encryption technology to certain countries, entities and individuals. Our failure to comply with export and use regulations concerning encryption technology of RSD could subject us to sanctions and penalties, including fines, and suspension or revocation of export or import privileges.

We are subject to a variety of laws and regulations in the United States, the European Union and other countries that involve, for example, user privacy, data protection and security, content and consumer protection. A number of proposals are pending before federal, state, and foreign legislative and regulatory bodies that could significantly affect our business. Existing and proposed laws and regulations can be costly to comply with and can delay or impede the development of new products, result in negative publicity, increase our operating costs and subject us to claims or other remedies.

In accordance with the Dodd-Frank Wall Street Reform and Consumer Protection Act, the SEC established new disclosure and reporting requirements for those companies that use "conflict" minerals mined from the Democratic Republic of Congo and adjoining countries in their products, whether or not these products are manufactured by third parties. These requirements could affect the sourcing and availability of minerals that are used in the manufacture of our products. We have to date incurred costs and expect to incur significant additional costs associated with complying with the disclosure requirements, including for example, due diligence in regard to the sources of any conflict minerals used in our products, in addition to the cost of remediation and other changes to products, processes, or sources of supply as a consequence of such verification activities. Additionally, we may face reputational challenges with our customers and other stakeholders if we are unable to sufficiently verify the origins of all minerals used in our products through the due diligence procedures that we implement. We may also face challenges with government regulators and our customers and suppliers if we are unable to sufficiently verify that the metals used in our products are conflict free.

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Our operations are subject to risks of natural disasters, acts of war, terrorism, widespread illness or security breach at our domestic and international locations, any one of which could result in a business stoppage and negatively affect our operating results.

Our business operations depend on our ability to maintain and protect our facilities, computer systems and personnel, which are primarily located in the San Francisco Bay Area in the United States, the United Kingdom, the Netherlands, India and Australia. The San Francisco Bay Area is in close proximity to known earthquake fault zones. Our facilities and transportation for our employees are susceptible to damage from earthquakes and other natural disasters such as fires, floods and similar events. Should a catastrophe disable our facilities, we do not have readily available alternative facilities from which we could conduct our business, so any resultant work stoppage could have a negative effect on our operating results. We also rely on our network infrastructure and technology systems for operational support and business activities which are subject to physical and cyber damage, and also susceptible to other related vulnerabilities common to networks and computer systems. Acts of terrorism, widespread illness, war and any event that causes failures or interruption in our network infrastructure and technology systems could have a negative effect at our international and domestic facilities and could harm our business, financial condition, and operating results.

We do not have extensive experience in manufacturing and marketing products and, as a result, may be unable to sustain and grow a profitable commercial market for new and existing products.

We do not have extensive experience in creating, manufacturing and marketing products, including our CryptoManager platform, our RLD product offerings and new offerings that have resulted from our acquisition of SCS in the mobile credential and smart card solution spaces, and our acquisitions of the assets of the Snowbush IP group and the Memory Interconnect Business. These and other new offerings may present new and difficult challenges, and we may be subject to claims if customers of these offerings experience delays, failures, non-performance or other quality issues. In particular, we may experience difficulties with product design, qualification, manufacturing, marketing or certification that could delay or prevent our development, introduction or marketing of new products. Although we intend to design our products to be fully compliant with applicable industry standards, proprietary enhancements may not in the future result in full conformance with existing industry standards under all circumstances.

If we fail to introduce products that meet the demand of our customers or penetrate new markets in which we expend significant resources, our revenues will decrease over time and our financial condition could suffer. Additionally, if we concentrate resources on a new market that does not prove profitable or sustainable, it could damage our reputation and limit our growth, and our financial condition could decline.

We rely on a number of third-party providers for data center hosting facilities, equipment, maintenance and other services, and the loss of, or problems with, one or more of these providers may impede our growth or cause us to lose customers.

We rely on third-party providers to supply data center hosting facilities, equipment, maintenance and other services in order to provide some of our services, including in our offerings of our advanced mobile payment platform and smart ticketing platform, and have entered into various agreements for such services. The continuous availability of our service depends on the operations of those facilities, on a variety of network service providers and on third-party vendors. In addition, we depend on our third-party facility providers’ ability to protect these facilities against damage or interruption from natural disasters, power or telecommunications failures, criminal acts, cyber-attacks and similar events. If there are any lapses of service or damage to a facility, we could experience lengthy interruptions in our service as well as delays and additional expenses in arranging new facilities and services. Even with current and planned disaster recovery arrangements, our business could be harmed. Any interruptions or delays in our service, whether as a result of third-party error, our own error, natural disasters, criminal acts, security breaches or other causes, whether accidental or willful, could harm our relationships with customers, harm our reputation and cause our revenue to decrease and/or our expenses to increase. Also, in the event of damage or interruption, our insurance policies may not adequately compensate us for any losses that we may incur. These factors in turn could further reduce our revenue, subject us to liability and cause us to issue credits or cause us to lose customers, any of which could materially adversely affect our business.

We rely on third parties for a variety of services, including manufacturing, and these third parties’ failure to perform these services adequately could materially and adversely affect our business.

We rely on third parties for a variety of services, including our manufacturing supply chain partners and third parties within our sales and distribution channels. Certain of these third parties are, and may be, our sole manufacturer or sole source of production materials. If we fail to manage our relationship with these manufacturers and suppliers effectively, or if they experience delays, disruptions, capacity constraints or quality control problems in their operations, our ability to ship products to our customers could be impaired and our competitive position and reputation could be harmed. In addition, any adverse

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change in any of our manufacturers and suppliers’ financial or business condition could disrupt our ability to supply quality products to our customers. If we are required to change our manufacturers, we may lose revenue, incur increased costs and damage our end-customer relationships. In addition, qualifying a new manufacturer and commencing production can be an expensive and lengthy process. If our third party manufacturers or suppliers are unable to provide us with adequate supplies of high-quality products for any other reason, we could experience a delay in our order fulfillment, and our business, operating results and financial condition would be adversely affected. In the event these and other third parties we rely on fail to provide their services adequately, including as a result of errors in their systems or events beyond their control, or refuse to provide these services on terms acceptable to us or at all, and we are not able to find suitable alternatives, our business may be materially and adversely affected. In addition, our orders may represent a relatively small percentage of the overall orders received by our manufacturers from their customers. As a result, fulfilling our orders may not be considered a priority in the event our manufacturers are constrained in their ability to fulfill all of their customer obligations in a timely manner. If our manufacturers are unable to provide us with adequate supplies of high-quality products, or if we or our manufacturers are unable to obtain adequate quantities of components, it could cause a delay in our order fulfillment, in which case our business, operating results and financial condition could be adversely affected.

Warranty and product liability claims brought against us could cause us to incur significant costs and adversely affect our operating results as well as our reputation and relationships with customers.

We may from time to time be subject to warranty and product liability claims with regard to product performance and our services. We could incur material losses as a result of warranty, support, repair or replacement costs in response to customer complaints or in connection with the resolution of contemplated or actual legal proceedings relating to such claims. In addition to potential losses arising from claims and related legal proceedings, warranty and product liability claims could affect our reputation and our relationship with customers. We generally attempt to limit the maximum amount of indemnification or liability that we could be exposed to under our contracts, however, this is not always possible.

Any failure in our delivery of high-quality technical support services may adversely affect our relationships with our customers and our financial results.

Our customers depend on our support organization to resolve technical issues and provide ongoing maintenance relating to our products and services. We may be unable to respond quickly enough to accommodate short-term increases in customer demand for support services. Increased customer demand for these services, without corresponding revenues, could increase costs and adversely affect our operating results. In addition, our sales process is highly dependent on our offerings and business reputation and on positive recommendations from our existing customers. Any failure to maintain high-quality technical support, or a market perception that we do not maintain high-quality support, could adversely affect our reputation, our ability to sell our solutions to existing and prospective customers, and our business, operating results and financial position.

Certain software that we use in certain of our products is licensed from third parties and, for that reason, may not be available to us in the future, which has the potential to delay product development and production or cause us to incur additional expense, which could materially adversely affect our business, financial condition, operating results and cash flow.

Some of our products and services contain software licensed from third parties. Some of these licenses may not be available to us in the future on terms that are acceptable to us or allow our products to remain competitive. The loss of these licenses or the inability to maintain any of them on commercially acceptable terms could delay development of future offerings or the enhancement of existing products and services. We may also choose to pay a premium price for such a license in certain circumstances where continuity of the licensed product would outweigh the premium cost of the license. The unavailability of these licenses or the necessity of agreeing to commercially unreasonable terms for such licenses could materially adversely affect our business, financial condition, operating results and cash flow.

Certain software we use is from open source code sources, which, under certain circumstances, may lead to unintended consequences and, therefore, could materially adversely affect our business, financial condition, operating results and cash flow.

We use open source software in our services, including our advanced mobile payment platform and smart ticketing platform, and we intend to continue to use open source software in the future. From time to time, there have been claims challenging the ownership of open source software against companies that incorporate open source software into their products or alleging that these companies have violated the terms of an open source license. As a result, we could be subject to lawsuits by parties claiming ownership of what we believe to be open source software or alleging that we have violated the terms of an open source license. Litigation could be costly for us to defend, have a negative effect on our operating results and financial

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condition or require us to devote additional research and development resources to change our solutions. In addition, if we were to combine our proprietary software solutions with open source software in certain manners, we could, under certain open source licenses, be required to publicly release the source code of our proprietary software solutions. If we inappropriately use open source software, we may be required to re-engineer our solutions, discontinue the sale of our solutions, release the source code of our proprietary software to the public at no cost or take other remedial actions. There is a risk that open source licenses could be construed in a way that could impose unanticipated conditions or restrictions on our ability to commercialize our solutions, which could adversely affect our business, operating results and financial condition.

Our business and operating results could be harmed if we undertake any restructuring activities.

From time to time, we may undertake restructurings of our business, such as the restructuring and plan of termination that we undertook in the fourth quarter of 2015. There are several factors that could cause restructurings to have adverse effects on our business, financial condition and results of operations. These include potential disruption of our operations, the development of our technology, the deliveries to our customers and other aspects of our business. Loss of sales, service and engineering talent, in particular, could damage our business. Any restructuring would require substantial management time and attention and may divert management from other important work. Employee reductions or other restructuring activities also would cause us to incur restructuring and related expenses such as severance expenses. Moreover, we could encounter delays in executing any restructuring plans, which could cause further disruption and additional unanticipated expense.

Problems with our information systems could interfere with our business and could adversely impact our operations.

We rely on our information systems and those of third parties for fulfilling licensing and contractual obligations, processing customer orders, delivering products, providing services and support to our customers, billing and tracking our customer orders, performing accounting operations and otherwise running our business. If our systems fail, our disaster and data recovery planning and capacity may prove insufficient to enable timely recovery of important functions and business records. Any disruption in our information systems and those of the third parties upon whom we rely could have a significant impact on our business. Additionally, our information systems may not support new business models and initiatives and significant investments could be required in order to upgrade them. For example, in connection with our adoption of the Standard, we plan to augment our systems with new revenue accounting software, utilizing internal and third party resources. Delays in adapting our information systems to address new business models and accounting standards could limit the success or result in the failure of such initiatives and impair the effectiveness of our internal controls. Even if we do not encounter these adverse effects, the implementation of these enhancements may be much more costly than we anticipated. If we are unable to successfully implement the information systems enhancements as planned, our operating results could be negatively impacted.

Risks Related to Capitalization Matters and Corporate Governance

The price of our common stock may continue to fluctuate.

Our common stock is listed on The NASDAQ Global Select Market under the symbol “RMBS.” The trading price of our common stock has at times experienced price volatility and may continue to fluctuate significantly in response to various factors, some of which are beyond our control.  Some of these factors include:

• any progress, or lack of progress, real or perceived, in the development of products that incorporate our innovations and technology companies' acceptance of our products, including the results of our efforts to expand into new target markets;

• our signing or not signing new licenses and the loss of strategic relationships with any customer;

• announcements of technological innovations or new products by us, our customers or our competitors;

• changes in our strategies, including changes in our licensing focus and/or acquisitions of companies with business models or target markets different from our own;

• positive or negative reports by securities analysts as to our expected financial results and business developments;

• developments with respect to patents or proprietary rights and other events or factors;

• new litigation and the unpredictability of litigation results or settlements; and

• issuance of additional securities by us, including in acquisitions.

In addition, the stock market in general, and prices for companies in our industry in particular, have experienced extreme volatility that often has been unrelated to the operating performance of such companies. These broad market and industry fluctuations may adversely affect the price of our common stock, regardless of our operating performance.

We have outstanding senior convertible notes in an aggregate principal amount totaling $138.0 million. Because these notes are convertible into shares of our common stock, volatility or depressed prices of our common stock could have a similar effect on the trading price of such notes. In addition, the existence of these notes may encourage short selling in our common stock by market participants because the conversion of the notes could depress the price of our common stock.

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We have been party to, and may in the future be subject to, lawsuits relating to securities law matters which may result in unfavorable outcomes and significant judgments, settlements and legal expenses which could cause our business, financial condition and results of operations to suffer.

We and certain of our current and former officers and directors, as well as our current auditors, were subject from 2006 to 2011 to several stockholder derivative actions, securities fraud class actions and/or individual lawsuits filed in federal court against us and certain of our current and former officers and directors. The complaints generally alleged that the defendants violated the federal and state securities laws and stated state law claims for fraud and breach of fiduciary duty. Although to date these complaints have either been settled or dismissed, the amount of time to resolve any future lawsuits is uncertain, and these matters could require significant management and financial resources. Unfavorable outcomes and significant judgments, settlements and legal expenses in litigation related to any future securities law claims could have material adverse impacts on our business, financial condition, results of operations, cash flows and the trading price of our common stock.

We are leveraged financially, which could adversely affect our ability to adjust our business to respond to competitive pressures and to obtain sufficient funds to satisfy our future research and development needs, to protect and enforce our intellectual property, and to meet other needs.

We have material indebtedness. In August 2013, we issued $138.0 million aggregate principal amount of our 2018 Notes which remain outstanding. The degree to which we are leveraged could have negative consequences, including, but not limited to, the following:

• we may be more vulnerable to economic downturns, less able to withstand competitive pressures and less flexible in responding to changing business and economic conditions;

• our ability to obtain additional financing in the future for working capital, capital expenditures, acquisitions, litigation, general corporate or other purposes may be limited;

• a substantial portion of our cash flows from operations in the future may be required for the payment of the principal amount of our existing indebtedness when it becomes due at maturity in August 2018; and

• we may be required to make cash payments upon any conversion of the 2018 Notes, which would reduce our cash on hand.

A failure to comply with the covenants and other provisions of our debt instruments could result in events of default under such instruments, which could permit acceleration of all of our outstanding 2018 Notes. Any required repurchase of the 2018 Notes as a result of a fundamental change or acceleration of the 2018 Notes would reduce our cash on hand such that we would not have those funds available for use in our business.

If we are at any time unable to generate sufficient cash flows from operations to service our indebtedness when payment is due, we may be required to attempt to renegotiate the terms of the instruments relating to the indebtedness, seek to refinance all or a portion of the indebtedness or obtain additional financing. There can be no assurance that we will be able to successfully renegotiate such terms, that any such refinancing would be possible or that any additional financing could be obtained on terms that are favorable or acceptable to us.

Compliance with changing regulation of corporate governance and public disclosure may result in additional expenses.

Changing laws, regulations and standards relating to corporate governance and public disclosure have historically created uncertainty for companies such as ours. Any new or changed laws, regulations and standards are subject to varying interpretations due to their lack of specificity, and as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices.

Our certificate of incorporation and bylaws, Delaware law, our outstanding convertible notes and certain other agreements contain provisions that could discourage transactions resulting in a change in control, which may negatively affect the market price of our common stock.

Our certificate of incorporation, our bylaws and Delaware law contain provisions that might enable our management to discourage, delay or prevent a change in control. In addition, these provisions could limit the price that investors would be willing to pay in the future for shares of our common stock. Pursuant to such provisions:

• our board of directors is authorized, without prior stockholder approval, to create and issue preferred stock, commonly referred to as “blank check” preferred stock, with rights senior to those of common stock, which means that a stockholder rights plan could be implemented by our board;

• our board of directors is staggered into two classes, only one of which is elected at each annual meeting;

• stockholder action by written consent is prohibited;

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• nominations for election to our board of directors and the submission of matters to be acted upon by stockholders at a meeting are subject to advance notice requirements;

• certain provisions in our bylaws and certificate of incorporation such as notice to stockholders, the ability to call a stockholder meeting, advance notice requirements and action of stockholders by written consent may only be amended with the approval of stockholders holding 66 2/3% of our outstanding voting stock;

• our stockholders have no authority to call special meetings of stockholders; and

• our board of directors is expressly authorized to make, alter or repeal our bylaws.

We are also subject to Section 203 of the Delaware General Corporation Law, which provides, subject to enumerated exceptions, that if a person acquires 15% or more of our outstanding voting stock, the person is an “interested stockholder” and may not engage in any “business combination” with us for a period of three years from the time the person acquired 15% or more of our outstanding voting stock.

Certain provisions of our outstanding 2018 Notes could make it more difficult or more expensive for a third party to acquire us. Upon the occurrence of certain transactions constituting a fundamental change, holders of such 2018 Notes will have the right, at their option, to require us to repurchase, at a cash repurchase price equal to 100% of the principal amount plus accrued and unpaid interest on such 2018 Notes, all or a portion of their 2018 Notes. We may also be required to increase the conversion rate of such 2018 Notes in the event of certain fundamental changes.

Unanticipated changes in our tax rates or in the tax laws and regulations could expose us to additional income tax liabilities which could affect our operating results and financial condition.

We are subject to income taxes in both the United States and various foreign jurisdictions. Significant judgment is required in determining our worldwide provision for income taxes and, in the ordinary course of business, there are many transactions and calculations where the ultimate tax determination is uncertain. Our effective tax rate could be adversely affected by changes in the mix of earnings in countries with differing statutory tax rates, changes in the valuation of deferred tax assets and liabilities, changes in tax laws and regulations as well as other factors. Our tax determinations are regularly subject to audit by tax authorities and developments in those audits could adversely affect our income tax provision, and we are currently undergoing such audits of certain of our tax returns. Although we believe that our tax estimates are reasonable, the final determination of tax audits or tax disputes may be different from what is reflected in our historical income tax provisions which could affect our operating results.

Litigation, Regulation and Business Risks Related to our Intellectual Property

We have in the past, and may in the future, become engaged in litigation stemming from our efforts to protect and enforce our patents and intellectual property and make other claims, which could adversely affect our intellectual property rights, distract our management and cause substantial expenses and declines in our revenue and stock price.

We seek to diligently protect our intellectual property rights and will continue to do so. While we are not currently involved in intellectual property litigation, any future litigation, whether or not determined in our favor or settled by us, would be expected to be costly, may cause delays applicable to our business (including delays in negotiating licenses with other actual or potential customers), would be expected to tend to discourage future design partners, would tend to impair adoption of our existing technologies and would divert the efforts and attention of our management and technical personnel from other business operations. In addition, we may be unsuccessful in any litigation if we have difficulty obtaining the cooperation of former employees and agents who were involved in our business during the relevant periods related to our litigation and are now needed to assist in cases or testify on our behalf. Furthermore, any adverse determination or other resolution in litigation could result in our losing certain rights beyond the rights at issue in a particular case, including, among other things: our being effectively barred from suing others for violating certain or all of our intellectual property rights; our patents being held invalid or unenforceable or not infringed; our being subjected to significant liabilities; our being required to seek licenses from third parties; our being prevented from licensing our patented technology; or our being required to renegotiate with current customers on a temporary or permanent basis.

From time to time, we are subject to proceedings by government agencies that may result in adverse determinations against us and could cause our revenue to decline substantially.

An adverse resolution by or with a governmental agency could result in severe limitations on our ability to protect and license our intellectual property, and could cause our revenue to decline substantially. Third parties have and may attempt to use adverse findings by a government agency to limit our ability to enforce or license our patents in private litigations, to challenge or otherwise act against us with respect to such government agency proceedings.

Further, third parties have sought and may seek review and reconsideration of the patentability of inventions claimed in certain of our patents by the U.S. Patent and Trademark Office (“USPTO”) and/or the European Patent Office (the “EPO”).

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Any re-examination proceedings may be reviewed by the USPTO's Patent Trial and Appeal Board (“PTAB”). The PTAB and the related former Board of Patent Appeals and Interferences have previously issued decisions in a few cases, finding some challenged claims of Rambus' patents to be valid, and others to be invalid. Decisions of the PTAB are subject to further USPTO proceedings and/or appeal to the Court of Appeals for the Federal Circuit. A final adverse decision, not subject to further review and/or appeal, could invalidate some or all of the challenged patent claims and could also result in additional adverse consequences affecting other related U.S. or European patents, including in any intellectual property litigation. If a sufficient number of such patents are impaired, our ability to enforce or license our intellectual property would be significantly weakened and could cause our revenue to decline substantially.

The pendency of any governmental agency acting as described above may impair our ability to enforce or license our patents or collect royalties from existing or potential customers, as any litigation opponents may attempt to use such proceedings to delay or otherwise impair any pending cases and our existing or potential customers may await the final outcome of any proceedings before agreeing to new licenses or to paying royalties.

Litigation or other third-party claims of intellectual property infringement could require us to expend substantial resources and could prevent us from developing or licensing our technology on a cost-effective basis.

Our research and development programs are in highly competitive fields in which numerous third parties have issued patents and patent applications with claims closely related to the subject matter of our programs. We have also been named in the past, and may in the future be named, as a defendant in lawsuits claiming that our technology infringes upon the intellectual property rights of third parties. As we develop additional products and technology, we may face claims of infringement of various patents and other intellectual property rights by third parties. In the event of a third-party claim or a successful infringement action against us, we may be required to pay substantial damages, to stop developing and licensing our infringing technology, to develop non-infringing technology, and to obtain licenses, which could result in our paying substantial royalties or our granting of cross licenses to our technologies. We may not be able to obtain licenses from other parties at a reasonable cost, or at all, which could cause us to expend substantial resources, or result in delays in, or the cancellation of, new products. Moreover, customers and/or suppliers of our products may seek indemnification for alleged infringement of intellectual property rights.  We could be liable for direct and consequential damages and expenses including attorneys’ fees. A future obligation to indemnify our customers and/or suppliers may harm our business, financial condition and operating results.

If we are unable to protect our inventions successfully through the issuance and enforcement of patents, our operating results could be adversely affected.

We have an active program to protect our proprietary inventions through the filing of patents. There can be no assurance, however, that:

• any current or future U.S. or foreign patent applications will be approved and not be challenged by third parties;

• our issued patents will protect our intellectual property and not be challenged by third parties;

• the validity of our patents will be upheld;

• our patents will not be declared unenforceable;

• the patents of others will not have an adverse effect on our ability to do business;

• Congress or the U.S. courts or foreign countries will not change the nature or scope of rights afforded patents or patent owners or alter in an adverse way the process for seeking or enforcing patents;

• changes in law will not be implemented, or changes in interpretation of such laws will occur, that will affect our ability to protect and enforce our patents and other intellectual property;

• new legal theories and strategies utilized by our competitors will not be successful;

• others will not independently develop similar or competing chip interfaces or design around any patents that may be issued to us; or

• factors such as difficulty in obtaining cooperation from inventors, pre-existing challenges or litigation, or license or other contract issues will not present additional challenges in securing protection with respect to patents and other intellectual property that we acquire.

If any of the above were to occur, our operating results could be adversely affected.

Furthermore, recent patent reform legislation, such as the Leahy-Smith America Invents Act, could increase the uncertainties and costs surrounding the prosecution of any patent applications and the enforcement or defense of our licensed patents. The federal courts, the USPTO, the Federal Trade Commission, and the U.S. International Trade Commission have also recently taken certain actions and issued rulings that have been viewed as unfavorable to patentees. While we cannot predict what form any new patent reform laws or regulations may ultimately take, or what impact recent or future reforms may have on our business, any laws or regulations that restrict or negatively impact our ability to enforce our patent rights against third parties could have a material adverse effect on our business.

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In addition, our patents will continue to expire according to their terms, with expiration dates ranging from 2017 to 2038. Our failure to continuously develop or acquire successful innovations and obtain patents on those innovations could significantly harm our business, financial condition, results of operations, or cash flows.

Our inability to protect and own the intellectual property we create would cause our business to suffer.

We rely primarily on a combination of license, development and nondisclosure agreements, trademark, trade secret and copyright law and contractual provisions to protect our non-patentable intellectual property rights. If we fail to protect these intellectual property rights, our customers and others may seek to use our technology without the payment of license fees and royalties, which could weaken our competitive position, reduce our operating results and increase the likelihood of costly litigation. The growth of our business depends in part on the use of our intellectual property in the products of third party manufacturers, and our ability to enforce intellectual property rights against them to obtain appropriate compensation. In addition, effective trade secret protection may be unavailable or limited in certain foreign countries. Although we intend to protect our rights vigorously, if we fail to do so, our business will suffer.

Effective protection of trademarks, copyrights, domain names, patent rights, and other intellectual property rights is expensive and difficult to maintain, both in terms of application and maintenance costs, as well as the costs of defending and enforcing those rights. The efforts we have taken to protect our intellectual property rights may not be sufficient or effective. Our intellectual property rights may be infringed, misappropriated, or challenged, which could result in them being narrowed in scope or declared invalid or unenforceable. In addition, the laws or practices of certain countries do not protect our proprietary rights to the same extent as do the laws of the United States. Significant impairments of our intellectual property rights, and limitations on our ability to assert our intellectual property rights against others, could have a material and adverse effect on our business.

Third parties may claim that our products or services infringe on their intellectual property rights, exposing us to litigation that, regardless of merit, may be costly to defend.

Our success and ability to compete are also dependent upon our ability to operate without infringing upon the patent, trademark and other intellectual property rights of others. Third parties may claim that our current or future products or services infringe upon their intellectual property rights. Any such claim, with or without merit, could be time consuming, divert management’s attention from our business operations and result in significant expenses. We cannot assure you that we would be successful in defending against any such claims. In addition, parties making these claims may be able to obtain injunctive or other equitable relief affecting our ability to license the products that incorporate the challenged intellectual property. As a result of such claims, we may be required to obtain licenses from third parties, develop alternative technology or redesign our products. We cannot be sure that such licenses would be available on terms acceptable to us, if at all. If a successful claim is made against us and we are unable to develop or license alternative technology, our business, financial condition, operating results and cash flows could be materially adversely affected.

We rely upon the accuracy of our customers' recordkeeping, and any inaccuracies or payment disputes for amounts owed to us under our licensing agreements may harm our results of operations.

Many of our license agreements require our customers to document the manufacture and sale of products that incorporate our technology and report this data to us on a quarterly basis. While licenses with such terms give us the right to audit books and records of our customers to verify this information, audits rarely are undertaken because they can be expensive, time consuming, and potentially detrimental to our ongoing business relationship with our customers. Therefore, we typically rely on the accuracy of the reports from customers without independently verifying the information in them. Our failure to audit our customers' books and records may result in our receiving more or less royalty revenue than we are entitled to under the terms of our license agreements. If we conduct royalty audits in the future, such audits may trigger disagreements over contract terms with our customers and such disagreements could hamper customer relations, divert the efforts and attention of our management from normal operations and impact our business operations and financial condition.

Any dispute regarding our intellectual property may require us to indemnify certain customers, the cost of which could severely hamper our business operations and financial condition.

In any potential dispute involving our patents or other intellectual property, our customers could also become the target of litigation. While we generally do not indemnify our customers, some of our agreements provide for indemnification, and some require us to provide technical support and information to a customer that is involved in litigation involving use of our technology. In addition, we may be exposed to indemnification obligations, risks and liabilities that were unknown at the time of acquisitions, including with respect to our acquisitions of SCS, the assets of the Snowbush IP group and the Memory Interconnect Business, and we may agree to indemnify others in the future. Any of these indemnification and support

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obligations could result in substantial and material expenses. In addition to the time and expense required for us to indemnify or supply such support to our customers, a customer's development, marketing and sales of licensed semiconductors, lighting, mobile communications and data security technologies could be severely disrupted or shut down as a result of litigation, which in turn could severely hamper our business operations and financial condition as a result of lower or no royalty payments.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Share Repurchase Program

On January 21, 2015, our Board approved a share repurchase program authorizing the repurchase of up to an aggregate of 20.0 million shares. Share repurchases under the plan may be made through the open market, established plans or privately negotiated transactions in accordance with all applicable securities laws, rules, and regulations. There is no expiration date applicable to the plan. On May 1, 2017, as part of the broader share repurchase program previously authorized by our Board on January 21, 2015, we initiated an accelerated share repurchase program with Barclays Bank PLC. After giving effect to such accelerated share repurchase program, detailed in the table below, we had remaining authorization to repurchase approximately 8.3 million shares.

We record stock repurchases as a reduction to stockholders’ equity. We record a portion of the purchase price of the repurchased shares as an increase to accumulated deficit when the price of the shares repurchased exceeds the average original proceeds per share received from the issuance of common stock.

Period	Total Number of Shares Purchased	Average Price Paid per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet be Purchased Under the Plans or Programs
Cumulative shares repurchased as of December 31, 2016	8,548,361	$11.70	8,548,361	11,451,639
May 1, 2017 - May 31, 2017 (1)	3,187,251	To be determined at the end of the current accelerated share repurchase program	3,187,251	8,264,388
Cumulative shares repurchased as of September 30, 2017	11,735,612		11,735,612

(1) In the second quarter of 2017, we entered into an accelerated share repurchase program with Barclays Bank PLC to repurchase an aggregate of $50.0 million of our common stock. We made an upfront payment of $50.0 million pursuant to the accelerated share repurchase program and received an initial delivery of 3.2 million shares which were retired and recorded as a $40.0 million reduction to stockholders' equity. The remaining $10.0 million of the initial payment was recorded as a reduction to stockholders’ equity as an unsettled forward contract indexed to our stock. The number of shares to be ultimately purchased by us will be determined based on the volume weighted average price of the common stock during the terms of the transaction, minus an agreed upon discount between the parties. The program is expected to be completed by November 2017. See Note 11, “Stockholders' Equity,” of Notes to Unaudited Condensed Consolidated Financial Statements of this Form 10-Q for further discussion.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not Applicable.

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Item 5. Other Information

None.

Item 6. Exhibits

A list of exhibits to this Quarterly Report on Form 10-Q is set forth on the Exhibit Index immediately preceding such exhibits and is incorporated herein by reference.

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SIGNATURE

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 thereunto duly authorized.

	RAMBUS INC.
Date: October 27, 2017	By:	/s/ Rahul Mathur
		Rahul Mathur
		Senior Vice President, Finance and Chief Financial Officer
		(Principal Financial Officer and Duly Authorized Officer)

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INDEX TO EXHIBITS

Exhibit Number	Description of Document
10.1 (1)	Employment Agreement between the Company and Ronald Black, dated as of July 17, 2017.
31.1	Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Principal Financial Officer, pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certification of Principal Executive Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	Certification of Principal Financial Officer, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document

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* The certifications furnished in Exhibit 32.1 and 32.2 hereto are deemed to accompany this Quarterly Report on Form 10-Q and will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended. Such certifications will not be deemed to be incorporated by reference into any filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except to the extent that the registrant specifically incorporates it by reference.

(1) Incorporated by reference to the Form 8-K filed on July 18, 2017.

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