Quarterly Report (10-q)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☑	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended July 3, 2021

☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _________to _________

Commission file number: 000-29823

SILICON LABORATORIES INC.

(Exact name of registrant as specified in its charter)

Delaware		74-2793174
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)


400 West Cesar Chavez, Austin, Texas		78701
(Address of principal executive offices)		(Zip Code)

(512) 416-8500

(Registrant’s telephone number, including area code)

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

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, $0.0001 par value		SLAB		The NASDAQ Stock Market LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Sections 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

☑ Yes ◻ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

☑ Yes ◻ No

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

Large accelerated filer þ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

☐ Yes ☑ No

As of July 20, 2021, 44,764,087 shares of common stock of Silicon Laboratories Inc. were outstanding.

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Part I. Financial Information		Page Number

Item 1.	Financial Statements (Unaudited):

	Condensed Consolidated Balance Sheets at July 3, 2021 and January 2, 2021	3

	Condensed Consolidated Statements of Operations for the three and six months ended July 3, 2021 and July 4, 2020	4

	Condensed Consolidated Statements of Comprehensive Income for the three and six months ended July 3, 2021 and July 4, 2020	5

	Condensed Consolidated Statements of Changes in Stockholders’ Equity for the three and six months ended July 3, 2021 and July 4, 2020	6

	Condensed Consolidated Statements of Cash Flows for the six months ended July 3, 2021 and July 4, 2020	7

	Notes to Condensed Consolidated Financial Statements	8

Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21

Item 3.	Quantitative and Qualitative Disclosures About Market Risk	29

Item 4.	Controls and Procedures	30

Part II. Other Information

Item 1.	Legal Proceedings	30

Item 1A.	Risk Factors	30

Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	44

Item 3.	Defaults Upon Senior Securities	44

Item 4.	Mine Safety Disclosures	44

Item 5.	Other Information	44

Item 6.	Exhibits	45

Cautionary Statement

Except for the historical financial information contained herein, the matters discussed in this report on Form 10-Q (as well as documents incorporated herein by reference) may be considered “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such forward-looking statements include declarations regarding the intent, belief or current expectations of Silicon Laboratories Inc. and its management and may be signified by the words “believe,” “estimate,” “expect,” “intend,” “anticipate,” “plan,” “project,” “will” or similar language. You are cautioned that any such forward-looking statements are not guarantees of future performance and involve a number of risks and uncertainties. Actual results could differ materially from those indicated by such forward-looking statements. Factors that could cause or contribute to such differences include those discussed under “Risk Factors” and elsewhere in this report. Silicon Laboratories disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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Part I. Financial Information

Item 1. Financial Statements

Silicon Laboratories Inc.

Condensed Consolidated Balance Sheets

(In thousands, except per share data)

(Unaudited)


	July 3,		January 2,
	2021		2021
Assets
Current assets:
Cash and cash equivalents	$	303,084	$	202,720
Short-term investments		314,183		521,963
Accounts receivable, net		99,546		95,169
Inventories		52,269		47,861
Prepaid expenses and other current assets		94,378		87,103
Current assets held for sale		297,543		21,005
Total current assets		1,161,003		975,821
Property and equipment, net		139,362		135,803
Goodwill		376,389		376,389
Other intangible assets, net		140,581		163,483
Other assets, net		78,667		76,675
Non-current assets held for sale		—		265,316
Total assets	$	1,896,002	$	1,993,487
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	70,820	$	54,949
Current portion of convertible debt, net		—		134,480
Deferred revenue and returns liability		12,811		12,986
Other current liabilities		70,552		81,650
Current liabilities held for sale		699		433
Total current liabilities		154,882		284,498
Convertible debt, net		439,654		428,945
Other non-current liabilities		73,712		79,752
Non-current liabilities held for sale		—		451
Total liabilities		668,248		793,646
Commitments and contingencies
Stockholders’ equity:
Preferred stock – $0.0001 par value; 10,000 shares authorized; no shares issued		—		—
Common stock – $0.0001 par value; 250,000 shares authorized; 44,764 and 43,925 shares issued and outstanding at July 3, 2021 and January 2, 2021, respectively		4		4
Additional paid-in capital		200,716		204,359
Retained earnings		1,027,105		993,664
Accumulated other comprehensive income (loss)		(71)		1,814
Total stockholders' equity		1,227,754		1,199,841
Total liabilities and stockholders’ equity	$	1,896,002	$	1,993,487

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

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Silicon Laboratories Inc.

Condensed Consolidated Statements of Operations

(In thousands, except per share data)

(Unaudited)


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Revenues	$	169,492	$	114,350	$	327,349	$	232,368
Cost of revenues		73,194		47,771		139,297		96,942
Gross profit		96,298		66,579		188,052		135,426
Operating expenses:
Research and development		64,832		57,992		128,847		115,702
Selling, general and administrative		42,953		40,350		85,407		84,802
Operating expenses		107,785		98,342		214,254		200,504
Operating loss		(11,487)		(31,763)		(26,202)		(65,078)
Other income (expense):
Interest income and other, net		647		3,267		3,522		6,518
Interest expense		(6,486)		(11,778)		(17,810)		(17,319)
Loss from continuing operations before income taxes		(17,326)		(40,274)		(40,490)		(75,879)
Provision (benefit) for income taxes		1,165		(4,229)		3,157		(8,443)
Loss from continuing operations		(18,491)		(36,045)		(43,647)		(67,436)
Income from discontinued operations, net of income taxes		38,423		34,222		77,088		67,857

Net income (loss)	$	19,932	$	(1,823)	$	33,441	$	421

Basic earnings (loss) per share:
Continuing operations	$	(0.41)	$	(0.82)	$	(0.98)	$	(1.54)
Net income	$	0.44	$	(0.04)	$	0.75	$	0.01

Diluted earnings (loss) per share:
Continuing operations	$	(0.41)	$	(0.82)	$	(0.98)	$	(1.54)
Net income	$	0.44	$	(0.04)	$	0.73	$	0.01

Weighted-average common shares outstanding:
Basic		44,803		43,761		44,481		43,699
Diluted		45,756		43,761		45,794		44,219

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

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Silicon Laboratories Inc.

Condensed Consolidated Statements of Comprehensive Income

(In thousands)

(Unaudited)


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Net income (loss)	$	19,932	$	(1,823)	$	33,441	$	421
Other comprehensive income (loss), before tax
Net changes to available-for-sale securities
Unrealized gains (losses) arising during the period		(564)		3,068		(1,400)		2,598
Reclassification for gains included in net income (loss)		(39)		(121)		(397)		(222)

Net changes to cash flow hedges
Unrealized gains (losses) arising during the period		388		496		(269)		(311)
Reclassification for (gains) losses included in net income (loss)		(160)		282		(320)		423

Other comprehensive income (loss), before tax		(375)		3,725		(2,386)		2,488

Provision (benefit) for income taxes		(78)		783		(501)		523

Other comprehensive income (loss)		(297)		2,942		(1,885)		1,965

Comprehensive income	$	19,635	$	1,119	$	31,556	$	2,386

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

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Silicon Laboratories Inc.

Condensed Consolidated Statements of Changes in Stockholders’ Equity

(In thousands)

(Unaudited)


				Additional				Accumulated Other		Total
		Common		Paid-In		Retained		Comprehensive		Stockholders’
Three Months Ended July 3, 2021	Shares	Stock		Capital		Earnings		Income (Loss)		Equity
Balance as of April 3, 2021	44,749	$	4	$	199,576	$	1,007,173	$	226	$	1,206,979
Net income	—		—		—		19,932		—		19,932
Other comprehensive loss	—		—		—		—		(297)		(297)
Stock issuances, net of shares withheld for taxes	157		—		6,473		—		—		6,473
Repurchases of common stock	(142)		—		(18,982)		—		—		(18,982)
Stock-based compensation	—		—		13,649		—		—		13,649
Balance as of July 3, 2021	44,764	$	4	$	200,716	$	1,027,105	$	(71)	$	1,227,754


				Additional				Accumulated Other		Total
		Common		Paid-In		Retained		Comprehensive		Stockholders’
Three Months Ended July 4, 2020	Shares	Stock		Capital		Earnings		Income (Loss)		Equity
Balance as of April 4, 2020	43,670	$	4	$	116,553	$	983,377	$	(331)	$	1,099,603
Net loss	—		—		—		(1,823)		—		(1,823)
Other comprehensive income	—		—		—		—		2,942		2,942
Stock issuances, net of shares withheld for taxes	126		—		7,295		—		—		7,295
Stock-based compensation	—		—		14,458		—		—		14,458
Convertible debt issuance	—		—		35,171		—		—		35,171
Balance as of July 4, 2020	43,796	$	4	$	173,477	$	981,554	$	2,611	$	1,157,646


				Additional				Accumulated Other		Total
		Common		Paid-In		Retained		Comprehensive		Stockholders’
Six Months Ended July 3, 2021	Shares	Stock		Capital		Earnings		Income (Loss)		Equity
Balance as of January 2, 2021	43,925	$	4	$	204,359	$	993,664	$	1,814	$	1,199,841
Net income	—		—		—		33,441		—		33,441
Other comprehensive loss	—		—		—		—		(1,885)		(1,885)
Stock issuances, net of shares withheld for taxes	453		—		(11,344)		—		—		(11,344)
Repurchases of common stock	(142)		—		(18,982)		—		—		(18,982)
Stock-based compensation	—		—		27,431		—		—		27,431
Convertible debt activity	528		—		(748)		—		—		(748)
Balance as of July 3, 2021	44,764	$	4	$	200,716	$	1,027,105	$	(71)	$	1,227,754


				Additional				Accumulated Other		Total
		Common		Paid-In		Retained		Comprehensive		Stockholders’
Six Months Ended July 4, 2020	Shares	Stock		Capital		Earnings		Income (Loss)		Equity
Balance as of December 28, 2019	43,496	$	4	$	133,793	$	980,608	$	646	$	1,115,051
Cumulative effect of adoption of accounting standard	—		—		—		525		—		525
Net income	—		—		—		421		—		421
Other comprehensive income	—		—		—		—		1,965		1,965
Stock issuances, net of shares withheld for taxes	509		—		(8,999)		—		—		(8,999)
Repurchases of common stock	(209)		—		(16,287)		—		—		(16,287)
Stock-based compensation	—		—		29,799		—		—		29,799
Convertible debt issuance	—		—		35,171		—		—		35,171
Balance as of July 4, 2020	43,796	$	4	$	173,477	$	981,554	$	2,611	$	1,157,646

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

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Silicon Laboratories Inc.

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)


	Six Months Ended
	July 3,		July 4,
	2021		2020
Operating Activities
Net income	$	33,441	$	421
Adjustments to reconcile net income to cash provided by operating activities of continuing operations:
Income from discontinued operations, net of income taxes		(77,088)		(67,857)
Depreciation of property and equipment		8,184		7,711
Amortization of intangible assets and other assets		22,902		20,486
Amortization of debt discount and debt issuance costs		11,822		8,359
Loss on extinguishment of convertible debt		3,370		3,685
Stock-based compensation expense		22,620		24,461
Deferred income taxes		(5,644)		1,177
Changes in operating assets and liabilities:
Accounts receivable		(4,377)		7,070
Inventories		(4,447)		8,021
Prepaid expenses and other assets		(5,489)		22,976
Accounts payable		14,711		(769)
Other current liabilities and income taxes		(10,626)		(15,480)
Deferred revenue and returns liability		(175)		6,678
Other non-current liabilities		(3,464)		1,146
Net cash provided by operating activities of continuing operations		5,740		28,085

Investing Activities
Purchases of marketable securities		(80,426)		(199,347)
Sales and maturities of marketable securities		286,649		255,112
Purchases of property and equipment		(10,779)		(9,051)
Purchases of other assets		(578)		(820)
Acquisition of business, net of cash acquired		—		(316,809)
Net cash provided by (used in) investing activities of continuing operations		194,866		(270,915)

Financing Activities
Proceeds from issuance of debt		—		845,000
Payments on debt		(140,572)		(597,446)
Repurchases of common stock		(18,982)		(16,287)
Payment of taxes withheld for vested stock awards		(19,732)		(16,756)
Proceeds from the issuance of common stock		8,388		7,757
Net cash provided by (used in) financing activities of continuing operations		(170,898)		222,268

Discontinued Operations
Operating activities		72,674		72,418
Investing activities		(2,018)		(1,343)
Net cash provided by discontinued operations		70,656		71,075

Increase in cash and cash equivalents		100,364		50,513
Cash and cash equivalents at beginning of period		202,720		227,146
Cash and cash equivalents at end of period	$	303,084	$	277,659

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements

(Unaudited)

1. Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

The Condensed Consolidated Financial Statements included herein are unaudited; however, they contain all normal recurring accruals and adjustments which, in the opinion of management, are necessary to present fairly the condensed consolidated financial position of Silicon Laboratories Inc. and its subsidiaries (collectively, the “Company”) at July 3, 2021 and January 2, 2021, the condensed consolidated results of its operations for the three and six months ended July 3, 2021 and July 4, 2020, the Condensed Consolidated Statements of Comprehensive Income for the three and six months ended July 3, 2021 and July 4, 2020, the Condensed Consolidated Statements of Changes in Stockholders’ Equity for the three and six months ended July 3, 2021 and July 4, 2020, and the Condensed Consolidated Statements of Cash Flows for the six months ended July 3, 2021 and July 4, 2020. All intercompany balances and transactions have been eliminated in consolidation. The condensed consolidated results of operations for the three and six months ended July 3, 2021 are not necessarily indicative of the results to be expected for the full year.

The accompanying unaudited Condensed Consolidated Financial Statements do not include certain footnotes and financial presentations normally required under U.S. generally accepted accounting principles (GAAP). Therefore, these Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and notes thereto for the year ended January 2, 2021, included in the Company’s Form 10-K filed with the Securities and Exchange Commission (SEC) on February 3, 2021.

The Company prepares financial statements on a 52- or 53-week fiscal year that ends on the Saturday closest to December 31. Fiscal 2021 will have 52 weeks. Fiscal 2020 had 53 weeks with the extra week occurring in the first quarter of the year. In a 52-week year, each fiscal quarter consists of 13 weeks.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Among the significant estimates affecting the financial statements are those related to inventories, goodwill, acquired intangible assets, other long-lived assets, revenue recognition, stock-based compensation and income taxes. Actual results could differ from those estimates, and such differences could be material to the financial statements.

Revenue Recognition

Revenue is recognized when control of the promised goods or services is transferred to the customer, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Substantially all of the Company’s contracts with customers contain a single performance obligation, the sale of mixed-signal integrated circuit (IC) products. This performance obligation is satisfied when control of the product is transferred to the customer, which typically occurs upon delivery. Unsatisfied performance obligations primarily represent contracts for products with future delivery dates. The Company has opted to not disclose the amount of unsatisfied performance obligations as these contracts have original expected durations of less than one year.

The transaction price reflects the Company’s expectations about the consideration it will be entitled to receive from the customer and may include fixed or variable amounts. Variable consideration primarily includes sales made to distributors under agreements allowing certain rights of return, referred to as stock rotation, and credits issued to the distributor due to price protection. The Company estimates variable consideration at the most likely amount to which it expects to be entitled. The estimate is based on information available to the Company, including recent sales activity and pricing data. The Company applies a constraint to its variable consideration estimate which considers both the likelihood of a return and the amount of a potential price concession. Variable consideration that does not meet revenue recognition criteria is deferred. The Company records a right of return asset in prepaid expenses and other current assets for the costs of distributor inventory not meeting revenue recognition criteria. A corresponding deferred revenue and returns liability amount is recorded for unrecognized revenue associated with such costs. The Company’s products carry a one-year replacement warranty. Payments are typically due within 30 days of invoicing and do not include a significant financing component.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

1. Significant Accounting Policies (Continued)

Recent Accounting Pronouncements

In August 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40). This ASU simplifies the accounting for certain convertible instruments, amends the guidance on derivative scope exceptions for contracts in an entity’s own equity and requires the use of the if-converted method for calculating diluted earnings per share. The ASU removes separation models for convertible debt with a cash conversion feature. Such convertible instruments will be accounted for as a single liability measured at amortized cost, as long as no other features require bifurcation and recognition as derivatives. This ASU is effective for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years, using one of two retrospective transition methods. Early adoption is permitted for fiscal periods beginning after December 15, 2020. The Company expects the primary impacts of this new standard will be to increase the carrying value of its convertible debt by approximately $78.5 million, with an offsetting reduction in additional paid-in capital, and reduce its reported interest expense. In addition, should the Company be required to use the if-converted method for calculating diluted earnings per share, the number of shares used in such calculation could potentially increase. The Company will continue to evaluate the effect that the adoption of this ASU will have on its financial statements.

2. Discontinued Operations

On April 22, 2021, the Company entered into an Asset Purchase Agreement pursuant to which Skyworks Solutions, Inc. agreed to acquire certain assets, rights, and properties, and assume certain liabilities, comprising the Company’s infrastructure and automotive business for $2.75 billion in cash. The transaction closed on July 26, 2021. The financial results of the infrastructure and automotive business, which are readily distinguishable from other components of the Company, have been presented as discontinued operations in the Condensed Consolidated Financial Statements.

The following table presents the financial results of the infrastructure and automotive business (the “discontinued operations”) in the Company’s condensed consolidated statements of operations (in thousands):


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Revenues	$	108,064	$	93,183	$	205,712	$	190,042
Costs of revenues and operating expenses		70,143		54,352		130,917		113,948
Income from discontinued operations before income taxes		37,921		38,831		74,795		76,094
Provision (benefit) for income taxes		(502)		4,609		(2,293)		8,237
Income from discontinued operations	$	38,423	$	34,222	$	77,088	$	67,857

Income from discontinued operations per share:
Basic	$	0.86	$	0.78	$	1.73	$	1.55
Diluted	$	0.84	$	0.78	$	1.68	$	1.53

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

2. Discontinued Operations (Continued)

The following table summarizes the assets and liabilities of the infrastructure and automotive business held for sale (in thousands):


	July 3,		January 2,
	2021		2021
Assets
Inventories	$	30,176	$	18,801
Prepaid expenses and other current assets		1,876		2,204
Goodwill		255,543		255,543
Other assets		9,947		9,772
Total assets held for sale	$	297,543	$	286,321

Liabilities
Other current liabilities	$	699	$	433
Other non-current liabilities		—		451
Total liabilities held for sale	$	699	$	884

Continuing Involvement

In connection with the closing of the sale, the Company entered into certain ancillary agreements with Skyworks, including a Transition Services Agreement ("TSA"). Through the TSA, the Company will sublease certain premises to Skyworks and provide various temporary support services for three to eighteen months, depending on the service provided. Although the services provided under the TSA will generate continuing cash flows between the Company and Skyworks for the duration of the TSA, the amounts are not expected to be material to the ongoing operations of either entity. In addition, the Company has no contractual ability through the TSA or any other agreement to significantly influence the operating or financial policies of Skyworks.

3. Earnings (Loss) Per Share

The following table sets forth the computation of basic and diluted loss per share from continuing operations (in thousands, except per share data):


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Loss from continuing operations	$	(18,491)	$	(36,045)	$	(43,647)	$	(67,436)

Shares used in computing basic loss per share		44,803		43,761		44,481		43,699

Effect of dilutive securities:
Stock-based awards and convertible debt		—		—		—		—
Shares used in computing diluted loss per share		44,803		43,761		44,481		43,699

Loss per share:
Basic	$	(0.41)	$	(0.82)	$	(0.98)	$	(1.54)
Diluted	$	(0.41)	$	(0.82)	$	(0.98)	$	(1.54)

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

3. Earnings (Loss) Per Share (Continued)

For the three months ended July 3, 2021 and July 4, 2020 and the six months ended July 3, 2021 and July 4, 2020, approximately 0.0 million, 0.4 million, 0.0 million and 0.3 million shares, respectively, consisting primarily of restricted stock awards (RSUs) and market stock awards (MSUs) granted under our 2009 Stock Incentive Plan, were not included in the diluted loss per share calculation since the shares were anti-dilutive. Further, diluted shares for the three months ended July 3, 2021 and July 4, 2020 and the six months ended July 3, 2021 and July 4, 2020 excluded 1.0 million, 0.3 million, 1.3 million and 0.5 million shares, respectively, due to the Company’s loss from continuing operations for the periods.

The Company intends to settle the principal amount of its convertible senior notes in cash and any excess value in shares in the event of a conversion. Accordingly, shares issuable upon conversion of the principal amount using the treasury stock method have been excluded from the calculation of diluted earnings per share. If the market value of the notes under certain prescribed conditions exceeds the conversion amount, the excess is included in the denominator for the computation of diluted earnings per share using the treasury stock method. For the three months ended July 3, 2021 and July 4, 2020 and the six months ended July 3, 2021 and July 4, 2020, approximately 0.5 million, 0.0 million, 0.8 million and 0.2 million shares, respectively, were included in the denominator for the calculation of diluted earnings per share. See Note 8, Debt, to the Condensed Consolidated Financial Statements for additional information.

4. Fair Value of Financial Instruments

The fair values of the Company’s financial instruments are recorded using a hierarchical disclosure framework based upon the level of subjectivity of the inputs used in measuring assets and liabilities. The three levels are described below:

Level 1 – Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date.

Level 2 – Inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.

Level 3 – Inputs are unobservable for the asset or liability and are developed based on the best information available in the circumstances, which might include the Company’s own data.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

4. Fair Value of Financial Instruments (Continued)

The following summarizes the valuation of the Company’s financial instruments (in thousands). The tables do not include either cash on hand or assets and liabilities that are measured at historical cost or any basis other than fair value.


	Fair Value Measurements
	at July 3, 2021 Using
	Quoted Prices in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
Description	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash equivalents:
Money market funds	$	161,586	$	—	$	—	$	161,586
Corporate debt securities		—		—		—		—
Total cash equivalents	$	161,586	$	—	$	—	$	161,586

Short-term investments:
Government debt securities	$	18,313	$	56,305	$	—	$	74,618
Corporate debt securities		—		239,565		—		239,565
Total short-term investments	$	18,313	$	295,870	$	—	$	314,183

Other assets, net:
Auction rate securities	$	—	$	—	$	5,100	$	5,100
Total	$	—	$	—	$	5,100	$	5,100

Total	$	179,899	$	295,870	$	5,100	$	480,869


	Fair Value Measurements
	at January 2, 2021 Using
	Quoted Prices in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
Description	(Level 1)		(Level 2)		(Level 3)		Total
Assets:
Cash equivalents:
Money market funds	$	75,606	$	—	$	—	$	75,606
Corporate debt securities		—		14,995		—		14,995
Government debt securities		2,355		2,564		—		4,919
Total cash equivalents	$	77,961	$	17,559	$	—	$	95,520

Short-term investments:
Government debt securities	$	38,461	$	104,112	$	—	$	142,573
Corporate debt securities		—		379,390		—		379,390
Total short-term investments	$	38,461	$	483,502	$	—	$	521,963

Other assets, net:
Auction rate securities	$	—	$	—	$	5,340	$	5,340
Total	$	—	$	—	$	5,340	$	5,340

Total	$	116,422	$	501,061	$	5,340	$	622,823

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

4. Fair Value of Financial Instruments (Continued)

Valuation methodology

The Company’s cash equivalents and short-term investments that are classified as Level 2 are valued using non-binding market consensus prices that are corroborated with observable market data; quoted market prices for similar instruments in active markets; or pricing models, such as a discounted cash flow model, with all significant inputs derived from or corroborated with observable market data. Investments classified as Level 3 are valued using a discounted cash flow model. The assumptions used in preparing the discounted cash flow model include estimates for interest rates, amount of cash flows, expected holding periods of the securities and a discount to reflect the Company’s inability to liquidate the securities. The Company’s derivative instruments are valued using discounted cash flow models. The assumptions used in preparing the valuation models include foreign exchange rates, forward and spot prices for currencies and market observable data of similar instruments.

Contractual maturities of investments

The Company’s investments are reported at fair value, with unrealized gains and losses, net of tax, recorded as a component of accumulated other comprehensive income (loss) in the Consolidated Balance Sheet. The following summarizes the contractual underlying maturities of the Company’s available-for-sale investments and money market funds at July 3, 2021 (in thousands):


			Fair
	Cost		Value
Due in one year or less	$	324,890	$	325,468
Due after one year through ten years		149,864		150,001
Due after ten years		6,300		5,400
	$	481,054	$	480,869

Available-for-sale investments

The available-for-sale investments that were in a continuous unrealized loss position, aggregated by length of time that individual securities have been in a continuous loss position, were as follows (in thousands):


	Less Than 12 Months				12 Months or Greater				Total
			Gross				Gross				Gross
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
As of July 3, 2021	Value		Losses		Value		Losses		Value		Losses
Government debt securities	$	21,082	$	(26)	$	—	$	—	$	21,082	$	(26)
Corporate debt securities		47,314		(68)		—		—		47,314		(68)
Auction rate securities		—		—		5,100		(900)		5,100		(900)
	$	68,396	$	(94)	$	5,100	$	(900)	$	73,496	$	(994)


	Less Than 12 Months				12 Months or Greater				Total
			Gross				Gross				Gross
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
As of January 2, 2021	Value		Losses		Value		Losses		Value		Losses
Government debt securities	$	10,146	$	(5)	$	—	$	—	$	10,146	$	(5)
Corporate debt securities		51,909		(74)		—		—		51,909		(74)
Auction rate securities		—		—		5,340		(660)		5,340		(660)
	$	62,055	$	(79)	$	5,340	$	(660)	$	67,395	$	(739)

The gross unrealized losses as of July 3, 2021 and January 2, 2021 were due primarily to changes in market interest rates and the illiquidity of the Company’s auction-rate securities. The Company’s auction-rate securities have been illiquid since 2008 when auctions for the securities failed because sell orders exceeded buy orders. These securities have a contractual maturity date of 2046. The Company is unable to predict if these funds will become available before their maturity date.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

4. Fair Value of Financial Instruments (Continued)

The Company records an allowance for credit loss when a decline in investment market value is due to credit-related factors. When evaluating an investment for impairment, the Company reviews factors such as the severity of the impairment, changes in underlying credit ratings, forecasted recovery, the Company’s intent to sell or the likelihood that it would be required to sell the investment before its anticipated recovery in market value and the probability that the scheduled cash payments will continue to be made. As of July 3, 2021, there were no material declines in the market value of available-for-sale investments due to credit-related factors.

At July 3, 2021 and January 2, 2021, there were no material unrealized gains associated with the Company’s available-for-sale investments.

Level 3 fair value measurements

The following summarizes quantitative information about Level 3 fair value measurements.

Auction rate securities


Fair Value at
July 3, 2021
(000s)		Valuation Technique	Unobservable Input	Weighted Average
$	5,100	Discounted cash flow	Estimated yield	1.19%

			Expected holding period	10 years

			Estimated discount rate	2.26%

Significant changes in any of the unobservable inputs used in the fair value measurement of auction rate securities in isolation could result in a significantly lower or higher fair value measurement. An increase in expected yield would result in a higher fair value measurement, whereas an increase in expected holding period or estimated discount rate would result in a lower fair value measurement. Generally, a change in the assumptions used for expected holding period is accompanied by a directionally similar change in the assumptions used for estimated yield and discount rate.

The following summarizes the activity in Level 3 financial instruments for the three and six months ended July 3, 2021 (in thousands):

Assets


	Three Months		Six Months
Auction Rate Securities	Ended		Ended
Beginning balance	$	5,262	$	5,340
Loss included in other comprehensive income (loss)		(162)		(240)
Balance at July 3, 2021	$	5,100	$	5,100

Fair values of other financial instruments

The Company’s debt is recorded at cost, but is measured at fair value for disclosure purposes. The fair value of the Company’s convertible senior notes is determined using observable market prices. The notes are traded in less active markets and are therefore classified as a Level 2 fair value measurement. As of July 3, 2021 and January 2, 2021, the fair value of the 0.625% convertible senior notes due in 2025 was $743.2 million and $671.4 million, respectively.

The Company’s other financial instruments, including cash, accounts receivable and accounts payable, are recorded at amounts that approximate their fair values due to their short maturities.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

5. Derivative Financial Instruments

The Company uses derivative financial instruments to manage certain exposures to the variability of foreign currency exchange rates. The Company’s objective is to offset increases and decreases in expenses resulting from these exposures with gains and losses on the derivative contracts, thereby reducing volatility of earnings. The Company does not use derivative contracts for speculative or trading purposes. The Company recognizes derivatives, on a gross basis, in the Consolidated Balance Sheet at fair value. Cash flows from derivatives are classified according to the nature of the cash receipt or payment in the Consolidated Statement of Cash Flows.

Cash Flow Hedges

Foreign Currency Forward Contracts

The Company uses foreign currency forward contracts to reduce the earnings impact that exchange rate fluctuations have on operating expenses denominated in currencies other than the U.S. dollar. Changes in the fair value of the contracts are recorded in accumulated other comprehensive income (loss) in the Consolidated Balance Sheet and subsequently reclassified into earnings in the period during which the hedged transaction is recognized. The reclassified amount is reported in the same financial statement line item as the hedged item. If the foreign currency forward contracts are terminated or can no longer qualify as hedging instruments prior to maturity, the fair value of the contracts recorded in accumulated other comprehensive income (loss) may be recognized in the Consolidated Statement of Income based on an assessment of the contracts at the time of termination.

The Company has entered into foreign currency forward contracts for a portion of its forecasted operating expenses denominated in the Euro, Norwegian Krone, Indian Rupee and Hungarian Forint. As of July 3, 2021, the contracts had maturities of one to six months and an aggregate notional value of $23.1 million. Gains expected to be reclassified into earnings in the next twelve months were not material. The fair value of the contracts, contract gains or losses recognized in other comprehensive income (loss) and amounts reclassified from accumulated other comprehensive income into earnings were not material for any of the periods presented.

Non-designated Hedges

Foreign Currency Forward Contracts

The Company uses foreign currency forward contracts to reduce the earnings impact that exchange rate fluctuations have on non-U.S. dollar balance sheet exposures. The Company recognizes gains and losses on the foreign currency forward contracts in interest income and other, net in the Consolidated Statement of Income in the same period as the remeasurement loss and gain of the related foreign currency denominated asset or liability. The Company does not apply hedge accounting to these foreign currency forward contracts.

As of July 3, 2021, the Company held two foreign currency forward contracts denominated in Singapore Dollars with a notional value of $8.9 million and one foreign currency forward contract denominated in Indian Rupees with a notional value of $5.3 million. The fair value of foreign contracts and contract losses recognized in income were not material for any of the periods presented.

6. Balance Sheet Details

The following shows the details of selected Condensed Consolidated Balance Sheet items (in thousands):

Inventories


	July 3,		January 2,
	2021		2021
Work in progress	$	45,306	$	41,747
Finished goods		6,963		6,114
	$	52,269	$	47,861

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

7. Acquisition

Redpine Signals

On April 28, 2020, the Company acquired the Wi-Fi® and Bluetooth® business of Redpine Signals for $316.8 million in cash. This strategic acquisition accelerated the Company’s roadmap for Wi-Fi and Bluetooth silicon and software solutions, while further scaling the Company’s engineering team.

8. Debt

0.625% Convertible Senior Notes

On June 1, 2020, the Company completed a private offering of $535 million principal amount convertible senior notes (the “2025 Notes”). The 2025 Notes bear interest semi-annually at a rate of 0.625% per year and mature on June 15, 2025.

The 2025 Notes are convertible at an initial conversion rate of 8.1498 shares of common stock per $1,000 principal amount of the 2025 Notes, or approximately 4.4 million shares of common stock, which is equivalent to a conversion price of approximately $122.70 per share. The conversion rate is subject to adjustment under certain circumstances. Holders may convert the 2025 Notes under the following circumstances: during any calendar quarter after the calendar quarter ended on September 30, 2020 if the closing price of the Company’s common stock for at least 20 trading days in the 30 consecutive trading days ending on the last trading day of the preceding calendar quarter is greater than or equal to $159.51 per share, representing 130% of the conversion price of the 2025 Notes; during the five business day period after any ten consecutive trading day period (the “measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the closing sale price of our common stock and the conversion rate on each such trading day; if specified distributions or corporate events occur; if the Notes are called for redemption; or at any time after March 15, 2025. The Company may redeem all or any portion of the 2025 Notes, at its option, on or after June 20, 2023, if the last reported sale price of the Company’s common stock has been at least 130% of the conversion price then in effect for at least 20 trading days during any 30 consecutive trading day period. Upon conversion, the 2025 Notes may be settled in cash, shares of the Company’s common stock or a combination of cash and shares, at the Company’s election.

The Company incurred debt issuance costs of approximately $10.4 million, which was allocated to the liability and equity components in proportion to the allocation of the proceeds. The costs allocated to the liability component are being amortized as interest expense over the term of the 2025 Notes using the effective interest method.

1.375% Convertible Senior Notes

On March 6, 2017, the Company completed a private offering of $400 million principal amount convertible senior notes (the “2022 Notes”). The Notes bore interest semi-annually at a rate of 1.375% per year and were scheduled to mature on March 1, 2022.

On January 6, 2021, the Company issued a notice of redemption for the remaining $140.6 million principal amount of the 2022 Notes. Prior to the redemption, the Company received conversion notices representing $130.4 million principal amount of the notes. The Company paid $130.4 million in cash and issued 528,022 shares of common stock for the conversions. Notes representing $10.2 million principal amount were redeemed at par, plus accrued interest. All note conversions and redemptions were completed by March 22, 2021. The Company recognized a loss on debt extinguishment of $3.4 million during the three months ended April 3, 2021, which was recorded in interest expense in the Condensed Consolidated Statements of Operations.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

8. Debt (Continued)

Convertible Debt, Net

The principal balances of the 2025 Notes and 2022 Notes (together, the “Notes”) were separated into liability and equity components, and recorded initially at fair value. The excess of the principal amounts of the liability components over their carrying amounts represent the debt discount, which are amortized to interest expense over the term of the Notes using the effective interest method. The carrying amounts of the liability components was estimated by discounting the contractual cash flows of similar non-convertible debt at an appropriate market rate at the date of issuance.

The carrying amount of the Notes consisted of the following (in thousands):


	July 3,		January 2,
	2021		2021
Liability component
Principal	$	535,000	$	675,567
Unamortized debt discount		(88,701)		(103,953)
Unamortized debt issuance costs		(6,645)		(8,189)
Net carrying amount	$	439,654	$	563,425

Equity component
Net carrying amount	$	107,927	$	108,438

The liability components of the Notes are recorded in convertible debt on the Consolidated Balance Sheet. The equity components of the Notes are recorded in additional paid-in capital. The effective interest rate for the liability component was 5.336% for the 2025 Notes and 4.75% for the 2022 Notes. As of July 3, 2021, the remaining period over which the debt discount and debt issuance costs will be amortized was 4.0 years for the 2025 Notes.

Interest expense related to the notes was comprised of the following (in thousands):


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Contractual interest expense	$	836	$	1,374	$	1,999	$	2,841
Amortization of debt discount		4,992		4,132		10,930		7,378
Amortization of debt issuance costs		374		491		892		981
	$	6,202	$	5,997	$	13,821	$	11,200

Credit Facility

The Company and certain of its domestic subsidiaries (the “Guarantors”) have a $400 million revolving credit facility with a maturity date of August 7, 2024. The credit facility includes a $25 million letter of credit sublimit and a $10 million swingline loan sublimit. The Company also has an option to increase the size of the borrowing capacity by up to the greater of an aggregate of $250 million and 100% of EBITDA of the last four fiscal quarters, plus an amount that would not cause a secured leverage ratio (funded debt secured by assets/EBITDA) to exceed 3.25 to 1.00, subject to certain conditions.

The credit facility, other than swingline loans, will bear interest at the Eurodollar rate plus an applicable margin or, at the option of the Company, a base rate (defined as the highest of the Wells Fargo prime rate, the Federal Funds rate plus 0.50% and the Eurodollar Base Rate plus 1.00%) plus an applicable margin. Swingline loans accrue interest at the base rate plus the applicable margin for base rate loans. The applicable margins for the Eurodollar rate loans range from 1.00% to 1.75% and for base rate loans range from 0.00% to 0.75%, depending in each case, on the leverage ratio as defined in the credit facility.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

8. Debt (Continued)

The credit facility contains various conditions, covenants and representations with which the Company must be in compliance in order to borrow funds and to avoid an event of default, including financial covenants that the Company must maintain a net leverage ratio (funded indebtedness/EBITDA) of no more than 4.25 to 1, a secured leverage ratio of no more than 3.50 to 1, and a minimum interest coverage ratio (EBITDA/interest payments) of no less than 2.50 to 1. As of July 3, 2021, the Company was in compliance with all covenants of the credit facility. The Company’s obligations under the credit facility are guaranteed by the Guarantors and are secured by a security interest in substantially all assets of the Company and the Guarantors.

9. Commitments and Contingencies

Legal Proceedings

The Company is involved in various legal proceedings that have arisen in the normal course of business. While the ultimate results cannot be predicted with certainty, the Company does not expect them to have a material adverse effect on its Consolidated Financial Statements.

10. Revenues

A portion of the Company's sales are made to distributors under agreements allowing certain rights of return and/or price protection related to the final selling price to the end customers. These factors impact the timing and uncertainty of revenues and cash flows. During the three months ended July 3, 2021 and July 4, 2020 and the six months ended July 3, 2021 and July 4, 2020, the Company recognized revenue of $8.4 million, $8.5 million, $9.3 million and $9.5 million, respectively, from performance obligations that were satisfied in previous reporting periods. The following disaggregates the Company's revenue by sales channel (in thousands):


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Distributors	$	137,933	$	96,244	$	265,919	$	193,765
Direct customers		31,559		18,106		61,430		38,603
	$	169,492	$	114,350	$	327,349	$	232,368

11. Stock-Based Compensation

In fiscal 2009, the stockholders of the Company approved the 2009 Stock Incentive Plan (the “2009 Plan”) and the 2009 Employee Stock Purchase Plan (the “2009 Purchase Plan”). In fiscal 2017, the stockholders of the Company approved amendments to both the 2009 Plan and the 2009 Purchase Plan. The purpose of the amendments was to authorize additional shares of common stock for issuance, to comply with changes in applicable law, to improve the Company’s corporate governance and to implement other best practices.

Stock-based compensation costs are based on the fair values on the date of grant for stock awards and stock options and on the date of enrollment for the employee stock purchase plans. The fair values of stock awards (such as restricted stock awards (RSUs), performance stock units (PSUs) and restricted stock awards (RSAs)) are estimated based on their intrinsic values. The fair values of market stock awards (MSUs) are estimated using a Monte Carlo simulation. The fair values of stock options and employee stock purchase plans are estimated using the Black-Scholes option-pricing model.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

11. Stock-Based Compensation (Continued)

The following table presents details of stock-based compensation costs recognized in the Condensed Consolidated Statements of Operations (in thousands):


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Cost of revenues	$	199	$	200	$	436	$	375
Research and development		5,488		5,612		11,118		11,534
Selling, general and administrative		5,565		6,006		11,066		12,552
		11,252		11,818		22,620		24,461
Income tax benefit		577		945		1,259		2,122
	$	10,675	$	10,873	$	21,361	$	22,339

The Company had approximately $110.8 million of total unrecognized compensation costs related to equity grants under the 2009 Plan as of July 3, 2021 that are expected to be recognized over a weighted-average period of approximately 2.4 years. There were no significant stock-based compensation costs capitalized into assets in any of the periods presented.

12. Income Taxes

Provision (benefit) for income taxes includes both domestic and foreign income taxes at the applicable tax rates adjusted for non-deductible expenses, research and development tax credits and other permanent differences. Income tax expense (benefit) was $1.2 million and $(4.2) million for the three months ended July 3, 2021 and July 4, 2020, resulting in effective tax rates of (6.7)% and 10.5%, respectively. Income tax expense (benefit) was $3.2 million and $(8.4) million for the six months ended July 3, 2021 and July 4, 2020, resulting in effective tax rates of (7.8)% and 11.1%, respectively.

The higher provision for income taxes for the three and six months ended July 3, 2021 was primarily due to the adoption of ASU 2019-12 Simplifying the Accounting for Income Taxes, as of the beginning of the current fiscal year and its requirement to reallocate income tax benefit from continuing operations to discontinued operations. Under ASU 2019-12, which is being applied prospectively from the date of adoption, the income tax benefit of a loss from continuing operations should be reallocated to discontinued operations if the Company would be unable to benefit from the loss without considering the income from discontinued operations. As such, the income tax benefit of $9.6 million associated with continuing operations for the three and six months ended July 3, 2021 was reallocated to discontinued operations. Prior to ASU 2019-12, if the Company reported a loss from continuing operations and income from discontinued operations, income from discontinued operations would be considered in determining the income tax benefit allocated to continuing operations.

Uncertain Tax Positions

As of July 3, 2021, the Company had gross unrecognized tax benefits, inclusive of interest, of $3.4 million, of which $2.7 million would affect the effective tax rate if recognized. During the six months ended July 3, 2021, the Company did not release any of its unrecognized tax benefits.

The Company recognizes interest and penalties related to unrecognized tax benefits in the provision (benefit) for income taxes. These amounts were not material for any of the periods presented.

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Silicon Laboratories Inc.

Notes to Condensed Consolidated Financial Statements (Continued)

(Unaudited)

12. Income Taxes (Continued)

Following the completion of the Norwegian Tax Administration (“NTA”) examination of the Company’s Norwegian subsidiary for income tax matters relating to fiscal years 2013 - 2016, the Company received an assessment from the NTA in December 2017 concerning an adjustment to its 2013 taxable income related to the pricing of an intercompany transaction. The Company is currently appealing the assessment. The adjustment to the pricing of the intercompany transaction results in approximately 141.3 million Norwegian kroner, or $16.4 million additional Norwegian income tax. The Company disagrees with the NTA’s assessment and believes the Company’s position on this matter is more likely than not to be sustained. The Company plans to exhaust all available administrative remedies, and if unable to resolve this matter through administrative remedies with the NTA, the Company plans to pursue judicial remedies.

The Company believes that it has accrued adequate reserves related to all matters contained in tax periods open to examination. Should the Company experience an unfavorable outcome in the NTA matter, however, such an outcome could have a material impact on its financial statements.

Tax years 2015 through 2021 remain open to examination by the major taxing jurisdictions in which the Company operates. The Company is not currently under audit in any major taxing jurisdiction.

The Company does not expect material changes to its gross unrecognized tax benefits in the next 12 months.

13. Subsequent Event

On April 22, 2021, the Company entered into an Asset Purchase Agreement (the “Agreement”) pursuant to which Skyworks Solutions, Inc. agreed to acquire certain assets, rights, and properties, and assume certain liabilities, comprising the Company’s infrastructure and automotive business for $2.75 billion in cash. The sale was completed pursuant to the terms of the Agreement on July 26, 2021. The Company expects to record a gain on sale, net of income tax, of approximately $2.1 billion in its third fiscal quarter of 2021 upon the close of the sale.

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

The following discussion and analysis of financial condition and results of operations should be read in conjunction with the Condensed Consolidated Financial Statements and related notes thereto included elsewhere in this report. This discussion contains forward-looking statements. Please see the “Cautionary Statement” above and “Risk Factors” below for discussions of the uncertainties, risks and assumptions associated with these statements. Our fiscal year-end financial reporting periods are a 52- or 53-week fiscal year that ends on the Saturday closest to December 31. Fiscal 2021 will have 52 weeks. Fiscal 2020 had 53 weeks with the extra week occurring in the first quarter of the year. Our second quarter of fiscal 2021 ended July 3, 2021. Our second quarter of fiscal 2020 ended July 4, 2020.

Impact of COVID-19

A new strain of novel coronavirus which causes a severe respiratory disease (“COVID-19”) was identified in 2019, and subsequently declared a worldwide pandemic by the World Health Organization. We implemented a response plan and continued operations while largely transitioning our global workforce to a remote work model. The third parties that perform our semiconductor manufacturing, assembly, packaging and testing have generally remained operational. The extent of the impact of the COVID-19 pandemic on our operational and financial performance will depend on future developments, including the duration, severity and spread of the pandemic, related restrictions on travel and transportation and other actions that may be taken by governmental authorities, the impact to the business of our suppliers or customers, and other items identified under “Risk Factors” below, all of which are uncertain and cannot be predicted. An extended period of global supply chain and economic disruption could materially affect our business, results of operations, access to sources of liquidity and financial condition.

Overview

We are a leading provider of silicon, software and solutions for a smarter, more connected world. Our award-winning technologies are shaping the future of the Internet of Things (IoT), industrial automation and consumer markets. Our world-class engineering team creates products focused on performance, energy savings, connectivity and simplicity. Our primary semiconductor products are mixed-signal integrated circuits (ICs), which are electronic components that convert real-world analog signals, such as sound and radio waves, into digital signals that electronic products can process.

As a fabless semiconductor company, we rely on third-party semiconductor fabricators in Asia, and to a lesser extent the United States and Europe, to manufacture the silicon wafers that reflect our IC designs. Each wafer contains numerous die, which are cut from the wafer to create a chip for an IC. We rely on third parties in Asia to assemble, package, and, in most cases, test these devices and ship these units to our customers. Testing performed by such third parties facilitates faster delivery of products to our customers (particularly those located in Asia), shorter production cycle times, lower inventory requirements, lower costs and increased flexibility of test capacity.

Our expertise in analog-intensive, high-performance, mixed-signal ICs and software enables us to develop highly differentiated solutions that address multiple markets. Our Internet of Things products include wireless connectivity, microcontroller (MCU) and sensor products.

The sales cycle for our ICs can be as long as 12 months or more. An additional three to six months or more are usually required before a customer ships a significant volume of devices that incorporate our ICs. Due to this lengthy sales cycle, we typically experience a significant delay between incurring research and development and selling, general and administrative expenses, and the corresponding sales. Consequently, if sales in any quarter do not occur when expected, expenses and inventory levels could be disproportionately high, and our operating results for that quarter and, potentially, future quarters would be adversely affected. Moreover, the amount of time between initial research and development and commercialization of a product, if ever, can be substantially longer than the sales cycle for the product. Accordingly, if we incur substantial research and development costs without developing a commercially successful product, our operating results, as well as our growth prospects, could be adversely affected.

Because some of our ICs are designed for use in consumer products, we expect that the demand for our products will be typically subject to some degree of seasonal demand. However, rapid changes in our markets and across our product areas make it difficult for us to accurately estimate the impact of seasonal factors on our business.

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Discontinued Operation

On April 22, 2021, we entered into an Asset Purchase Agreement pursuant to which Skyworks Solutions agreed to acquire certain assets, rights, and properties, and assume certain liabilities, comprising our infrastructure and automotive business for $2.75 billion in cash. The sale was completed pursuant to the terms of the Agreement on July 26, 2021. The results of operations of the sold component have been presented in the accompanying condensed consolidated financial statements as discontinued operations.

Current Period Highlights of Continuing Operations

Revenues increased $55.1 million in the recent quarter compared to the second quarter of fiscal 2020 primarily due to increased demand for our products. Gross profit increased $29.7 million during the same period due primarily to increased product sales. Gross margin decreased to 56.8% in the recent quarter compared to 58.2% in the second quarter of fiscal 2020 due primarily to variations in product mix. Operating expenses increased by $9.4 million in the recent quarter compared to the second quarter of fiscal 2020 due primarily to increased personnel-related expenses, new product introduction costs and amortization of intangible assets. Operating loss in the recent quarter was $11.5 million compared to $31.8 million in the second quarter of fiscal 2020.

We ended the second quarter with $617.3 million in cash, cash equivalents and short-term investments. Net cash provided by operating activities was $5.7 million during the recent six-month period. Accounts receivable was $99.5 million at July 3, 2021, representing 53 days sales outstanding (DSO). Inventory was $52.3 million at July 3, 2021, representing 64 days of inventory (DOI). In the recent six-month period, we repurchased 0.1 million shares of our common stock for $19.0 million.

Through acquisitions and internal development efforts, we have continued to diversify our portfolio and introduce new products and solutions with added functionality and integration. In the first six months of fiscal 2021, we introduced a fully integrated, certified Wi-SUN® solution simplifying Low Power Wide Area Network (LPWAN) deployment for smart cities; wireless solutions for development of Matter end products that support Thread, Wi-Fi, and Bluetooth protocols; and a new 32-bit MCU on our award-winning xG22 platform for IoT edge applications. We plan to continue introducing products that increase the content we provide for existing applications, thereby enabling us to serve markets we do not currently address and expand our total available market opportunity.

During the six months ended July 3, 2021, we had no customer that represented more than 10% of our revenues. In addition to direct sales to customers, some of our end customers purchase products indirectly from us through distributors and contract manufacturers. An end customer purchasing through a contract manufacturer typically instructs such contract manufacturer to obtain our products and incorporate such products with other components for sale by such contract manufacturer to the end customer. Although we actually sell the products to, and are paid by, the distributors and contract manufacturers, we refer to such end customer as our customer. Three of our distributors who sell to our customers, Arrow Electronics, Edom Technology and Sekorm, each represented more than 10% of our revenues during the six months ended July 3, 2021.

The percentage of our revenues derived from outside of the United States was 89% during the six months ended July 3, 2021. All of our revenues to date have been denominated in U.S. dollars. We believe that a majority of our revenues will continue to be derived from customers outside of the United States.

Results of Operations

The following describes the line items set forth in our Condensed Consolidated Statements of Operations:

Revenues. Revenues are generated predominately by sales of our products. Our revenues are subject to variation from period to period due to the volume of shipments made within a period, the mix of products we sell and the prices we charge for our products.

Cost of Revenues. Cost of revenues includes the cost of purchasing finished silicon wafers processed by independent foundries; costs associated with assembly, test and shipping of those products; costs of personnel and equipment associated with manufacturing support, logistics and quality assurance; costs of software royalties, other intellectual property license costs and certain acquired intangible assets; and an allocated portion of our occupancy costs. Our gross margin fluctuates depending on product mix, manufacturing yields, inventory valuation adjustments, average selling prices and other factors.

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Research and Development. Research and development expense consists primarily of personnel-related expenses, including stock-based compensation, as well as new product masks, external consulting and services costs, equipment tooling, equipment depreciation, amortization of intangible assets and an allocated portion of our occupancy costs. Research and development activities include the design of new products, refinement of existing products and design of test methodologies to ensure compliance with required specifications.

Selling, General and Administrative. Selling, general and administrative expense consists primarily of personnel-related expenses, including stock-based compensation, as well as an allocated portion of our occupancy costs, sales commissions to independent sales representatives, amortization of intangible assets, professional fees, legal fees, and promotional and marketing expenses.

Interest Income and Other, Net. Interest income and other, net reflects interest earned on our cash, cash equivalents and investment balances, foreign currency remeasurement adjustments, income or loss on equity method investments, and other non-operating income and expenses.

Interest Expense. Interest expense consists of interest on our short and long-term obligations, including our convertible senior notes and credit facility. Interest expense on our convertible senior notes includes contractual interest, amortization of the debt discount and amortization of debt issuance costs.

Provision (Benefit) for Income Taxes. Provision (benefit) for income taxes includes both domestic and foreign income taxes at the applicable tax rates adjusted for non-deductible expenses, research and development tax credits and other permanent differences.

The following table sets forth our Condensed Consolidated Statements of Operations data as a percentage of revenues for the periods indicated:


	Three Months Ended				Six Months Ended
	July 3,		July 4,		July 3,		July 4,
	2021		2020		2021		2020
Revenues	100.0	%	100.0	%	100.0	%	100.0	%
Cost of revenues	43.2		41.8		42.6		41.7
Gross margin	56.8		58.2		57.4		58.3
Operating expenses:
Research and development	38.3		50.7		39.4		49.8
Selling, general and administrative	25.3		35.3		26.0		36.5
Operating expenses	63.6		86.0		65.4		86.3
Operating loss	(6.8)		(27.8)		(8.0)		(28.0)
Other income (expense):
Interest income and other, net	0.4		2.9		1.1		2.9
Interest expense	(3.8)		(10.3)		(5.4)		(7.5)
Loss from continuing operations before income taxes	(10.2)		(35.2)		(12.3)		(32.6)
Provision (benefit) for income taxes	0.7		(3.7)		1.0		(3.6)
Loss from continuing operations	(10.9)		(31.5)		(13.3)		(29.0)
Income from discontinued operations, net of income taxes	22.7		29.9		23.5		29.2
Net income (loss)	11.8	%	(1.6)	%	10.2	%	0.2	%

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Revenues


	Three Months Ended								Six Months Ended
	July 3,		July 4,				%		July 3,		July 4,				%
(in millions)	2021		2020		Change		Change		2021		2020		Change		Change
Revenues	$	169.5	$	114.4	$	55.1	48.2	%	$	327.3	$	232.4	$	94.9	40.9	%

The change in revenues in the recent three and six month periods was due to increased demand for our IoT products. Unit volumes of our products increased by 50.7% while average selling prices decreased by 1.1% compared to the three months ended July 4, 2020. Unit volumes of our products increased by 46.1% while average selling prices decreased by 2.9% compared to the six months ended July 4, 2020. The average selling prices of our products may fluctuate significantly from period to period due to changes in product mix, pricing decisions and other factors. In general, as our products become more mature, we expect to experience decreases in average selling prices.

Gross Profit


	Three Months Ended									Six Months Ended
	July 3,			July 4,						July 3,			July 4,
(in millions)	2021			2020			Change			2021			2020			Change
Gross profit	$	96.3		$	66.6		$	29.7		$	188.1		$	135.4		$	52.7
Gross margin		56.8	%		58.2	%		(1.4)	%		57.4	%		58.3	%		(0.9)	%

Gross profit increased during the recent three and six month periods due primarily to increased product sales. Gross margin decreased during the recent three and six month periods primarily due to variations in product mix.

We may experience declines in the average selling prices of certain of our products. This creates downward pressure on gross margin and may be offset to the extent we are able to introduce higher margin new products and gain market share with our products; reduce costs of existing products through improved design; achieve lower production costs from our wafer suppliers and third-party assembly and test subcontractors; achieve lower production costs per unit as a result of improved yields throughout the manufacturing process; or reduce logistics costs.

Research and Development


	Three Months Ended										Six Months Ended
	July 3,			July 4,					%		July 3,			July 4,					%
(in millions)	2021			2020			Change		Change		2021			2020			Change		Change
Research and development	$	64.8		$	58.0		$	6.8	11.8	%	$	128.8		$	115.7		$	13.1	11.4	%
Percent of revenue		38.3	%		50.7	%		—	—			39.4	%		49.8	%		—	—

The increase in research and development expense in the recent three and six month periods was primarily due to increases of $3.4 million and $5.6 million, respectively, for personnel-related expenses, $2.2 million and $4.0 million, respectively, for new product development costs, and $0.2 million and $1.7 million, respectively, for the amortization of intangible assets. We expect that research and development expense will increase in absolute dollars in the third quarter of fiscal 2021.

Selling, General and Administrative


	Three Months Ended										Six Months Ended
	July 3,			July 4,					%		July 3,			July 4,					%
(in millions)	2021			2020			Change		Change		2021			2020			Change		Change
Selling, general and administrative	$	43.0		$	40.4		$	2.6	6.5	%	$	85.4		$	84.8		$	0.6	0.7	%
Percent of revenue		25.3	%		35.3	%		—	—			26.0	%		36.5	%		—	—

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The increase in selling, general and administrative expense in the recent three-month period was primarily due to an increase of $2.5 million for personnel-related expenses. The increase in selling, general and administrative expense in the recent six-month period was primarily due to an increase of $2.4 million for personnel-related expenses offset in part by a decrease of $1.6 million in acquisition-related costs. We expect that selling, general and administrative expense will increase in absolute dollars in the third quarter of fiscal 2021.

Interest Income and Other, Net

Interest income and other, net for the three and six months ended July 3, 2021 was $0.6 million and $3.5 million, respectively, compared to $3.3 million and $6.5 million for the three and six months ended July 4, 2020, respectively. The decrease in interest income and other, net in the recent three and six month periods was primarily due to lower interest rates on the underlying investment instruments.

Interest Expense

Interest expense for the three and six months ended July 3, 2021 was $6.5 million and $17.8 million, respectively, compared to $11.8 million and $17.3 million for the three and six months ended July 4, 2020, respectively. The decrease in interest expense in the recent three-month period was primarily due to a loss recorded on the early extinguishment of a portion of the 2022 notes recorded in the prior three-month period.

Provision (Benefit) for Income Taxes


	Three Months Ended								Six Months Ended
	July 3,			July 4,					July 3,			July 4,
(in millions)	2021			2020			Change		2021			2020			Change
Provision (benefit) for income taxes	$	1.2		$	(4.2)		$	5.4	$	3.2		$	(8.4)		$	11.6
Effective tax rate		(6.7)	%		10.5	%		—		(7.8)	%		11.1	%		—

The increase in the provision for income taxes for the three and six months ended July 3, 2021 as compared to the prior periods was primarily due to the adoption of ASU 2019-12, Simplifying the Accounting for Income Taxes, during the six months ended July 3, 2021 and the required allocation of $9.6 million of tax benefits from continuing operations to discontinued operations in the fiscal 2021 periods.

Income from discontinued operations, net of income taxes


	Three Months Ended						Six Months Ended
	July 3,		July 4,				July 3,		July 4,
(in millions)	2021		2020		Change		2021		2020		Change
Income from discontinued operations, net of income taxes	$	38.4	$	34.2	$	4.2	$	77.1	$	67.9	$	9.2

The increase in income from discontinued operations, net of income taxes in the recent three and six month periods was primarily due to decreases in the provision for income taxes in the current periods. See Note 2, Discontinued Operations, to the Condensed Consolidated Financial Statements for additional information.

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Business Outlook

The following represents our business outlook for the third quarter of fiscal 2021.


Income Statement Item		Estimate
Revenues		$170 million to $180 million

Gross margin		57% - 57.5%

Operating expenses		$116 million

Effective tax rate		(11)%

Diluted loss per share		$(0.56) to $(0.46)

Liquidity and Capital Resources

Our principal sources of liquidity as of July 3, 2021 consisted of $617.3 million in cash, cash equivalents and short-term investments, of which approximately $430.6 million was held by our U.S. entities. The remaining balance was held by our foreign subsidiaries. Our cash equivalents and short-term investments consisted of government debt securities, which include agency bonds, municipal bonds, variable-rate demand notes, U.S. Treasury bills and U.S. government securities; corporate debt securities, which include asset-backed securities, corporate bonds, certificates of deposit and commercial paper; and money market funds. Our long-term investments consisted of auction-rate securities.

Operating Activities

Net cash provided by operating activities was $5.7 million during the six months ended July 3, 2021, compared to net cash provided of $28.1 million during the six months ended July 4, 2020. Operating cash flows during the six months ended July 3, 2021 reflect our net income of $33.4 million, adjustments of $(13.8) million for income from discontinued operations, depreciation, amortization, stock-based compensation and deferred income taxes, and a net cash outflow of $13.9 million due to changes in our operating assets and liabilities.

Accounts receivable increased to $99.5 million at July 3, 2021 from $95.2 million at January 2, 2021. The increase in accounts receivable resulted primarily from normal variations in the timing of collections and billings. Our average DSO was 53 days at July 3, 2021 and 59 days at January 2, 2021.

Inventory increased to $52.3 million at July 3, 2021 from $47.9 million at January 2, 2021. Our inventory levels will vary based on the availability of supply as well as the impact of variations between forecasted demand used for purchasing inventory and actual demand. Our DOI was 64 days at July 3, 2021 and 70 days at January 2, 2021.

Investing Activities

Net cash provided by investing activities was $194.9 million during the six months ended July 3, 2021, compared to net cash used of $270.9 million during the six months ended July 4, 2020. The increase in cash inflows was principally due to a cash payment of $316.8 million for the acquisition of the Wi-Fi and Bluetooth business of Redpine Signals in the prior period and an increase in cash inflows of $150.5 million from net sales and purchases of marketable securities in the current period.

Financing Activities

Net cash used in financing activities was $170.9 million during the six months ended July 3, 2021, compared to net cash provided of $222.3 million during the six months ended July 4, 2020. The decrease in cash inflows was principally due to $845.0 million in proceeds from the issuance of debt in the prior period, offset by a decrease of $456.9 million in payments on debt in the current period.

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Discontinued Operations

Net cash provided by discontinued operations was $70.7 million during the six months ended July 3, 2021, compared to net cash provided of $71.1 million during the six months ended July 4, 2020.

Debt

As of July 3, 2021, our debt included $535 million principal amount of convertible senior notes (the “2025 Notes”). We also had an undrawn $400 million revolving credit facility. We have an option to increase the size of the borrowing capacity of the revolving credit facility by up to the greater of an aggregate of $250 million and 100% of EBITDA, plus an amount that would not cause a secured leverage ratio to exceed 3.25 to 1.00, subject to certain conditions. On January 6, 2021, we issued a notice of redemption for the remaining 2022 convertible senior notes (the “2022 Notes”). During the three months ended April 3, 2021, we paid $140.6 million in cash and issued 528,022 shares of common stock in connection with the redemption of the remaining 2022 Notes. See Note 8, Debt, to the Condensed Consolidated Financial Statements for additional information.

Our future capital requirements will depend on many factors, including the rate of sales growth, market acceptance of our products, the timing and extent of research and development projects, potential acquisitions of companies or technologies and the expansion of our sales and marketing activities. We believe our existing cash, cash equivalents, investments and credit under our Credit Facility are sufficient to meet our capital requirements through at least the next 12 months, although we could be required, or could elect, to seek additional funding prior to that time. We may enter into acquisitions or strategic arrangements in the future which also could require us to seek additional equity or debt financing.

Critical Accounting Policies and Estimates

The preparation of financial statements and accompanying notes in conformity with U.S. generally accepted accounting principles requires that we make estimates and assumptions that affect the amounts reported. Changes in facts and circumstances could have a significant impact on the resulting estimated amounts included in the financial statements. We believe the following critical accounting policies affect our more complex judgments and estimates.

Inventory valuation - We assess the recoverability of inventories through the application of a set of methods, assumptions and estimates. In determining net realizable value, we write down inventory that may be slow moving or have some form of obsolescence, including inventory that has aged more than 12 months. We also adjust the valuation of inventory when its manufacturing cost exceeds the estimated selling price less costs of completion, disposal and transportation. We assess the potential for any unusual customer returns based on known quality or business issues and write-off inventory losses for scrap or non-saleable material. Inventory not otherwise identified to be written down is compared to an assessment of our 12-month forecasted demand. The result of this methodology is compared against the product life cycle and competitive situations in the marketplace to determine the appropriateness of the resulting inventory levels. Demand for our products may fluctuate significantly over time, and actual demand and market conditions may be more or less favorable than those that we project. In the event that actual demand is lower or market conditions are worse than originally projected, additional inventory write-downs may be required.

Impairment of goodwill and other long-lived assets - We review long-lived assets which are held and used, including fixed assets and purchased intangible assets, for impairment whenever changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Such evaluations compare the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset over its expected useful life and are significantly impacted by estimates of future prices and volumes for our products, capital needs, economic trends and other factors which are inherently difficult to forecast. If the asset is considered to be impaired, we record an impairment charge equal to the amount by which the carrying value of the asset exceeds its fair value determined by either a quoted market price, if any, or a value determined by utilizing a discounted cash flow technique.

We test our goodwill for impairment annually as of the first day of our fourth fiscal quarter and in interim periods if certain events occur indicating that the carrying value of goodwill may be impaired. We assess goodwill for impairment by comparing the fair value of a reporting unit to its carrying amount. In determining fair value, several valuation methodologies are allowed, although quoted market prices are the best evidence of fair value. If the fair value of the reporting unit is less than its carrying amount, we recognize an impairment loss equal to that excess amount.

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Acquired intangible assets - When we acquire a business, a portion of the purchase price is typically allocated to identifiable intangible assets, such as acquired technology and customer relationships. Fair value of these assets is determined primarily using the income approach, which requires us to project future cash flows and apply an appropriate discount rate. We amortize intangible assets with finite lives over their expected useful lives. Our estimates are based upon assumptions believed to be reasonable but which are inherently uncertain and unpredictable. Assumptions may be incomplete or inaccurate, and unanticipated events and circumstances may occur. Incorrect estimates could result in future impairment charges, and those charges could be material to our results of operations.

Revenue recognition - We recognize revenue when control of the promised goods or services is transferred to customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. In order to achieve this core principle, we apply a five-step process. As part of this process, we analyze the performance obligations in a customer contract and estimate the consideration we expect to receive. The evaluation of performance obligations requires that we identify the promised goods and services in the contract. For contracts that contain more than one promised good and service, we then must determine whether the promises are capable of being distinct and if they are separately identifiable from other promises in the contract. Additionally, for our sales to distributors, we must estimate the impact that price adjustments and rights of return will have on consideration. We make these estimates based on available information, including recent sales activity and pricing data. If our evaluation of performance obligations is incorrect, we may recognize revenue sooner or later than is appropriate. If our estimates of consideration are inaccurate, we may recognize too much or too little revenue in a period. We may adjust assumptions used to estimate consideration periodically based on analysis of prior estimates.

Stock-based compensation - We recognize the fair-value of stock-based compensation transactions in the Consolidated Statements of Operations. The fair value of our full-value stock awards (with the exception of market-based performance awards) equals the fair market value of our stock on the date of grant. The fair value of our market-based performance awards is estimated at the date of grant using a Monte-Carlo simulation. The fair value of our stock option and employee stock purchase plan grants is estimated at the date of grant using the Black-Scholes option pricing model. In addition, we are required to estimate the expected forfeiture rate of our stock grants and only recognize the expense for those shares expected to vest. If our actual experience differs significantly from the assumptions used to compute our stock-based compensation cost, or if different assumptions had been used, we may have recorded too much or too little stock-based compensation cost. See Note 11, Stock-Based Compensation, to the Condensed Consolidated Financial Statements for additional information.

Income taxes - We are required to calculate income taxes in each of the jurisdictions in which we operate. This process involves calculating the actual current tax liability together with assessing temporary differences in recognition of income (loss) for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our Consolidated Balance Sheet. We record a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized. In assessing the need for a valuation allowance, we are required to estimate the amount of expected future taxable income. Judgment is inherent in this process and differences between the estimated and actual taxable income could result in a material impact on our Consolidated Financial Statements.

We recognize liabilities for uncertain tax positions based on a two-step process. The first step requires us to determine whether the weight of available evidence indicates that the tax position has met the threshold for recognition. Therefore, we must evaluate whether it is more likely than not that the position will be sustained on audit, including resolution of any related appeals or litigation processes. The second step requires us to measure the tax benefit of the tax position taken, or expected to be taken, in an income tax return as the largest amount that is more than 50% likely of being realized upon ultimate settlement. This measurement step is inherently complex and requires subjective estimations of such amounts to determine the probability of various possible outcomes. We re-evaluate the uncertain tax positions each quarter based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, expirations of statutes of limitation, effectively settled issues under audit, and new audit activity. Such a change in recognition or measurement would result in the recognition of a tax benefit or an additional charge to the tax provision in the period.

Although we believe the measurement of our liabilities for uncertain tax positions is reasonable, no assurance can be given that the final outcome of these matters will not be different than what is reflected in the historical income tax provisions and accruals. If additional taxes are assessed as a result of an audit or litigation, they could have a material effect on our income tax provision and net income in the period or periods for which that determination is made. We operate within multiple taxing jurisdictions and are subject to audit in these jurisdictions. These audits can involve complex issues which may require an extended period of time to resolve and could result in additional assessments of income tax. We believe adequate provisions for income taxes have been made for all periods.

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Recent Accounting Pronouncements

Information regarding recent accounting pronouncements is provided in Note 1, Significant Accounting Policies, to the Condensed Consolidated Financial Statements. Such information is incorporated by reference herein.

Quantitative and Qualitative Disclosures about Market Risk

Interest Income

Our investment portfolio includes cash, cash equivalents, short-term investments and long-term investments. Our main investment objectives are the preservation of investment capital and the maximization of after-tax returns on our investment portfolio. Our interest income is sensitive to changes in the general level of U.S. interest rates. Our investment portfolio holdings as July 3, 2021 yielded less than 100 basis points. A decline in yield to zero basis points on our investment portfolio holdings as of July 3, 2021 would decrease our future annual interest income by approximately $2.7 million. We believe that our investment policy, which defines the duration, concentration, and minimum credit quality of the allowable investments, meets our investment objectives.

Interest Expense

We are exposed to interest rate fluctuations in the normal course of our business, including through our credit facility. The interest rate on the credit facility consists of a variable-rate of interest and an applicable margin. While we have drawn from the credit facility in the past, we have no borrowings as of July 3, 2021. If we borrow from the credit facility in the future, we will again be exposed to interest rate fluctuations.

Foreign currency exchange rate risk

We are exposed to foreign currency exchange rate risk primarily through assets, liabilities and operating expenses of our subsidiaries denominated in currencies other than the U.S. dollar. Our foreign subsidiaries are considered to be extensions of the U.S. parent. The functional currency of the foreign subsidiaries is the U.S. dollar. Accordingly, gains and losses resulting from remeasuring transactions denominated in currencies other than U.S. dollars are recorded in the Consolidated Statements of Operations. We use foreign currency forward contracts to manage exposure to foreign exchange risk. Gains and losses on foreign currency forward contracts are recognized in earnings in the same period during which the hedged transaction is recognized.

Investments in Auction-rate Securities

As of July 3, 2021, we held $6.0 million par value auction-rate securities, all of which have experienced failed auctions because sell orders exceeded buy orders. We are unable to predict if these funds will become available before their maturity dates. Additionally, if we determine that a credit-related decline in the fair value of any of our available-for-sale auction-rate securities has occurred, we may be required to adjust the carrying value of the investments through an impairment charge.

Available Information

Our website address is www.silabs.com. Our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 are available through the investor relations page of our website free of charge as soon as reasonably practicable after we electronically file such material with, or furnish it to, the Securities and Exchange Commission (SEC). Our website and the information contained therein or connected thereto are not intended to be incorporated into this Quarterly Report on Form 10-Q.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Information related to quantitative and qualitative disclosures regarding market risk is set forth in Management’s Discussion and Analysis of Financial Condition and Results of Operations under Item 2 above. Such information is incorporated by reference herein.

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Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We have performed an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer (CEO) and Chief Financial Officer (CFO), of the effectiveness of our disclosure controls and procedures, as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934 (the Exchange Act). Based on that evaluation, our management, including our CEO and CFO, concluded that our disclosure controls and procedures were effective as of July 3, 2021 to provide reasonable assurance that information required to be disclosed by us in the reports filed or submitted by us under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Such disclosure controls and procedures include controls and procedures designed to ensure that information required to be disclosed is accumulated and communicated to our management, including our CEO and CFO, to allow timely decisions regarding required disclosures.

Changes in Internal Control over Financial Reporting

There was no change in our internal controls during the fiscal quarter ended July 3, 2021 that materially affected, or is reasonably likely to materially affect, our internal controls over financial reporting.

Part II. Other Information

Item 1. Legal Proceedings

Information regarding legal proceedings is provided in Note 9, Commitments and Contingencies, to the Condensed Consolidated Financial Statements. Such information is incorporated by reference herein.

Item 1A. Risk Factors

Global Business Risks

The COVID-19 pandemic could adversely affect our business, results of operations, and financial condition

The COVID-19 pandemic has negatively impacted the global economy, disrupted global supply chains and created significant volatility and disruption of financial markets. The extent of the impact of the COVID-19 pandemic on our operational and financial performance will depend on future developments, including the duration, severity and spread of the pandemic, related restrictions on travel and transportation and other actions that may be taken by governmental authorities, the impact to the business of our suppliers or customers and other items identified in the risk factors below, all of which are uncertain and cannot be predicted.

The impacts of the COVID-19 pandemic, or a similar public health crisis, on our business, customers, suppliers, employees, markets and financial results and condition are uncertain, evolving and dependent on numerous unpredictable factors outside of our control, including:

●

The duration and impact of a global economic recession or depression that could further reduce demand and/or pricing for our products;

●

Disruptions to our business and supply chain (and the business and supply chains of our customers) in connection with the sourcing of materials, equipment and engineering support, and services from geographic areas impacted by the public health crisis, including disruptions caused by illnesses, quarantines and restrictions on people’s ability to work, office and factory closures, disruptions to ports and other shipping infrastructure, border closures, and other travel or health-related restrictions;

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Delays or limitations on the ability of our customers to make timely payments;

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Governmental actions to limit exposure to and spreading of such infectious diseases, such as travel restrictions, quarantines and business shutdowns or slowdowns, facility closures or other restrictions;

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Deterioration of worldwide credit and financial markets that could limit our ability to obtain external financing to fund our operations and capital expenditures or to refinance our existing indebtedness;

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Potential asset impairments, including goodwill, intangible assets, investments and other assets;

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Complexities related to our employees temporarily working from home as well as increased cyber-related risks due to our employees working from home;

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Potential failure of our computer systems or communication systems; and

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Investment-related risks, including difficulties in liquidating investments due to current market conditions and adverse investment performance.

There can be no assurance that any decrease in sales resulting from the COVID-19 pandemic will be offset by increased sales in subsequent periods. Even after the COVID-19 pandemic has subsided, we may continue to experience materially adverse impacts to our business as a result of its global economic impact, including any recession, economic downturn or increased unemployment that has occurred or may occur in the future. An extended period of global supply chain and economic disruption could materially affect our business, results of operations, access to sources of liquidity and financial condition.

We are subject to the cyclical nature of the semiconductor industry, which has been subject to significant fluctuations

The semiconductor industry is highly cyclical and is characterized by constant and rapid technological change, rapid product obsolescence and price erosion, evolving standards, short product life cycles and wide fluctuations in product supply and demand. The industry has experienced significant fluctuations, often connected with, or in anticipation of, maturing product cycles and new product introductions of both semiconductor companies’ and their customers’ products and fluctuations in general economic conditions. Deteriorating general worldwide economic conditions, including reduced economic activity, concerns about credit and inflation, increased energy costs, decreased consumer confidence, reduced corporate profits, decreased spending and similar adverse business conditions, would make it very difficult for our customers, our vendors, and us to accurately forecast and plan future business activities and could cause U.S. and foreign businesses to slow spending on our products. We cannot predict the timing, strength, or duration of any economic slowdown or economic recovery. If the economy or markets in which we operate deteriorate, our business, financial condition, and results of operations would likely be materially and adversely affected.

Downturns have been characterized by diminished product demand, production overcapacity, high inventory levels and accelerated erosion of average selling prices. Upturns have been characterized by increased product demand and production capacity constraints created by increased competition for access to third-party foundry, assembly and test capacity. We are dependent on the availability of such capacity to manufacture, assemble and test our products. Foundry, assembly and test capacity is currently limited due to a spike in semiconductor demand. None of our third-party foundry, assembly or test subcontractors have provided assurances that adequate capacity will be available to us.

In addition, the COVID-19 pandemic has caused further global economic uncertainty. The impact from the rapidly changing market and economic conditions due to the COVID-19 outbreak is uncertain, disrupting the business of our customers and suppliers, and could impact our business and operating results in the future.

We are a global company, which subjects us to additional business risks including logistical and financial complexity, political instability and currency fluctuations

We have established international subsidiaries and have opened offices in international markets to support our activities in Asia, the Americas and Europe. This has included the establishment of a headquarters in Singapore for non-U.S. operations. During the six months ended July 3, 2021, the percentage of our revenues derived from outside of the United States was 89% (and the revenue associated with end customers in China was 26%, and revenue attributed to China based on shipped-to location was 46%). We may not be able to maintain or increase global market demand for our products. Our international operations are subject to a number of risks, including:

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Complexity and costs of managing international operations and related tax obligations, including our headquarters for non-U.S. operations in Singapore;

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Protectionist laws and business practices, including trade restrictions, tariffs, export controls, quotas and other trade barriers, including China-U.S. trade policies and the potential effects of Brexit;

●

Trade tensions, geopolitical uncertainty, or governmental actions, including those arising from the trade dispute between the U.S. and China, may lead customers to favor products from non-US companies which could put us at a competitive disadvantage and result in decreased customer demand for our products and our customers’ products;

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Restrictions or tariffs imposed on certain countries and sanctions or export controls imposed on customers or suppliers may affect our ability to sell and source our products;

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Difficulties related to the protection of our intellectual property rights in some countries;

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Public health crises, such as the COVID-19 pandemic, may affect our international operations, suppliers and customers and we may experience delays in product development, a decreased ability to support our customers and reduced design win activity if the travel restrictions or business shutdowns or slowdowns continue for an extended period of time in any of the countries in which we, our suppliers and our customers operate and do business;

●

Multiple, conflicting and changing tax and other laws and regulations that may impact both our international and domestic tax and other liabilities and result in increased complexity and costs, including the impact of the Tax Cuts and Jobs Act, which we expect to increase our effective tax rate, in part due to the impact of the requirement to capitalize and amortize foreign research and development expenses beginning in 2022;

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Longer sales cycles;

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Greater difficulty in accounts receivable collection and longer collection periods;

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High levels of distributor inventory subject to price protection and rights of return to us;

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Political and economic instability;

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Greater difficulty in hiring and retaining qualified personnel; and

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The need to have business and operations systems that can meet the needs of our international business and operating structure.

To date, substantially all of our sales to international customers and purchases of components from international suppliers have been denominated in U.S. dollars. As a result, an increase in the value of the U.S. dollar relative to foreign currencies could make our products more expensive for our international customers to purchase, thus rendering our products less competitive. Similarly, a decrease in the value of the U.S. dollar could reduce our buying power with respect to international suppliers.

Our research and development efforts are focused on a limited number of new technologies and products, and any delay in the development, or abandonment, of these technologies or products by industry participants, or their failure to achieve market acceptance, could compromise our competitive position

Our products serve as components and solutions in electronic devices in various markets. As a result, we have devoted and expect to continue to devote a large amount of resources to develop products based on new and emerging technologies and standards that will be commercially introduced in the future. Research and development expense during the six months ended July 3, 2021 was $128.8 million, or 39.4% of revenues. A number of companies are actively involved in the development of these new technologies and standards. Should any of these companies delay or abandon their efforts to develop commercially available products based on new technologies and standards, our research and development efforts with respect to these technologies and standards likely would have no appreciable value. In addition, if we do not correctly anticipate new technologies and standards, or if the products that we develop based on these new technologies and standards fail to achieve market acceptance, our competitors may be better able to address market demand than we would. Furthermore, if markets for these new technologies and standards develop later than we anticipate, or do not develop at all, demand for our products that are currently in development would suffer, resulting in lower sales of these products than we currently anticipate.

Competition within the numerous markets we target may reduce sales of our products and reduce our market share

The markets for semiconductors in general, and for mixed-signal products in particular, are intensely competitive. We expect that the market for our products will continually evolve and will be subject to rapid technological change. In addition, as we target and supply products to numerous markets and applications, we face competition from a relatively large number of competitors. We compete with AltoBeam, Broadcom, Dialog, Espressif, Infineon, MediaTek, Microchip, Nordic Semiconductor, NXP, Qualcomm, Renesas, STMicroelectronics, Synaptics, Telink, Texas Instruments and others. We expect to face competition in the future from our current competitors, other manufacturers and designers of semiconductors, and start-up semiconductor design companies. As the markets for communications products grow, we also may face competition from traditional communications device companies. These companies may enter the mixed-signal semiconductor market by introducing their own products or by entering into strategic relationships with or acquiring other existing providers of semiconductor products. In addition, large companies may restructure their operations to create separate companies or may acquire new businesses that are focused on providing the types of products we produce or acquire our customers.

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We rely on third parties to manufacture, assemble and test our products and the failure to successfully manage our relationships with our manufacturers and subcontractors would negatively impact our ability to sell our products

We do not have our own wafer fab manufacturing facilities. Therefore, we rely on third-party vendors to manufacture the products we design. We also currently rely on Asian third-party assembly subcontractors to assemble and package the silicon chips provided by the wafers for use in final products. Additionally, we rely on these offshore subcontractors for a substantial portion of the testing requirements of our products prior to shipping. We expect utilization of third-party subcontractors to continue in the future.

The cyclical nature of the semiconductor industry drives wide fluctuations in available capacity at third-party vendors. On occasion, we have been unable to adequately respond to unexpected increases in customer demand due to capacity constraints and, therefore, were unable to benefit from this incremental demand. We may be unable to obtain adequate foundry, assembly or test capacity from our third-party subcontractors to meet our customers’ delivery requirements even if we adequately forecast customer demand. For example, foundry, assembly and test capacity is currently limited due to a spike in semiconductor demand. As a result, we have recently experienced longer lead times at certain third-party foundry subcontractors. In addition, use of subcontractors outside of China has increased due to U.S.-China trade concerns. This is resulting in competing demand for capacity at our suppliers. Such conditions may adversely affect our revenue and increase our costs.

There are significant risks associated with relying on these third-party foundries and subcontractors, including:

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Failure by us, our customers or their end customers to qualify a selected supplier;

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Potential insolvency of the third-party subcontractors;

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Reduced control over delivery schedules and quality;

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Limited warranties on wafers or products supplied to us;

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Potential increases in prices or payments in advance for capacity;

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Increased need for international-based supply, logistics and financial management;

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Disruption to our supply chain resulting from cyber-attacks on our suppliers’ information technology systems;

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Their inability to supply or support new or changing packaging technologies; and

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Low test yields.

We typically do not have long-term supply contracts with our third-party vendors which obligate the vendor to perform services and supply products to us for a specific period, in specific quantities, and at specific prices. Our third-party foundry, assembly and test subcontractors typically do not guarantee that adequate capacity will be available to us within the time required to meet demand for our products. In the event that these vendors fail to meet our demand for whatever reason, we expect that it would take up to 12 months to transition performance of these services to new providers. Such a transition may also require qualification of the new providers by our customers or their end customers.

If our suppliers experience closures or reductions in their capacity utilization levels in the future, we may have difficulty sourcing materials necessary to fulfill production requirements. Public health crises, such as the COVID-19 pandemic may affect our suppliers’ production capabilities as a result of quarantines, closures of production facilities, lack of supplies or delays caused by restrictions on travel.

Most of the silicon wafers for the products that we have sold were manufactured either by Taiwan Semiconductor Manufacturing Co. (TSMC) or Semiconductor Manufacturing International Corporation (SMIC). Our customers typically complete their own qualification process. If we fail to properly balance customer demand across the existing semiconductor fabrication facilities that we utilize or are required by our foundry partners to increase, or otherwise change the number of fab lines that we utilize for our production, we might not be able to fulfill demand for our products and may need to divert our engineering resources away from new product development initiatives to support the fab line transition, which would adversely affect our operating results.

We may not be able to maintain our historical growth and may experience significant period-to-period fluctuations in our revenues and operating results, which may result in volatility in our stock price

Although we have generally experienced revenue growth in our history, we may not be able to sustain this growth. We may also experience significant period-to-period fluctuations in our revenues and operating results in the future due to a number of factors, and any such variations may cause our stock price to fluctuate. In some future period our revenues or operating results may be below the expectations of public market analysts or investors. If this occurs, our stock price may drop, perhaps significantly.

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A number of factors, in addition to those cited in other risk factors applicable to our business, may contribute to fluctuations in our revenues and operating results, including:

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The timing and volume of orders received from our customers;

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The timeliness of our new product introductions and the rate at which our new products may cannibalize our older products;

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The rate of acceptance of our products by our customers, including the acceptance of new products we may develop for integration in the products manufactured by such customers, which we refer to as "design wins";

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The time lag and realization rate between “design wins” and production orders;

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Supplier capacity constraints;

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The demand for, and life cycles of, the products incorporating our mixed-signal solutions;

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The rate of adoption of mixed-signal products in the markets we target;

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Deferrals or reductions of customer orders in anticipation of new products or product enhancements from us or our competitors or other providers of mixed-signal ICs;

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Changes in product mix;

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The average selling prices for our products could drop suddenly due to competitive offerings or competitive predatory pricing;

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The average selling prices for our products generally decline over time;

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Changes in market standards;

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Impairment charges related to inventory, equipment or other long-lived assets;

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The software used in our products, including software provided by third parties, may not meet the needs of our customers;

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Our customers may not be able to obtain other components such as capacitors (which are currently in short supply) that they need to incorporate in conjunction with our products, leading to potential downturn in the demand for our products;

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Significant legal costs to defend our intellectual property rights or respond to claims against us; and

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The rate at which new markets emerge for products we are currently developing or for which our design expertise can be utilized to develop products for these new markets.

The markets for consumer electronics, for example, are characterized by rapid fluctuations in demand and seasonality that result in corresponding fluctuations in the demand for our products that are incorporated in such devices. Additionally, the rate of technology acceptance by our customers results in fluctuating demand for our products as customers are reluctant to incorporate a new IC into their products until the new IC has achieved market acceptance. Once a new IC achieves market acceptance, demand for the new IC can quickly accelerate to a point and then level off such that rapid historical growth in sales of a product should not be viewed as indicative of continued future growth. In addition, demand can quickly decline for a product when a new IC product is introduced and receives market acceptance. Due to the various factors mentioned above, the results of any prior quarterly or annual periods should not be relied upon as an indication of our future operating performance.

The average selling prices of our products could decrease rapidly which may negatively impact our revenues and gross profit

We may experience substantial period-to-period fluctuations in future operating results due to the erosion of our average selling prices. We have reduced the average unit price of our products in anticipation of or in response to competitive pricing pressures, new product introductions by us or our competitors and other factors. If we are unable to offset any such reductions in our average selling prices by increasing our sales volumes, increasing our sales content per application or reducing production costs, our gross profit and revenues will suffer. To maintain our gross profit, we will need to develop and introduce new products and product enhancements on a timely basis and continually reduce our costs. Our failure to do so could cause our revenues and gross profit to decline.

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We depend on our key personnel to manage our business effectively in a rapidly changing market, and if we are unable to retain our current personnel and hire additional personnel, our ability to develop and successfully market our products could be harmed

We believe our future success will depend in large part upon our ability to attract and retain highly skilled managerial, engineering, sales and marketing personnel. We believe that our future success will be dependent on retaining the services of our key personnel, developing their successors and certain internal processes to reduce our reliance on specific individuals, and on properly managing the transition of key roles when they occur. There is currently a shortage of qualified personnel with significant experience in the design, development, manufacturing, marketing and sales of analog and mixed-signal products. In particular, there is a shortage of engineers who are familiar with the intricacies of the design and manufacturability of analog elements, and competition for such personnel is intense. Our key technical personnel represent a significant asset and serve as the primary source for our technological and product innovations. We may not be successful in attracting and retaining sufficient numbers of technical personnel to support our anticipated growth. The loss of any of our key employees or the inability to attract or retain qualified personnel both in the United States and internationally, including engineers, sales, applications and marketing personnel, could delay the development and introduction of, and negatively impact our ability to sell, our products.

If we are unable to develop or acquire new and enhanced products that achieve market acceptance in a timely manner, our operating results and competitive position could be harmed

Our future success will depend on our ability to develop or acquire new products and product enhancements that achieve market acceptance in a timely and cost-effective manner. The development of mixed-signal ICs is highly complex, and we have at times experienced delays in completing the development and introduction of new products and product enhancements. Successful product development and market acceptance of our products depend on a number of factors, including:

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Requirements of customers;

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Accurate prediction of market and technical requirements;

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Timely completion and introduction of new designs;

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Timely qualification and certification of our products for use in our customers' products;

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Commercial acceptance and volume production of the products into which our ICs will be incorporated;

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Availability of foundry, assembly and test capacity;

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Achievement of high manufacturing yields;

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Quality, price, performance, power use and size of our products;

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Availability, quality, price and performance of competing products and technologies;

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Our customer service, application support capabilities and responsiveness;

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Successful development of our relationships with existing and potential customers;

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Technology, industry standards or end-user preferences; and

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Cooperation of third-party software providers and our semiconductor vendors to support our chips within a system.

We cannot provide any assurance that products which we recently have developed or may develop in the future will achieve market acceptance. We have introduced to market or are in development of many products. If our products fail to achieve market acceptance, or if we fail to develop new products on a timely basis that achieve market acceptance, our growth prospects, operating results and competitive position could be adversely affected. The growth of the IoT market is dependent on the adoption of industry standards to permit devices to connect and communicate with each other. If the industry cannot agree on a common set of standards, then the growth of the IoT market may be slower than expected.

Any acquisitions we make could disrupt our business and harm our financial condition

As part of our growth and product diversification strategy, we continue to evaluate opportunities to acquire other businesses, intellectual property or technologies that would complement our current offerings, expand the breadth of our markets or enhance our technical capabilities. The acquisitions that we have made and may make in the future entail a number of risks that could materially and adversely affect our business and operating results, including:

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Problems integrating the acquired operations, technologies or products with our existing business and products;

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Diversion of management's time and attention from our core business;

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Need for financial resources above our planned investment levels;

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Difficulties in retaining business relationships with suppliers and customers of the acquired company;

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Risks associated with entering markets in which we lack prior experience;

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Risks associated with the transfer of licenses of intellectual property;

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Increased operating costs due to acquired overhead;

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Tax issues associated with acquisitions;

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Acquisition-related disputes, including disputes over earn-outs and escrows;

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Potential loss of key employees of the acquired company; and

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Potential impairment of related goodwill and intangible assets.

In particular, the extent of the impact of the COVID-19 pandemic on our ability to complete and integrate any future acquisition into our business is unpredictable and will depend on future developments, including the duration, severity and spread of the pandemic, related restrictions on travel and transportation, and other actions that may be taken by governmental authorities. Future acquisitions also could cause us to incur debt or contingent liabilities or cause us to issue equity securities that could negatively impact the ownership percentages of existing shareholders.

We may be the victim of business disruptions and security breaches, including cyber-attacks, which could lead to liability or could damage our reputation and financial results

Information technology system and/or network disruptions, regardless of the cause, but including acts of sabotage, error, or other actions, could harm the company’s operations. Failure to effectively prevent, detect, and recover from security breaches, including cyber-attacks, could result in the misuse of company assets, disruption to the company, diversion of management resources, regulatory inquiries, legal claims or proceedings, reputational damage, loss of sales and other costs to the company. We routinely face attacks that attempt to breach our security protocols, gain access to or disrupt our computerized systems or steal proprietary company, customer, partner or employee information. These attacks are sometimes successful. These attacks may be due to security breaches, employee error, theft, malfeasance, phishing schemes, ransomware, faulty password or data security management, or other irregularities. The theft, loss, destruction, unavailability or misuse of personal or business data collected, used, stored or transferred by us to run our business could result in increased security costs or costs related to defending legal claims. Industrial espionage, theft or loss of our intellectual property data could lead to counterfeit products or harm the competitive position of our products and services. Costs to implement, test and maintain measures to promote compliance with applicable privacy and data security laws as well as to protect the overall security of our system could be significant. Attempted or successful attacks against our products and services could damage our reputation with customers or users and reduce demand for our products and services.

Additionally, there is an increased risk that we may experience cybersecurity-related events such as COVID-19 themed phishing attacks and other security challenges as a result of most of our employees and our service providers working remotely from non-corporate managed networks during the ongoing COVID-19 pandemic and potentially continuing working remotely even after the COVID-19 pandemic has subsided.

Failure to manage our distribution channel relationships could impede our future growth

The future growth of our business will depend in large part on our ability to manage our relationships with current and future distributors and sales representatives, develop additional channels for the distribution and sale of our products and manage these relationships. During the six months ended July 3, 2021, 81% of our revenue was derived from distributors (and 59% of our revenue was derived from our three largest distributors). As we execute our indirect sales strategy, we must manage the potential conflicts that may arise with our direct sales efforts. For example, conflicts with a distributor may arise when a customer begins purchasing directly from us rather than through the distributor. The inability to successfully execute or manage a multi-channel sales strategy could impede our future growth. In addition, relationships with our distributors often involve the use of price protection and inventory return rights. This often requires a significant amount of sales management’s time and system resources to manage properly.

We do not have long-term commitments from our customers

Our customers regularly evaluate alternative sources of supply in order to diversify their supplier base, which increases their negotiating leverage with us and protects their ability to secure these components. We believe that any expansion of our customers' supplier bases could have an adverse effect on the prices we are able to charge and volume of product that we are able to sell to our customers, which would negatively affect our revenues and operating results.

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Customers may decide not to purchase our products at all, purchase fewer products than they did in the past, or alter their purchasing patterns, particularly because:

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We do not have material long-term purchase contracts with our customers;

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Substantially all of our sales to date have been made on a purchase order basis, which permits our customers to cancel, change or delay product purchase commitments with little or no notice to us and without penalty;

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Some of our customers may have efforts underway to actively diversify their vendor base which could reduce purchases of our products; and

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Some of our customers have developed or acquired products that compete directly with products these customers purchase from us, which could affect our customers' purchasing decisions in the future.

We are subject to increased inventory risks and costs because we build our products based on forecasts provided by customers before receiving purchase orders for the products

In order to ensure availability of our products for some of our largest customers, we start the manufacturing of our products in advance of receiving purchase orders based on forecasts provided by these customers. However, these forecasts do not represent binding purchase commitments and we do not recognize sales for these products until they are shipped to the customer. As a result, we incur inventory and manufacturing costs in advance of anticipated sales. Because demand for our products may not materialize, manufacturing based on forecasts subjects us to increased risks of high inventory carrying costs, increased obsolescence and increased operating costs. These inventory risks are exacerbated when our customers purchase indirectly through contract manufacturers or hold component inventory levels greater than their consumption rate because this causes us to have less visibility regarding the accumulated levels of inventory for such customers. A resulting write-off of unusable or excess inventories would adversely affect our operating results.

Our products are complex and may contain errors which could lead to liability, an increase in our costs and/or a reduction in our revenues

Our products are complex and may contain errors, particularly when first introduced and/or when new versions are released. Our products are increasingly designed in more complex processes, including higher levels of software and hardware integration in modules and system-level solutions and/or include elements provided by third parties which further increase the risk of errors. We rely primarily on our in-house testing personnel to design test operations and procedures to detect any errors or vulnerabilities prior to delivery of our products to our customers.

Should problems occur in the operation or performance of our products, we may experience delays in meeting key introduction dates or scheduled delivery dates to our customers. These errors could also cause significant re-engineering costs, the diversion of our engineering personnel’s attention from our product development efforts and cause significant customer relations and business reputation problems. Any defects could result in refunds, product replacement, product recall or other liability. Any of the foregoing could impose substantial costs and harm our business.

Product liability, data breach or cyber liability claims may be asserted with respect to our products. Many of our products focus on wireless connectivity and the IoT market and such connectivity may make these products particularly susceptible to cyber-attacks. Our products are typically sold at prices that are significantly lower than the cost of the end-products into which they are incorporated. A defect, failure or vulnerability in our product could cause failure in our customer’s end-product, so we could face claims for damages that are disproportionately higher than the revenues and profits we receive from the products involved. Furthermore, product liability risks are particularly significant with respect to medical and automotive applications because of the risk of serious harm to users of these end-products. There can be no assurance that any insurance we maintain will sufficiently protect us from such claims.

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We may be subject to information technology failures that could damage our reputation, business operations and financial condition

We rely on information technology for the effective operation of our business. Our systems are subject to damage or interruption from a number of potential sources, including natural disasters, accidents, power disruptions, telecommunications failures, acts of terrorism or war, computer viruses, theft, physical or electronic break-ins, cyber-attacks, sabotage, vandalism, or similar events or disruptions. Our security measures may not detect or prevent such security breaches. Any such compromise of our information security could result in the theft or unauthorized publication or use of our confidential business or proprietary information, result in the unauthorized release of customer, supplier or employee data, result in a violation of privacy or other laws, expose us to a risk of litigation or damage our reputation. In addition, our inability to use or access information systems at critical points in time could unfavorably impact the timely and efficient operation of our business, which could negatively affect our business and operating results.

Third parties with which we conduct business, such as foundries, assembly and test contractors, distributors and customers, have access to certain portions of our sensitive data. In the event that these third parties do not properly safeguard our data that they hold, security breaches could result and negatively impact our reputation, business operations and financial results. Additionally, a successful cyber-attack against one of these third-parties’ information technology systems may disrupt our supply chain.

Our customers require our products to undergo a lengthy and expensive qualification process without any assurance of product sales

Prior to purchasing our products, our customers require that our products undergo an extensive qualification process, which involves testing of the products in the customer's system as well as rigorous reliability testing. This qualification process may continue for six months or longer. However, qualification of a product by a customer does not ensure any sales of the product to that customer. Even after successful qualification and sales of a product to a customer, a subsequent revision to the product or software, changes in the IC’s manufacturing process or the selection of a new supplier by us may require a new qualification process, which may result in delays and in us holding excess or obsolete inventory. After our products are qualified, it can take an additional six months or more before the customer commences volume production of components or devices that incorporate our products. Despite these uncertainties, we devote substantial resources, including design, engineering, sales, marketing and management efforts, toward qualifying our products with customers in anticipation of sales. If we are unsuccessful or delayed in qualifying any of our products with a customer, such failure or delay would preclude or delay sales of such product to the customer, which may impede our growth and cause our business to suffer.

Our inability to manage growth could materially and adversely affect our business

Our past growth has placed, and any future growth of our operations will continue to place, a significant strain on our management personnel, systems and resources. We anticipate that we will need to implement a variety of new and upgraded sales, operational and financial enterprise-wide systems, information technology infrastructure, procedures and controls, including the improvement of our accounting and other internal management systems to manage this growth and maintain compliance with regulatory guidelines, including Sarbanes-Oxley Act requirements. To the extent our business grows, our internal management systems and processes will need to improve to ensure that we remain in compliance. We also expect that we will need to continue to expand, train, manage and motivate our workforce. All of these endeavors will require substantial management effort, and we anticipate that we will require additional management personnel and internal processes to manage these efforts and to plan for the succession from time to time of certain persons who have been key management and technical personnel. If we are unable to effectively manage our expanding global operations, including our international headquarters in Singapore, our business could be materially and adversely affected.

We are subject to risks relating to product concentration

We derive a substantial portion of our revenues from a limited number of products, and we expect these products to continue to account for a large percentage of our revenues in the near term. Continued market acceptance of these products, is therefore, critical to our future success. In addition, substantially all of our products that we have sold include technology related to one or more of our issued U.S. patents. If these patents are found to be invalid or unenforceable, our competitors could introduce competitive products that could reduce both the volume and price per unit of our products. Our business, operating results, financial condition and cash flows could therefore be adversely affected by:

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A decline in demand for any of our more significant products;

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Failure of our products to achieve continued market acceptance;

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Competitive products;

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New technological standards or changes to existing standards that we are unable to address with our products;

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A failure to release new products or enhanced versions of our existing products on a timely basis; and

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The failure of our new products to achieve market acceptance.

Any dispositions could harm our financial condition

On April 22, 2021, we entered into an Asset Purchase Agreement pursuant to which Skyworks Solutions has agreed to acquire certain assets, rights, and properties, and assume certain liabilities, comprising our infrastructure and automotive business for $2.75 billion in cash. The transaction closed on July 26, 2021. This disposition and any other disposition of a business or product line would entail a number of risks that could materially and adversely affect our business and operating results, including:

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Diversion of management's time and attention from our core business;

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Difficulties separating the divested business;

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Risks to relations with customers who previously purchased products from our disposed product line;

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Reduced leverage with suppliers due to reduced aggregate volume;

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Risks related to employee relations;

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Risks that the disposition is not completed on the expected timeline, or at all;

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Risks associated with the transfer and licensing of intellectual property;

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Risks that we do not realize the anticipated benefits from the disposition;

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Risks from third-party claims arising out of the disposition;

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Security risks and other liabilities related to the transition services provided in connection with the disposition;

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Tax issues associated with dispositions; and

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Disposition-related disputes, including disputes over earn-outs and escrows.

Most of our current manufacturers, assemblers, test service providers, distributors and customers are concentrated in the same geographic region, which increases the risk that a natural disaster, epidemic, labor strike, war or political unrest could disrupt our operations or sales

Most of our foundries and several of our assembly and test subcontractors’ sites are located in Taiwan and most of our other foundry, assembly and test subcontractors are located in the Pacific Rim region. In addition, many of our customers are located in the Pacific Rim region. The risk of earthquakes in Taiwan and the Pacific Rim region is significant due to the proximity of major earthquake fault lines in the area. Earthquakes, tsunamis, fire, flooding, lack of water or other natural disasters, an epidemic such as the current COVID-19 outbreak, political unrest, war, labor strikes or work stoppages in countries where our semiconductor manufacturers, assemblers and test subcontractors are located, likely would result in the disruption of our foundry, assembly or test capacity. There can be no assurance that alternate capacity could be obtained on favorable terms, if at all.

A natural disaster, epidemic, labor strike, war or political unrest where our customers’ facilities are located would likely reduce our sales to such customers. In addition, a significant portion of the assembly and testing of our products occurs in South Korea. Any disruption resulting from these events, including the COVID-19 pandemic, could also cause significant delays in shipments of our products until we are able to shift our manufacturing, assembling or testing from the affected subcontractor to another third-party vendor. If the COVID-19 pandemic continues to progress in ways that significantly disrupt the manufacture, shipment and sales of our products or the products of our customers, this may materially negatively impact our operating results for subsequent periods. For example, if the travel restrictions or business shutdowns or slowdowns continue for an extended period of time in Taiwan, South Korea or the other countries in which our current manufacturers, assemblers, test service providers, distributors and customers are located, we may experience delays in product production, a decreased ability to support our customers, reduced design win activity, and overall lack of productivity. Our customers may also experience closures of their manufacturing facilities or inability to obtain other components, either of which could negatively impact demand for our solutions.

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The semiconductor manufacturing process is highly complex and, from time to time, manufacturing yields may fall below our expectations, which could result in our inability to satisfy demand for our products in a timely manner and may decrease our gross profit due to higher unit costs

The manufacturing of our products is a highly complex and technologically demanding process. Although we work closely with our foundries and assemblers to minimize the likelihood of reduced manufacturing yields, we have from time to time experienced lower than anticipated manufacturing yields. Changes in manufacturing processes or the inadvertent use of defective or contaminated materials could result in lower than anticipated manufacturing yields or unacceptable performance deficiencies, which could lower our gross profit. If our foundries fail to deliver fabricated silicon wafers of satisfactory quality in a timely manner, we will be unable to meet our customers' demand for our products in a timely manner, which would adversely affect our operating results and damage our customer relationships.

We depend on our customers to support our products, and some of our customers offer competing products

We rely on our customers to provide hardware, software, intellectual property indemnification and other technical support for the products supplied by our customers. If our customers do not provide the required functionality or if our customers do not provide satisfactory support for their products, the demand for these devices that incorporate our products may diminish or we may otherwise be materially adversely affected. Any reduction in the demand for these devices would significantly reduce our revenues.

In certain products, some of our customers offer their own competitive products. These customers may find it advantageous to support their own offerings in the marketplace in lieu of promoting our products.

We have limited resources compared to some of our current and potential competitors and we may not be able to compete effectively and increase market share

Some of our current and potential competitors have longer operating histories, significantly greater resources and name recognition and a larger base of customers than we have. As a result, these competitors may have greater credibility with our existing and potential customers. They also may be able to adopt more aggressive pricing policies and devote greater resources to the development, promotion and sale of their products than we can to ours. In addition, some of our current and potential competitors have already established supplier or joint development relationships with the decision makers at our current or potential customers. These competitors may be able to leverage their existing relationships to discourage their customers from purchasing products from us or persuade them to replace our products with their products. Our competitors may also offer bundled solutions offering a more complete product despite the technical merits or advantages of our products. These competitors may elect not to support our products which could complicate our sales efforts. We also face increased competition as a result of China actively promoting its domestic semiconductor industry through policy changes and investment. These actions, as well as China-U.S. trade barriers, may restrict our participation in the China market or may prevent us from competing effectively with Chinese companies or companies from other countries that China favors over the United States. Furthermore, our current or potential competitors may be acquired by third parties with greater available resources and the ability to initiate or withstand substantial price competition, which may include price concessions, delayed payment terms, financing terms, or other terms and conditions that are more enticing to potential customers. These and other competitive pressures may prevent us from competing successfully against current or future competitors, and may materially harm our business. Competition could decrease our prices, reduce our sales, lower our gross profit and/or decrease our market share.

Changes in the Privacy and Data Security/Protection Laws Could Have an Adverse Effect on our Operations

Federal, state and international privacy-related or data protection laws and regulations could have an adverse effect on our operations. Complying with these laws and the possibility of proceedings against us by governmental entities or others in relation to these laws could increase operational costs. In May 2018, the European Union’s General Data Protection Regulation (“GDPR”) went into effect, replacing the EU’s 1995 Data Protection Directive. The costs of compliance with the GDPR and the potential for fines and penalties in the event of a breach of the GDPR may have an adverse effect on our operations.

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Our products must conform to industry standards and technology in order to be accepted by end users in our markets

Generally, our products comprise only a part of a device. All components of such devices must uniformly comply with industry standards in order to operate efficiently together. We depend on companies that provide other components of the devices to support prevailing industry standards. Many of these companies are significantly larger and more influential in affecting industry standards than we are. Some industry standards may not be widely adopted or implemented uniformly, and competing standards may emerge that may be preferred by our customers or end users. If larger companies do not support the same industry standards that we do, or if competing standards emerge, market acceptance of our products could be adversely affected which would harm our business.

Products for certain applications are based on industry standards that are continually evolving. Our ability to compete in the future will depend on our ability to identify and ensure compliance with these evolving industry standards. The emergence of new industry standards could render our products incompatible with products developed by other suppliers. As a result, we could be required to invest significant time and effort and to incur significant expense to redesign our products to ensure compliance with relevant standards. If our products are not in compliance with prevailing industry standards for a significant period of time, we could miss opportunities to achieve crucial design wins. For example, the IoT market is relatively new and is continuously evolving. Furthermore, products in the IoT market frequently require interoperability across multiple standards. We may need to adjust our portfolio to meet the needs of this evolving market through acquisitions or significant new investments in research and development.

Our pursuit of necessary technological advances may require substantial time and expense. We may not be successful in developing or using new technologies or in developing new products or product enhancements that achieve market acceptance. If our products fail to achieve market acceptance, our growth prospects, operating results and competitive position could be adversely affected.

Intellectual Property Risks

Significant litigation over intellectual property in our industry may cause us to become involved in costly and lengthy litigation which could adversely affect our business

The semiconductor and software industries have experienced significant litigation involving patents and other intellectual property rights. From time to time, third parties, including non-practicing entities, allege intellectual property infringement by our products, our customers’ products, or products using technologies or communications standards used in our industry. We also receive communications from customers or suppliers requesting indemnification for allegations brought against them by third parties. Some of these allegations have resulted, and may result in the future, in our involvement in litigation. We have certain contractual obligations to defend and indemnify our customers from certain infringement claims. We also have been involved in litigation to protect our intellectual property rights in the past and may become involved in such litigation again in the future.

Given the unpredictable nature of litigation and the complexity of the technology, we may not prevail in any such litigation. Legal proceedings could subject us to significant liability, invalidate our proprietary rights, or harm our businesses and our ability to compete. Legal proceedings initiated by us to protect our intellectual property rights could also result in counterclaims or countersuits against us. Any litigation, regardless of its outcome or merit, could be time-consuming and expensive to resolve and could divert our management's time and attention. Intellectual property litigation also could force us to take specific actions, including:

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Cease using, selling or manufacturing certain products, services or processes;

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Attempt to obtain a license, which license may require the payment of substantial royalties or may not be available on reasonable terms or at all;

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Incur significant costs, time delays and lost business opportunities to develop alternative technologies or redesign products; or

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Pursue legal remedies with third parties to enforce our indemnification rights, which may not adequately protect our interests.

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We may be unable to protect our intellectual property, which would negatively affect our ability to compete

Our products rely on our proprietary technology, and we expect that future technological advances made by us will be critical to sustain market acceptance of our products. Therefore, we believe that the protection of our intellectual property rights is and will continue to be important to the success of our business. We rely on a combination of patent, copyright, trademark and trade secret laws and restrictions on disclosure to protect our intellectual property rights. We also enter into confidentiality or license agreements with our employees, consultants, intellectual property providers and business partners, and control access to and distribution of our documentation and other proprietary information. Despite these efforts, unauthorized parties may attempt to copy or otherwise obtain and use our proprietary technology. Monitoring unauthorized use of our technology is difficult, and we cannot be certain that the steps we have taken will prevent unauthorized use of our technology, particularly in foreign countries where the laws may not protect our proprietary rights as fully as in the United States. We cannot be certain that patents will be issued as a result of our pending applications nor can we be certain that any issued patents would protect or benefit us or give us adequate protection from competing products. For example, issued patents may be circumvented or challenged and declared invalid or unenforceable. We also cannot be certain that others will not develop effective competing technologies on their own.

Our products incorporate technology licensed from third parties

We incorporate technology (including software) licensed from third parties in our products. We could be subjected to claims of infringement regardless of our lack of involvement in the development of the licensed technology. Although a third-party licensor is typically obligated to indemnify us if the licensed technology infringes on another party’s intellectual property rights, such indemnification is typically limited in amount and may be worthless if the licensor becomes insolvent. See Significant litigation over intellectual property in our industry may cause us to become involved in costly and lengthy litigation which could seriously harm our business. Furthermore, any failure of third-party technology to perform properly would adversely affect sales of our products incorporating such technology.

Liquidity and Credit Risks

We are subject to credit risks related to our accounts receivable

We do not generally obtain letters of credit or other security for payment from customers, distributors or contract manufacturers. Accordingly, we are not protected against accounts receivable default or bankruptcy by these entities. Our ten largest customers or distributors represent a substantial majority of our accounts receivable. If any such customer or distributor, or a material portion of our smaller customers or distributors, were to become insolvent or otherwise not satisfy their obligations to us, we could be materially harmed.

Our convertible senior notes could adversely affect our operating results and financial condition

Upon conversion, our convertible senior notes may be settled in cash, shares of our common stock or a combination of cash and shares, at our election. We intend to settle the principal amount of the notes in cash. If we do not have adequate cash available, we may not be able to settle the principal amount in cash. In such case, we will be required to settle the principal amount in stock, which would result in immediate, and likely material, dilution to the ownership interests of our existing stockholders. Any sales in the public market of our common stock issuable upon such conversion could adversely affect prevailing market prices of our common stock.

Following any conclusion that we no longer have the ability to settle the convertible senior notes in cash, we will be required on a going forward basis to change our accounting policy for earnings per share from the treasury stock method to the if-converted method. Earnings per share may be lower under the if-converted method as compared to the treasury stock method.

The principal balance of the convertible senior notes was separated into liability and equity components, which were recorded initially at fair value. The excess of the principal amount of the liability component over its carrying amount represents the debt discount, which is accreted to interest expense over the term of the notes using the effective interest method. Accordingly, we will report higher interest expense because of the recognition of both the debt discount amortization and the notes’ coupon interest.

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Our debt could adversely affect our operations and financial condition

We believe we have the ability to service our debt, but our ability to make the required payments thereunder when due depends upon our future performance, which will be subject to general economic conditions, industry cycles and other factors affecting our operations, including risk factors described herein, such as the potential implications of the COVID-19 pandemic, many of which are beyond our control. Our credit facility also contains covenants, including financial covenants. If we breach any of the covenants under our credit facility and do not obtain appropriate waivers, then, subject to any applicable cure periods, our outstanding indebtedness thereunder could be declared immediately due and payable.

We could seek to raise additional debt or equity capital in the future, but additional capital may not be available on terms acceptable to us, or at all

We believe that our existing cash, cash equivalents, investments and credit under our credit facility will be sufficient to meet our working capital needs, capital expenditures, investment requirements and commitments for at least the next 12 months. However, our ability to borrow further under the credit facility is dependent upon our ability to satisfy various conditions, covenants and representations. It is possible that we may need to raise additional funds to finance our activities or to facilitate acquisitions of other businesses, products, intellectual property or technologies. We believe we could raise these funds, if needed, by selling equity or debt securities to the public or to selected investors. In addition, even though we may not need additional funds, we may still elect to sell additional equity or debt securities or obtain credit facilities for other reasons. However, we may not be able to obtain additional funds on favorable terms, or at all, particularly during financial market instability related to the COVID-19 pandemic. If we decide to raise additional funds by issuing equity or convertible debt securities, the ownership percentages of existing shareholders would be reduced.

Stock and Governance Risks

Our stock price may be volatile

The market price of our common stock has been volatile in the past and may be volatile in the future. The market price of our common stock may be significantly affected by the following factors:

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Actual or anticipated fluctuations in our operating results;

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Changes in financial estimates by securities analysts or our failure to perform in line with such estimates;

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Changes in market valuations of other technology companies, particularly semiconductor companies;

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Announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures or capital commitments;

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Introduction of technologies or product enhancements that reduce the need for our products;

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The loss of, or decrease in sales to, one or more key customers;

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A large sale of stock by a significant shareholder;

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Dilution from the issuance of our stock in connection with acquisitions;

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The addition or removal of our stock to or from a stock index fund;

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Departures of key personnel;

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The required expensing of stock awards; and

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The required changes in our reported revenue and revenue recognition accounting policy under ASC Topic 606, Revenue from Contracts with Customers.

The stock market has experienced extreme volatility that often has been unrelated to the performance of particular companies. These market fluctuations may cause our stock price to fall regardless of our performance.

Provisions in our charter documents and Delaware law could prevent, delay or impede a change in control of us and may reduce the market price of our common stock

Provisions of our certificate of incorporation and bylaws could have the effect of discouraging, delaying or preventing a merger or acquisition that a stockholder may consider favorable. For example, our certificate of incorporation and bylaws provide for:

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The division of our Board of Directors into three classes to be elected on a staggered basis, one class each year;

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The ability of our Board of Directors to issue shares of our preferred stock in one or more series without further authorization of our stockholders;

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●

A prohibition on stockholder action by written consent;

●

Elimination of the right of stockholders to call a special meeting of stockholders;

●

A requirement that stockholders provide advance notice of any stockholder nominations of directors or any proposal of new business to be considered at any meeting of stockholders; and

●

A requirement that a supermajority vote be obtained to amend or repeal certain provisions of our certificate of incorporation.

We also are subject to the anti-takeover laws of Delaware which may discourage, delay or prevent someone from acquiring or merging with us, which may adversely affect the market price of our common stock.

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

Our registration statement (Registration No. 333-94853) under the Securities Act of 1933, as amended, relating to our initial public offering of our common stock became effective on March 23, 2000.

The following table summarizes repurchases of our common stock during the three months ended July 3, 2021 (in thousands, except per share amounts):


				Total Number of	Approximate Dollar
	Total			Shares Purchased as	Value of Shares that
	Number of	Average Price		Part of Publicly	May Yet Be
	Shares	Paid per		Announced Plans	Purchased Under the
Period	Purchased	Share		or Programs	Plans or Programs
April 4, 2021 – May 1, 2021	—	$	—	—	$	150,000

May 2, 2021 – May 29, 2021	61	$	132.50	61	$	141,912

May 30, 2021 – July 3, 2021	81	$	134.85	81	$	131,021
Total	142	$	133.34	142

Our share repurchase program authorizes repurchases up to $150 million through December 2021. The program allows for repurchases to be made in the open market or in private transactions, including structured or accelerated transactions, subject to applicable legal requirements and market conditions.

Item 3. Defaults Upon Senior Securities

Not applicable

Item 4. Mine Safety Disclosures

Not applicable

Item 5. Other Information

Not applicable

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Item 6. Exhibits

The following exhibits are filed as part of this report:


Exhibit Number
2.1*		Asset Purchase Agreement dated April 22, 2021 between Silicon Laboratories Inc. and Skyworks Solutions, Inc. (filed as Exhibit 2.1 to the Form 8-K filed on April 22, 2021).

3.1*		Form of Fourth Amended and Restated Certificate of Incorporation of Silicon Laboratories Inc. (filed as Exhibit 3.1 to the Registration Statement on Form S-1 (Securities and Exchange Commission File No. 333-94853) (the “IPO Registration Statement”)).

3.2*		Fifth Amended and Restated Bylaws of Silicon Laboratories Inc. (filed as Exhibit 3.1 to the Form 8-K filed on February 3, 2021).

4.1*		Specimen certificate for shares of common stock (filed as Exhibit 4.1 to the IPO Registration Statement).

4.2*		Indenture between Silicon Laboratories Inc. and Wilmington Trust, National Association, as trustee, dated March 6, 2017 (filed as Exhibit 4.1 to the Form 8-K filed on March 6, 2017).

4.3*		Form of 1.375% Convertible Senior Note due 2022 (filed as Exhibit 4.2 to the Form 8-K filed on March 6, 2017).

4.4*		Indenture between Silicon Laboratories Inc. and Wilmington Trust, National Association, as trustee, dated June 1, 2020 (filed as Exhibit 4.1 to the Form 8-K filed on June 1, 2020).

4.5*		Form of 0.625% Convertible Senior Note due 2025 (filed as Exhibit 4.2 to the Form 8-K filed on June 1, 2020).

10.1*		Silicon Laboratories Inc. Form of CEO Severance Agreement (filed as Exhibit 10.1 to the Form 8-K filed on May 17, 2021).

10.2*		Silicon Laboratories Inc. Form of Executive Severance Agreement (filed as Exhibit 10.2 to the Form 8-K filed on May 17, 2021).

10.3*		Silicon Laboratories Inc. Form of Performance Stock Units Grant Notice and Global PSU Award Agreement under Registrant’s 2009 Stock Incentive Plan, as amended and restated (filed as Exhibit 10.3 to the Form 8-K filed on May 17, 2021).

10.4*		Silicon Laboratories Inc. 2009 Stock Incentive Plan (As Amended and Restated on April 22, 2021) (filed as Exhibit 4.3 to the Form S-8 filed on May 5, 2021).

10.5*		Silicon Laboratories Inc. 2009 Employee Stock Purchase Plan (As Amended and Restated on April 22, 2021) (filed as Exhibit 4.4 to the Form S-8 filed on May 5, 2021).

31.1		Certification of the Principal Executive Officer, as required by Section 302 of the Sarbanes-Oxley Act of 2002.

31.2		Certification of the Principal Financial Officer, as required by Section 302 of the Sarbanes-Oxley Act of 2002.

32.1		Certification as required by Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS		Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document

101.SCH		Inline XBRL Taxonomy Extension Schema Document

101.CAL		Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.LAB		Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE		Inline XBRL Taxonomy Extension Presentation Linkbase Document

101.DEF		Inline XBRL Taxonomy Extension Definition Linkbase Document

104		Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

* Incorporated herein by reference to the indicated filing.

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SIGNATURES

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

		SILICON LABORATORIES INC.


July 28, 2021		/s/ G. Tyson Tuttle
Date		G. Tyson Tuttle
		Chief Executive Officer
		(Principal Executive Officer)


July 28, 2021		/s/ John C. Hollister
Date		John C. Hollister
		Senior Vice President and
		Chief Financial Officer
		(Principal Financial Officer)


July 28, 2021		/s/ Mark D. Mauldin
Date		Mark D. Mauldin
		Chief Accounting Officer
		(Principal Accounting Officer)