10-Q

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 April 3, 2021

or

☐ 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: 001-38603

SONOS, INC.

(Exact name of registrant as specified in its charter)

Delaware		03-0479476
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)
614 Chapala Street	Santa Barbara	CA	93101
(Address of Principal Executive Offices)			(Zip Code)

(805) 965-3001

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, $0.001 par value	SONO	The Nasdaq Stock Market LLC

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

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

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

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 May 1, 2021, the registrant had 124,597,844 shares of common stock outstanding.

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (unaudited)
	Condensed consolidated balance sheets	3
	Condensed consolidated statements of operations and comprehensive income (loss)	4
	Condensed consolidated statements of stockholders' equity	5
	Condensed consolidated statements of cash flows	6
	Notes to condensed consolidated financial statements	7
Item 2.	Management’s discussion and analysis of financial condition and results of operations	20
Item 3.	Quantitative and qualitative disclosures about market risk	35
Item 4.	Controls and procedures	36
PART II. OTHER INFORMATION
Item 1.	Legal proceedings	37
Item 1A.	Risk factors	37
Item 2.	Unregistered sales of equity securities and use of proceeds	53
Item 6.	Exhibit index	54
SIGNATURES		55

PART I. FINANCIAL INFORMATION

Item 1.    Financial Statements

SONOS, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(unaudited, in thousands, except par values)
	As of
	April 3, 2021		October 3, 2020
Assets
Current assets:
Cash and cash equivalents	$	638,927	$	407,100
Restricted cash	192		191
Accounts receivable, net of allowances	69,690		54,935
Inventories	139,581		180,830
Prepaids and other current assets	31,763		17,321
Total current assets	880,153		660,377
Property and equipment, net	65,509		60,784
Operating lease right-of-use assets	39,061		42,342
Goodwill	15,545		15,545
Intangible assets, net	25,434		26,394
Deferred tax assets	1,984		1,800
Other noncurrent assets	20,600		8,809
Total assets	$	1,048,286	$	816,051
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable	$	203,585	$	250,328
Accrued expenses	61,659		45,049
Accrued compensation	46,665		44,517
Short-term debt	—		6,667
Deferred revenue, current	18,392		15,304
Other current liabilities	40,770		31,150
Total current liabilities	371,071		393,015
Operating lease liabilities, noncurrent	39,361		50,360
Long-term debt	—		18,251
Deferred revenue, noncurrent	52,497		47,085
Deferred tax liabilities	2,394		2,434
Other noncurrent liabilities	3,695		7,067
Total liabilities	469,018		518,212
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, $0.001 par value	126		114
Treasury stock	(26,023)		(20,886)
Additional paid-in capital	684,988		548,993
Accumulated deficit	(78,979)		(228,492)
Accumulated other comprehensive loss	(844)		(1,890)
Total stockholders’ equity	579,268		297,839
Total liabilities and stockholders’ equity	$	1,048,286	$	816,051

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

SONOS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)
(unaudited, in thousands, except share and per share amounts)
	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
Revenue	$	332,949	$	175,098	$	978,532	$	737,181
Cost of revenue	167,173		102,089		513,331		436,552
Gross profit	165,776		73,009		465,201		300,629
Operating expenses
Research and development	56,370		49,593		108,717		102,120
Sales and marketing	57,205		50,504		131,658		127,928
General and administrative	39,806		26,119		75,047		56,327
Total operating expenses	153,381		126,216		315,422		286,375
Operating income (loss)	12,395		(53,207)		149,779		14,254
Other income (expense), net
Interest income	44		874		80		1,873
Interest expense	(182)		(374)		(448)		(827)
Other income (expense), net	(1,578)		(1,423)		2,680		3,001
Total other income (expense), net	(1,716)		(923)		2,312		4,047
Income (loss) before provision for (benefit from) income taxes	10,679		(54,130)		152,091		18,301
Provision for (benefit from) income taxes	(6,542)		(1,810)		2,578		(153)
Net income (loss)	$	17,221	$	(52,320)	$	149,513	$	18,454
Net income (loss) attributable to common stockholders:
Basic	$	17,221	$	(52,320)	$	149,513	$	18,454
Diluted	$	17,221	$	(52,320)	$	149,513	$	18,454
Net income (loss) per share attributable to common stockholders:
Basic	$	0.14	$	(0.48)	$	1.26	$	0.17
Diluted	$	0.12	$	(0.48)	$	1.09	$	0.16
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders:
Basic	121,880,615		109,515,049		118,745,569		109,249,866
Diluted	143,055,546		109,515,049		136,849,846		117,819,569
Total comprehensive income (loss)
Net income (loss)	$	17,221	$	(52,320)	$	149,513	$	18,454
Change in foreign currency translation adjustment	199		(431)		1,046		(950)
Comprehensive income (loss)	$	17,420	$	(52,751)	$	150,559	$	17,504

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

SONOS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
(unaudited, in thousands, except share amounts)
	Common Stock			Additional Paid-In Capital		Treasury Stock			Accumulated Deficit		Accumulated Other Comprehensive Loss		Total Stockholders’ Equity
	Shares	Amount				Shares	Amount
Balance at October 3, 2020	113,915,233	$	114	$	548,993	(1,571,138)	$	(20,886)	$	(228,492)	$	(1,890)	$	297,839
Issuance of common stock pursuant to equity incentive plans	7,075,338	7		69,498		—	—		—		—		69,505
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs")	—	—		—		(307,980)	(5,118)		—		—		(5,118)
Stock-based compensation expense	—	—		14,844		—	—		—		—		14,844
Net income	—	—		—		—	—		132,292		—		132,292
Change in foreign currency translation adjustment	—	—		—		—	—		—		847		847
Balance at January 2, 2021	120,990,571	$	121	$	633,335	(1,879,118)	$	(26,004)	$	(96,200)	$	(1,043)	$	510,209
Issuance of common stock pursuant to equity incentive plans	5,743,359	6		49,655		—	—		—		—		$	49,661
Retirement of treasury stock	(1,017,308)	(1)		(14,365)		1,017,308	14,366		—		—		—
Repurchase of common stock	—	—		—		(19,547)	(682)		—		—		(682)
Repurchase of common stock related to shares withheld for tax in connection with vesting of RSUs	—	—		—		(387,206)	(13,703)		—		—		(13,703)
Stock-based compensation expense	—	—		16,363		—	—		—		—		16,363
Net income	—	—		—		—	—		17,221		—		17,221
Change in foreign currency translation adjustment	—	—		—		—	—		—		199		199
Balance at April 3, 2021	125,716,622	$	126	$	684,988	(1,268,563)	$	(26,023)	$	(78,979)	$	(844)	$	579,268
Balance at September 28, 2019	109,623,417	$	110	$	502,757	(1,020,775)	$	(13,498)	$	(208,377)	$	(64)	$	280,928
Issuance of common stock pursuant to equity incentive plans	1,561,696	1		7,968		—	—		—		—		7,969
Repurchase of common stock	—	—		—		(227,241)	(2,926)		—		—		(2,926)
Repurchase of common stock related to shares withheld for tax in connection with vesting of RSUs	—	—		—		(144,908)	(2,152)		—		—		(2,152)
Stock-based compensation expense	—	—		13,204		—	—		—		—		13,204
Net income	—	—		—		—	—		70,775		—		70,775
Change in foreign currency translation adjustment	—	—		—		—	—		—		(519)		(519)
Balance at December 28, 2019	111,185,113	$	111	$	523,929	(1,392,924)	$	(18,576)	$	(137,602)	$	(583)	$	367,279
Issuance of common stock pursuant to equity incentive plans	1,548,614	2		4,614		—	—		—		—		4,616
Repurchase of common stock	—	—		—		(2,309,604)	(30,290)		—		—		(30,290)
Repurchase of common stock related to shares withheld for tax in connection with vesting of RSUs	—	—		—		(182,124)	(2,444)		—		—		(2,444)
Stock-based compensation expense	—	—		13,394		—	—		—		—		13,394
Net loss	—	—		—		—	—		(52,320)		—		(52,320)
Change in foreign currency translation adjustment	—	—		—		—	—		—		(431)		(431)
Balance at March 28, 2020	112,733,727	$	113	$	541,937	(3,884,652)	$	(51,310)	$	(189,922)	$	(1,014)	$	299,804

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

SONOS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(unaudited, in thousands)
	Six Months Ended
	April 3, 2021		March 28, 2020
Cash flows from operating activities
Net income	$	149,513	$	18,454
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	16,725		18,831
Stock-based compensation expense	31,207		26,598
Other	344		2,989
Deferred income taxes	(146)		74
Foreign currency transaction gain	(1,047)		(420)
Changes in operating assets and liabilities:
Accounts receivable, net	(13,260)		63,344
Inventories	39,631		106,245
Other assets	(21,982)		(9,690)
Accounts payable and accrued expenses	(36,485)		(191,070)
Accrued compensation	2,087		(14,443)
Deferred revenue	8,374		3,729
Other liabilities	992		10,727
Net cash provided by operating activities	175,953		35,368
Cash flows from investing activities
Purchases of property and equipment, intangible and other assets	(19,927)		(25,800)
Cash paid for acquisition, net of acquired cash	—		(36,289)
Net cash used in investing activities	(19,927)		(62,089)
Cash flows from financing activities
Repayments of borrowings	(25,000)		(3,333)
Payments for repurchase of common stock	(682)		(33,216)
Proceeds from exercise of common stock options	119,166		12,585
Payments for repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock units	(18,821)		(4,596)
Net cash provided by (used in) financing activities	74,663		(28,560)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1,139		(107)
Net increase (decrease) in cash, cash equivalents and restricted cash	231,828		(55,388)
Cash, cash equivalents and restricted cash
Beginning of period	407,291		338,820
End of period	$	639,119	$	283,432
Supplemental disclosure
Cash paid for interest	$	357	$	851
Cash paid for taxes, net of refunds	$	3,255	$	1,025
Cash paid for amounts included in the measurement of lease liabilities	$	11,683	$	7,346
Supplemental disclosure of non-cash investing and financing activities
Purchases of property and equipment in accounts payable and accrued expenses	$	8,910	$	3,270
Right-of-use assets obtained in exchange for new operating lease liabilities	$	1,622	$	75,642

The accompanying notes are an integral part of these condensed consolidated financial statements.

6

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1. Business Overview and Basis of Presentation

Description of business

Sonos, Inc. and its wholly owned subsidiaries (collectively, “Sonos,” the “Company,” “we,” “us” or “our”) designs, develops, manufactures, and sells audio products and services. The Sonos sound system provides customers with an immersive listening experience created by the design of its speakers and components, a proprietary software platform, and the ability to stream content from a variety of sources over the customer’s wireless network or over Bluetooth.

The Company’s products are sold through third-party physical retailers, including custom installers of home audio systems, select e-commerce retailers, and its website sonos.com. The Company’s products are distributed in over 50 countries through its wholly owned subsidiaries: Sonos Europe B.V. in the Netherlands, Beijing Sonos Technology Co. Ltd. in China, Sonos Japan GK in Japan, and Sonos Australia Pty Ltd. in Australia.

Basis of presentation and preparation

The accompanying condensed consolidated financial statements are unaudited. The condensed consolidated balance sheet as of October 3, 2020 has been derived from the audited consolidated financial statements of the Company.

The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all the information and footnotes required by U.S. GAAP for annual financial statements. They should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended October 3, 2020 (the “Annual Report”), filed with the SEC on November 23, 2020.

In management’s opinion, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of only normal recurring adjustments, necessary for the fair statement of the Company’s financial position, its results of operations, and its cash flows for the interim periods presented. The results of operations for the three and six months ended April 3, 2021 are not necessarily indicative of the results to be expected for the full fiscal year or any other period.

The Company operates on a 52- week or 53- week fiscal year ending on the Saturday nearest September 30 each year. The Company’s fiscal year is divided into four quarters of 13 weeks, each beginning on a Sunday and containing two 4-week periods followed by a 5-week period. An additional week is included in the fourth fiscal quarter approximately every five years to realign fiscal quarters with calendar quarters. This last occurred in the fourth quarter of the Company’s fiscal year ended October 3, 2020 and will reoccur in the fiscal year ending October 3, 2026. The six months ended April 3, 2021 and March 28, 2020 spanned 26 weeks each. As used in this Quarterly Report on Form 10-Q, “fiscal 2021” refers to the fiscal year ending October 2, 2021 and “fiscal 2020” refers to the fiscal year ended October 3, 2020.

Use of estimates and judgments

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and judgments that affect the amounts reported and disclosed in the condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. On an ongoing basis, the Company evaluates its estimates and judgments compared to historical experience and expected trends.

In March 2020, the outbreak of the novel coronavirus (COVID-19) was declared a pandemic. While the nature of the situation is dynamic, the Company has considered the impact when developing its estimates and assumptions noted above. Actual results and outcomes may differ from management's estimates and assumptions.

7

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

2. Summary of Significant Accounting Policies

There have been no changes in the Company’s significant accounting policies, recently adopted accounting pronouncements or recent accounting pronouncements pending adoption from those disclosed in the Annual Report, except as noted below.

Recently adopted accounting pronouncements

In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments, and it subsequently issued amendments to the initial guidance (collectively referred to as "Topic 326"), which provide a new impairment model that requires measurement and recognition of expected credit losses for most financial assets and certain other instruments, including accounts receivable. The Company adopted this standard effective October 4, 2020, using a modified retrospective approach. Under the new standard, the allowance for credit losses is based on the Company's assessment of collectibility of accounts, including consideration of the age of invoices, each customer's expected ability to pay and collection history, customer-specific information and current economic conditions that may impact a customer's ability to pay. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In November 2018, the FASB issued ASU No. 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606. This standard resolves the diversity in practice concerning whether certain transactions between collaborative arrangement participants should be accounted for as revenue under Accounting Standards Codification 606, Revenue from Contracts with Customers ("Topic 606"). This standard specifies when a participant is a customer in a collaboration, adds guidance for unit of account to align with Topic 606 and provides presentation guidance for collaborative arrangements. The Company adopted this standard in the first quarter of fiscal 2021. The adoption did not have a material impact on the Company's consolidated financial statements.

Recent accounting pronouncements pending adoption

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This standard simplifies the accounting for income taxes by removing certain exceptions to the general principles in Accounting Standards Codification Topic 740 ("ASC 740") as well as by improving consistent application of the topic by clarifying and amending existing guidance. This standard is effective for the Company in the first quarter of fiscal 2022, with early adoption permitted. The Company is currently evaluating the timing of adoption and impact on the Company's consolidated financial statements.

3. Fair Value Measurements

The carrying values of the Company’s financial instruments, including accounts receivable and accounts payable, approximate their fair values due to the short period of time to maturity or repayment.

The following table summarizes fair value measurements by level for the assets measured at fair value on a recurring basis as of April 3, 2021 and October 3, 2020:

	April 3, 2021
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (cash equivalents)	$	472,425	$	—	$	—	$	472,425

	October 3, 2020
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (cash equivalents)	$	281,380	$	—	$	—	$	281,380

8

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

4. Revenue and Geographic Information

Disaggregation of revenue

Revenue by geographical region also includes the applicable service revenue for software upgrades and cloud-based services attributable to each region and is based on ship-to address, as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Americas	$	193,938	$	101,964	$	561,177	$	405,158
Europe, Middle East and Africa (“EMEA”)	114,306		57,252		354,313		269,990
Asia Pacific (“APAC”)	24,705		15,882		63,042		62,033
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

Revenue is attributed to individual countries based on ship-to address and also includes the applicable service revenue for software upgrades and cloud-based services attributable to each country. Revenue by significant countries is as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
United States	$	178,019	$	94,755	$	508,915	$	372,028
Other countries	154,930		80,343		469,617		365,153
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

Revenue by product category also includes the applicable service revenue for software upgrades and cloud-based services attributable to each product category. Revenue by major product category is as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Sonos speakers	$	267,534	$	116,367	$	795,050	$	583,044
Sonos system products	52,062		47,202		149,820		108,723
Partner products and other revenue	13,353		11,529		33,662		45,414
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

5. Balance Sheet Components

Accounts receivable, net of allowances

Accounts receivable, net of allowances, consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Accounts receivable	$	91,737	$	73,757
Allowance for credit losses	(1,435)		(1,307)
Allowance for sales incentives	(20,612)		(17,515)
Accounts receivable, net of allowances	$	69,690	$	54,935

9

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

Inventories

Inventories consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Finished goods	$	131,541	$	172,184
Component parts	8,040		8,646
Inventories	$	139,581	$	180,830

The Company writes down inventory as a result of excess and obsolete inventories, or when it believes that the net realizable value of inventories is less than the carrying value.

Intangible assets

The following table reflects the changes in the net carrying amount of the components of intangible assets associated with the Company's acquisition activity:

	April 3, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value		Weighted-Average Remaining Life
(In thousands, except weighted-average remaining life)
Technology	$	7,789	$	(2,468)	$	5,321	3.10
Other	39		(26)		13		0.67
Total finite-lived intangible assets	7,828		(2,494)		5,334		3.09
In-process research and development and other intangible assets not subject to amortization	20,100		—		20,100
Total intangible assets	$	27,928	$	(2,494)	$	25,434

The following table summarizes estimated future amortization expense of the Company's intangible assets as of April 3, 2021:

Fiscal years ending	Future Amortization Expense
(In thousands)
Remainder of fiscal 2021	$	971
2022	1,927
2023	1,246
2024	1,020
2025	170
2026 and thereafter	—
Total future amortization expense	$	5,334

10

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

Accrued expenses

Accrued expenses consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Accrued advertising and marketing	$	9,999	$	10,609
Accrued taxes	9,294		6,252
Accrued inventory	7,864		2,843
Accrued manufacturing, logistics and product development	12,366		9,753
Accrued general and administrative expenses	16,555		10,068
Other accrued payables	5,581		5,524
Total accrued expenses	$	61,659	$	45,049

Deferred revenue

Amounts invoiced in advance of revenue recognition are recorded as deferred revenue on the condensed consolidated balance sheets. Deferred revenue primarily relates to revenue allocated to unspecified software upgrades and cloud-based services.

The following table presents the changes in the Company’s deferred revenue for the six months ended April 3, 2021 and March 28, 2020:

	April 3, 2021		March 28, 2020
(In thousands)
Deferred revenue, beginning of period	$	62,389	$	56,449
Recognition of revenue included in beginning of period deferred revenue	(7,883)		(6,904)
Revenue deferred, net of revenue recognized on contracts in the respective period	16,383		10,798
Deferred revenue, end of period	$	70,889	$	60,343

The Company expects the following recognition of deferred revenue as of April 3, 2021:

	For the fiscal years ending
	2021		2022		2023		2024		2025 and Beyond		Total
(In thousands)
Deferred revenue expected to be recognized	$	10,473	$	15,360	$	13,432	$	11,382	$	20,242	$	70,889

Other current liabilities

Other current liabilities consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Reserve for returns	$	20,572	$	14,195
Short-term operating lease liabilities	10,718		10,910
Product warranty liability	4,856		3,628
Other	4,624		2,417
Total other current liabilities	$	40,770	$	31,150

11

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

The following table presents the changes in the Company’s warranty liability for the six months ended April 3, 2021 and March 28, 2020:

	April 3, 2021		March 28, 2020
(In thousands)
Warranty liability, beginning of period	$	3,628	$	3,254
Provision for warranties issued during the period	8,844		7,098
Settlements of warranty claims during the period	(7,616)		(6,608)
Warranty liability, end of period	$	4,856	$	3,744

6. Debt

The Company's debt obligation consists of the Secured Credit Facility with J.P. Morgan Chase Bank, N.A. (the “Credit Facility”). In January 2021, the Company repaid all of its outstanding principal balance of $24.9 million under the J.P. Morgan Chase Bank, N.A. Secured Term Loan (the "Term Loan") which had an original maturity date of October 2021. As of April 3, 2021, the Company did not have any remaining short- or long-term debt obligations, and as of October 3, 2020 the Company’s short- and long-term debt obligations were as follows:

	October 3, 2020
	Rate	Balance
(In thousands, except percentages)
Term loan (1)	2.4 %	$	25,000
Unamortized debt issuance costs (2)		(82)
Total indebtedness		24,918
Less short-term portion		(6,667)
Long-term debt		$	18,251

(1)Original maturity date of October 2021 and bore interest at a variable rate equal to an adjusted LIBOR plus 2.25%, payable quarterly.

(2)Debt issuance costs were recorded as a debt discount and recorded as interest expense over the term of the agreement.

The Credit Facility allows the Company to borrow up to $80.0 million, restricted to the value of the borrowing base, which is based on the value of inventory and accounts receivable and is subject to quarterly redetermination. The Credit Facility matures in October 2021 and may be drawn as Commercial Bank Floating Rate Loans (at the higher of prime rate or adjusted LIBOR plus 2.50%) or Eurocurrency Loans (at LIBOR plus an applicable margin). As of both April 3, 2021 and October 3, 2020, the Company did not have any outstanding borrowings and had $2.9 million and $0.5 million, respectively, in undrawn letters of credit that reduce the availability under the Credit Facility.

Debt obligations under the Credit Facility require the Company to maintain a consolidated fixed charge ratio of at least 1.0, restrict distribution of dividends unless certain conditions are met, such as having a fixed charge ratio of at least 1.15, and require financial statement reporting and delivery of borrowing base certificates. As of April 3, 2021 and October 3, 2020, the Company was in compliance with all financial covenants. The Credit Facility is collateralized by eligible inventory and accounts receivable of the Company, as well as the Company's intellectual property including patents and trademarks.

12

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

7. Commitments and Contingencies

Legal proceedings

From time to time, the Company is involved in legal proceedings in the ordinary course of business, including claims relating to employee relations, business practices and patent infringement. Litigation can be expensive and disruptive to normal business operations. Moreover, the results of complex legal proceedings are difficult to predict, and the Company’s view of these matters may change in the future as the litigation and events related thereto unfold. The Company expenses legal fees as incurred. The Company records a provision for contingent losses when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. An unfavorable outcome to any legal matter, if material, could have an adverse effect on the Company’s operations or its financial position, liquidity or results of operations.

On January 7, 2020, the Company filed a complaint with the U.S. International Trade Commission ("ITC") against Alphabet Inc. ("Alphabet") and Google LLC ("Google") and a lawsuit in the U.S. District Court for the Central District of California against Google. The complaint and lawsuit each allege infringement of certain Sonos patents related to its smart speakers and related technology. On February 6, 2020, the ITC initiated a formal investigation into the Company’s claims. Google and Alphabet filed an initial answer in the ITC action on February 27, 2020 and an amended answer on April 3, 2020, denying infringement and alleging that the asserted patents are invalid. The ITC case went to trial at the end of February 2021, and we expect an initial determination from the administrative law judge in the ITC case on or about August 13, 2021, which date was extended from the original date of May 11, 2021 as a result of COVID-related scheduling issues and workload increases pursuant to an order from the Chief Administrative Law Judge in May 2021. On March 4, 2020, the California District Court stayed the district court proceeding pending resolution of the ITC investigation. On March 11, 2020, Google filed an answer in the California District Court, denying infringement and alleging that the asserted patents are invalid. On September 28, 2020, Google filed for a declaratory judgement of non-infringement in the U.S. District Court for the Northern District of California related to five different Sonos patents. On September 29, 2020, the Company filed a lawsuit against Google in the U.S. District Court for Western District of Texas, alleging infringement of those five Sonos patents and seeking monetary damages and other non-monetary relief. On December 1, 2020, the Company filed a lawsuit against Google Germany GmbH and Google Ireland Ltd. in the regional court of Hamburg, Germany, alleging infringement of a Sonos patent related to control of playback of media by mobile and playback devices and seeking non-monetary relief. The Hamburg Court issued a judgment on February 25, 2021 declining to issue a preliminary injunction against Google Germany GmbH, although such court did issue a preliminary injunction against Google Ireland Ltd. in April 2021. See Note 14 "Subsequent Event" for more details.

On June 11, 2020, Google filed a lawsuit in the U.S. District Court for the Northern District of California against the Company, alleging infringement of five Google patents generally related to noise cancellation, digital rights management, media search and wireless relays and seeking monetary damages and other non-monetary relief. On November 2, 2020, the California District Court granted Sonos’ motion and dismissed Google’s allegation of infringement of one of such five Google patents, a patent generally related to media search, finding that the invention at issue is patent ineligible. On June 12, 2020, Google filed lawsuits in District Court Munich I against Sonos Europe B.V. and Sonos, Inc., alleging infringement of two Google patents generally related to digital rights management and search notifications, and seeking monetary damages and an injunction preventing sales of any infringing Sonos products. On January 14, 2021, Google amended its infringement complaint related to the search notifications patent to relate to a limited version of the claims, in view of prior art cited by the Company. On March 3, 2021, the District Court Munich stayed a case for infringement of the search notifications patent pending the outcome of a nullity action based on doubt as to the validity of the patent. On August 21, 2020, Google filed a lawsuit against Sonos, Inc. in Canada, alleging infringement of one Google patent generally related to noise cancellation technology. On August 21, 2020, Google filed a lawsuit against Sonos Europe B.V. and Sonos, Inc. in France, alleging infringement of two Google patents generally related to digital rights management and search notifications, and seeking monetary damages and an injunction preventing sales of any infringing Sonos products. On February 8, 2021, Google withdrew its infringement allegations regarding the search notifications patent in view of prior art brought to the attention of the court by the Company. In August 2020, Google filed a lawsuit against Sonos Europe B.V. and Sonos, Inc. in the Netherlands alleging infringement of a Google patent related to search notifications, and seeking monetary damages and an injunction preventing sales of any infringing Sonos products. In September 2020, Google filed a lawsuit against Sonos Europe B.V. in the

13

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

Netherlands, alleging infringement of a Google patent related to digital rights management, and seeking monetary damages and enforcement of an injunction preventing sales of any infringing Sonos products, which was transferred to the Midden-Netherlands court on March 22, 2021 following the grant of the Company's challenge to improper jurisdiction. A range of loss, if any, associated with these matters is not probable or reasonably estimable as of April 3, 2021 and October 3, 2020.

On March 10, 2017, Implicit, LLC (“Implicit”) filed a patent infringement action in the United States District Court, District of Delaware against the Company. Implicit is asserting that the Company infringed on two patents in this case. The Company denies the allegations. There is no assurance of a favorable outcome and the Company’s business could be adversely affected as a result of a finding that the Company patents-in-suit are invalid and/or unenforceable. A range of loss, if any, associated with this matter is not probable or reasonably estimable as of April 3, 2021 and October 3, 2020.

The Company is involved in certain other litigation matters not listed above but does not consider these matters to be material either individually or in the aggregate at this time. The Company’s view of the matters not listed may change in the future as the litigation and events related thereto unfold.

On May 13, 2020, the Company was granted a temporary exclusion from the August 2019 Section 301 Tariff Action (List 4A) ("Section 301 tariffs") for its component products. On July 23, 2020, the Company was granted a temporary exclusion from Section 301 tariffs for its core speaker products. These exclusions eliminated the tariffs on the Company's component and core speaker products imported from China until August 31, 2020 and entitled the Company to a refund for the tariffs paid since September 2019, the date the Section 301 tariffs were imposed. On August 28, 2020, the United States Trade Representative granted an extension through December 31, 2020 of the exclusion for the Company’s core products, with the Section 301 tariffs for our core products automatically reinstating on January 1, 2021. The exclusion for the Company’s component products was not extended past August 31, 2020, with the Section 301 tariffs for our component products automatically reinstating on September 1, 2020. Tariff refund claims are subject to review and approval by U.S. Customs and Border Protection. As of April 3, 2021, the Company recognized $6.2 million in refunds based upon acceptance of the Company's refund request, recognized as a reduction to cost of revenue, and the outstanding refund receivable was approximately $1.1 million which is recorded in other current assets on the condensed consolidated balance sheets. As of April 3, 2021, the remaining outstanding tariff refund the Company expects to recover was approximately $27.5 million. The Company did not record these potential refunds due to uncertainty of the timing of acceptance of approval and will be recognized as a reduction to cost of revenue if and when acceptance occurs.

8. Stockholders' Equity

Share repurchase program

On November 17, 2020, the Board of Directors authorized a common stock repurchase program of up to $50.0 million. During the six months ended April 3, 2021, the Company repurchased 19,547 shares for an aggregate purchase price of $0.7 million at an average price of $34.86 per share under the repurchase program. The Company had $49.3 million available for share repurchases under the repurchase program as of April 3, 2021.     

Treasury stock during the six months ended April 3, 2021 included shares withheld to satisfy employees' tax withholding requirements in connection with vesting of RSUs. Additionally, during the six months ended April 3, 2021 the Company retired 1,017,308 shares of treasury stock. The Company accounts for the retirement of treasury stock by deducting its par value from common stock and reflecting any excess of cost over par value as a deduction from additional paid-in-capital on the condensed consolidated balance sheets.

9. Stock-based Compensation

2018 Equity Incentive Plan

In July 2018, the Board adopted the 2018 Equity Incentive Plan (the “2018 Plan”). The 2018 Plan became effective in connection with the Company's initial public offering ("IPO"). The number of shares reserved for issuance under the 2018 Plan increase automatically on January 1 of each year beginning in 2019 and continuing through 2028 by a number of shares of common stock equal to the lesser of (x) 5% of the total outstanding shares

14

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

of the Company’s common stock and common stock equivalents as of the immediately preceding December 31 (rounded to the nearest whole share) and (y) a number of shares determined by the Company's board of directors (the "Board").

Stock options

Pursuant to the 2018 Plan, the Company issues stock options to employees and directors. The fair value of the stock options is based on the Company’s closing stock price on the trading day immediately prior to the date of grant. The option price, number of shares, and grant date are determined at the discretion of the Board. For so long as the option holder performs services for the Company, the options generally vest over 48 months, on a monthly or quarterly basis, with certain options subject to an initial annual cliff vest, and are exercisable for a period not to exceed ten years from the date of grant.

The summary of the Company’s stock option activity is as follows:

	Number of Options	Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
				(In years)	(In thousands)
Outstanding at October 3, 2020	28,422,940	$	12.03	5.6	$	99,053
Granted	—	—
Exercised	(10,829,628)	11.01
Forfeited	(403,681)	14.30
Outstanding at April 3, 2021	17,189,631	$	12.62	5.5	$	452,794
At April 3, 2021
Options exercisable	14,465,856	$	12.25	5.1	$	386,395
Options vested and expected to vest	16,893,229	$	12.59	5.5	$	445,523

As of April 3, 2021 and October 3, 2020, the Company had $10.5 million and $16.9 million, respectively, of unrecognized stock-based compensation expense related to stock options, which is expected to be recognized over a weighted-average period of 1.2 and 1.5 years, respectively.

Restricted stock units

Pursuant to the 2018 Plan, the Company issues RSUs to employees and directors. The fair value of RSUs is based on the Company's closing stock price on the trading day immediately preceding the date of grant. RSUs typically have an initial annual cliff vest, and then vest quarterly over the service period, which is generally four years. The summary of the Company’s RSU activity is as follows:

	Number of Units	Weighted-Average Grant Date Fair Value		Aggregate Intrinsic Value
				(In thousands)
Outstanding at October 3, 2020	11,647,951	$	10.50	$	180,543
Granted	2,613,732
Released	(1,989,069)
Forfeited	(607,864)
Outstanding at April 3, 2021	11,664,750	$	11.87	$	454,459

As of April 3, 2021 and October 3, 2020, the Company had $105.1 million and $92.4 million of unrecognized stock-based compensation expense related to RSUs, which is expected to be recognized over a weighted-average period of 2.8 and 3.0 years, respectively.

15

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

Performance stock units ("PSU")

Pursuant to the 2018 Plan, the Company has issued and may issue certain PSUs that vest on the satisfaction of service and performance conditions. The Company estimates the fair value of PSUs on the grant date and recognizes compensation expense in the period it becomes probable that performance conditions will be achieved. On a quarterly basis, the Company re-evaluates the assumption of the probability that performance conditions will be satisfied and revises its estimates as appropriate as new or updated information becomes available. The summary of the Company’s PSU activity is as follows:

	Number of Units	Weighted-Average Grant Date Fair Value		Aggregate Intrinsic Value
				(In thousands)
Outstanding at October 3, 2020	—	$	—	$	—
Granted	158,521
Vested	—
Forfeited	—
Outstanding at April 3, 2021	158,521	$	22.81	$	6,176

As of April 3, 2021, the Company had $4.3 million of unrecognized stock-based compensation expense related to PSUs, which is expected to be recognized over a weighted-average period of 1.7 years.

    Stock-based compensation

Total stock-based compensation expense by functional category was as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Cost of revenue	$	261	$	278	$	474	$	561
Research and development	6,683		5,427		12,942		10,543
Sales and marketing	3,632		3,407		7,040		6,948
General and administrative	5,787		4,282		10,751		8,546
Total stock-based compensation expense	$	16,363	$	13,394	$	31,207	$	26,598

10. Income Taxes

The Company’s tax provision and the resulting effective tax rate for interim periods is determined based upon its estimated annual effective tax rate ("AETR"), adjusted for the effect of discrete items arising in that quarter. The impact of such inclusions could result in a higher or lower effective tax rate during a quarter, based upon the mix and timing of actual earnings or losses versus annual projections. In each quarter, the Company updates its estimate of the AETR, and if the estimated AETR changes, a cumulative adjustment is made in that quarter. For the three and six months ended March 28, 2020, the Company excluded certain jurisdictions from the calculation of the estimated AETR as the Company anticipated an ordinary loss in these jurisdictions for which no tax benefit could be recognized.

16

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

The Company recorded benefit from incomes taxes of $6.5 million and of $1.8 million for the three months ended April 3, 2021 and March 28, 2020, respectively, related to U.S. and non-U.S. income taxes. The Company recorded a provision for incomes taxes of $2.6 million and benefit from income taxes of $0.2 million for the six months ended April 3, 2021 and March 28, 2020, respectively. For the three and six months ended April 3, 2021 the Company's tax provision includes a discrete benefit for U.S. share based compensation. For the six months ended March 28, 2020, the Company's tax provision includes a discrete income tax benefit resulting from a favorable release of uncertain tax positions in the U.S. coinciding with the issuance of the Base Erosion and Anti-Abuse Tax (“BEAT”) Regulations.

For the six months ended April 3, 2021, the Company maintained a full valuation allowance on its deferred tax assets in the U.S. and the Netherlands due to its history of operating losses. It is possible that within the next 12 months there may be sufficient positive evidence to release a portion or all of the valuation allowance. Release of the valuation allowance in the U.S. and the Netherlands would result in a benefit to income tax expense for the period the release is recorded, which could have a material impact on net earnings. The timing and amount of the potential valuation allowance release are subject to significant management judgment, as well as prospective earnings in the U.S. and the Netherlands.

11. Net Income (Loss) Per Share Attributable to Common Stockholders

Basic net income (loss) attributable to common stockholders per share is calculated by dividing net income (loss) attributable to common stockholders by the weighted-average number of shares of common stock outstanding less shares subject to repurchase. Diluted net income (loss) per share attributable to common stockholders adjusts the basic net income (loss) per share attributable to common stockholders and the weighted-average number of shares of common stock outstanding for the potentially dilutive impact of stock awards, using the treasury stock method.

The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share attributable to common stockholders:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands, except share and per share data)
Numerator:
Net income (loss) attributable to common stockholders - basic and diluted	$	17,221	$	(52,320)	$	149,513	$	18,454
Denominator:
Weighted-average shares of common stock—basic	121,880,615		109,515,049		118,745,569		109,249,866
Effect of potentially dilutive stock options	12,040,149		—		10,073,032		6,185,155
Effect of RSUs	9,105,551		—		8,016,629		2,384,548
Effect of PSUs	29,231		—		14,616		—
Weighted-average shares of common stock—diluted	143,055,546		109,515,049		136,849,846		117,819,569
Net income (loss) per share attributable to common stockholders:
Basic	$	0.14	$	(0.48)	$	1.26	$	0.17
Diluted	$	0.12	$	(0.48)	$	1.09	$	0.16

17

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

The following potentially dilutive shares were excluded from the computation of diluted net income (loss) per share attributable to common stockholders because including them would have been antidilutive:

	Three Months Ended		Six Months Ended
	April 3, 2021	March 28, 2020	April 3, 2021	March 28, 2020
Stock options to purchase common stock	7,523,579	34,840,568	12,299,023	29,425,147
Restricted stock units	3,219,598	7,081,150	4,354,744	4,635,242
Performance stock units	44,217	—	22,109	—
Total	10,787,394	41,921,718	16,675,876	34,060,389

12. Restructuring Plan

On June 23, 2020, the Company initiated a restructuring plan as part of its efforts to reduce operating expenses and preserve liquidity due to the uncertainty and challenges stemming from the COVID-19 pandemic (the "2020 restructuring plan"). As part of the 2020 restructuring plan, the Company eliminated approximately 12% of its global headcount and closed its New York retail store and six satellite offices in order to better align resources to provide further operating flexibility and more efficiently position the business for its long-term strategy. Activities under the 2020 restructuring plan were substantially completed in the first quarter of fiscal 2021.

Total pre-tax restructuring and related costs under the 2020 restructuring plan were $26.4 million, which was incurred in fiscal 2020. For the assets deemed to be impaired as part of the 2020 restructuring, the Company estimated fair value using an income-approach based on management’s forecast of future cash flows expected to be derived from the property. In the first quarter of fiscal 2021, the Company negotiated the early termination of a facility lease that was part of the 2020 restructuring and recorded a gain of $2.8 million, representing the difference between the related operating lease liability and previously accrued restructuring expenses versus the early termination payment. The gain was recognized as a credit in sales and marketing expenses on the condensed consolidated statements of operations and comprehensive income. The cash paid related to the settlement of the lease liability as part of the early termination is included within "Cash paid for amounts included in the measurement of lease liabilities" within the supplemental disclosure on the condensed consolidated statements of cash flows.

The remaining balance in accrued expenses and accrued compensation associated with restructuring activities is nominal as of second quarter of fiscal 2021. These costs required the Company to make certain judgments and estimates regarding the amount and timing of the 2020 restructuring plan and related impairment charges or recoveries. The estimated liability could change subsequent to its recognition as part of the 2020 restructuring plan, requiring adjustments to the expense and liability recorded. On a quarterly basis, the Company conducts an evaluation of the related liabilities and expenses and revises its assumptions and estimates as appropriate as new or updated information becomes available.

13. Retirement Plans

The Company has a defined contribution 401(k) plan (the "401(k) Plan") for the Company’s U.S.-based employees, as well as various defined contribution plans for its international employees. Eligible U.S. employees may make tax-deferred contributions under the 401(k) plan, but are limited to the maximum annual dollar amount allowable under the Internal Revenue Code of 1986, as amended (the "Code"). The Company matches contributions towards the 401(k) Plan and international defined contribution plans. The Company's matching contributions totaled $1.8 million and $1.5 million for the three months ended April 3, 2021 and March 28, 2020, respectively. The Company's matching contributions totaled $3.5 million and $3.1 million for the six months ended April 3, 2021 and March 28, 2020, respectively.

18

SONOS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)

(unaudited)

14. Subsequent Event

On April 29, 2021, the Company obtained a preliminary injunction from the Court of Hamburg that prevents Google Ireland Ltd. from making available in Germany its Cast technology, aspects of which are protected by a Sonos patent related to enabling the ability to cast and control media content from a mobile phone or tablet to one or more smart playback devices. The preliminary injunction requires Google to stop providing mobile devices, playback devices, and software which use the infringing Cast technology. Further details regarding the enforcement of the preliminary injunction will be set forth in the full judgment, which is not yet available as of the date of this filing.

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Item 2. Management's discussion and analysis of financial condition and results of operations

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our condensed consolidated financial statements and related notes included in Part I, Item 1 of this Quarterly Report on Form 10-Q and with our audited consolidated financial statements included in our Annual Report.

We operate on a 52- week or 53- week fiscal year ending on the Saturday nearest September 30 each year. Our fiscal year is divided into four quarters of 13 weeks, each beginning on a Sunday and containing two 4-week periods followed by a 5-week period. An additional week is included in the fourth fiscal quarter approximately every five years to realign fiscal quarters with calendar quarters.

Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements. All statements other than statements of historical facts contained in this Quarterly Report on Form 10-Q, including statements regarding future operations, are forward-looking statements. In some cases, forward-looking statements may be identified by words such as “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “could,” “would,” “expect,” “objective,” “plan,” “potential,” “seek,” “grow,” “target,” “if,” and similar expressions intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations, objectives and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in the section titled “Risk Factors” set forth in Part II, Item 1A of this Quarterly Report on Form 10-Q and in our other SEC filings, including our Annual Report. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the future events and trends discussed in this Quarterly Report on Form 10-Q may not occur and actual results may differ materially and adversely from those anticipated or implied in the forward-looking statements. You should read this Quarterly Report on Form 10-Q with the understanding that our actual future results, levels of activity, performance and events and circumstances may be materially different from what we expect. Except as required by law, we do not undertake any obligation to publicly update any forward-looking statements, whether as a result of new information, future developments or otherwise.

Overview

Sonos is one of the world's leading sound experience brands. As the inventor of multi-room wireless audio products, Sonos' innovation helps the world listen better by giving people access to the content they love and allowing them to control it however they choose. Known for delivering an unparalleled sound experience, thoughtful design aesthetic, simplicity of use and an open platform, Sonos makes a breadth of audio content available to anyone.

Our innovative products, seamless customer experience, and expanding global footprint have driven 15 consecutive years of sustained revenue growth since our first product launch. We generate revenue from the sale of our Sonos speaker products, including wireless speakers and home theater speakers, from our Sonos system products, which largely comprise of our component products, and from partner products and other revenue, including partnerships with IKEA and Sonance, Sonos and third-party accessories, licensing, advertising, and subscription revenue.

COVID-19 Update

In December 2019, the novel coronavirus (COVID-19) was reported in China and subsequently was declared a global pandemic in March 2020 by the World Health Organization. The impact of the pandemic has led to significant challenges to our global economy. Starting in March 2020, we implemented global travel restrictions and work-from-home policies for employees who have the ability to work remotely and continue to operate with these

20

policies through the second quarter of fiscal 2021. As of the date of this report, these policies have not materially adversely affected our operations, financial reporting or internal controls.

As a result of the COVID-19 pandemic, beginning in fiscal 2020 and continuing into fiscal 2021, we have experienced strong performance in our direct-to-consumer sales channel, primarily driven by strong orders through our website. We have experienced certain weakening of retail demand during the pandemic due to modifications of the retail experience and inventory re-balancing by retail partners, particularly in fiscal 2020. COVID-19 had certain impacts on our supply chain. The ongoing COVID-19 pandemic has led to world-wide supply chain challenges including shipping and logistics challenges and significant limits on component supplies which have resulted in delayed product availability. These challenges have also further delayed our efforts to fully diversify our supply chain into Malaysia until fiscal 2022. We expect this to impact us as long as the global supply chain is experiencing these challenges. We continue to invest in supply chain initiatives to meet increasing customer demand to address industry-wide capacity challenges. We continue to maintain our liquidity and believe our existing cash and cash equivalent balances, cash flow from operations, and committed credit lines are sufficient to meet our long-term working capital and capital expenditure needs.

While the situation caused by COVID-19 is unprecedented and dynamic, we have considered its impact when developing our estimates and assumptions. Actual results and outcomes may differ from our estimates and assumptions. For additional information of risks related to COVID-19, refer to Part II, Item 1A. Risk factors.

Key Metrics

In addition to the measures presented in our condensed consolidated financial statements, we use the following key metrics to evaluate our business, measure our performance, identify trends affecting our business and assist us in making strategic decisions. Our key metrics are total revenue, products sold, adjusted EBITDA and adjusted EBITDA margin. The most directly comparable financial measure calculated under U.S. GAAP for adjusted EBITDA is net income (loss). In the three months ended April 3, 2021 and March 28, 2020, we had net income of $17.2 million and net loss of $52.3 million, respectively. In the six months ended April 3, 2021 and March 28, 2020, we had net income of $149.5 million and $18.5 million, respectively.

	Three Months Ended						Six Months Ended
	April 3, 2021			March 28, 2020			April 3, 2021			March 28, 2020
(In thousands, except percentages)
Total revenue	$	332,949		$	175,098		$	978,532		$	737,181
Products sold	1,039			681			3,688			3,620
Adjusted EBITDA(1)	$	48,513		$	(28,382)		$	214,779		$	64,836
Adjusted EBITDA margin(1)	14.6		%	(16.2)		%	21.9		%	8.8		%

(1)For additional information regarding adjusted EBITDA and adjusted EBITDA margin (which are non-GAAP financial measures), including reconciliations of net income, to adjusted EBITDA, see the sections titled “Adjusted EBITDA and adjusted EBITDA margin” and "Non-GAAP financial measures” below.

Products Sold

Products sold represents the number of products that are sold during a period, net of returns, and includes the sale of products in the Sonos speakers and Sonos system products categories, as well as module units sold through our partnerships with IKEA and Sonance from our Partner products and other revenue category. Products sold excludes accessories, which have not materially contributed to our revenue historically. Growth rates between products sold and revenue are not perfectly correlated because our revenue is affected by other variables, such as the mix of products sold during the period, promotional discount activity and the introduction of new products that may have higher or lower than average selling prices.

Adjusted EBITDA and Adjusted EBITDA Margin

We define adjusted EBITDA as net income (loss) adjusted to exclude the impact of stock-based compensation expense, depreciation, interest, other income (expense), taxes, and other items that we do not consider representative of our underlying operating performance.

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We define adjusted EBITDA margin as adjusted EBITDA divided by revenue. See “Non-GAAP financial measures” below for information regarding our use of adjusted EBITDA and adjusted EBITDA margin and a reconciliation of net income (loss) to adjusted EBITDA.

Non-GAAP Financial Measures

To supplement our condensed consolidated financial statements presented in accordance with U.S. GAAP, we monitor and consider adjusted EBITDA and adjusted EBITDA margin, which are non-GAAP financial measures. These non-GAAP financial measures are not based on any standardized methodology prescribed by U.S. GAAP and are not necessarily comparable to similarly titled measures presented by other companies.

We use these non-GAAP financial measures to evaluate our operating performance and trends and make planning decisions. We believe that these non-GAAP financial measures help identify underlying trends in our business that could otherwise be masked by the effect of the expenses and other items that we exclude in these non-GAAP financial measures. Accordingly, we believe that these non-GAAP financial measures provide useful information to investors and others in understanding and evaluating our operating results, enhance the overall understanding of our past performance and future prospects, and allow for greater transparency with respect to key financial metrics used by our management in its financial and operational decision making. Adjusted EBITDA and adjusted EBITDA margin are non-GAAP financial measures, and should not be considered in isolation of, or as alternatives to, measures prepared in accordance with U.S. GAAP. There are a number of limitations related to the use of adjusted EBITDA rather than net income (loss), which is the nearest U.S. GAAP equivalent of adjusted EBITDA, and the use of adjusted EBITDA margin rather than operating margin, which is the nearest U.S. GAAP equivalent of adjusted EBITDA margin. These non-GAAP financial measures have certain limitations which:

•exclude depreciation and amortization, and although these are non-cash expenses, the assets being depreciated may be replaced in the future;

•exclude stock-based compensation expense, which has been, and will continue to be, a significant recurring expense for our business and an important part of our compensation strategy;

•do not reflect interest income, primarily resulting from interest income earned on our cash and cash equivalent balances;

•do not reflect interest expense, or the cash requirements necessary to service interest or principal payments on our debt, which reduces cash available to us;

•do not reflect the effect of foreign currency exchange gains or losses, which is included in other income (expense), net;

•do not reflect the provision for or benefit from income tax that may result in payments that reduce cash available to us;

•do not reflect non-recurring expenses and other items that are not considered representative of our underlying operating performance which reduce cash available to us; and

•may not be comparable to similar non-GAAP financial measures used by other companies, because the expenses and other items that we exclude in our calculation of these non-GAAP financial measures may differ from the expenses and other items, if any, that other companies may exclude from these non-GAAP financial measures when they report their operating results.

Because of these limitations, these non-GAAP financial measures should be considered along with other operating and financial performance measures presented in accordance with U.S. GAAP.

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The following table presents a reconciliation of net income (loss) to adjusted EBITDA:

	Three Months Ended						Six Months Ended
	April 3, 2021			March 28, 2020			April 3, 2021			March 28, 2020
(In thousands, except percentages)
Net income (loss)	$	17,221		$	(52,320)		$	149,513		$	18,454
Add (deduct):
Depreciation and amortization	8,742			9,726			16,725			18,831
Stock-based compensation expense	16,363			13,394			31,207			26,598
Interest income	(44)			(874)			(80)			(1,873)
Interest expense	182			374			448			827
Other (income) expense, net	1,578			1,423			(2,680)			(3,001)
Provision for (benefit from) income taxes	(6,542)			(1,810)			2,578			(153)
Restructuring and related expenses (Note 12)	—			—			(2,611)			—
Legal and transaction related costs (1)	11,013			1,705			19,679			5,153
Adjusted EBITDA	$	48,513		$	(28,382)		$	214,779		$	64,836
Revenue	$	332,949		$	175,098		$	978,532		$	737,181
Adjusted EBITDA margin	14.6		%	(16.2)		%	21.9		%	8.8		%

(1)Legal and transaction-related costs consist of expenses related to our intellectual property ("IP") litigation against Alphabet and Google as well as legal and transaction costs associated with our acquisition activity, which we consider non-recurring expenses and do not consider representative of our underlying operating performance.

Factors Affecting Performance

New product introductions. Since 2005, we have released a number of products in multiple audio categories. We intend to introduce new products that appeal to a broad set of consumers, as well as bring our differentiated listening platform and experience to all the places and spaces where our customers listen to the breadth of audio content available, including inside and outside their homes.

Seasonality. Historically, we have experienced the highest levels of revenue in the first fiscal quarter of the year coinciding with the holiday shopping season and our promotional activities.

Channel strategy. We are focused on reaching and converting prospective customers through third-party retail stores, e-commerce retailers, custom installers of home audio systems, and our website sonos.com. We are investing in our e-commerce capabilities and in-app experience to drive direct sales. Sales through our direct-to-consumer channel, primarily through sonos.com, increased in the six months ended April 3, 2021 compared to the six months ended March 28, 2020. We believe the growth of our own e-commerce channel will continue to be important to supporting our overall growth and profitability as consumers continue the shift from physical to online sales channels. Our physical retail distribution relies on third-party retailers. While we seek to increase sales through our direct-to-consumer sales channel, we expect that our third-party retailers will continue to be an important part of our ecosystem. We will continue to seek retail partners that can deliver differentiated in-store experiences to support customer demand for product demonstrations.

For additional information regarding factors affecting performance, refer to Risk factors in Part II, Item 1A. of this Quarterly Report on Form 10-Q, the Risk factors in Part I, Item 1A. of our Annual Report, and to Part II, Item 7. "Management's Discussion and Analysis of Financial Condition and Results of Operations - Factors Affecting Our Performance" in our Annual Report.

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Components of Results of Operations

Revenue

We generate substantially all of our revenue from the sale of Sonos speakers and Sonos system products. We also generate a portion of revenue from Partner products and other revenue sources, such as module revenue from our IKEA partnership, architectural speakers from our Sonance partnership, and accessories such as speaker stands and wall mounts, as well as professional services and licensing revenue. We attribute revenue from our IKEA partnership to our APAC region, as our regional revenue is defined by the shipment location. Our revenue is recognized net of allowances for returns, discounts, sales incentives, and any taxes collected from customers. We also defer a portion of our revenue that is allocated to unspecified software upgrades and cloud-based services. Our revenue is subject to fluctuation based on the foreign currency in which our products are sold, principally for sales denominated in the euro and the British pound. The introduction of new products may result in an increase in revenue but may also impact revenue generated from existing products as consumers shift purchases to new products.

Cost of Revenue

Cost of revenue consists of product costs, including costs of our contract manufacturers for production, component product costs, shipping and handling costs, tariffs, duty costs, warranty replacement costs, packaging, fulfillment costs, manufacturing and tooling equipment depreciation, warehousing costs, hosting costs, and excess and obsolete inventory write-downs. In addition, we allocate certain costs related to management and facilities, personnel-related expenses, and other expenses associated with supply chain logistics. Personnel-related expenses consist of salaries, bonuses, benefits, and stock-based compensation expenses.

Gross Profit and Gross Margin

Our gross margin has fluctuated and may, in the future, fluctuate from period to period based on a number of factors, including the mix of products we sell, the channel mix through which we sell our products, fluctuations of the impacts of our product and material cost saving initiatives, the foreign currency in which our products are sold, and tariffs and duty costs implemented by governmental authorities.

Operating Expenses

Operating expenses consist of research and development, sales and marketing, and general and administrative expenses.

Research and development. Research and development expenses consist primarily of personnel-related expenses, consulting and contractor expenses, tooling, test equipment, prototype materials, and related overhead costs. To date, software development costs have been expensed as incurred because the period between achieving technological feasibility and the release of the software has been short and development costs qualifying for capitalization have been insignificant.

Sales and marketing. Sales and marketing expenses consist primarily of advertising and marketing activity for our products and personnel-related expenses, as well as trade show and event costs, sponsorship costs, consulting and contractor expenses, travel costs, product display expenses and related depreciation, customer experience and technology support tool expenses, revenue related sales fees from our direct-to-consumer business, and overhead costs.

General and administrative. General and administrative expenses consist of personnel-related expenses for our finance, legal, human resources and administrative personnel, as well as the costs of professional services, information technology, litigation, patents, related overhead, and other administrative expenses.

Other Income (Expense), Net

Interest income. Interest income consists primarily of interest income earned on our cash and cash equivalents balances.

Interest expense. Interest expense consists primarily of interest expense associated with our debt financing arrangements and amortization of debt issuance costs.

24

Other income (expense), net. Other income (expense), net consists primarily of our foreign currency exchange gains and losses relating to transactions and remeasurement of asset and liability balances denominated in currencies other than the U.S. dollar. We expect our foreign currency gains and losses to continue to fluctuate in the future due to changes in foreign currency exchange rates.

Provision for (Benefit from) Income Taxes

We are subject to income taxes in the United States and foreign jurisdictions in which we operate. Foreign jurisdictions have statutory tax rates different from those in the United States. Accordingly, our effective tax rate will vary depending on the relative proportion of foreign to U.S. income, the utilization of foreign tax credits and changes in tax laws.

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. A valuation allowance is provided when it is more likely than not that the deferred tax assets will not be realized. We have established a full valuation allowance to offset our U.S. and Netherlands net deferred tax assets due to a history of losses and the uncertainty of realizing future tax benefits from our net operating loss carryforwards and other deferred tax assets. It is possible that within the next 12 months there may be sufficient positive evidence to release a portion or all of the valuation allowance. Release of the valuation allowance in the U.S. and the Netherlands would result in a benefit to income tax expense for the period the release is recorded, which could have a material impact on net earnings. The timing and amount of the potential valuation allowance release are subject to significant management judgment, as well as prospective earnings in the U.S. and in the Netherlands.

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Results of Operations

The following table sets forth our condensed consolidated results of operations for the periods indicated. The period-to-period comparison of financial results is not necessarily indicative of financial results to be achieved in future periods.

	Three Months Ended								Six Months Ended
	April 03, 2021				March 28, 2020				April 3, 2021				March 28, 2020
(Dollars in thousands)	$		%		$		%		$		%		$		%
Revenue	$	332,949	100.0	%	$	175,098	100.0	%	$	978,532	100.0	%	$	737,181	100.0	%
Cost of revenue (1)	167,173		50.2		102,089		58.3		513,331		52.5		436,552		59.2
Gross profit	165,776		49.8		73,009		41.7		465,201		47.5		300,629		40.8
Operating expenses
Research and development (1)	56,370		16.9		49,593		28.3		108,717		11.1		102,120		13.9
Sales and marketing(1)	57,205		17.2		50,504		28.8		131,658		13.5		127,928		17.4
General and administrative (1)	39,806		12.0		26,119		14.9		75,047		7.7		56,327		7.6
Total operating expenses	153,381		46.1		126,216		72.1		315,422		32.2		286,375		38.8
Operating income (loss)	12,395		3.7		(53,207)		(30.4)		149,779		15.3		14,254		1.9
Other income (expense), net
Interest income	44		—		874		0.5		80		—		1,873		0.3
Interest expense	(182)		(0.1)		(374)		(0.2)		(448)		—		(827)		(0.1)
Other income (expense), net	(1,578)		(0.5)		(1,423)		(0.8)		2,680		0.3		3,001		0.4
Total other income (expense), net	(1,716)		(0.5)		(923)		(0.5)		2,312		0.2		4,047		0.5
Income (loss) before provision for (benefit from) income taxes	10,679		3.2		(54,130)		(30.9)		152,091		15.5		18,301		2.5
Provision for (benefit from) income taxes	(6,542)		(2.0)		(1,810)		(1.0)		2,578		0.3		(153)		—
Net income (loss)	$	17,221	5.2	%	$	(52,320)	(29.9)	%	$	149,513	15.3	%	$	18,454	2.5	%
Adjusted EBITDA (2)	$	48,513	14.6	%	$	(28,382)	(16.2)	%	$	214,779	21.9	%	$	64,836	8.8	%

(1)Amounts include stock-based compensation expense as follows:

	Three Months Ended								Six Months Ended
	April 03, 2021				March 28, 2020				April 03, 2021				March 28, 2020
(In thousands, except percentages)	$		%		$		%		$		%		$		%
Cost of revenue	$	261	0.1	%	$	278	0.2	%	$	474	—	%	$	561	0.1	%
Research and development	6,683		2.0		5,427		3.1		12,942		1.3		10,543		1.4
Sales and marketing	3,632		1.1		3,407		1.9		7,040		0.7		6,948		0.9
General and administrative	5,787		1.7		4,282		2.4		10,751		1.1		8,546		1.2
Total stock-based compensation expense	$	16,363	4.9	%	$	13,394	7.6	%	$	31,207	3.2	%	$	26,598	3.6	%

(2) Adjusted EBITDA is a financial measure that is not calculated in accordance with U.S. GAAP. See the sections titled “Adjusted EBITDA and adjusted EBITDA margin” and “Non-GAAP financial measures” above.

26

Comparison of the three and six months ended April 3, 2021 and March 28, 2020

Revenue

Comparison of the three months ended April 3, 2021 and March 28, 2020

	Three Months Ended				Change
	April 3, 2021		March 28, 2020		$		%
(In thousands, except percentages)
Sonos speakers	$	267,534	$	116,367	$	151,167	129.9	%
Sonos system products	52,062		47,202		4,860		10.3	%
Partner products and other revenue	13,353		11,529		1,824		15.8	%
Total revenue	$	332,949	$	175,098	$	157,851	90.2	%

Total revenue increased 90.2% for the three months ended April 3, 2021 compared to the three months ended March 28, 2020. The growth during the quarter was driven by strong overall demand across all our product categories with the largest contribution coming from our Sonos speakers category led by the continued success of Arc and Sub. We were able to fulfill more of the strong demand for our products than expected due to ongoing supply chain capacity investments as well as improved shipping and logistics processes. Additionally, in the prior year quarter we had lower volumes which were the result of certain retail partners rebalancing inventory and the negative effect of the COVID-19 pandemic on replenishment orders in the majority of our end-markets in the prior year quarter. This growth was partially offset by the impact of continued constrained product availability and industry-wide supply chain challenges.

Sonos speakers revenue represented 80.4% of total revenue for the three months ended April 3, 2021. The category increased 129.9% compared to the three months ended March 28, 2020 led by the introduction of Arc in June 2020 and the continued success of Sub. Additionally, in the prior year quarter we had year-over-year revenue declines which were the result of certain retail partners rebalancing inventory and the negative effect of the COVID-19 pandemic on replenishment orders in the majority of our end-markets in the prior year quarter. Sonos system products represented 15.6% of total revenue for the three months ended April 3, 2021 and increased 10.3% compared to the three months ended March 28, 2020. Partner products and other revenue represented 4.0% of total revenue for the three months ended April 3, 2021 and increased by 15.8% compared to the three months ended March 28, 2020. The increase was driven by our accessories, Sonance, and professional services partially offset by IKEA related revenue as the retailer continues to have slowed ordering modules as a result of cyclical product launches in this business model and given lighter foot traffic in stores and modified retail experience due to COVID-19 .

Revenue for the three months ended April 3, 2021 compared to the three months ended March 28, 2020 increased 90.2% in the Americas, increased 99.7% in EMEA, and increased 55.6% in APAC. The rate of increase in the APAC region was slowed due to the recognition of IKEA-related revenue in that region which declined compared to the three months ended March 28, 2020.

In constant currency U.S. dollars, total revenue increased by 83.5% for the three months ended April 3, 2021 compared to the three months ended March 28, 2020. We calculate constant currency growth percentages by translating our prior-period financial results using the current period average currency exchange rates and comparing these amounts to our current period reported results.

	Three Months Ended
	April 3, 2021	March 28, 2020	Change
(products sold units in thousands)
Total products sold	1,039	681	358	52.6	%

The volume of products sold increased 52.6% for the three months ended April 3, 2021 compared to the three months ended March 28, 2020 primarily driven by an increase in Sonos speakers revenue category. The rate of increase of volume of products sold and revenue differed for the three months ended April 3, 2021 compared to the three months ended March 28, 2020 primarily due to product mix.

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Comparison of the six months ended April 3, 2021 and March 28, 2020

	Six Months Ended				Change
	April 3, 2021		March 28, 2020		$		%
(In thousands, except percentages)
Sonos speakers	$	795,050	$	583,044	212,006		36.4	%
Sonos system products	149,820		108,723		41,097		37.8	%
Partner products and other revenue	33,662		45,414		(11,752)		(25.9)	%
Total revenue	$	978,532	$	737,181	$	241,351	32.7	%

Total revenue increased 32.7% for the six months ended April 3, 2021 compared to the six months ended March 28, 2020. The growth was primarily driven by strong overall demand for our products. Additionally, in the prior year quarter we had year-over-year revenue declines which were the result of certain retail partners rebalancing inventory and the negative effect of the COVID-19 pandemic on replenishment orders in the majority of our end-markets in the prior year second quarter. This growth was partially offset by the impact of constrained product availability and continued industry-wide supply chain challenges.

Sonos speakers revenue represented 81.2% of total revenue for the six months ended April 3, 2021. The category increased 36.4% compared to the six months ended March 28, 2020 led by the continued success of Arc, Sub, and Move. Sonos system products represented 15.3% of total revenue for the six months ended April 3, 2021 and increased 37.8% compared to the six months ended March 28, 2020. Partner products and other revenue represented 3.4% of total revenue for the six months ended April 3, 2021 and decreased by 25.9% compared to the six months ended March 28, 2020. This decline was driven by IKEA as the retailer continues to have slowed ordering modules as a result of cyclical product launches in this business model and given lighter foot traffic in stores and modified retail experience due to COVID-19 .

Revenue for the six months ended April 3, 2021 compared to the six months ended March 28, 2020 increased 38.5% in the Americas, increased 31.2% in EMEA, and increased 1.6% in APAC. The rate of growth in the APAC region was slowed due to the recognition of IKEA-related revenue in that region which declined compared to the six months ended March 28, 2020.

In constant currency U.S. dollars, total revenue increased by 28.8% for the six months ended April 3, 2021 compared to the six months ended March 28, 2020. We calculate constant currency growth percentages by translating our prior-period financial results using the current period average currency exchange rates and comparing these amounts to our current period reported results.

	Six Months Ended
	April 3, 2021	March 28, 2020	Change
(products sold units in thousands)
Total products sold	3,688	3,620	68	1.9	%

Volume growth of products sold for the six months ended April 3, 2021 compared to the six months ended March 28, 2020 was driven by growth in Sonos speakers and Sonos system products categories. Volume growth was partially offset by volume decline in partner products and other revenue due to IKEA related products as the retailer slowed ordering modules given lighter foot traffic in stores and modified retail experience due to COVID-19 and as a result of cyclical product launches in this business model. The rate of increase of volume of products sold and revenue differed for the six months ended April 3, 2021 compared to the six months ended March 28, 2020 primarily due to product mix on revenue as there was a continued shift to higher-priced products.

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Cost of Revenue and Gross Profit

Comparison of the three months ended April 3, 2021 and March 28, 2020

	Three Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
Cost of revenue	$	167,173		$	102,089		$	65,084	63.8	%
Gross profit	$	165,776		$	73,009		$	92,767	127.1	%
Gross margin	49.8		%	41.7		%

The increase in cost of revenue for the three months ended April 3, 2021 compared to the three months ended March 28, 2020 is driven by the increase in products sold, as well as an overall increase in shipping and logistics costs incurred related to industry-wide supply chain dynamics. These increases were partially offset by a reduction in tariff expenses during the quarter, recognition of $1.7 million in refunds from tariffs paid in prior periods, as well as fixed cost leverage on account of higher sales volume.

Gross margin increased 810 basis points for the three months ended April 3, 2021 compared to the three months ended March 28, 2020. The increase was primarily due to lower promotional discounts leading up to the "At Home With Sonos" campaign in the prior year. The improvement was also driven by the reduction in tariff costs as we continue to diversify into Malaysia and experienced a reduction in tariff rate compared to the prior year. We also recognized $1.7 million in refunds from tariffs paid in prior periods. Additional favorability was driven by a shift into higher margin products and channels as well as fixed costs leverage on higher sales volume. The increase was partially offset by increased component costs and shipping and logistics costs incurred both of which related to broader industry-wide supply chain dynamics. Excluding the net effects of tariffs in both periods, gross margin would have been 50.4%, an increase of 510 basis points, for the three months ended April 3, 2021 compared to the three months ended March 28, 2020. We calculate gross margin excluding the effects of tariffs by removing the net impact of tariffs imposed on goods imported from China to the U.S. from gross profit divided by total revenue.

Comparison of the six months ended April 3, 2021 and March 28, 2020

	Six Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
Cost of revenue	$	513,331		$	436,552		$	76,779	17.6	%
Gross profit	$	465,201		$	300,629		$	164,572	54.7	%
Gross margin	47.5		%	40.8		%

The increase in cost of revenue for the six months ended April 3, 2021 compared to the six months ended March 28, 2020 is driven by the increase in revenue as well as expedited air freight shipping, product mix, and an overall increase in shipping costs incurred as related to industry-wide supply chain dynamics. This increase was partially offset by a reduction in tariff expenses during the first two quarters, recognition of $6.2 million in refunds from tariffs paid in prior periods, as well as product and material cost savings realized in the first quarter of fiscal 2021 and fixed cost leverage on account of higher sales volume in the second quarter of fiscal 2021.

Gross margin increased 670 basis points for the six months ended April 3, 2021 compared to the six months ended March 28, 2020. The improvement was mainly driven by the reduction in tariff costs as we continue to diversify into Malaysia and experienced a reduction in tariff rate compared to the prior year. We also recognized $6.2 million in refunds from tariffs paid in prior periods. Additional favorability was driven by a shift into higher margin products and channels, product and material cost savings realized in the first quarter and fixed cost leverage on account of higher sales volume. The increase was partially offset by increased shipping and logistics costs incurred related to broader industry-wide supply chain dynamics and increased spot buys. Excluding the net effects of tariffs in both periods, gross margin would have been 47.4%, an increase of 310 basis points, for the six months ended April 3, 2021 compared to the three months ended March 28, 2020. We calculate gross margin excluding the effects of tariffs by removing the net impact of tariffs imposed on goods imported from China to the U.S. from gross profit divided by total revenue.

29

Research and Development

Comparison of the three months ended April 3, 2021 and March 28, 2020

	Three Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
Research and development	$	56,370		$	49,593		$	6,777	13.7	%
Percentage of revenue	16.9		%	28.3		%

Research and development expenses increased $6.8 million, or 13.7%, for the three months ended April 3, 2021 compared to the three months ended March 28, 2020. This increase was led by higher personnel-related expenses of $11.6 million due to higher bonus and stock-based compensation. The increase was partially offset by a decrease in product development costs and professional fees of $2.9 million related to the costs of diversifying our manufacturing into Malaysia in the prior year, cost savings associated with the 2020 restructuring plan, as well as a reduction in costs related to global travel restrictions and work-from-home policies due to COVID-19.

Comparison of the six months ended April 3, 2021 and March 28, 2020

	Six Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
Research and development	$	108,717		$	102,120		$	6,597	6.5	%
Percentage of revenue	11.1		%	13.9		%

Research and development expenses increased $6.6 million, or 6.5%, for the six months ended April 3, 2021 compared to the six months ended March 28, 2020. The increase was primarily due to higher personnel-related expenses of $13.0 million due to higher bonus and stock-based compensation. This increase was partially offset by a decrease in product development costs and professional fees of $5.7 million costs related to the costs of diversifying our manufacturing into Malaysia in the prior year, cost savings associated with the 2020 restructuring plan, as well as a reduction of costs related to global travel restrictions and work-from-home policies due to COVID-19.

Sales and Marketing

Comparison of the three months ended April 3, 2021 and March 28, 2020

	Three Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
Sales and marketing	$	57,205		$	50,504		$	6,701	13.3	%
Percentage of revenue	17.2		%	28.8		%

Sales and marketing expenses increased $6.7 million, or 13.3%, for the three months ended April 3, 2021 compared to the three months ended March 28, 2020. This increase was led by higher personnel-related expenses of $4.1 million due to higher bonus and stock-based compensation as well as higher marketing expenses of $3.8 million. These increases were partially offset by cost savings associated with the 2020 restructuring plan and a reduction of costs related to global travel restrictions and work-from-home policies due to COVID-19.

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Comparison of the six months ended April 3, 2021 and March 28, 2020

	Six Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
Sales and marketing	$	131,658		$	127,928		$	3,730	2.9	%
Percentage of revenue	13.5		%	17.4		%

Sales and marketing expenses increased $3.7 million, or 2.9%, for the six months ended April 3, 2021 compared to the six months ended March 28, 2020. The increase was primarily due to higher marketing expenses of $8.1 million, higher revenue-related sales fees resulting from higher sales in our direct-to-consumer business of $5.1 million, and higher personnel-related expenses of $2.4 million due to higher bonus and stock-based compensation. These increases were partially offset by cost savings associated with the 2020 restructuring plan of $7.0 million and a reduction of costs related to global travel restrictions and work-from-home policies due to COVID-19.

General and Administrative

Comparison of the three months ended April 3, 2021 and March 28, 2020

	Three Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
General and administrative	$	39,806		$	26,119		$	13,687	52.4	%
Percentage of revenue	12.0		%	14.9		%

General and administrative expenses increased $13.7 million, or 52.4%, for the three months ended April 3, 2021 compared to the three months ended March 28, 2020. This increase was primarily due to $9.3 million of incremental legal fees paid in connection with our IP litigation and higher personnel-related expenses due to higher bonus and stock-based compensation of $4.8 million. These increases were partially offset by cost savings associated with the 2020 restructuring plan and a reduction of costs related to global travel restrictions and work-from-home policies due to COVID-19.

Comparison of the six months ended April 3, 2021 and March 28, 2020

	Six Months Ended						Change
	April 3, 2021			March 28, 2020			$		%
(In thousands, except percentages)
General and administrative	$	75,047		$	56,327		$	18,720	33.2	%
Percentage of revenue	7.7		%	7.6		%

General and administrative expenses increased $18.7 million, or 33.2%, for the six months ended April 3, 2021 compared to the six months ended March 28, 2020. The increase was primarily due to $16.0 million incremental legal fees paid in connection with our IP litigation and higher personnel-related expenses of $4.8 million due to higher bonus and stock-based compensation. These increases were partially offset by cost savings associated with the 2020 restructuring plan and a reduction of costs related to global travel restrictions and work-from-home policies due to COVID-19.

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Interest Income, Interest Expense and Other Income (Expense), Net

Comparison of the three months ended April 3, 2021 and March 28, 2020

	Three Months Ended				Change
	April 3, 2021		March 28, 2020		$		%
(In thousands, except percentages)
Other income (expense), net
Interest income	$	44	$	874	$	(830)	(95.0)	%
Interest expense	$	(182)	$	(374)	$	192	(51.3)	%
Other income (expense), net	$	(1,578)	$	(1,423)	$	(155)	10.9	%

Interest income for the three months ended April 3, 2021 compared to the three months ended March 28, 2020 decreased due to lower yields on our cash and cash equivalents. Interest expense for the three months ended April 3, 2021 compared to the three months ended March 28, 2020 decreased primarily due to a lower principal balance. The decrease in other income, net for the three months ended April 3, 2021 compared to the three months ended March 28, 2020 was due to foreign currency exchange losses.

Comparison of the six months ended April 3, 2021 and March 28, 2020

	Six Months Ended				Change
	April 3, 2021		March 28, 2020		$		%
(In thousands, except percentages)
Other income (expense), net
Interest income	$	80	$	1,873	$	(1,793)	(95.7)	%
Interest expense	$	(448)	$	(827)	$	379	(45.8)	%
Other income (expense), net	$	2,680	$	3,001	$	(321)	(10.7)	%

Interest income for the six months ended April 3, 2021 compared to the six months ended March 28, 2020 decreased due to lower yields on our cash and cash equivalents. Interest expense for the six months ended April 3, 2021 compared to the six months ended March 28, 2020 decreased primarily due to a lower principal balance. The decrease in other income, net for the six months ended April 3, 2021 compared to the three months ended March 28, 2020 was due to foreign currency exchange losses.

Provision for (Benefit from) Income Taxes

Comparison of the three months ended April 3, 2021 and March 28, 2020

	Three Months Ended				Change
	April 3, 2021		March 28, 2020		$		%
(In thousands, except percentages)
Provision for (benefit from) income taxes	$	(6,542)	$	(1,810)	$	(4,732)	*
*not meaningful

The benefit from income taxes increased from $1.8 million for the three months ended March 28, 2020 to $6.5 million for the three months ended April 3, 2021.

For the three-months ended April 3, 2021, we recorded a provision for income taxes by applying an estimated AETR to year-to-date earnings in accordance with ASC 740 offset by a discrete income tax benefit for U.S. share-based compensation resulting in an overall benefit from income taxes of $6.5 million. For the three-months ended March 28, 2020, we recorded a benefit from U.S. state income taxes of $1.8 million.

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Comparison of the six months ended April 3, 2021 and March 28, 2020

	Six Months Ended				Change
	April 3, 2021		March 28, 2020		$		%
(In thousands, except percentages)
Provision for (benefit from) income taxes	$	2,578	$	(153)	$	2,731	*
*not meaningful

The provision for, benefit from income taxes changed from a benefit of $0.2 million for the six months ended March 28, 2020 to a provision of $2.6 million for the six months ended April 3, 2021.

For the six months ended April 3, 2021, we recorded a provision for income taxes by applying an estimated AETR to year-to-date earnings in accordance with ASC 740 offset by a discrete income tax benefit for U.S. share-based compensation resulting in an overall income tax provision of $2.6 million. For the six months ended March 28, 2020, we recorded a provision for income taxes of $0.4 million for certain profitable foreign entities and an income tax benefit of $0.6 million due to a favorable release of uncertain tax positions in the U.S. coinciding with the issuance of the BEAT Regulations.

Liquidity and Capital Resources

Our operations are financed primarily through cash flows from operating activities and net proceeds from the sale of our equity securities. As of April 3, 2021, our principal sources of liquidity consisted of cash flows from operating activities, cash and cash equivalents of $638.9 million, including $88.0 million held by our foreign subsidiaries, proceeds from the exercise of stock options and borrowing capacity under the Credit Facility. In accordance with our policy, the undistributed earnings of our non-U.S. subsidiaries remain indefinitely reinvested outside of the United States as of April 3, 2021, as they are required to fund needs outside of the United States. In the event funds from foreign operations are needed to fund operations in the United States and if U.S. tax has not already been previously provided, we may be required to accrue and pay additional U.S. taxes to repatriate these funds.

In response to the impacts of COVID-19, we implemented a number of initiatives to maintain our liquidity and rationalize our operating expenses and initiated the 2020 restructuring plan during the third quarter of fiscal 2020. We believe our existing cash and cash equivalent balances, cash flows from operations and committed credit lines will be sufficient to meet our long-term working capital and capital expenditure needs for at least the next 12 months. Our future capital requirements may vary materially from those currently planned and will depend on many factors, including our rate of revenue growth, the timing and extent of spending on research and development efforts and other business initiatives, our planned sales and marketing activities, the timing of new product introductions, market acceptance of our products and overall economic conditions. To the extent that current and anticipated sources of liquidity are insufficient to fund our future business activities and requirements, we may be required to seek additional equity or debt financing. The sale of additional equity would result in increased dilution to our stockholders. If we were to incur additional debt financing it would result in increased debt service obligations and the instruments governing such debt could provide for operating and financing covenants that would restrict our operations.

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Debt Obligations

Our debt obligation consists of the Credit Facility. In January 2021, we repaid all of our outstanding principal balance of $24.9 million under the Term Loan which had an original maturity date of October 2021. As of April 3, 2021 we did not have any remaining short- or long-term debt obligations, and as of October 3, 2020 our short- and long-term debt obligations were as follows:

	As of
	October 3, 2020
(In thousands, except percentages)
Term Loan (1)	2.4 %	$	25,000
Unamortized debt issuance costs (2)		(82)
Total indebtedness		24,918
Less short-term portion		(6,667)
Long-term debt		$	18,251

(1)Original maturity date of October 2021, bore interest at a variable rate equal to an adjusted LIBOR plus 2.25%, payable quarterly.

(2)Debt issuance costs are recorded as a debt discount and recorded as interest expense over the term of the agreement.

The Credit Facility allows us to borrow up to $80.0 million restricted to the value of the borrowing base which is based on the value of our inventory and accounts receivable and is subject to quarterly redetermination. The Credit Facility matures in October 2021 and may be drawn as Commercial Bank Floating Rate Loans (at the higher of prime rate or adjusted LIBOR plus 2.50%) or Eurocurrency Loans (at LIBOR plus an applicable margin). As of both April 3, 2021 and October 3, 2020, we did not have any outstanding borrowings and had $2.9 million and $0.5 million, respectively, in undrawn letters of credit that reduce the availability under the Credit Facility.

Debt obligations under the Credit Facility require that we maintain a consolidated fixed charge ratio of at least 1.0, restrict distribution of dividends unless certain conditions are met, such as having a fixed charge ratio of at least 1.15, and require financial statement reporting and delivery of borrowing base certificates. As of April 3, 2021 and October 3, 2020, we were in compliance with all financial covenants. The Credit Facility is collateralized by eligible inventory and accounts receivable, as well as our intellectual property including patents and trademarks.

Cash Flows

The following table summarizes our cash flows for the periods indicated:

	Six Months Ended
	April 3, 2021		March 28, 2020
(In thousands)
Net cash provided by (used in):
Operating activities	$	175,953	$	35,368
Investing activities	(19,927)		(62,089)
Financing activities	74,663		(28,560)
Effect of exchange rate changes	1,139		(107)
Net increase in cash, cash equivalents and restricted cash	$	231,828	$	(55,388)

Cash flows from operating activities

Net cash provided by operating activities of $176.0 million for the six months ended April 3, 2021 consisted of net income of $149.5 million, non-cash adjustments of $47.1 million and a net decrease in cash related to changes in operating assets and liabilities of $20.6 million. Non-cash adjustments primarily consisted of stock-

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based compensation expense of $31.2 million, depreciation and amortization of $16.7 million, and other non-cash adjustments, partially offset by foreign currency transaction gain and deferred income taxes. The net decrease in cash related to operating assets and liabilities was primarily due to decrease in accounts payable and accrued expenses of $36.5 million driven by decrease in inventory; an increase in other assets of $22.0 million; and an increase in accounts receivable of $13.3 million due to revenue growth driven by strong overall demand. The decrease in operating assets and liabilities was partially offset by a decrease in inventory of $39.6 million due to the continuing impact of constrained product availability due to industry-wide supply chain challenges; an increase in deferred revenue of $8.4 million; an increase in accrued compensation of $2.1 million; and an increase in other liabilities of $1.0 million.

Cash flows from investing activities

Cash used in investing activities for the six months ended April 3, 2021 of $19.9 million was due to payments for property, equipment, intangible and other assets. These payments were primarily comprised of manufacturing-related tooling and test equipment to support the launch of new products, acquired intellectual property, as well as other assets.

Cash flows from financing activities

Cash provided by financing activities for the six months ended April 3, 2021 of $74.7 million was due to proceeds from the exercise of stock options of $119.2 million, offset by repayments of borrowings of $25.0 million related to our early repayment of all of our outstanding principal balance under the Term Loan, payments for repurchases of common stock related to shares withheld for taxes associated with vesting of RSUs of $18.8 million, and payments for repurchases of common stock.

Commitments and Contingencies

At April 3, 2021, we had $57.5 million in non-cancelable purchase commitments for inventory that we expect to purchase in the remainder of fiscal 2021.

For more additional information, see Note 7 - Commitments and Contingencies in the above notes to condensed consolidated financial statements and Part II, Item 1, "Legal proceedings" of this Form 10-Q.

Off-Balance Sheet Arrangements

We have not entered into any off-balance sheet arrangements, except as described above, and do not have any holdings in variable interest entities.

Critical Accounting Policies and Estimates

Our unaudited condensed consolidated financial statements are prepared in accordance with U.S. GAAP. The preparation of these unaudited condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses and related disclosures. We evaluate our estimates and assumptions on an ongoing basis. Our estimates are based on historical experience and various other assumptions that we believe to be reasonable under the circumstances. Actual results could differ materially from those estimates.

Other than items discussed in Note 2 of our condensed consolidated financial statements, there have been no material changes to our critical accounting policies as compared to the critical accounting policies and significant judgments and estimates disclosed in our Annual Report.

Item 3.    Quantitative and Qualitative Disclosures About Market Risk

We are exposed to financial market risks, including changes in currency exchange rates and interest rates. For quantitative and qualitative disclosures about market risk, refer to Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk, in our Annual Report. Our exposure to market risk has not changed materially, except as follows:

Foreign Currency Risk

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Our inventory purchases are primarily denominated in U.S. dollars. Our international sales are primarily denominated in foreign currencies and any movement in the exchange rate between the U.S. dollar and the currencies in which we conduct sales in foreign countries could have an impact on our revenue, principally for sales denominated in the euro and the British pound. A portion of our operating expenses are incurred outside the United States and are denominated in foreign currencies, which are also subject to foreign currency exchange rate fluctuations. In certain countries, where we may invoice customers in the local currency, our revenues benefit from a weaker dollar and are adversely affected by a stronger dollar. The opposite impact occurs in countries where we record expenses in local currencies. In those cases, our costs and expenses benefit from a stronger dollar and are adversely affected by a weaker dollar.

We do not currently use foreign exchange contracts or derivatives to hedge any foreign currency exposures. The volatility of exchange rates depends on many factors that we cannot forecast with reliable accuracy. Our continued international expansion increases our exposure to exchange rate fluctuations and, as a result, such fluctuations could have a significant impact on our future results of operations.

For the three months ended April 3, 2021 and March 28, 2020, we recognized a loss from foreign currency of $1.6 million and $1.5 million, respectively. For the six months ended April 3, 2021 and March 28, 2020, we recognized a gain from foreign currency of $2.6 million and $2.9 million, respectively. Based on transactions denominated in currencies other than respective functional currencies as of April 3, 2021, a hypothetical adverse change of 10% would have resulted in an adverse impact on Income (loss) before provision for (benefit from) income taxes of approximately $5.2 million for the three months ended and $14.2 million for the six months ended April 3, 2021.

Item 4.    Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer, we have evaluated the effectiveness of our disclosure controls and procedures as required under Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended (“Exchange Act”) as of April 3, 2021. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that these disclosure controls and procedures were effective at a reasonable assurance level as of the end of the period covered by this Quarterly Report on Form 10-Q.

Changes in Internal Control

There were no changes in our internal control over financial reporting in management's evaluation pursuant to Rule 13a-15(f) during the quarter ended April 3, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. Other than the matters described in Note 7 of the notes to our condensed consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q, we were not a party to any legal proceedings that in the opinion of our management, if determined adversely to us, would individually or taken together have a material adverse effect on our business, operating results, financial condition or cash flows. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources, and other factors.

Item 1A. Risk Factors

Investing in our common stock involves a high degree of risk. You should carefully consider the risks and uncertainties described below, as well as the other information in this Quarterly Report on Form 10-Q, including our condensed consolidated financial statements and the related notes, and the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” before making an investment decision. The occurrence of any of the events or developments described below could materially and adversely affect our business, financial condition, results of operations and growth prospects. In such an event, the market price of our common stock could decline, and you may lose all or part of your investment. Additional risks and uncertainties not currently known to us or that we currently believe are not material may also impair our business, financial condition, results of operations and growth prospects.

Economic, Industry and Strategic Risk

Our business has been, and could in the future be, adversely affected by the ongoing COVID-19 pandemic.

In December 2019, COVID-19 was reported in China and subsequently was declared a global pandemic in March 2020 by the World Health Organization. To date, COVID-19 and related preventative and mitigation measures have negatively impacted the global economy, disrupted consumer spending and global supply chains, and created significant volatility and disruption of financial markets. Our business and operating results have been affected by the COVID-19 pandemic as a result of, among other things, challenges we and our retail partners face in anticipating the global demand for our products given uncertainties caused by the pandemic, as well as the temporary closure of some of the retail stores in our end-markets. Although retail stores began to reopen in the third quarter of fiscal 2020 in some of our end-markets, many remain subject to operational restrictions which may impact customer purchasing behavior and, in the event of a COVID-19 resurgence in such end-markets, some such stores have and others may in the future close again.

The COVID-19 pandemic has also had certain adverse impacts on our supply chain. The pandemic has led to industry-wide supply chain challenges that have resulted in delayed product availability. These industry-wide challenges included shipping and logistics challenges and significant limits on component supplies. These impacts on our supply chain have resulted in delayed product availability and have adversely impacted, and may continue to adversely impact, our ability to meet our product demand, result in additional costs, result in customer dissatisfaction in the event of continued inventory shortages, or may otherwise adversely impact our business and results of operations. See "We depend on a limited number of third-party components suppliers and logistics providers" in this Item IA. Risk Factors, for more information. These challenges have also further delayed our efforts to fully diversify our supply chain into Malaysia until fiscal 2022, which we expect to impact us as long as the global supply chain is experiencing these challenges.

COVID-19 has negatively impacted the global economy to date and may cause further global economic disruption. While the duration and severity of the economic impacts of COVID-19 are unknown, it is possible that such economic impacts may be prolonged and continue beyond the development and administration of any vaccines or therapeutics. In particular, any recession, depression, or other sustained adverse market event resulting from COVID-19 may result in high levels of unemployment and associated loss of personal income, decreased consumer confidence, and lower discretionary spending, which could materially and adversely affect our business, results of operations, financial position and cash flows.

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The extent of the impact of the COVID-19 pandemic on our business and operating results is uncertain and difficult to predict. While vaccines have recently been developed and have begun to be administered in certain of our end-markets, and the impact of COVID-19 may eventually be contained or mitigated, we cannot predict the timing or effectiveness of the vaccine roll-out globally, the timing of easing of preventative or mitigation measures or mandates, or any impact of a global vaccine roll-out on the global economy, our business or our suppliers. Moreover, we have experienced increased demand for our products during the COVID-19 pandemic, particularly in our direct-to-consumer channel, and we cannot predict how or whether the easing of COVID-19 preventative or mitigation measures or mandates will impact demand for our products or shift consumer spending habits in general.

The home audio and consumer electronics industries are highly competitive.

The markets in which we operate are extremely competitive and rapidly evolving, and we expect that competition will intensify in the future. Our competition includes established, well-known sellers of speakers and sound systems such as Bang & Olufsen, Bose, Samsung (and its subsidiaries Harman International and JBL), Sony and Sound United (and its subsidiaries Denon and Polk), and developers of voice-enabled speakers and systems such as Amazon, Apple and Google. We could also face competition from new market entrants, some of whom might be current partners of ours.

In order to deliver products that appeal to changing and increasingly diverse consumer preferences and to overcome the fact that a relatively high percentage of consumers may already own or use products that they perceive to be similar to those that we offer, we must develop superior technology, anticipate increasingly diverse consumer tastes and rapidly develop attractive products with competitive selling prices. In addition, many of our current and potential partners have business objectives that may drive them to sell their speaker products at a significant discount compared to ours. Amazon and Google, for example, both currently offer their speaker products at significantly lower prices than Sonos One, Sonos Beam, Sonos Arc and Sonos Move. Many of these partners may subsidize these prices and seek to monetize their customers through the sale of additional services rather than the speakers themselves. Even if we are able to efficiently develop and offer innovative products at competitive selling prices, our operating results and financial condition may be adversely impacted if we are unable to effectively anticipate and counter the ongoing price erosion that frequently affects consumer products or if the average selling prices of our products decrease faster than we are able to reduce our manufacturing costs.

Most of our competitors have greater financial, technical and marketing resources available to them than those available to us, and, as a result, they may develop competing products that cause the demand for our products to decline. Our competitors have established, or may establish, cooperative relationships among themselves or with third parties to increase the abilities of their products to address the needs of our prospective customers, and other companies may enter our markets by entering into strategic relationships with our competitors. A failure to effectively anticipate and respond to these established and new competitors may adversely impact our business and operating results.

Further, our current and prospective competitors may consolidate with each other or acquire companies that will allow them to develop products that better compete with our products, which would intensify the competition that we face and may also disrupt or lead to termination of our distribution, technology and content partnerships. For example, if one of our competitors were to acquire one of our content partners, the consolidated company may decide to disable the streaming functionality of its service with our products.

If we are unable to compete with these consolidated companies or if consolidation in the market disrupts our partnerships or reduces the number of companies we partner with, our business would be adversely affected.

To remain competitive and stimulate consumer demand, we must successfully manage frequent new product introductions and transitions.

Due to the quickly evolving and highly competitive nature of the home audio and broader consumer electronics industry, we must frequently introduce new products, enhance existing products and effectively stimulate customer demand for new and upgraded products in both mature and developing markets. For example, in June 2020, we introduced Arc, our premium smart soundbar, Five and the next generation of our Sub and, in April 2021, we introduced Roam, our portable smart speaker. The successful introduction of these products and any new products depends on a number of factors, such as the timely completion of development efforts to correspond with limited windows for market introduction. We face significant challenges in managing the risks associated with new product introductions and production ramp-up issues, including accurately forecasting initial consumer demand, effectively

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managing any third-party strategic alliances or collaborative partnerships related to new product development or commercialization, as well as the risk that new products may have quality or other defects in the early stages of introduction or may not achieve the market acceptance necessary to generate sufficient revenue. New and upgraded products can also affect the sales and profitability of existing products. Accordingly, if we cannot properly manage the introduction of new products, our operating results and financial condition may be adversely impacted, particularly if the cadence of new product introductions increases as we expect.

We have a recent history of losses and expect to incur increased operating costs in the future, and we may not achieve or sustain profitability or consistent revenue growth.

We have experienced net losses in our recent annual periods. In the fiscal years ended October 3, 2020, September 28, 2019 and September 29, 2018, we had net losses of $20.1 million, $4.8 million and $15.6 million, respectively. We had an accumulated deficit of $228.5 million as of October 3, 2020. We expect our operating expenses to increase in the future as we expand our operations and execute on our product roadmap and strategy. We plan to make significant future expenditures related to the expansion of our business and our product offerings, including investments in:

•research and development to continue to introduce innovative new products, enhance existing products and improve our customers’ listening experience;

•sales and marketing to expand our global brand awareness, promote new products, increase our customer base and expand sales within our existing customer base; and

•legal, accounting, information technology and other administrative expenses to sustain our operations as a public company.

We need to increase our revenue to achieve and maintain profitability in the future and we cannot assure you that we will be able to increase our revenue, particularly in a global recession or depression. For example, the COVID-19 pandemic and related disruptions and uncertainties in the global economy and in consumer spending had certain adverse impacts on our revenue in fiscal 2020. Our ability to achieve revenue growth will depend in part on our ability to execute on our product roadmap and our strategy and to determine the market opportunity for new products. New product introductions may adversely impact our gross margin in the near to intermediate term due to the frequency of these product introductions and their anticipated increased share of our overall product volume. The expansion of our business and product offerings also places a continuous and significant strain on our management, operational and financial resources. In the event that we are unable to grow our revenue, or in the event that revenue grows more slowly than we expect, our operating results could be adversely affected and our stock price could be harmed.

Our investments in research and development may not yield the results expected.

Our business operates in intensely competitive markets characterized by changing consumer preferences and rapid technological innovation. Due to advanced technological innovation and the relative ease of technology imitation, new products tend to become standardized more rapidly, leading to more intense competition and ongoing price erosion. In order to strengthen the competitiveness of our products in this environment, we continue to invest heavily in research and development. However, these investments may not yield the innovation or the results expected on a timely basis, or our competitors may surpass us in technological innovation, hindering our ability to timely commercialize new and competitive products that meet the needs and demands of the market, which consequently may adversely impact our operating results as well as our reputation.

If we are not successful in continuing to expand our direct-to-consumer sales channel by driving consumer traffic and consumer purchases through our website, our business and results of operations could be harmed.

We have invested significant resources in our direct-to-consumer sales channel, primarily through our website, and our future growth relies, in part, on our continued ability to attract consumers to this channel, which has and will require significant expenditures in marketing, software development and infrastructure. If we are unable to continue to drive traffic to, and increase sales through, our website, our business and results of operations could be harmed, particularly during the COVID-19 pandemic during which physical retail stores may be closed or significantly modify their retail experience. The continued success of direct-to-consumer sales through our website is subject to risks associated with e-commerce, many of which are outside of our control. Our inability to adequately respond to

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these risks and uncertainties or to successfully maintain and expand our direct-to-consumer business via our website may have an adverse impact on our results of operations.

If we are unable to accurately anticipate market demand for our products, we may have difficulty managing our production and inventory and our operating results could be harmed.

We must forecast production and inventory needs in advance with our suppliers and manufacturers; our ability to do so accurately could be affected by many factors, including changes in customer demand, new product introductions, sales promotions, channel inventory levels, uncertainty related to the duration and impact of COVID-19, and general economic conditions. If demand does not meet our forecast, excess product inventory could force us to write-down or write-off inventory or to sell the excess inventory at discounted prices, which could cause our gross margin to suffer and impair the strength of our brand. In addition, excess inventory may result in reduced working capital, which could adversely affect our ability to invest in other important areas of our business such as marketing and product development. If our channel partners have excess inventory of our products, they may decrease their purchases of our products in subsequent periods. If demand exceeds our forecast, as it did in parts of fiscal 2020 and fiscal 2021, and we do not have sufficient inventory to meet this demand, we may experience decreased revenue or customer dissatisfaction as a result of any continued inventory shortages or we may have to rapidly increase production which may result in reduced manufacturing quality and customer satisfaction as well as higher supply and manufacturing costs that would lower our gross margin. Any of these scenarios could adversely impact our operating results and financial condition.

Our efforts to expand beyond our core product offerings and offer products with applications outside the home may not succeed and could adversely impact our business.

We may seek to expand beyond our core sound systems and develop products that have wider applications outside the home, such as commercial or office. Developing these products would require us to devote substantial additional resources, and our ability to succeed in developing such products to address such markets is unproven. It is likely that we would need to hire additional personnel, partner with new third parties and incur considerable research and development expenses to pursue such an expansion successfully. We may have less familiarity with consumer preferences for these products and less product or category knowledge, and we could encounter difficulties in attracting new customers due to lower levels of consumer familiarity with our brand. As a result, we may not be successful in future efforts to achieve profitability from new markets, services or new types of products, and our ability to generate revenue from our existing products may suffer. If any such expansion does not enhance our ability to maintain or grow our revenue or recover any associated development costs, our operating results could be adversely affected.

We experience seasonal demand for our products, and if our sales in high-demand periods are below our forecasts, our overall financial condition and operating results could be adversely affected.

Given the seasonal nature of our sales, accurate forecasting is critical to our business. Our fiscal year ends on the Saturday closest to September 30, the holiday shopping season occurs in the first quarter of our fiscal year and the typically slower summer months occur in the fourth quarter of our fiscal year. Historically, our revenue has been significantly higher in our first fiscal quarter due to increased consumer spending patterns during the holiday season. Any shortfalls in expected first fiscal quarter revenue, due to macroeconomic conditions, product release patterns, a decline in the effectiveness of our promotional activities, supply chain disruptions or for any other reason, could cause our annual operating results to suffer significantly. In addition, if we fail to accurately forecast customer demand for the holiday season, we may experience excess inventory levels or a shortage of products available for sale, which could further harm our financial condition and operating results.

The success of our business depends in part on the continued growth of the voice-enabled speaker market and our ability to establish and maintain market share.

We have increasingly focused our product roadmap on voice-enabled speakers. We introduced our first voice-enabled speaker, Sonos One, in October 2017, our first voice-enabled home theater speaker, Sonos Beam, in July 2018, our first Bluetooth-enabled portable speaker with voice control, Sonos Move, in September 2019 and our portable smart speaker, Roam, in April 2021. In June 2020, we introduced Arc, our voice-enabled premium home theater speaker. If the voice-enabled speaker markets do not continue to grow or grow in unpredictable ways, our revenue may fall short of expectations and our operating results may be harmed, particularly since we incur substantial costs to introduce new products in advance of anticipated sales. Additionally, even if the market for

40

voice-enabled speakers does continue to grow, we may not be successful in developing and selling speakers that appeal to consumers or gain sufficient market acceptance. To succeed in this market, we will need to design, produce and sell innovative and compelling products and partner with other businesses that enable us to capitalize on new technologies, some of which have developed or may develop and sell voice-enabled speaker products of their own as further described herein.

If market demand for streaming music does not grow as anticipated or the availability and quality of streaming services does not continue to increase, our business could be adversely affected.

A large proportion of our customer base uses our products to listen to content via subscription-based streaming music services. Accordingly, we believe our future revenue growth will depend in significant part on the continued expansion of the market for streaming music. The success of the streaming music market depends on the quality, reliability and adoption of streaming technology and on the continued success of streaming music services such as Apple Music, Pandora, Spotify and TuneIn. If the streaming music market in general fails to expand or if the streaming services that we partner with are not successful, demand for our products may suffer and our operating results may be adversely affected.

If we are unable to protect our intellectual property, the value of our brand and other intangible assets may be diminished, and our business may be adversely affected.

We rely and expect to continue to rely on a combination of confidentiality and license agreements with our employees, consultants and third parties with whom we have relationships, as well as patent, trademark, copyright and trade secret protection laws, to protect our proprietary rights. In the United States and certain other countries, we have filed various applications for certain aspects of our intellectual property, most notably patents. However, third parties may knowingly or unknowingly infringe our proprietary rights or challenge our proprietary rights, pending and future patent and trademark applications may not be approved, and we may not be able to prevent infringement without incurring substantial expense. Such infringement could have a material adverse effect on our brand, business, financial condition and results of operations. We have initiated legal proceedings to protect our intellectual property rights, and we may file additional actions in the future. For example, on January 7, 2020, we filed a complaint with the U.S. International Trade Commission against Alphabet and Google and a lawsuit in the U.S. District Court for the Central District of California against Google, alleging patent infringement of certain Sonos patents related to our smart speakers and related technology. In addition, on September 29, 2020, we filed a lawsuit against Google in the U.S. District Court for Western District of Texas, alleging infringement of five Sonos wireless audio patents. The cost of defending our intellectual property has been and may in the future be substantial, and there is no assurance we will be successful. Our business could be adversely affected as a result of any such actions, or a finding that any patents-in-suit are invalid or unenforceable. These actions have led and may in the future lead to additional counterclaims or actions against us, which are expensive to defend against and for which there can be no assurance of a favorable outcome. Further, parties we bring legal action against could retaliate through non-litigious means, which could harm our ability to compete against such parties or to enter new markets.

In addition, the regulations of certain foreign countries do not protect our intellectual property rights to the same extent as the laws of the United States. As our brand grows, we may discover unauthorized products in the marketplace that are counterfeit reproductions of our products. If we are unsuccessful in pursuing producers or sellers of counterfeit products, continued sales of these products could adversely impact our brand, business, financial condition and results of operations.

We currently are, and may continue to be, subject to intellectual property rights claims and other litigation which are expensive to support, and if resolved adversely, could have a significant impact on us and our stockholders.

Companies in the consumer electronics industries own large numbers of patents, copyrights, trademarks, domain names and trade secrets, and frequently enter into litigation based on allegations of infringement, misappropriation or other violations of intellectual property or other rights. As we gain an increasingly high profile and face more intense competition in our markets, and as we introduce more products and services, including through acquisitions and through partners, the possibility of intellectual property rights claims against us grows. Our technologies may not be able to withstand any third-party claims or rights against their use, and we may be subject to litigation and disputes. The costs of supporting such litigation and disputes is considerable, and there can be no assurance that a favorable outcome would be obtained. We may be required to settle such litigation and disputes, or we may be subject to an unfavorable judgment in a trial, and the terms of a settlement or judgment against us may be

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unfavorable and require us to cease some or all our operations, limit our ability to use certain technologies, pay substantial amounts to the other party or issue additional shares of our capital stock to the other party, which would dilute our existing stockholders. Further, if we are found to have engaged in practices that are in violation of a third party’s rights, we may have to negotiate a license to continue such practices, which may not be available on reasonable or favorable terms, or may have to develop alternative, non-infringing technology or discontinue the practices altogether. In the event that these practices relate to an acquisition or a partner, we may not be successful in exercising any indemnification rights available to us under our agreements or in recovering damages in the event that we are successful. Each of these efforts could require significant effort and expense and ultimately may not be successful.

If we are not able to maintain and enhance the value and reputation of our brand, or if our reputation is otherwise harmed, our business and operating results could be adversely affected.

Our continued success depends on our reputation for providing high-quality products and consumer experiences, and the “Sonos” name is critical to preserving and expanding our business. Our brand and reputation are dependent on a number of factors, including our marketing efforts, product quality, and trademark protection efforts, each of which requires significant expenditures.

The value of our brand could also be severely damaged by isolated incidents, which may be outside of our control. For example, in the United States, we rely on custom installers of home audio systems for a significant portion of our sales but maintain no control over the quality of their work and thus could suffer damage to our brand or business to the extent such installations are unsatisfactory or defective. Any damage to our brand or reputation may adversely affect our business, financial condition and operating results.

Conflicts with our channel and distribution partners could harm our business and operating results.

Several of our existing products compete, and products that we may offer in the future could compete, with the product offerings of some of our significant channel and distribution partners who have greater financial and technical resources than we do. To the extent products offered by our partners compete with our products, they may choose to market and promote their own products over ours or could end our partnerships and cease selling or promoting our products entirely. Any reduction in our ability to place and promote our products, or increased competition for available shelf or website placement, especially during peak retail periods, such as the holiday shopping season, would require us to increase our marketing expenditures and to seek other distribution channels to promote our products. If we are unable to effectively sell our products due to conflicts with our distribution partners or the inability to find alternative distribution channels, our business would be harmed.

The expansion of our direct-to-consumer channel could alienate some of our channel partners and cause a reduction in product sales from these partners. Channel partners may perceive themselves to be at a disadvantage based on the direct-to-consumer sales offered through our website. Due to these and other factors, conflicts in our sales channels could arise and cause channel partners to divert resources away from the promotion and sale of our products. Further, to the extent we use our mobile app to increase traffic to our website and increase direct-to-consumer sales, we will rely on application marketplaces such as the Apple App Store and Google Play to drive downloads of our mobile app. Apple and Google, both of which sell products that compete with ours, may choose to use their marketplaces to promote their competing products over our products or may make access to our mobile app more difficult. Any of these situations could adversely impact our business and results of operations.

Competition with our technology partners could harm our business and operating results.

We are dependent on a number of technology partners for the development of our products, some of which have developed or may develop and sell products that compete with our products. These technology partners may cease doing business with us or disable the technology they provide our products for a variety of reasons, including to promote their products over our own. For example, we are currently manufacturing and developing voice-enabled speaker systems that are enhanced with the technology of our partners, including those who sell competing products. We introduced One, Beam, Move, Arc, and Roam, which feature built in voice-enabled speakers powered by Amazon’s Alexa or Google’s Google Assistant technology. One or more of our partners could disable their integration, terminate or not renew their distribution agreement with us, or begin charging us for their integration with our voice-enabled products. For example, our current agreement with Amazon allows Amazon to disable the Alexa integration in our voice-enabled products with limited notice. We cannot assure you that we will be successful

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in establishing partnerships with other companies that have developed voice-control enablement technology or in developing such technology on our own.

If one or more of our technology partners do not maintain their integration with our products or seek to charge us for this integration, or if we have not developed alternative partnerships for similar technology or developed such technology on our own, our sales may decline, our reputation may be harmed and our business and operating results may suffer.

Competition with our content partners could cause these partners to cease to allow their content to be streamed on our products, which could lower product demand.

Demand for our products depends in large part on the availability of streaming third-party content that appeals to our existing and prospective customers. Compatibility with streaming music services, podcast platforms and other content provided by our content partners is a key feature of our products. To date, all our arrangements have been entered into on a royalty-free basis. Some of these content partners compete with us already, and others may in the future produce and sell speakers along with their streaming services. Additionally, other content partners may form stronger alliances with our competitors in the home audio market. Any of our content partners may cease to allow their content to be streamed on our products for a variety of reasons, including as a result of our offering competing services, to promote other partnerships or their products over our products, or to seek to charge us for this streaming. If this were to happen, demand for our products could decrease, our costs could increase and our operating results could be harmed.

Operational Risks

We are dependent on a limited number of contract manufacturers to manufacture our products and our efforts to diversify manufacturers may not be successful.

We depend on a limited number of contract manufacturers to manufacture our products, with our key manufacturer, Inventec Appliances Corporation (“Inventec”), manufacturing a majority of our products. We have also historically manufactured our products in China and in early fiscal 2020 began to diversify our supply chain through the addition of contract manufacturing in Malaysia. Our reliance on a limited number of contract manufacturers increases the risk that, in the event that any or all of such manufacturers experience an interruption in their operations, fail to perform their obligation in a timely manner or terminate agreements with us, we would not be able to maintain our production capacity without incurring material additional costs and substantial delays or we may be fully prevented from selling our products. Any material disruption in our relationship with our manufacturers would harm our ability to compete effectively and satisfy demand for our products and could adversely impact our revenue, gross margin and operating results.

In addition, there is no guarantee that our efforts to diversify manufacturers will be successful. Identifying and onboarding a new manufacturer takes a significant amount of time and resources. If we do not successfully coordinate the timely manufacturing and distribution of our products by such manufacturers, if such manufacturers are unable to successfully and timely process our orders or if we do not receive timely and accurate information from such manufacturers, we may have an insufficient supply of products to meet customer demand, we may lose sales, we may experience a build-up in inventory, we may incur additional costs, and our financial performance and reporting may be adversely affected. By adding manufacturers in other countries, we may experience increased transportation costs, fuel costs, labor unrest, impact of natural disasters and other adverse effects on our ability, timing and cost of delivering products, which may increase our inventory, decrease our margins, adversely affect our relationships with distributors and other customers and otherwise adversely affect our operating results and financial condition. In addition, any partial or full government-mandated shutdown resulting from COVID-19 has delayed and may further delay our efforts to diversify our supply chain or may cause supply chain disruptions notwithstanding any supply chain diversification efforts.

We depend on a limited number of third-party components suppliers and logistics providers.

We are dependent on a limited number of suppliers for various key components used in our products, and we may from time to time have sole source suppliers. The cost, quality and availability of these components are essential to the successful production and sale of our products. We are subject to the risk of industry-wide shortages,

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price fluctuations and long lead times in the supply of these components and other materials, which risk may be increased by the impact of COVID-19. If the supply of these components were to be delayed or constrained, or if one or more of our main suppliers were to go out of business, alternative sources or suppliers may not be available on acceptable terms or at all. In the event that any of our suppliers were to discontinue production of our key product components, developing alternate sources of supply for these components would be time consuming, difficult and costly. In the event we are unable to obtain components in sufficient quantities on a timely basis and on commercially reasonable terms, our ability to sell our products in order to meet market demand would be affected and could materially and adversely affect our brand, image, business prospects and operating results.

We also use a small number of logistics providers for substantially all our product delivery to both distributors and retailers. If one of these providers were to experience financial difficulties or disruptions in its business, or be subject to closures or other disruptions as a result of COVID-19, our own operations could be adversely affected. Because substantially all of our products are distributed from and into a small number of locations and by a small number of companies, we are susceptible to both isolated and system-wide interruptions caused by events out of our control, including COVID-19 shutdowns. Any disruption to the operations of our distribution facilities could delay product delivery, harm our reputation among our customers and adversely affect our operating results and financial condition.

During the fourth quarter of fiscal 2020 and the first and second quarters of fiscal 2021, we saw certain constraints on the ability of our component suppliers and logistics providers to timely meet commitments in an environment of increased demand for consumer electronics products during the COVID-19 pandemic, including significant limits on component supplies, and port congestion, which has, and may continue to, adversely impact our ability to meet our product demand, result in additional costs, or may otherwise adversely impact our business and results of operations. These challenges have also further delayed our efforts to fully diversify our supply chain into Malaysia until fiscal 2022, which we expect to impact us as long as the global supply chain continues to experience these challenges.

We have limited control over the third-party suppliers and logistics providers on which our business depends. If any of these parties fails to perform its obligations to us, we may be unable to deliver our products to customers in a timely manner. Further, we do not have long-term contracts with all of these parties, and there can be no assurance that we will be able to renew our contracts with them on favorable terms or at all. We may be unable to replace an existing supplier or logistics provider or supplement a provider in the event we experience significantly increased demand. Accordingly, a loss or interruption in the service of any key party could adversely impact our revenue, gross margin and operating results.

We sell our products through a limited number of key channel partners, and the loss of any such channel partner would adversely impact our business.

We are dependent on our channel partners for a vast majority of our product sales. Best Buy, one of our key channel partners, accounted for 12% of our revenue in fiscal 2020. We compete with other consumer products for placement and promotion of our products in the stores of our channel partners, including in some cases products of our channel partners. Our contracts with our channel partners allow them to exercise significant discretion in the placement and promotion of our products, and such contracts do not contain any long-term volume commitments. If one or several of our channel partners do not effectively market and sell our products, discontinue or reduce the inventory of our products, increase the promotions of or choose to promote competing products over ours, the volume of our products sold to customers could decrease, and our business and results of operations would therefore be significantly harmed. As a result of the COVID-19 pandemic, many of our key channel partners have temporarily closed or reduced operations in their retail stores during fiscal 2020 and the first and second quarters of fiscal 2021 and may continue to do so in the future, which has had, and may continue to have, a material effect on our business and results of operations.

Revenue from our channel partners also depends on a number of factors outside our control and may vary from period to period. One or more of our channel partners may experience serious financial difficulty, particularly in light of store closures due to the COVID-19 pandemic, may consolidate with other channel partners or may have limited or ceased operations. Our business and results of operations have been, and may continue to be, significantly harmed by retail store closures by many of our key channel partners. Loss of a key channel partner would require us to identify alternative channel partners or increase our reliance on our direct-to-consumer channel, which may be time-consuming and expensive or we may be unsuccessful in our efforts to do so.

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We have and may in the future continue to discontinue support for older versions of our products, resulting in customer dissatisfaction that could negatively affect our business and operating results.

We have historically maintained, and we believe our customers may expect, extensive backward compatibility for our older products and the software that supports them, allowing older products to continue to benefit from new software updates. We expect that as we continue to improve and enhance our software platform, this backward compatibility will no longer be practical or cost-effective, and we may decrease or discontinue service for our older products. We previously announced that certain legacy products will continue to work but will no longer receive software updates (other than bug fixes and patches) beginning in May 2020. To the extent we no longer provide extensive backward capability for our products, we may damage our relationship with our existing customers, as well as our reputation, brand loyalty and ability to attract new customers.

For these reasons, any decision to decrease or discontinue backward capability may decrease sales, generate legal claims and adversely affect our business, operating results and financial condition.

Product quality issues and a higher-than-expected number of warranty claims or returns could harm our business and operating results.

The products that we sell could contain defects in design or manufacture. Defects could also occur in the products or components that are supplied to us. There can be no assurance we will be able to detect and remedy all defects in the hardware and software we sell, which could result in product recalls, product redesign efforts, loss of revenue, reputational damage and significant warranty and other remediation expenses. Similar to other consumer electronics, our products have a risk of overheating and fire in the course of usage or upon malfunction. Any such defect could result in harm to property or in personal injury. If we determine that a product does not meet product quality standards or may contain a defect, the launch of such product could be delayed until we remedy the quality issue or defect. The costs associated with any protracted delay necessary to remedy a quality issue or defect in a new product could be substantial.

We generally provide a one-year warranty on all our products, except in the European Union ("EU") and select other countries where we provide a two-year warranty on all our products. The occurrence of any material defects in our products could expose us to liability for warranty claims in excess of our current reserves, and we could incur significant costs to correct any defects, warranty claims or other problems. In addition, our failure to comply with past, present and future laws regulating extended warranties and accidental damage coverage could result in reduced sales of our products, reputational damage, penalties and other sanctions, which could harm our business and financial condition.

Our international operations are subject to increased business and economic risks that could impact our financial results.

We have operations outside the United States, and we expect to continue to expand our international presence, especially in Asia. In fiscal 2020, 47.4% of our revenue was generated outside the United States. This subjects us to a variety of risks inherent in doing business internationally, including:

•fluctuations in currency exchange rates and costs of imposing currency exchange controls;

•political, social and/or economic instability, including related to the ongoing COVID-19 pandemic and the United Kingdom's withdrawal from the EU, commonly known as "Brexit";

•tariffs, trade barriers and duties;

•protectionist laws and business practices that favor local businesses in some countries;

•higher levels of credit risk and payment fraud and longer payment cycles associated with, and increased difficulty of payment collections from certain international customers;

•burdens and risks of complying with a number and variety of foreign laws and regulations, including the Foreign Corrupt Practices Act;

•laws and regulations may change from time to time unexpectedly and may be unpredictably enforced;

•potential negative consequences from changes in or interpretations of U.S. and foreign tax laws;

•the cost of developing connected products for countries where Wi-Fi technology has been passed over in favor of more advanced cellular data networks;

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•reduced protection for intellectual property rights in some countries;

•difficulties and associated costs in managing multiple international locations; and

•delays from customs brokers or government agencies.

If we are unable to manage the complexity of our global operations successfully, or if the risks above become substantial for us, our financial performance and operating results could suffer. Further, any measures that we may implement to reduce risks of our international operations may not be effective, may increase our expenses and may require significant management time and effort. Entry into new international markets requires considerable management time and financial resources related to market, personnel and facilities development before any significant revenue is generated. As a result, initial operations in a new market may operate at low margins or may be unprofitable.

We have significant operations in China, where many of the risks listed above are particularly acute. China experiences high turnover of direct labor due to the intensely competitive and fluid market for labor, and if our labor turnover rates are higher than we expect, or we otherwise fail to adequately manage our labor needs, then our business and results of operations could be adversely affected.

We will need to improve our financial and operational systems to manage our growth effectively and support our increasingly complex business arrangements, and an inability to do so could harm our business and results of operations.

To manage our growth and our increasingly complex business operations, especially as we move into new markets internationally, we will need to upgrade our operational and financial systems and procedures, which requires management time and may result in significant additional expense. In particular, beginning in fiscal 2020 and through our first and second quarters of fiscal 2021, we are undergoing activities to replace our legacy enterprise resource management system in order to accommodate our expanding operations. We cannot be certain that we will institute, in a timely or efficient manner or at all, the improvements to our managerial, operational and financial systems and procedures necessary to support our anticipated increased levels of operations. Delays or problems associated with any improvement or expansion of our operational and financial systems could adversely affect our relationships with our suppliers, manufacturers, resellers and customers, inhibit our ability to expand or take advantage of market opportunities, cause harm to our reputation and result in errors in our financial and other reporting, any of which could harm our business and operating results.

A significant disruption in our websites, servers or information technology systems, or those of our third-party partners, could impair our customers’ listening experience or otherwise adversely affect our customers, damage our reputation or harm our business.

As a consumer electronics company, our website and mobile app are important presentations of our business, identity and brand and an important means of interacting with, and providing information to, consumers of our products. We depend on our servers and centralized information technology systems, and those of third parties, for product functionality, to manage operations and to store critical information and intellectual property. Accordingly, we allocate significant resources to maintaining our information technology systems and deploying network security, data encryption, training and other measures to protect against unauthorized access or misuse. Nevertheless, our website and information technology systems, and those of the third parties we rely on, are susceptible to damage, viruses, disruptions or shutdowns due to foreseeable and unforeseeable events. System failures and disruptions could impede the manufacturing and shipping of products, functionality of our products, transactions processing and financial reporting, and result in the loss of intellectual property or data, require substantial repair costs and damage our reputation, competitive position, financial condition and results of operations.

For example, we use Amazon Web Services (“AWS”) to maintain the interconnectivity of our mobile app to our servers and those of the streaming services that our customers access to enjoy our products. Because AWS runs its own platform that we access, we are vulnerable to both system-wide and Sonos-specific service outages at AWS. Our access to AWS’ infrastructure could be limited by a number of potential causes, including technical failures, natural disasters, fraud or security attacks that we cannot predict or prevent.

Additionally, our products may contain flaws that make them susceptible to unauthorized access or use. For example, we previously discovered a vulnerability in our products that could be exploited when a customer visited a website with malicious content, allowing the customer’s local network to be accessed by third parties who could

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then gain unauthorized access to the customer’s playlists and other data and limited control of the customer’s devices. While we devote significant resources to address and eliminate flaws and other vulnerabilities in our products, there can be no assurance that our products will not be compromised in the future. Any such flaws or vulnerabilities, whether actual or merely potential, could harm our reputation, competitive position, financial condition and results of operations.

Any cybersecurity breaches or our actual or perceived failure to comply with such legal obligations by us, or by our third-party service providers or partners, could harm our business.

We collect, store, process and use our customers’ personally identifiable information and other data, and we rely on third parties that are not directly under our control to do so as well. While we take measures intended to protect the security, integrity and confidentiality of the personal information and other sensitive information we collect, store or transmit, we cannot guarantee that inadvertent or unauthorized use or disclosure will not occur, or that third parties will not, gain unauthorized access to this information. There have been a number of recent reported incidents where third parties have used software to access the personal data of their partners’ customers for marketing and other purposes.

If we or our third-party service providers were to experience a breach, disruption or failure of systems compromising our customers’ data, or if one of our third-party service providers or partners were to access our customers’ personal data without our authorization, our brand and reputation could be adversely affected, use of our products could decrease and we could be exposed to a risk of loss, litigation and regulatory proceedings. In addition, a breach could require expending significant additional resources related to the security of information systems and disrupt our operations.

The use of data by our business and our business associates is highly regulated in all our operating countries. Privacy and information-security laws and regulations change, and compliance with them may result in cost increases due to, among other things, systems changes and the development of new processes. If we or those with whom we share information fail to comply with laws and regulations, such as the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA), our reputation could be damaged, possibly resulting in lost business, and we could be subjected to additional legal risk or financial losses as a result of non-compliance. Complying with such laws may also require us to modify our data processing practices and policies and incur substantial expenditures.

Changes in how network operators manage data that travels across their networks or in net neutrality rules could harm our business.

We rely upon the ability of consumers to access our service through the internet. If network operators block, restrict or otherwise impair access to our service over their networks, our service and business could be negatively affected. To the extent that network operators implement usage-based pricing, including meaningful bandwidth caps, or otherwise try to monetize access to their networks by data providers, we could incur greater operating expenses. Furthermore, to the extent network operators create tiers of internet access service and either charge us for or prohibit us from being available through these tiers, our business could be negatively impacted.

Further, in the past, internet service providers (“ISPs”) have attempted to implement usage-based pricing, bandwidth caps and traffic shaping or throttling. To the extent network operators create tiers of internet access service and charge our customers in direct relation to their consumption of audio content, our ability to attract and retain customers could be impaired, which would harm our business. Net neutrality rules, which were designed to ensure that all online content is treated the same by ISPs and other companies that provide broadband services, were repealed by the Federal Communications Commission ("FCC") effective June 2018. Although the FCC has preempted state jurisdiction on net neutrality, some states have taken executive action directed at reinstating aspects of the FCC’s 2015 order. Further, while many countries, including across the EU, have implemented net neutrality rules, in others, the laws may be nascent or non-existent. The absence or repeal of the net neutrality rules could force us to incur greater operating expenses, cause our streaming partners to seek to shift costs to us or result in a decrease in the streaming-based usage of our platform by our customers, any of which would harm our results of operations. In addition, given uncertainty around these rules, including changing interpretations, amendments or repeal, coupled with potentially significant political and economic power of local network operators, we could experience discriminatory or anti-competitive practices that could impede our growth, cause us to incur additional expense or otherwise negatively affect our business.

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Our use of open source software could negatively affect our ability to sell our products and subject us to possible litigation.

We incorporate open source software into our products, and we may continue to incorporate open source software into our products in the future. Open source software is generally licensed by its authors or other third parties under open source licenses. Some of these licenses contain requirements that we make available source code for modifications or derivative works we create based upon the open source software and that we license such modifications or derivative works under the terms of a particular open source license or other license granting third parties certain rights of further use. Additionally, if a third-party software provider has incorporated open source software into software that we license from such provider, we could be required to disclose any of our source code that incorporates or is a modification of our licensed software. If an author or other third party that distributes open source software that we use or license were to allege that we had not complied with the conditions of the applicable license, we could be required to incur significant legal expenses defending against those allegations and could be subject to significant damages, enjoined from offering or selling our products that contained the open source software and required to comply with the above conditions. Any of the foregoing could disrupt and harm our business and financial condition.

Legal and Regulatory Risks

Changes in international trade policies, including the imposition of tariffs. have had, and may continue to have, an adverse effect on our business, financial condition and results of operations.

The U.S. government has imposed significant new tariffs on China related to the importation of certain product categories, including under the August 2019 Section 301 Tariff Action (List 4A) ("Section 301 tariffs"), which Section 301 tariffs have increased our cost of revenue and adversely impacted our results of operations. The Section 301 tariffs were imposed on our products effective September 2019 and were imposed at a rate of 15% which was reduced to a rate of 7.5% effective February 2020 as part of a “Phase One” agreement between the U.S. and China on trade matters. On May 13, 2020, we were granted a temporary exclusion from the Section 301 tariffs for our components products and, on July 23, 2020, we were granted a temporary exclusion from the Section 301 tariffs for our core speaker products. These exclusions eliminated the Section 301 tariffs on our core speaker and component products until August 31, 2020 and entitled us to an estimated refund of approximately $30 million in Section 301 tariffs we have paid since September 2019. On August 28, 2020, the U.S. Trade Representative granted an extension through December 31, 2020 of the exclusion for our core products. The exclusion for our component products was not extended past August 31, 2020, with the Section 301 tariffs for our component products automatically reinstating on September 1, 2020. The exclusion for our core products was not extended past December 31, 2020, with the Section 301 tariffs for our core products automatically reinstating on January 1, 2021.

In the event that future tariffs are imposed on imports of our products, we do not successfully obtain the refund to which we are currently entitled, we are not successful in any future exemption extension requests, the amounts of existing tariffs are increased, we experience prolonged COVID-19 shutdowns in Malaysia, our supply chain diversification efforts are further delayed or China or other countries take retaliatory trade measures in response to existing or future tariffs, our business may be impacted and we may be required to raise prices or make changes to our operations, any of which could materially harm our revenue or operating results. In response to the Section 301 tariffs (among other factors), in early fiscal 2020 we began to diversify our supply chain through the addition of contract manufacturing in Malaysia. In response to future new tariffs, we may further shift production outside of China, resulting in significant costs and disruption to our operations as we would need to pursue the time-consuming processes of recreating new supply chains, identifying substitute components and establishing new manufacturing locations.

We must comply with extensive regulatory requirements, and the cost of such compliance, and any failure to comply, may adversely affect our business, financial condition and results of operations.

In our current business and as we expand into new markets and product categories, we must comply with a wide variety of laws, regulations, standards and other requirements governing, among other things, electrical safety, wireless emissions, health and safety, e-commerce, consumer protection, export and import requirements, hazardous materials usage, product-related energy consumption, packaging, recycling and environmental matters. Compliance with these laws, regulations, standards and other requirements may be onerous and expensive, and they may be inconsistent from jurisdiction to jurisdiction or change from time to time, further increasing the cost of compliance

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and doing business. Our products may require regulatory approvals or satisfaction of other regulatory concerns in the various jurisdictions in which they are manufactured, sold or both. These requirements create procurement and design challenges that require us to incur additional costs identifying suppliers and manufacturers who can obtain and produce compliant materials, parts and products. Failure to comply with such requirements can subject us to liability, additional costs and reputational harm and, in extreme cases, force us to recall products or prevent us from selling our products in certain jurisdictions.

We may incur costs in complying with changing tax laws in the United States and abroad, which could adversely impact our cash flow, financial condition and results of operations.

We are a U.S.-based company subject to taxes in multiple U.S. and foreign tax jurisdictions. Our profits, cash flow and effective tax rate could be adversely affected by changes in the tax rules and regulations in the jurisdictions in which we do business, unanticipated changes in statutory tax rates and changes to our global mix of earnings. As we expand our operations, any changes in the U.S. or foreign taxation of such operations may increase our worldwide effective tax rate.

We are also subject to examination by the Internal Revenue Service ("IRS") and other tax authorities, including state revenue agencies and foreign governments. If any tax authority disagrees with any position we have taken, our tax liabilities and operating results may be adversely affected. While we regularly assess the likelihood of favorable or unfavorable outcomes resulting from examinations by the IRS and other tax authorities to determine the adequacy of our provision for income taxes, there can be no assurance that the actual outcome resulting from these examinations will not materially adversely affect our financial condition and results of operations. In addition, the distribution of our products subjects us to numerous complex and often-changing customs regulations. Failure to comply with these systems and regulations could result in the assessment of additional taxes, duties, interest and penalties. There is no assurance that tax and customs authorities agree with our reporting positions and upon audit may assess us additional taxes, duties, interest and penalties. If this occurs and we cannot successfully defend our position, our profitability will be reduced.

Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.

As of October 3, 2020, we had gross U.S. federal net operating loss carryforwards of $30.8 million, which expire beginning in 2035, and gross state net operating loss carryforwards of $26.9 million, which expire beginning in 2027, as well as $52.2 million in foreign net operating loss carryforwards, of which $37.6 million have an indefinite life and $14.6 million will expire in 2027. As of October 3, 2020, we also had U.S. federal research and development tax credit carryforwards of $41.8 million, and state research and development tax credit carryforwards of $31.8 million, which will expire beginning in 2025 and 2024, respectively. Because of the change of ownership provisions of Sections 382 and 383 of the Code, use of a portion of the Company's domestic net operating losses and tax credit carryforwards may be limited in future periods depending upon future changes in ownership. Further, a portion of the carryforwards may expire before being applied to reduce future income tax liabilities if sufficient taxable income is not generated in future periods.

Risks Related to Ownership of Our Common Stock

The stock price of our common stock has been and may continue to be volatile or may decline regardless of our operating performance.

The stock price of our common stock has been and may continue to be volatile. Since shares of our common stock were sold in our IPO in August 2018 at a price of $15.00 per share, the closing price of our common stock has ranged from $6.97 to $43.09 through April 3, 2021. The stock price of our common stock may fluctuate significantly in response to numerous factors in addition to the ones described in the preceding Risk Factors, many of which are beyond our control, including:

•overall performance of the equity markets and the economy as a whole;

•changes in the financial projections we or third parties may provide to the public or our failure to meet these projections;

•actual or anticipated changes in our growth rate relative to that of our competitors;

•announcements of new products, or of acquisitions, strategic partnerships, joint ventures or capital-raising activities or commitments, by us or by our competitors;

49

•additions or departures of key personnel;

•failure of securities analysts to initiate or maintain coverage of us, changes in financial estimates by any securities analysts who follow our company or our failure to meet these estimates or the expectations of investors;

•rumors and market speculation involving us or other companies in our industry;

•sales of shares of our common stock by us or our stockholders particularly sales by our directors, executive officers and significant stockholders, or the perception that these sales could occur; and

•additional stock issuances that result in significant dilution to shareholders.

In addition, the stock market with respect to newly public companies, particularly companies in the technology industry, has experienced significant price and volume fluctuations that have affected and continue to affect the stock prices of these companies. In the past, stockholders have instituted securities class action litigation following periods of market volatility. If we were to become involved in securities litigation, it could subject us to substantial costs, divert resources and the attention of management from our business and adversely affect our business.

We do not intend to pay dividends for the foreseeable future.

We have never declared or paid any cash dividends on our common stock, and we do not intend to pay any cash dividends in the foreseeable future. We anticipate that we will retain all our future earnings for use in the development of our business and for general corporate purposes. Any determination to pay dividends in the future will be at the discretion of the Board. Accordingly, investors must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize any future gains on their investments. In addition, the terms of our credit facilities contain restrictions on our ability to declare and pay cash dividends on our capital stock.

Certain provisions in our corporate charter documents and under Delaware law may prevent or hinder attempts by our stockholders to change our management or to acquire a controlling interest in us.

There are provisions in our restated certificate of incorporation and restated bylaws that may make it difficult for a third party to acquire, or attempt to acquire, control of our company, even if a change in control were considered favorable by our stockholders. These anti-takeover provisions include:

•a classified Board so that not all members of the Board are elected at one time;

•the ability of the Board to determine the number of directors and fill any vacancies and newly created directorships;

•a requirement that our directors may only be removed for cause;

•a prohibition on cumulative voting for directors;

•the requirement of a super-majority to amend some provisions in our restated certificate of incorporation and restated bylaws;

•authorization of the issuance of “blank check” preferred stock that the Board could use to implement a stockholder rights plan;

•an inability of our stockholders to call special meetings of stockholders; and

•a prohibition on stockholder actions by written consent, thereby requiring that all stockholder actions be taken at a meeting of our stockholders.

In addition, our restated certificate of incorporation provides that the Delaware Court of Chancery is the exclusive forum for any derivative action or proceeding brought on our behalf; any action asserting a breach of fiduciary duty; any action asserting a claim against us arising pursuant to the Delaware General Corporation Law (the “DGCL”), our restated certificate of incorporation or our restated bylaws; or any action asserting a claim against us that is governed by the internal affairs doctrine. Our restated certificate of incorporation also provides that the federal district courts of the United States will be the exclusive forum for resolving any complaint asserting a cause of action arising under the Securities Act of 1933, as amended.

Further, Section 203 of the DGCL may discourage, delay or prevent a change in control of our company. Section 203 imposes certain restrictions on mergers, business combinations, and other transactions between us and holders of 15% or more of our common stock.

50

General Risk Factors

The loss of one or more of our key personnel, or our failure to attract, assimilate and retain other highly qualified personnel in the future, could harm our business.

We depend on the continued services and performance of our key personnel. The loss of key personnel, including key members of management as well as our product development, marketing, sales and technology personnel, could disrupt our operations and have an adverse effect on our ability to grow our business. In addition, the loss of key personnel in our finance and accounting departments could harm our internal controls, financial reporting capability and capacity to forecast and plan for future growth. Further, the market for highly skilled workers and leaders in our industry is extremely competitive. If we do not succeed in attracting, hiring and integrating high-quality personnel or in retaining and motivating existing personnel, we may be unable to grow effectively, and our financial condition may be harmed.

Natural disasters, geopolitical unrest, war, terrorism, pandemics, public health issues or other catastrophic events could disrupt the supply, delivery or demand of products, which could negatively affect our operations and performance.

We are subject to the risk of disruption by earthquakes, floods and other natural disasters, fire, power shortages, geopolitical unrest, war, terrorist attacks and other hostile acts, public health issues, epidemics or pandemics, including COVID-19, and other events beyond our control and the control of the third parties on which we depend. Any of these catastrophic events, whether in the United States or abroad, may have a strong negative impact on the global economy, us, our contract manufacturers, our suppliers or customers, and could decrease demand for our products, create delays and inefficiencies in our supply chain and make it difficult or impossible for us to deliver products to our customers. Further, our headquarters are located in Santa Barbara, California, in a seismically active region that is also prone to forest fires. Any catastrophic event that occurred near our headquarters, or near our manufacturing facilities in China or Malaysia, could impose significant damage to our ability to conduct our business and could require substantial recovery time, which could have an adverse effect on our business, operating results and financial condition.

We may need additional capital, and we cannot be certain that additional financing will be available.

Our operations have been financed primarily through cash flow from operating activities, borrowings under our J.P. Morgan Chase Bank, N.A. Secured Term Loan (the "Term Loan"), which was repaid in the second quarter of fiscal 2021, and the Secured Credit Facility with J.P. Morgan Chase Bank, N.A. (the "Credit Facility") and net proceeds from the sale of our equity securities. We may require additional equity or debt financing to fund our operations and capital expenditures. Our ability to obtain financing will depend, among other things, on our development efforts, business plans, operating performance and the condition of the capital markets at the time we seek financing. We cannot assure you that additional financing will be available to us on favorable terms if and when required, or at all.

We may acquire other businesses or receive offers to be acquired, which could require significant management attention, disrupt our business, dilute stockholder value and adversely affect our operating results.

As part of our business strategy, we have and may in the future make investments in complementary businesses, products, services or technologies. These acquisitions and other transactions and arrangements involve significant challenges and risks, including not advancing our business strategy, receiving an unsatisfactory return on our investment, difficulty integrating and retaining new employees, business systems, and technology, or distracting management from our other business initiatives. If an arrangement fails to adequately anticipate changing circumstances and interests of a party, it may result in early termination or renegotiation of the arrangement. The success of these transactions and arrangements will depend in part on our ability to leverage them to enhance our existing products or develop compelling new ones. It may take longer than expected to realize the full benefits from these transactions and arrangements such as increased revenue or enhanced efficiencies, or the benefits may ultimately be smaller than we expected. These events could adversely affect our consolidated financial statements.

If we fail to maintain an effective system of internal controls in the future, we may experience a loss of investor confidence and an adverse impact to our stock price.

51

Pursuant to the Sarbanes-Oxley Act of 2002, we are required to document and test our internal control procedures and to provide a report by management on internal control over financial reporting, including management’s assessment of the effectiveness of such control. We previously reported and remediated material weaknesses in internal control over financial reporting. Completion of remediation does not provide assurance that our remediation or other controls will continue to operate properly. If we are unable to maintain effective internal control over financial reporting or disclosure controls and procedures, our ability to record, process and report financial information accurately, and to prepare consolidated financial statements within required time periods could be adversely affected, which could subject us to litigation or investigations requiring management resources and payment of legal and other expenses, negatively affect investor confidence in our consolidated financial statements and adversely impact our stock price.

52

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

    Recent Sales of Unregistered Securities

None.    

    Issuer Purchases of Equity Securities

The following table presents information with respect to our repurchase of common stock during the quarter ended April 3, 2021.

Period	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs
Jan 3 - Jan 30	—	$	—	—	$	50,000
Jan 31 - Feb 27	4,432	$	34.89	4,432	$	49,845
Feb 28 - Apr 3	15,115	$	34.85	15,115	$	49,318
Total	19,547			19,547

(1)In November 2020, the Board of Directors authorized a common stock repurchase program of up to $50.0 million. See Note 9. Stockholders’ Equity for further information. The Company withholds shares of common stock from certain employees in connection with the vesting of restricted stock unit awards issued to such employees to satisfy applicable tax withholding requirements. Although these withheld shares are not issued or considered common stock repurchases under our stock repurchase program and therefore are not included in the preceding table, they are treated as common stock repurchases in our financial statements as they reduce the number of shares that would have been issued upon vesting.

53

Item 6. Exhibit Index

Exhibit number	Exhibit title	Incorporated by reference				Filed or furnished herewith
		Form	File no.	Exhibit	Filing date
31.1	Certification of Chief Executive Officer pursuant to Rules 13a-14(a) and Rule 15d-14(a) of the Exchange Act					X
31.2	Certification of Chief Financial Officer pursuant to Rules 13a-14(a) and Rule 15d-14(a) of the Exchange Act					X
32.1*	Certification of Chief Executive Officer pursuant to Rule 13a-14(b) of the Exchange Act and 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002					X
32.2*	Certification of Chief Financial Officer pursuant to Rule 13a-14(b) of the Exchange Act and 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002					X
101	The following financial statements from the Company's Quarterly Report on Form 10-Q for the quarter ended April 3, 2021, formatted in Inline XBRL: (i) Condensed consolidated balance sheets, (ii) Condensed consolidated statements of operations and comprehensive income, (iv) Condensed consolidated statements of stockholders' equity, (v) Condensed consolidated statements of cash flows and (vi) Notes to condensed consolidated financial statements, tagged as blocks of text and including detailed tags					X
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)					X

*The certifications furnished in Exhibits 32.1 and 32.2 hereto are deemed to accompany this Form 10-Q and are not deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section, nor shall they be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act.

54

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Quarterly Report on Form 10-Q to be signed on its behalf by the undersigned thereunto duly authorized.

		Sonos, Inc.
Date: May 12, 2021	By:	/s/ Patrick Spence
		Patrick Spence
		Chief Executive Officer and Director
		(Principal Executive Officer)
Date: May 12, 2021	By:	/s/ Brittany Bagley
		Brittany Bagley
		Chief Financial Officer
		(Principal Financial Officer and Principal Accounting Officer)

55

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Patrick Spence, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Sonos, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 12, 2021	/s/ Patrick Spence
	Patrick Spence
	Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Brittany Bagley, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Sonos, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.    All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 12, 2021	/s/ Brittany Bagley
	Brittany Bagley
	Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Patrick Spence, Chief Executive Officer of Sonos, Inc. (the “Company”), hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge, this Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended April 3, 2021 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.  

Date: May 12, 2021	By:	/s/ Patrick Spence
		Patrick Spence
		Chief Executive Officer (Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Brittany Bagley, Chief Financial Officer of Sonos, Inc. (the “Company”), hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge, this Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended April 3, 2021 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that the information contained in such Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.  

Date: May 12, 2021	By:	/s/ Brittany Bagley
		Brittany Bagley
		Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

XML

Cover Page - shares	6 Months Ended
	Apr. 03, 2021	May 01, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 03, 2021
Current Fiscal Year End Date	--04-03
Document Transition Report	false
Entity File Number	001-38603
Entity Registrant Name	SONOS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	03-0479476
Entity Address, Address Line One	614 Chapala Street
Entity Address, City or Town	Santa Barbara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	93101
City Area Code	805
Local Phone Number	965-3001
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	SONO
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		124,597,844
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001314727

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 03, 2021	Oct. 03, 2020
Current assets:
Cash and cash equivalents	$ 638,927	$ 407,100
Restricted cash	192	191
Accounts receivable, net of allowances	69,690	54,935
Inventories	139,581	180,830
Prepaids and other current assets	31,763	17,321
Total current assets	880,153	660,377
Property and equipment, net	65,509	60,784
Operating lease right-of-use assets	39,061	42,342
Goodwill	15,545	15,545
Intangible assets, net	25,434	26,394
Deferred tax assets	1,984	1,800
Other noncurrent assets	20,600	8,809
Total assets	1,048,286	816,051
Current liabilities:
Accounts payable	203,585	250,328
Accrued expenses	61,659	45,049
Accrued compensation	46,665	44,517
Short-term debt	0	6,667
Deferred revenue, current	18,392	15,304
Other current liabilities	40,770	31,150
Total current liabilities	371,071	393,015
Operating lease liabilities, noncurrent	39,361	50,360
Long-term debt	0	18,251
Deferred revenue, noncurrent	52,497	47,085
Deferred tax liabilities	2,394	2,434
Other noncurrent liabilities	3,695	7,067
Total liabilities	469,018	518,212
Commitments and contingencies (Note 7)
Stockholders’ equity:
Common stock, $0.001 par value	126	114
Treasury stock	(26,023)	(20,886)
Additional paid-in capital	684,988	548,993
Accumulated deficit	(78,979)	(228,492)
Accumulated other comprehensive loss	(844)	(1,890)
Total stockholders’ equity	579,268	297,839
Total liabilities and stockholders’ equity	$ 1,048,286	$ 816,051

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Apr. 03, 2021	Oct. 03, 2020
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Income Statement [Abstract]
Revenue	$ 332,949	$ 175,098	$ 978,532	$ 737,181
Cost of revenue	167,173	102,089	513,331	436,552
Gross profit	165,776	73,009	465,201	300,629
Operating expenses
Research and development	56,370	49,593	108,717	102,120
Sales and marketing	57,205	50,504	131,658	127,928
General and administrative	39,806	26,119	75,047	56,327
Total operating expenses	153,381	126,216	315,422	286,375
Operating income (loss)	12,395	(53,207)	149,779	14,254
Other income (expense), net
Interest income	44	874	80	1,873
Interest expense	(182)	(374)	(448)	(827)
Other income (expense), net	(1,578)	(1,423)	2,680	3,001
Total other income (expense), net	(1,716)	(923)	2,312	4,047
Income (loss) before provision for (benefit from) income taxes	10,679	(54,130)	152,091	18,301
Provision for (benefit from) income taxes	(6,542)	(1,810)	2,578	(153)
Net income (loss)	17,221	(52,320)	149,513	18,454
Net income (loss) attributable to common stockholders:
Basic	17,221	(52,320)	149,513	18,454
Diluted	$ 17,221	$ (52,320)	$ 149,513	$ 18,454
Basic (in USD per share)	$ 0.14	$ (0.48)	$ 1.26	$ 0.17
Diluted (in USD per share)	$ 0.12	$ (0.48)	$ 1.09	$ 0.16
Weighted-average shares used in computing net loss per share attributable to common stockholders:
Basic (in shares)	121,880,615	109,515,049	118,745,569	109,249,866
Diluted (in shares)	143,055,546	109,515,049	136,849,846	117,819,569
Total comprehensive income (loss)
Net income	$ 17,221	$ (52,320)	$ 149,513	$ 18,454
Change in foreign currency translation adjustment	199	(431)	1,046	(950)
Comprehensive income (loss)	$ 17,420	$ (52,751)	$ 150,559	$ 17,504

XML

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Loss
Balance, beginning of period (in shares) at Sep. 28, 2019		109,623,417		1,020,775
Balance, beginning of period at Sep. 28, 2019	$ 280,928	$ 110	$ 502,757	$ (13,498)	$ (208,377)	$ (64)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans (in shares)		1,561,696
Issuance of common stock pursuant to equity incentive plans	7,969	$ 1	7,968
Purchase of common stock (in shares)				(227,241)
Repurchase of common stock	(2,926)			$ (2,926)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs") (in shares)				(144,908)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs")	(2,152)			$ (2,152)
Stock-based compensation expense	13,204		13,204
Net income (loss)	70,775				70,775
Change in foreign currency translation adjustment	(519)					(519)
Balance, end of period (in shares) at Dec. 28, 2019		111,185,113		1,392,924
Balance, ending of period at Dec. 28, 2019	367,279	$ 111	523,929	$ (18,576)	(137,602)	(583)
Balance, beginning of period (in shares) at Sep. 28, 2019		109,623,417		1,020,775
Balance, beginning of period at Sep. 28, 2019	280,928	$ 110	502,757	$ (13,498)	(208,377)	(64)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	18,454
Change in foreign currency translation adjustment	(950)
Balance, end of period (in shares) at Mar. 28, 2020		112,733,727		3,884,652
Balance, ending of period at Mar. 28, 2020	299,804	$ 113	541,937	$ (51,310)	(189,922)	(1,014)
Balance, beginning of period (in shares) at Dec. 28, 2019		111,185,113		1,392,924
Balance, beginning of period at Dec. 28, 2019	367,279	$ 111	523,929	$ (18,576)	(137,602)	(583)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans (in shares)		1,548,614
Issuance of common stock pursuant to equity incentive plans	4,616	$ 2	4,614
Purchase of common stock (in shares)				(2,309,604)
Repurchase of common stock	(30,290)			$ (30,290)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs") (in shares)				(182,124)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs")	(2,444)			$ (2,444)
Stock-based compensation expense	13,394		13,394
Net income (loss)	(52,320)				(52,320)
Change in foreign currency translation adjustment	(431)					(431)
Balance, end of period (in shares) at Mar. 28, 2020		112,733,727		3,884,652
Balance, ending of period at Mar. 28, 2020	299,804	$ 113	541,937	$ (51,310)	(189,922)	(1,014)
Balance, beginning of period (in shares) at Oct. 03, 2020		113,915,233		1,571,138
Balance, beginning of period at Oct. 03, 2020	297,839	$ 114	548,993	$ (20,886)	(228,492)	(1,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans (in shares)		7,075,338
Issuance of common stock pursuant to equity incentive plans	69,505	$ 7	69,498
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs") (in shares)				(307,980)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs")	(5,118)			$ (5,118)
Stock-based compensation expense	14,844		14,844
Net income (loss)	132,292				132,292
Change in foreign currency translation adjustment	847					847
Balance, end of period (in shares) at Jan. 02, 2021		120,990,571		1,879,118
Balance, ending of period at Jan. 02, 2021	510,209	$ 121	633,335	$ (26,004)	(96,200)	(1,043)
Balance, beginning of period (in shares) at Oct. 03, 2020		113,915,233		1,571,138
Balance, beginning of period at Oct. 03, 2020	$ 297,839	$ 114	548,993	$ (20,886)	(228,492)	(1,890)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans (in shares)	10,829,628
Retirement of treasury stock (in shares)	1,017,308
Purchase of common stock (in shares)	(19,547)
Net income (loss)	$ 149,513
Change in foreign currency translation adjustment	1,046
Balance, end of period (in shares) at Apr. 03, 2021		125,716,622		1,268,563
Balance, ending of period at Apr. 03, 2021	579,268	$ 126	684,988	$ (26,023)	(78,979)	(844)
Balance, beginning of period (in shares) at Jan. 02, 2021		120,990,571		1,879,118
Balance, beginning of period at Jan. 02, 2021	510,209	$ 121	633,335	$ (26,004)	(96,200)	(1,043)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans (in shares)		5,743,359
Issuance of common stock pursuant to equity incentive plans	49,661	$ 6	49,655
Retirement of treasury stock (in shares)		1,017,308		1,017,308
Retirement of treasury stock	0	$ (1)	(14,365)	$ 14,366
Purchase of common stock (in shares)				(19,547)
Repurchase of common stock	(682)			$ (682)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs") (in shares)				(387,206)
Repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock unit awards ("RSUs")	(13,703)			$ (13,703)
Stock-based compensation expense	16,363		16,363
Net income (loss)	17,221				17,221
Change in foreign currency translation adjustment	199					199
Balance, end of period (in shares) at Apr. 03, 2021		125,716,622		1,268,563
Balance, ending of period at Apr. 03, 2021	$ 579,268	$ 126	$ 684,988	$ (26,023)	$ (78,979)	$ (844)

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Cash flows from operating activities
Net income	$ 149,513	$ 18,454
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	16,725	18,831
Stock-based compensation expense	31,207	26,598
Other	344	2,989
Deferred income taxes	(146)	74
Foreign currency transaction gain	(1,047)	(420)
Changes in operating assets and liabilities:
Accounts receivable, net	(13,260)	63,344
Inventories	39,631	106,245
Other assets	(21,982)	(9,690)
Accounts payable and accrued expenses	(36,485)	(191,070)
Accrued compensation	2,087	(14,443)
Deferred revenue	8,374	3,729
Other liabilities	992	10,727
Net cash provided by operating activities	175,953	35,368
Cash flows from investing activities
Purchases of property and equipment, intangible and other assets	(19,927)	(25,800)
Cash paid for acquisition, net of acquired cash	0	(36,289)
Net cash used in investing activities	(19,927)	(62,089)
Cash flows from financing activities
Repayments of borrowings	(25,000)	(3,333)
Payments for repurchase of common stock	(682)	(33,216)
Proceeds from exercise of common stock options	119,166	12,585
Payments for repurchase of common stock related to shares withheld for tax in connection with vesting of restricted stock units	(18,821)	(4,596)
Net cash provided by (used in) financing activities	74,663	(28,560)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1,139	(107)
Net increase (decrease) in cash, cash equivalents and restricted cash	231,828	(55,388)
Cash, cash equivalents and restricted cash
Beginning of period	407,291	338,820
End of period	639,119	283,432
Supplemental disclosure
Cash paid for interest	357	851
Cash paid for taxes, net of refunds	3,255	1,025
Cash paid for amounts included in the measurement of lease liabilities	11,683	7,346
Supplemental disclosure of non-cash investing and financing activities
Purchases of property and equipment in accounts payable and accrued expenses	8,910	3,270
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 1,622	$ 75,642

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Business Overview and Basis of Presentation

6 Months Ended

Apr. 03, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Business Overview and Basis of Presentation

Business Overview and Basis of Presentation

Description of business

Sonos, Inc. and its wholly owned subsidiaries (collectively, “Sonos,” the “Company,” “we,” “us” or “our”) designs, develops, manufactures, and sells audio products and services. The Sonos sound system provides customers with an immersive listening experience created by the design of its speakers and components, a proprietary software platform, and the ability to stream content from a variety of sources over the customer’s wireless network or over Bluetooth.

The Company’s products are sold through third-party physical retailers, including custom installers of home audio systems, select e-commerce retailers, and its website sonos.com. The Company’s products are distributed in over 50 countries through its wholly owned subsidiaries: Sonos Europe B.V. in the Netherlands, Beijing Sonos Technology Co. Ltd. in China, Sonos Japan GK in Japan, and Sonos Australia Pty Ltd. in Australia.

Basis of presentation and preparation

The accompanying condensed consolidated financial statements are unaudited. The condensed consolidated balance sheet as of October 3, 2020 has been derived from the audited consolidated financial statements of the Company.

The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all the information and footnotes required by U.S. GAAP for annual financial statements. They should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended October 3, 2020 (the “Annual Report”), filed with the SEC on November 23, 2020.

In management’s opinion, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of only normal recurring adjustments, necessary for the fair statement of the Company’s financial position, its results of operations, and its cash flows for the interim periods presented. The results of operations for the three and six months ended April 3, 2021 are not necessarily indicative of the results to be expected for the full fiscal year or any other period.

The Company operates on a 52- week or 53- week fiscal year ending on the Saturday nearest September 30 each year. The Company’s fiscal year is divided into four quarters of 13 weeks, each beginning on a Sunday and containing two 4-week periods followed by a 5-week period. An additional week is included in the fourth fiscal quarter approximately every five years to realign fiscal quarters with calendar quarters. This last occurred in the fourth quarter of the Company’s fiscal year ended October 3, 2020 and will reoccur in the fiscal year ending October 3, 2026. The six months ended April 3, 2021 and March 28, 2020 spanned 26 weeks each. As used in this Quarterly Report on Form 10-Q, “fiscal 2021” refers to the fiscal year ending October 2, 2021 and “fiscal 2020” refers to the fiscal year ended October 3, 2020.

Use of estimates and judgments

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and judgments that affect the amounts reported and disclosed in the condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. On an ongoing basis, the Company evaluates its estimates and judgments compared to historical experience and expected trends.

In March 2020, the outbreak of the novel coronavirus (COVID-19) was declared a pandemic. While the nature of the situation is dynamic, the Company has considered the impact when developing its estimates and assumptions noted above. Actual results and outcomes may differ from management's estimates and assumptions.

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Summary of Significant Accounting Policies

6 Months Ended

Apr. 03, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

There have been no changes in the Company’s significant accounting policies, recently adopted accounting pronouncements or recent accounting pronouncements pending adoption from those disclosed in the Annual Report, except as noted below.

Recently adopted accounting pronouncements

In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments, and it subsequently issued amendments to the initial guidance (collectively referred to as "Topic 326"), which provide a new impairment model that requires measurement and recognition of expected credit losses for most financial assets and certain other instruments, including accounts receivable. The Company adopted this standard effective October 4, 2020, using a modified retrospective approach. Under the new standard, the allowance for credit losses is based on the Company's assessment of collectibility of accounts, including consideration of the age of invoices, each customer's expected ability to pay and collection history, customer-specific information and current economic conditions that may impact a customer's ability to pay. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In November 2018, the FASB issued ASU No. 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606. This standard resolves the diversity in practice concerning whether certain transactions between collaborative arrangement participants should be accounted for as revenue under Accounting Standards Codification 606, Revenue from Contracts with Customers ("Topic 606"). This standard specifies when a participant is a customer in a collaboration, adds guidance for unit of account to align with Topic 606 and provides presentation guidance for collaborative arrangements. The Company adopted this standard in the first quarter of fiscal 2021. The adoption did not have a material impact on the Company's consolidated financial statements.

Recent accounting pronouncements pending adoption

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This standard simplifies the accounting for income taxes by removing certain exceptions to the general principles in Accounting Standards Codification Topic 740 ("ASC 740") as well as by improving consistent application of the topic by clarifying and amending existing guidance. This standard is effective for the Company in the first quarter of fiscal 2022, with early adoption permitted. The Company is currently evaluating the timing of adoption and impact on the Company's consolidated financial statements.

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Fair Value Measurements

6 Months Ended

Apr. 03, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

The carrying values of the Company’s financial instruments, including accounts receivable and accounts payable, approximate their fair values due to the short period of time to maturity or repayment.

The following table summarizes fair value measurements by level for the assets measured at fair value on a recurring basis as of April 3, 2021 and October 3, 2020:

	April 3, 2021
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (cash equivalents)	$	472,425	$	—	$	—	$	472,425

	October 3, 2020
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (cash equivalents)	$	281,380	$	—	$	—	$	281,380

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Revenue and Geographic Information

6 Months Ended

Apr. 03, 2021

Revenue from Contract with Customer [Abstract]

Revenue and Geographic Information

Revenue and Geographic Information

Disaggregation of revenue

Revenue by geographical region also includes the applicable service revenue for software upgrades and cloud-based services attributable to each region and is based on ship-to address, as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Americas	$	193,938	$	101,964	$	561,177	$	405,158
Europe, Middle East and Africa (“EMEA”)	114,306		57,252		354,313		269,990
Asia Pacific (“APAC”)	24,705		15,882		63,042		62,033
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

Revenue is attributed to individual countries based on ship-to address and also includes the applicable service revenue for software upgrades and cloud-based services attributable to each country. Revenue by significant countries is as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
United States	$	178,019	$	94,755	$	508,915	$	372,028
Other countries	154,930		80,343		469,617		365,153
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

Revenue by product category also includes the applicable service revenue for software upgrades and cloud-based services attributable to each product category. Revenue by major product category is as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Sonos speakers	$	267,534	$	116,367	$	795,050	$	583,044
Sonos system products	52,062		47,202		149,820		108,723
Partner products and other revenue	13,353		11,529		33,662		45,414
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

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Balance Sheet Components

6 Months Ended

Apr. 03, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Balance Sheet Components

Balance Sheet Components

Accounts receivable, net of allowances

Accounts receivable, net of allowances, consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Accounts receivable	$	91,737	$	73,757
Allowance for credit losses	(1,435)		(1,307)
Allowance for sales incentives	(20,612)		(17,515)
Accounts receivable, net of allowances	$	69,690	$	54,935

Inventories

Inventories consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Finished goods	$	131,541	$	172,184
Component parts	8,040		8,646
Inventories	$	139,581	$	180,830

The Company writes down inventory as a result of excess and obsolete inventories, or when it believes that the net realizable value of inventories is less than the carrying value.

Intangible assets

The following table reflects the changes in the net carrying amount of the components of intangible assets associated with the Company's acquisition activity:

	April 3, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value		Weighted-Average Remaining Life
(In thousands, except weighted-average remaining life)
Technology	$	7,789	$	(2,468)	$	5,321	3.10
Other	39		(26)		13		0.67
Total finite-lived intangible assets	7,828		(2,494)		5,334		3.09
In-process research and development and other intangible assets not subject to amortization	20,100		—		20,100
Total intangible assets	$	27,928	$	(2,494)	$	25,434

The following table summarizes estimated future amortization expense of the Company's intangible assets as of April 3, 2021:

Fiscal years ending	Future Amortization Expense
(In thousands)
Remainder of fiscal 2021	$	971
2022	1,927
2023	1,246
2024	1,020
2025	170
2026 and thereafter	—
Total future amortization expense	$	5,334

Accrued expenses

Accrued expenses consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Accrued advertising and marketing	$	9,999	$	10,609
Accrued taxes	9,294		6,252
Accrued inventory	7,864		2,843
Accrued manufacturing, logistics and product development	12,366		9,753
Accrued general and administrative expenses	16,555		10,068
Other accrued payables	5,581		5,524
Total accrued expenses	$	61,659	$	45,049

Deferred revenue

Amounts invoiced in advance of revenue recognition are recorded as deferred revenue on the condensed consolidated balance sheets. Deferred revenue primarily relates to revenue allocated to unspecified software upgrades and cloud-based services.

The following table presents the changes in the Company’s deferred revenue for the six months ended April 3, 2021 and March 28, 2020:

	April 3, 2021		March 28, 2020
(In thousands)
Deferred revenue, beginning of period	$	62,389	$	56,449
Recognition of revenue included in beginning of period deferred revenue	(7,883)		(6,904)
Revenue deferred, net of revenue recognized on contracts in the respective period	16,383		10,798
Deferred revenue, end of period	$	70,889	$	60,343

The Company expects the following recognition of deferred revenue as of April 3, 2021:

	For the fiscal years ending
	2021		2022		2023		2024		2025 and Beyond		Total
(In thousands)
Deferred revenue expected to be recognized	$	10,473	$	15,360	$	13,432	$	11,382	$	20,242	$	70,889

Other current liabilities

Other current liabilities consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Reserve for returns	$	20,572	$	14,195
Short-term operating lease liabilities	10,718		10,910
Product warranty liability	4,856		3,628
Other	4,624		2,417
Total other current liabilities	$	40,770	$	31,150

The following table presents the changes in the Company’s warranty liability for the six months ended April 3, 2021 and March 28, 2020:

	April 3, 2021		March 28, 2020
(In thousands)
Warranty liability, beginning of period	$	3,628	$	3,254
Provision for warranties issued during the period	8,844		7,098
Settlements of warranty claims during the period	(7,616)		(6,608)
Warranty liability, end of period	$	4,856	$	3,744

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Debt

6 Months Ended

Apr. 03, 2021

Debt Disclosure [Abstract]

Debt

Debt

The Company's debt obligation consists of the Secured Credit Facility with J.P. Morgan Chase Bank, N.A. (the “Credit Facility”). In January 2021, the Company repaid all of its outstanding principal balance of $24.9 million under the J.P. Morgan Chase Bank, N.A. Secured Term Loan (the "Term Loan") which had an original maturity date of October 2021. As of April 3, 2021, the Company did not have any remaining short- or long-term debt obligations, and as of October 3, 2020 the Company’s short- and long-term debt obligations were as follows:

	October 3, 2020
	Rate	Balance
(In thousands, except percentages)
Term loan (1)	2.4 %	$	25,000
Unamortized debt issuance costs (2)		(82)
Total indebtedness		24,918
Less short-term portion		(6,667)
Long-term debt		$	18,251

(1)Original maturity date of October 2021 and bore interest at a variable rate equal to an adjusted LIBOR plus 2.25%, payable quarterly.

(2)Debt issuance costs were recorded as a debt discount and recorded as interest expense over the term of the agreement.

The Credit Facility allows the Company to borrow up to $80.0 million, restricted to the value of the borrowing base, which is based on the value of inventory and accounts receivable and is subject to quarterly redetermination. The Credit Facility matures in October 2021 and may be drawn as Commercial Bank Floating Rate Loans (at the higher of prime rate or adjusted LIBOR plus 2.50%) or Eurocurrency Loans (at LIBOR plus an applicable margin). As of both April 3, 2021 and October 3, 2020, the Company did not have any outstanding borrowings and had $2.9 million and $0.5 million, respectively, in undrawn letters of credit that reduce the availability under the Credit Facility.

Debt obligations under the Credit Facility require the Company to maintain a consolidated fixed charge ratio of at least 1.0, restrict distribution of dividends unless certain conditions are met, such as having a fixed charge ratio of at least 1.15, and require financial statement reporting and delivery of borrowing base certificates. As of April 3, 2021 and October 3, 2020, the Company was in compliance with all financial covenants. The Credit Facility is collateralized by eligible inventory and accounts receivable of the Company, as well as the Company's intellectual property including patents and trademarks.

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Commitments and Contingencies

6 Months Ended

Apr. 03, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Legal proceedings

From time to time, the Company is involved in legal proceedings in the ordinary course of business, including claims relating to employee relations, business practices and patent infringement. Litigation can be expensive and disruptive to normal business operations. Moreover, the results of complex legal proceedings are difficult to predict, and the Company’s view of these matters may change in the future as the litigation and events related thereto unfold. The Company expenses legal fees as incurred. The Company records a provision for contingent losses when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. An unfavorable outcome to any legal matter, if material, could have an adverse effect on the Company’s operations or its financial position, liquidity or results of operations.

On January 7, 2020, the Company filed a complaint with the U.S. International Trade Commission ("ITC") against Alphabet Inc. ("Alphabet") and Google LLC ("Google") and a lawsuit in the U.S. District Court for the Central District of California against Google. The complaint and lawsuit each allege infringement of certain Sonos patents related to its smart speakers and related technology. On February 6, 2020, the ITC initiated a formal investigation into the Company’s claims. Google and Alphabet filed an initial answer in the ITC action on February 27, 2020 and an amended answer on April 3, 2020, denying infringement and alleging that the asserted patents are invalid. The ITC case went to trial at the end of February 2021, and we expect an initial determination from the administrative law judge in the ITC case on or about August 13, 2021, which date was extended from the original date of May 11, 2021 as a result of COVID-related scheduling issues and workload increases pursuant to an order from the Chief Administrative Law Judge in May 2021. On March 4, 2020, the California District Court stayed the district court proceeding pending resolution of the ITC investigation. On March 11, 2020, Google filed an answer in the California District Court, denying infringement and alleging that the asserted patents are invalid. On September 28, 2020, Google filed for a declaratory judgement of non-infringement in the U.S. District Court for the Northern District of California related to five different Sonos patents. On September 29, 2020, the Company filed a lawsuit against Google in the U.S. District Court for Western District of Texas, alleging infringement of those five Sonos patents and seeking monetary damages and other non-monetary relief. On December 1, 2020, the Company filed a lawsuit against Google Germany GmbH and Google Ireland Ltd. in the regional court of Hamburg, Germany, alleging infringement of a Sonos patent related to control of playback of media by mobile and playback devices and seeking non-monetary relief. The Hamburg Court issued a judgment on February 25, 2021 declining to issue a preliminary injunction against Google Germany GmbH, although such court did issue a preliminary injunction against Google Ireland Ltd. in April 2021. See Note 14 "Subsequent Event" for more details.

On June 11, 2020, Google filed a lawsuit in the U.S. District Court for the Northern District of California against the Company, alleging infringement of five Google patents generally related to noise cancellation, digital rights management, media search and wireless relays and seeking monetary damages and other non-monetary relief. On November 2, 2020, the California District Court granted Sonos’ motion and dismissed Google’s allegation of infringement of one of such five Google patents, a patent generally related to media search, finding that the invention at issue is patent ineligible. On June 12, 2020, Google filed lawsuits in District Court Munich I against Sonos Europe B.V. and Sonos, Inc., alleging infringement of two Google patents generally related to digital rights management and search notifications, and seeking monetary damages and an injunction preventing sales of any infringing Sonos products. On January 14, 2021, Google amended its infringement complaint related to the search notifications patent to relate to a limited version of the claims, in view of prior art cited by the Company. On March 3, 2021, the District Court Munich stayed a case for infringement of the search notifications patent pending the outcome of a nullity action based on doubt as to the validity of the patent. On August 21, 2020, Google filed a lawsuit against Sonos, Inc. in Canada, alleging infringement of one Google patent generally related to noise cancellation technology. On August 21, 2020, Google filed a lawsuit against Sonos Europe B.V. and Sonos, Inc. in France, alleging infringement of two Google patents generally related to digital rights management and search notifications, and seeking monetary damages and an injunction preventing sales of any infringing Sonos products. On February 8, 2021, Google withdrew its infringement allegations regarding the search notifications patent in view of prior art brought to the attention of the court by the Company. In August 2020, Google filed a lawsuit against Sonos Europe B.V. and Sonos, Inc. in the Netherlands alleging infringement of a Google patent related to search notifications, and seeking monetary damages and an injunction preventing sales of any infringing Sonos products. In September 2020, Google filed a lawsuit against Sonos Europe B.V. in the

Netherlands, alleging infringement of a Google patent related to digital rights management, and seeking monetary damages and enforcement of an injunction preventing sales of any infringing Sonos products, which was transferred to the Midden-Netherlands court on March 22, 2021 following the grant of the Company's challenge to improper jurisdiction. A range of loss, if any, associated with these matters is not probable or reasonably estimable as of April 3, 2021 and October 3, 2020.

On March 10, 2017, Implicit, LLC (“Implicit”) filed a patent infringement action in the United States District Court, District of Delaware against the Company. Implicit is asserting that the Company infringed on two patents in this case. The Company denies the allegations. There is no assurance of a favorable outcome and the Company’s business could be adversely affected as a result of a finding that the Company patents-in-suit are invalid and/or unenforceable. A range of loss, if any, associated with this matter is not probable or reasonably estimable as of April 3, 2021 and October 3, 2020.

The Company is involved in certain other litigation matters not listed above but does not consider these matters to be material either individually or in the aggregate at this time. The Company’s view of the matters not listed may change in the future as the litigation and events related thereto unfold.

On May 13, 2020, the Company was granted a temporary exclusion from the August 2019 Section 301 Tariff Action (List 4A) ("Section 301 tariffs") for its component products. On July 23, 2020, the Company was granted a temporary exclusion from Section 301 tariffs for its core speaker products. These exclusions eliminated the tariffs on the Company's component and core speaker products imported from China until August 31, 2020 and entitled the Company to a refund for the tariffs paid since September 2019, the date the Section 301 tariffs were imposed. On August 28, 2020, the United States Trade Representative granted an extension through December 31, 2020 of the exclusion for the Company’s core products, with the Section 301 tariffs for our core products automatically reinstating on January 1, 2021. The exclusion for the Company’s component products was not extended past August 31, 2020, with the Section 301 tariffs for our component products automatically reinstating on September 1, 2020. Tariff refund claims are subject to review and approval by U.S. Customs and Border Protection. As of April 3, 2021, the Company recognized $6.2 million in refunds based upon acceptance of the Company's refund request, recognized as a reduction to cost of revenue, and the outstanding refund receivable was approximately $1.1 million which is recorded in other current assets on the condensed consolidated balance sheets. As of April 3, 2021, the remaining outstanding tariff refund the Company expects to recover was approximately $27.5 million. The Company did not record these potential refunds due to uncertainty of the timing of acceptance of approval and will be recognized as a reduction to cost of revenue if and when acceptance occurs.

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Stockholders' Equity

6 Months Ended

Apr. 03, 2021

Equity [Abstract]

Stockholders' Equity

Stockholders' Equity

Share repurchase program

On November 17, 2020, the Board of Directors authorized a common stock repurchase program of up to $50.0 million. During the six months ended April 3, 2021, the Company repurchased 19,547 shares for an aggregate purchase price of $0.7 million at an average price of $34.86 per share under the repurchase program. The Company had $49.3 million available for share repurchases under the repurchase program as of April 3, 2021.     

Treasury stock during the six months ended April 3, 2021 included shares withheld to satisfy employees' tax withholding requirements in connection with vesting of RSUs. Additionally, during the six months ended April 3, 2021 the Company retired 1,017,308 shares of treasury stock. The Company accounts for the retirement of treasury stock by deducting its par value from common stock and reflecting any excess of cost over par value as a deduction from additional paid-in-capital on the condensed consolidated balance sheets.

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Stock-based Compensation

6 Months Ended

Apr. 03, 2021

Share-based Payment Arrangement [Abstract]

Stock-based Compensation

Stock-based Compensation

2018 Equity Incentive Plan

In July 2018, the Board adopted the 2018 Equity Incentive Plan (the “2018 Plan”). The 2018 Plan became effective in connection with the Company's initial public offering ("IPO"). The number of shares reserved for issuance under the 2018 Plan increase automatically on January 1 of each year beginning in 2019 and continuing through 2028 by a number of shares of common stock equal to the lesser of (x) 5% of the total outstanding shares

of the Company’s common stock and common stock equivalents as of the immediately preceding December 31 (rounded to the nearest whole share) and (y) a number of shares determined by the Company's board of directors (the "Board").

Stock options

Pursuant to the 2018 Plan, the Company issues stock options to employees and directors. The fair value of the stock options is based on the Company’s closing stock price on the trading day immediately prior to the date of grant. The option price, number of shares, and grant date are determined at the discretion of the Board. For so long as the option holder performs services for the Company, the options generally vest over 48 months, on a monthly or quarterly basis, with certain options subject to an initial annual cliff vest, and are exercisable for a period not to exceed ten years from the date of grant.

The summary of the Company’s stock option activity is as follows:

	Number of Options	Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
				(In years)	(In thousands)
Outstanding at October 3, 2020	28,422,940	$	12.03	5.6	$	99,053
Granted	—	—
Exercised	(10,829,628)	11.01
Forfeited	(403,681)	14.30
Outstanding at April 3, 2021	17,189,631	$	12.62	5.5	$	452,794
At April 3, 2021
Options exercisable	14,465,856	$	12.25	5.1	$	386,395
Options vested and expected to vest	16,893,229	$	12.59	5.5	$	445,523

As of April 3, 2021 and October 3, 2020, the Company had $10.5 million and $16.9 million, respectively, of unrecognized stock-based compensation expense related to stock options, which is expected to be recognized over a weighted-average period of 1.2 and 1.5 years, respectively.

Restricted stock units

Pursuant to the 2018 Plan, the Company issues RSUs to employees and directors. The fair value of RSUs is based on the Company's closing stock price on the trading day immediately preceding the date of grant. RSUs typically have an initial annual cliff vest, and then vest quarterly over the service period, which is generally four years. The summary of the Company’s RSU activity is as follows:

	Number of Units	Weighted-Average Grant Date Fair Value		Aggregate Intrinsic Value
				(In thousands)
Outstanding at October 3, 2020	11,647,951	$	10.50	$	180,543
Granted	2,613,732
Released	(1,989,069)
Forfeited	(607,864)
Outstanding at April 3, 2021	11,664,750	$	11.87	$	454,459

As of April 3, 2021 and October 3, 2020, the Company had $105.1 million and $92.4 million of unrecognized stock-based compensation expense related to RSUs, which is expected to be recognized over a weighted-average period of 2.8 and 3.0 years, respectively.

Performance stock units ("PSU")

Pursuant to the 2018 Plan, the Company has issued and may issue certain PSUs that vest on the satisfaction of service and performance conditions. The Company estimates the fair value of PSUs on the grant date and recognizes compensation expense in the period it becomes probable that performance conditions will be achieved. On a quarterly basis, the Company re-evaluates the assumption of the probability that performance conditions will be satisfied and revises its estimates as appropriate as new or updated information becomes available. The summary of the Company’s PSU activity is as follows:

	Number of Units	Weighted-Average Grant Date Fair Value		Aggregate Intrinsic Value
				(In thousands)
Outstanding at October 3, 2020	—	$	—	$	—
Granted	158,521
Vested	—
Forfeited	—
Outstanding at April 3, 2021	158,521	$	22.81	$	6,176

As of April 3, 2021, the Company had $4.3 million of unrecognized stock-based compensation expense related to PSUs, which is expected to be recognized over a weighted-average period of 1.7 years.

    Stock-based compensation

Total stock-based compensation expense by functional category was as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Cost of revenue	$	261	$	278	$	474	$	561
Research and development	6,683		5,427		12,942		10,543
Sales and marketing	3,632		3,407		7,040		6,948
General and administrative	5,787		4,282		10,751		8,546
Total stock-based compensation expense	$	16,363	$	13,394	$	31,207	$	26,598

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Income Taxes

6 Months Ended

Apr. 03, 2021

Income Tax Disclosure [Abstract]

Income Taxes

Income TaxesThe Company’s tax provision and the resulting effective tax rate for interim periods is determined based upon its estimated annual effective tax rate ("AETR"), adjusted for the effect of discrete items arising in that quarter. The impact of such inclusions could result in a higher or lower effective tax rate during a quarter, based upon the mix and timing of actual earnings or losses versus annual projections. In each quarter, the Company updates its estimate of the AETR, and if the estimated AETR changes, a cumulative adjustment is made in that quarter. For the three and six months ended March 28, 2020, the Company excluded certain jurisdictions from the calculation of the estimated AETR as the Company anticipated an ordinary loss in these jurisdictions for which no tax benefit could be recognized.

The Company recorded benefit from incomes taxes of $6.5 million and of $1.8 million for the three months ended April 3, 2021 and March 28, 2020, respectively, related to U.S. and non-U.S. income taxes. The Company recorded a provision for incomes taxes of $2.6 million and benefit from income taxes of $0.2 million for the six months ended April 3, 2021 and March 28, 2020, respectively. For the three and six months ended April 3, 2021 the Company's tax provision includes a discrete benefit for U.S. share based compensation. For the six months ended March 28, 2020, the Company's tax provision includes a discrete income tax benefit resulting from a favorable release of uncertain tax positions in the U.S. coinciding with the issuance of the Base Erosion and Anti-Abuse Tax (“BEAT”) Regulations.

For the six months ended April 3, 2021, the Company maintained a full valuation allowance on its deferred tax assets in the U.S. and the Netherlands due to its history of operating losses. It is possible that within the next 12 months there may be sufficient positive evidence to release a portion or all of the valuation allowance. Release of the valuation allowance in the U.S. and the Netherlands would result in a benefit to income tax expense for the period the release is recorded, which could have a material impact on net earnings. The timing and amount of the potential valuation allowance release are subject to significant management judgment, as well as prospective earnings in the U.S. and the Netherlands.

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Net Income (Loss) Per Share Attributable to Common Stockholders

6 Months Ended

Apr. 03, 2021

Earnings Per Share [Abstract]

Net Income (Loss) Per Share Attributable to Common Stockholders

Net Income (Loss) Per Share Attributable to Common Stockholders

Basic net income (loss) attributable to common stockholders per share is calculated by dividing net income (loss) attributable to common stockholders by the weighted-average number of shares of common stock outstanding less shares subject to repurchase. Diluted net income (loss) per share attributable to common stockholders adjusts the basic net income (loss) per share attributable to common stockholders and the weighted-average number of shares of common stock outstanding for the potentially dilutive impact of stock awards, using the treasury stock method.

The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share attributable to common stockholders:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands, except share and per share data)
Numerator:
Net income (loss) attributable to common stockholders - basic and diluted	$	17,221	$	(52,320)	$	149,513	$	18,454
Denominator:
Weighted-average shares of common stock—basic	121,880,615		109,515,049		118,745,569		109,249,866
Effect of potentially dilutive stock options	12,040,149		—		10,073,032		6,185,155
Effect of RSUs	9,105,551		—		8,016,629		2,384,548
Effect of PSUs	29,231		—		14,616		—
Weighted-average shares of common stock—diluted	143,055,546		109,515,049		136,849,846		117,819,569
Net income (loss) per share attributable to common stockholders:
Basic	$	0.14	$	(0.48)	$	1.26	$	0.17
Diluted	$	0.12	$	(0.48)	$	1.09	$	0.16

The following potentially dilutive shares were excluded from the computation of diluted net income (loss) per share attributable to common stockholders because including them would have been antidilutive:

	Three Months Ended		Six Months Ended
	April 3, 2021	March 28, 2020	April 3, 2021	March 28, 2020
Stock options to purchase common stock	7,523,579	34,840,568	12,299,023	29,425,147
Restricted stock units	3,219,598	7,081,150	4,354,744	4,635,242
Performance stock units	44,217	—	22,109	—
Total	10,787,394	41,921,718	16,675,876	34,060,389

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Restructuring Plan

6 Months Ended

Apr. 03, 2021

Restructuring and Related Activities [Abstract]

Restructuring Plan

Restructuring Plan

On June 23, 2020, the Company initiated a restructuring plan as part of its efforts to reduce operating expenses and preserve liquidity due to the uncertainty and challenges stemming from the COVID-19 pandemic (the "2020 restructuring plan"). As part of the 2020 restructuring plan, the Company eliminated approximately 12% of its global headcount and closed its New York retail store and six satellite offices in order to better align resources to provide further operating flexibility and more efficiently position the business for its long-term strategy. Activities under the 2020 restructuring plan were substantially completed in the first quarter of fiscal 2021.

Total pre-tax restructuring and related costs under the 2020 restructuring plan were $26.4 million, which was incurred in fiscal 2020. For the assets deemed to be impaired as part of the 2020 restructuring, the Company estimated fair value using an income-approach based on management’s forecast of future cash flows expected to be derived from the property. In the first quarter of fiscal 2021, the Company negotiated the early termination of a facility lease that was part of the 2020 restructuring and recorded a gain of $2.8 million, representing the difference between the related operating lease liability and previously accrued restructuring expenses versus the early termination payment. The gain was recognized as a credit in sales and marketing expenses on the condensed consolidated statements of operations and comprehensive income. The cash paid related to the settlement of the lease liability as part of the early termination is included within "Cash paid for amounts included in the measurement of lease liabilities" within the supplemental disclosure on the condensed consolidated statements of cash flows.

The remaining balance in accrued expenses and accrued compensation associated with restructuring activities is nominal as of second quarter of fiscal 2021. These costs required the Company to make certain judgments and estimates regarding the amount and timing of the 2020 restructuring plan and related impairment charges or recoveries. The estimated liability could change subsequent to its recognition as part of the 2020 restructuring plan, requiring adjustments to the expense and liability recorded. On a quarterly basis, the Company conducts an evaluation of the related liabilities and expenses and revises its assumptions and estimates as appropriate as new or updated information becomes available.

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Retirement plans	6 Months Ended
	Apr. 03, 2021
Retirement Benefits [Abstract]
Retirement Plans	Retirement PlansThe Company has a defined contribution 401(k) plan (the "401(k) Plan") for the Company’s U.S.-based employees, as well as various defined contribution plans for its international employees. Eligible U.S. employees may make tax-deferred contributions under the 401(k) plan, but are limited to the maximum annual dollar amount allowable under the Internal Revenue Code of 1986, as amended (the "Code"). The Company matches contributions towards the 401(k) Plan and international defined contribution plans. The Company's matching contributions totaled $1.8 million and $1.5 million for the three months ended April 3, 2021 and March 28, 2020, respectively. The Company's matching contributions totaled $3.5 million and $3.1 million for the six months ended April 3, 2021 and March 28, 2020, respectively.

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Subsequent Event	6 Months Ended
	Apr. 03, 2021
Subsequent Events [Abstract]
Subsequent Event	Subsequent EventOn April 29, 2021, the Company obtained a preliminary injunction from the Court of Hamburg that prevents Google Ireland Ltd. from making available in Germany its Cast technology, aspects of which are protected by a Sonos patent related to enabling the ability to cast and control media content from a mobile phone or tablet to one or more smart playback devices. The preliminary injunction requires Google to stop providing mobile devices, playback devices, and software which use the infringing Cast technology. Further details regarding the enforcement of the preliminary injunction will be set forth in the full judgment, which is not yet available as of the date of this filing.

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Business Overview and Basis of Presentation (Policies)

6 Months Ended

Apr. 03, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation and preparation

Basis of presentation and preparation

The accompanying condensed consolidated financial statements are unaudited. The condensed consolidated balance sheet as of October 3, 2020 has been derived from the audited consolidated financial statements of the Company.

The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all the information and footnotes required by U.S. GAAP for annual financial statements. They should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended October 3, 2020 (the “Annual Report”), filed with the SEC on November 23, 2020.

In management’s opinion, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of only normal recurring adjustments, necessary for the fair statement of the Company’s financial position, its results of operations, and its cash flows for the interim periods presented. The results of operations for the three and six months ended April 3, 2021 are not necessarily indicative of the results to be expected for the full fiscal year or any other period.

The Company operates on a 52- week or 53- week fiscal year ending on the Saturday nearest September 30 each year. The Company’s fiscal year is divided into four quarters of 13 weeks, each beginning on a Sunday and containing two 4-week periods followed by a 5-week period. An additional week is included in the fourth fiscal quarter approximately every five years to realign fiscal quarters with calendar quarters. This last occurred in the fourth quarter of the Company’s fiscal year ended October 3, 2020 and will reoccur in the fiscal year ending October 3, 2026. The six months ended April 3, 2021 and March 28, 2020 spanned 26 weeks each. As used in this Quarterly Report on Form 10-Q, “fiscal 2021” refers to the fiscal year ending October 2, 2021 and “fiscal 2020” refers to the fiscal year ended October 3, 2020.

Use of estimates and judgment

Use of estimates and judgments

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and judgments that affect the amounts reported and disclosed in the condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. On an ongoing basis, the Company evaluates its estimates and judgments compared to historical experience and expected trends.

In March 2020, the outbreak of the novel coronavirus (COVID-19) was declared a pandemic. While the nature of the situation is dynamic, the Company has considered the impact when developing its estimates and assumptions noted above. Actual results and outcomes may differ from management's estimates and assumptions.

Recently adopted accounting pronouncements and recent accounting pronouncements pending adoption

Recently adopted accounting pronouncements

In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments, and it subsequently issued amendments to the initial guidance (collectively referred to as "Topic 326"), which provide a new impairment model that requires measurement and recognition of expected credit losses for most financial assets and certain other instruments, including accounts receivable. The Company adopted this standard effective October 4, 2020, using a modified retrospective approach. Under the new standard, the allowance for credit losses is based on the Company's assessment of collectibility of accounts, including consideration of the age of invoices, each customer's expected ability to pay and collection history, customer-specific information and current economic conditions that may impact a customer's ability to pay. The adoption of this standard did not have a material impact on the Company's consolidated financial statements.

In November 2018, the FASB issued ASU No. 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606. This standard resolves the diversity in practice concerning whether certain transactions between collaborative arrangement participants should be accounted for as revenue under Accounting Standards Codification 606, Revenue from Contracts with Customers ("Topic 606"). This standard specifies when a participant is a customer in a collaboration, adds guidance for unit of account to align with Topic 606 and provides presentation guidance for collaborative arrangements. The Company adopted this standard in the first quarter of fiscal 2021. The adoption did not have a material impact on the Company's consolidated financial statements.

Recent accounting pronouncements pending adoption

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This standard simplifies the accounting for income taxes by removing certain exceptions to the general principles in Accounting Standards Codification Topic 740 ("ASC 740") as well as by improving consistent application of the topic by clarifying and amending existing guidance. This standard is effective for the Company in the first quarter of fiscal 2022, with early adoption permitted. The Company is currently evaluating the timing of adoption and impact on the Company's consolidated financial statements.

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Fair Value Measurements (Tables)

6 Months Ended

Apr. 03, 2021

Fair Value Disclosures [Abstract]

Summary of fair value measurements by level for the assets measured on a recurring basis

The following table summarizes fair value measurements by level for the assets measured at fair value on a recurring basis as of April 3, 2021 and October 3, 2020:

	April 3, 2021
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (cash equivalents)	$	472,425	$	—	$	—	$	472,425

	October 3, 2020
(In thousands)	Level 1		Level 2		Level 3		Total
Assets:
Money market funds (cash equivalents)	$	281,380	$	—	$	—	$	281,380

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Revenue and Geographic Information (Tables)

6 Months Ended

Apr. 03, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

Revenue by geographical region also includes the applicable service revenue for software upgrades and cloud-based services attributable to each region and is based on ship-to address, as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Americas	$	193,938	$	101,964	$	561,177	$	405,158
Europe, Middle East and Africa (“EMEA”)	114,306		57,252		354,313		269,990
Asia Pacific (“APAC”)	24,705		15,882		63,042		62,033
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

Revenue is attributed to individual countries based on ship-to address and also includes the applicable service revenue for software upgrades and cloud-based services attributable to each country. Revenue by significant countries is as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
United States	$	178,019	$	94,755	$	508,915	$	372,028
Other countries	154,930		80,343		469,617		365,153
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

Revenue by product category also includes the applicable service revenue for software upgrades and cloud-based services attributable to each product category. Revenue by major product category is as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Sonos speakers	$	267,534	$	116,367	$	795,050	$	583,044
Sonos system products	52,062		47,202		149,820		108,723
Partner products and other revenue	13,353		11,529		33,662		45,414
Total revenue	$	332,949	$	175,098	$	978,532	$	737,181

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Balance Sheet Components (Tables)

6 Months Ended

Apr. 03, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of accounts receivable

Accounts receivable, net of allowances, consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Accounts receivable	$	91,737	$	73,757
Allowance for credit losses	(1,435)		(1,307)
Allowance for sales incentives	(20,612)		(17,515)
Accounts receivable, net of allowances	$	69,690	$	54,935

Schedule of inventories

Inventories consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Finished goods	$	131,541	$	172,184
Component parts	8,040		8,646
Inventories	$	139,581	$	180,830

Schedule of finite-lived intangible assets, future amortization expense

The following table reflects the changes in the net carrying amount of the components of intangible assets associated with the Company's acquisition activity:

	April 3, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value		Weighted-Average Remaining Life
(In thousands, except weighted-average remaining life)
Technology	$	7,789	$	(2,468)	$	5,321	3.10
Other	39		(26)		13		0.67
Total finite-lived intangible assets	7,828		(2,494)		5,334		3.09
In-process research and development and other intangible assets not subject to amortization	20,100		—		20,100
Total intangible assets	$	27,928	$	(2,494)	$	25,434

The following table summarizes estimated future amortization expense of the Company's intangible assets as of April 3, 2021:

Fiscal years ending	Future Amortization Expense
(In thousands)
Remainder of fiscal 2021	$	971
2022	1,927
2023	1,246
2024	1,020
2025	170
2026 and thereafter	—
Total future amortization expense	$	5,334

Schedule of accrued expenses

Accrued expenses consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Accrued advertising and marketing	$	9,999	$	10,609
Accrued taxes	9,294		6,252
Accrued inventory	7,864		2,843
Accrued manufacturing, logistics and product development	12,366		9,753
Accrued general and administrative expenses	16,555		10,068
Other accrued payables	5,581		5,524
Total accrued expenses	$	61,659	$	45,049

Changes in deferred balances and expected revenue recognition

The following table presents the changes in the Company’s deferred revenue for the six months ended April 3, 2021 and March 28, 2020:

	April 3, 2021		March 28, 2020
(In thousands)
Deferred revenue, beginning of period	$	62,389	$	56,449
Recognition of revenue included in beginning of period deferred revenue	(7,883)		(6,904)
Revenue deferred, net of revenue recognized on contracts in the respective period	16,383		10,798
Deferred revenue, end of period	$	70,889	$	60,343

Remaining performance obligation

The Company expects the following recognition of deferred revenue as of April 3, 2021:

	For the fiscal years ending
	2021		2022		2023		2024		2025 and Beyond		Total
(In thousands)
Deferred revenue expected to be recognized	$	10,473	$	15,360	$	13,432	$	11,382	$	20,242	$	70,889

Schedule of other current liabilities

Other current liabilities consist of the following:

	April 3, 2021		October 3, 2020
(In thousands)
Reserve for returns	$	20,572	$	14,195
Short-term operating lease liabilities	10,718		10,910
Product warranty liability	4,856		3,628
Other	4,624		2,417
Total other current liabilities	$	40,770	$	31,150

Schedule of product warranty liability

The following table presents the changes in the Company’s warranty liability for the six months ended April 3, 2021 and March 28, 2020:

	April 3, 2021		March 28, 2020
(In thousands)
Warranty liability, beginning of period	$	3,628	$	3,254
Provision for warranties issued during the period	8,844		7,098
Settlements of warranty claims during the period	(7,616)		(6,608)
Warranty liability, end of period	$	4,856	$	3,744

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Debt (Tables)

6 Months Ended

Apr. 03, 2021

Debt Disclosure [Abstract]

Schedule of short and long term debt

As of April 3, 2021, the Company did not have any remaining short- or long-term debt obligations, and as of October 3, 2020 the Company’s short- and long-term debt obligations were as follows:

	October 3, 2020
	Rate	Balance
(In thousands, except percentages)
Term loan (1)	2.4 %	$	25,000
Unamortized debt issuance costs (2)		(82)
Total indebtedness		24,918
Less short-term portion		(6,667)
Long-term debt		$	18,251

(1)Original maturity date of October 2021 and bore interest at a variable rate equal to an adjusted LIBOR plus 2.25%, payable quarterly.

(2)Debt issuance costs were recorded as a debt discount and recorded as interest expense over the term of the agreement.

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Stock-based Compensation (Tables)

6 Months Ended

Apr. 03, 2021

Share-based Payment Arrangement [Abstract]

Schedule of stock option activity

The summary of the Company’s stock option activity is as follows:

	Number of Options	Weighted-Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
				(In years)	(In thousands)
Outstanding at October 3, 2020	28,422,940	$	12.03	5.6	$	99,053
Granted	—	—
Exercised	(10,829,628)	11.01
Forfeited	(403,681)	14.30
Outstanding at April 3, 2021	17,189,631	$	12.62	5.5	$	452,794
At April 3, 2021
Options exercisable	14,465,856	$	12.25	5.1	$	386,395
Options vested and expected to vest	16,893,229	$	12.59	5.5	$	445,523

Schedule of restricted stock unit activity

The summary of the Company’s RSU activity is as follows:

	Number of Units	Weighted-Average Grant Date Fair Value		Aggregate Intrinsic Value
				(In thousands)
Outstanding at October 3, 2020	11,647,951	$	10.50	$	180,543
Granted	2,613,732
Released	(1,989,069)
Forfeited	(607,864)
Outstanding at April 3, 2021	11,664,750	$	11.87	$	454,459

Schedule of performance stock units activity

The summary of the Company’s PSU activity is as follows:

	Number of Units	Weighted-Average Grant Date Fair Value		Aggregate Intrinsic Value
				(In thousands)
Outstanding at October 3, 2020	—	$	—	$	—
Granted	158,521
Vested	—
Forfeited	—
Outstanding at April 3, 2021	158,521	$	22.81	$	6,176

Schedule of stock-based compensation expense

Total stock-based compensation expense by functional category was as follows:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands)
Cost of revenue	$	261	$	278	$	474	$	561
Research and development	6,683		5,427		12,942		10,543
Sales and marketing	3,632		3,407		7,040		6,948
General and administrative	5,787		4,282		10,751		8,546
Total stock-based compensation expense	$	16,363	$	13,394	$	31,207	$	26,598

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Net Income (Loss) Per Share Attributable to Common Stockholders (Tables)

6 Months Ended

Apr. 03, 2021

Earnings Per Share [Abstract]

Schedule of earnings per share

The following table sets forth the computation of the Company’s basic and diluted net income (loss) per share attributable to common stockholders:

	Three Months Ended				Six Months Ended
	April 3, 2021		March 28, 2020		April 3, 2021		March 28, 2020
(In thousands, except share and per share data)
Numerator:
Net income (loss) attributable to common stockholders - basic and diluted	$	17,221	$	(52,320)	$	149,513	$	18,454
Denominator:
Weighted-average shares of common stock—basic	121,880,615		109,515,049		118,745,569		109,249,866
Effect of potentially dilutive stock options	12,040,149		—		10,073,032		6,185,155
Effect of RSUs	9,105,551		—		8,016,629		2,384,548
Effect of PSUs	29,231		—		14,616		—
Weighted-average shares of common stock—diluted	143,055,546		109,515,049		136,849,846		117,819,569
Net income (loss) per share attributable to common stockholders:
Basic	$	0.14	$	(0.48)	$	1.26	$	0.17
Diluted	$	0.12	$	(0.48)	$	1.09	$	0.16

Schedule of antidilutive securities

The following potentially dilutive shares were excluded from the computation of diluted net income (loss) per share attributable to common stockholders because including them would have been antidilutive:

	Three Months Ended		Six Months Ended
	April 3, 2021	March 28, 2020	April 3, 2021	March 28, 2020
Stock options to purchase common stock	7,523,579	34,840,568	12,299,023	29,425,147
Restricted stock units	3,219,598	7,081,150	4,354,744	4,635,242
Performance stock units	44,217	—	22,109	—
Total	10,787,394	41,921,718	16,675,876	34,060,389

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Business Overview and Basis of Presentation (Details)	Apr. 03, 2021 country
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of countries where products are distributed	50

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Fair Value Measurements (Details) - Money Market Funds - USD ($) $ in Thousands	Apr. 03, 2021	Oct. 03, 2020
Assets:
Money market funds (cash equivalents)	$ 472,425	$ 281,380
Level 1
Assets:
Money market funds (cash equivalents)	472,425	281,380
Level 2
Assets:
Money market funds (cash equivalents)	0	0
Level 3
Assets:
Money market funds (cash equivalents)	$ 0	$ 0

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Revenue and Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 332,949	$ 175,098	$ 978,532	$ 737,181
Sonos speakers
Disaggregation of Revenue [Line Items]
Revenue	267,534	116,367	795,050	583,044
Sonos system products
Disaggregation of Revenue [Line Items]
Revenue	52,062	47,202	149,820	108,723
Partner products and other revenue
Disaggregation of Revenue [Line Items]
Revenue	13,353	11,529	33,662	45,414
Americas
Disaggregation of Revenue [Line Items]
Revenue	193,938	101,964	561,177	405,158
Europe, Middle East and Africa (“EMEA”)
Disaggregation of Revenue [Line Items]
Revenue	114,306	57,252	354,313	269,990
Asia Pacific (“APAC”)
Disaggregation of Revenue [Line Items]
Revenue	24,705	15,882	63,042	62,033
United States
Disaggregation of Revenue [Line Items]
Revenue	178,019	94,755	508,915	372,028
Other countries
Disaggregation of Revenue [Line Items]
Revenue	$ 154,930	$ 80,343	$ 469,617	$ 365,153

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Balance Sheet Components - Accounts receivable, net of allowances (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Oct. 03, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts receivable	$ 91,737	$ 73,757
Allowance for credit losses	(1,435)	(1,307)
Allowance for sales incentives	(20,612)	(17,515)
Accounts receivable, net of allowances	$ 69,690	$ 54,935

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Balance Sheet Components - Inventories (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Oct. 03, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Finished goods	$ 131,541	$ 172,184
Component parts	8,040	8,646
Inventories	$ 139,581	$ 180,830

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Balance Sheet Components - Finite-lived intangible assets, future amortization expense (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2021	Oct. 03, 2020
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	$ 7,828
Accumulated amortization	(2,494)
Finite-lived intangible assets, net carrying value	5,334
Intangible assets, gross carrying amount (excluding goodwill)	27,928
Intangible assets, net carrying value (excluding goodwill)	$ 25,434	$ 26,394
Weighted-average remaining life	3 years 1 month 2 days
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of fiscal 2021	$ 971
2022	1,927
2023	1,246
2024	1,020
2025	170
2026 and thereafter	0
Finite-lived intangible assets, net carrying value	5,334
In progress research and development
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	20,100
Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	7,789
Accumulated amortization	(2,468)
Finite-lived intangible assets, net carrying value	$ 5,321
Weighted-average remaining life	3 years 1 month 6 days
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Finite-lived intangible assets, net carrying value	$ 5,321
Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount	39
Accumulated amortization	(26)
Finite-lived intangible assets, net carrying value	$ 13
Weighted-average remaining life	8 months 1 day
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Finite-lived intangible assets, net carrying value	$ 13

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Balance Sheet Components - Accrued expenses (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Oct. 03, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued advertising and marketing	$ 9,999	$ 10,609
Accrued taxes	9,294	6,252
Accrued inventory	7,864	2,843
Accrued manufacturing, logistics and product development	12,366	9,753
Accrued general and administrative expenses	16,555	10,068
Other accrued payables	5,581	5,524
Total accrued expenses	$ 61,659	$ 45,049

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Balance Sheet Components - Change in deferred revenue (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Contract with Customer, Liability [Roll Forward]
Deferred revenue, beginning of period	$ 62,389	$ 56,449
Recognition of revenue included in beginning of period deferred revenue	(7,883)	(6,904)
Revenue deferred, net of revenue recognized on contracts in the respective period	16,383	10,798
Deferred revenue, end of period	$ 70,889	$ 60,343

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Balance Sheet Components - Expected revenue recognition (Details) $ in Thousands	Apr. 03, 2021 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue expected to be recognized	$ 70,889
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-04
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue expected to be recognized	$ 10,473
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied in	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-03
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue expected to be recognized	$ 15,360
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied in	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-02
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue expected to be recognized	$ 13,432
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied in	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue expected to be recognized	$ 11,382
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied in	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-09-29
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred revenue expected to be recognized	$ 20,242
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligations expected to be satisfied in

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Balance Sheet Components - Other current liabilities (Details) - USD ($) $ in Thousands	Apr. 03, 2021	Oct. 03, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reserve for returns	$ 20,572	$ 14,195
Short-term operating lease liabilities	10,718	10,910
Product warranty liability	4,856	3,628
Other	4,624	2,417
Total other current liabilities	$ 40,770	$ 31,150

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Balance Sheet Components - Product Warranties (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty liability, beginning of period	$ 3,628	$ 3,254
Provision for warranties issued during the period	8,844	7,098
Settlements of warranty claims during the period	(7,616)	(6,608)
Warranty liability, end of period	$ 4,856	$ 3,744

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Debt - Additional Information (Details) $ in Thousands	1 Months Ended	6 Months Ended
	Jan. 31, 2021 USD ($)	Apr. 03, 2021 USD ($)	Mar. 28, 2020 USD ($)	Oct. 03, 2020 USD ($)
Debt Instrument [Line Items]
Repayments of debt		$ 25,000	$ 3,333
Fixed charge ratio, covenant one		1.0
Fixed charge ratio, covenant two		1.15
Term Loan
Debt Instrument [Line Items]
Repayments of debt	$ 24,900
Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 80,000
Credit Facility | Letter of Credit
Debt Instrument [Line Items]
Unused borrowing capacity		$ 2,900		$ 500
LIBOR | Term Loan
Debt Instrument [Line Items]
Interest rate, spread on variable rate		2.25%
LIBOR | Credit Facility
Debt Instrument [Line Items]
Interest rate, spread on variable rate		2.50%

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Debt - Schedule of debt (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 03, 2021	Oct. 03, 2020
Debt Disclosure [Abstract]
Debt, interest rate		2.40%
Debt		$ 25,000
Unamortized debt issuance costs		(82)
Total indebtedness		24,918
Less short-term portion		(6,667)
Long-term debt	$ 0	$ 18,251
LIBOR | Term Loan
Debt Instrument [Line Items]
Interest rate, spread on variable rate	2.25%

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Commitments and Contingencies (Details) $ in Millions	Nov. 02, 2020 patent	Sep. 29, 2020 patent	Aug. 21, 2020 patent	Jun. 12, 2020 patent	Jun. 11, 2020 patent	Mar. 10, 2017 patent	Apr. 03, 2021 USD ($)
Long-term Purchase Commitment [Line Items]
Tariff refund | $							$ 27.5
Other Current Assets
Long-term Purchase Commitment [Line Items]
Income taxes receivable | $							1.1
Government
Long-term Purchase Commitment [Line Items]
Income tax examination, liability (refund) | $							$ (6.2)
Sonos, Inc.
Long-term Purchase Commitment [Line Items]
Gain contingency, patents allegedly infringed upon, number		5		2
Sonos, Inc. | CANADA
Long-term Purchase Commitment [Line Items]
Gain contingency, patents allegedly infringed upon, number			1
Sonos, Inc. | Europe and France
Long-term Purchase Commitment [Line Items]
Gain contingency, patents allegedly infringed upon, number			2
Alphabet Inc. ("Alphabet") and Google LLC ("Google")
Long-term Purchase Commitment [Line Items]
Loss contingency, patents allegedly infringed upon, number					5
Loss contingency, patents found not infringed upon, number	5
Implicit, LLC
Long-term Purchase Commitment [Line Items]
Loss contingency, patents allegedly infringed upon, number						2

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Stockholders' Equity (Details) - USD ($)	6 Months Ended
	Apr. 03, 2021	Nov. 17, 2020
Equity [Abstract]
Stock repurchase program, authorized value		$ 50,000,000.0
Purchase of treasury stock (in shares)	19,547
Purchase price of common stock	$ 700,000
Average price per share (in dollars per share)	$ 34.86
Remaining authorized repurchase amount	$ 49,300,000
Retirement of treasury stock (in shares)	1,017,308

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Stock-based Compensation - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended	12 Months Ended
	Jul. 31, 2018	Apr. 03, 2021	Oct. 03, 2020
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		48 months
Unrecognized stock-based compensation expense		$ 10.5	$ 16.9
Unrecognized stock-based compensation expense, period of recognition		1 year 2 months 12 days	1 year 6 months
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense		$ 105.1	$ 92.4
Unrecognized stock-based compensation expense, period of recognition		2 years 9 months 18 days	3 years
Cliff vesting period		4 years
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense		$ 4.3
Unrecognized stock-based compensation expense, period of recognition		1 year 8 months 12 days
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding stock maximum	5.00%
2003 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable period		10 years

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Stock-based Compensation - Stock Option Activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Apr. 03, 2021 USD ($) $ / shares shares	Oct. 03, 2020 USD ($) $ / shares shares
Number of Options
Beginning balance (in shares) | shares	28,422,940
Granted (in shares) | shares	0
Exercised (in shares) | shares	(10,829,628)
Forfeited (in shares) | shares	(403,681)
Ending balance (in shares) | shares	17,189,631	28,422,940
Options exercisable (in shares) | shares	14,465,856
Options vested and expected to vest (in shares) | shares	16,893,229
Weighted-Average Exercise Price
Beginning balance (in USD per share) | $ / shares	$ 12.03
Granted (in USD per share) | $ / shares	0
Exercised (in USD per share) | $ / shares	11.01
Forfeited (in USD per share) | $ / shares	14.30
Ending balance (in USD per share) | $ / shares	12.62	$ 12.03
Option exercisable - Weighted Average Exercise Price (in USD per share) | $ / shares	12.25
Options vested and expected to vest - Weighted Average Exercise Price (in USD per share) | $ / shares	$ 12.59
Additional Information
Weighted Average Remaining Contractual Term	5 years 6 months	5 years 7 months 6 days
Option exercisable - Weighted Average Remaining Contractual Term	5 years 1 month 6 days
Options vested and expected to vest - Weighted Average Remaining Contractual Term	5 years 6 months
Aggregate Intrinsic Value | $	$ 452,794	$ 99,053
Options exercisable - Weighted Average Intrinsic Value | $	386,395
Options vested and expected to vest - Weighted Average Intrinsic Value | $	$ 445,523

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Stock-based Compensation - Restricted Stock Unit Activity (Details) - Restricted Stock Units $ / shares in Units, $ in Thousands	6 Months Ended
	Apr. 03, 2021 USD ($) $ / shares shares
Number of Units
Outstanding, beginning balance (in shares)	11,647,951
Granted (in shares)	2,613,732
Released (in shares)	(1,989,069)
Forfeited (in shares)	(607,864)
Outstanding, ending balance (in shares)	11,664,750
Weighted-Average Grant Date Fair Value
Outstanding, beginning balance (in usd per share) | $ / shares	$ 10.50
Outstanding, ending balance (in usd per share) | $ / shares	$ 11.87
Additional Information
Aggregate Intrinsic Value, beginning balance | $	$ 180,543
Aggregate Intrinsic Value, ending balance | $	$ 454,459

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Stock-based Compensation - Performance Stock Unit Activity (Details) - Performance Share Units $ / shares in Units, $ in Thousands	6 Months Ended
	Apr. 03, 2021 USD ($) $ / shares shares
Number of Units
Outstanding, beginning balance (in shares)	0
Granted (in shares)	158,521
Vested (in shares)	0
Forfeited (in shares)	0
Outstanding, ending balance (in shares)	158,521
Weighted-Average Grant Date Fair Value
Outstanding, beginning balance (in usd per share) | $ / shares	$ 0
Outstanding, ending balance (in usd per share) | $ / shares	$ 22.81
Additional Information
Aggregate Intrinsic Value, beginning balance | $	$ 0
Aggregate Intrinsic Value, ending balance | $	$ 6,176

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Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 16,363	$ 13,394	$ 31,207	$ 26,598
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	261	278	474	561
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	6,683	5,427	12,942	10,543
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	3,632	3,407	7,040	6,948
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 5,787	$ 4,282	$ 10,751	$ 8,546

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Income Tax Disclosure [Abstract]
(Benefit from) provision for income taxes	$ (6,542)	$ (1,810)	$ 2,578	$ (153)

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Net Income (Loss) Per Share Attributable to Common Stockholders - Computation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Apr. 03, 2021	Jan. 02, 2021	Mar. 28, 2020	Dec. 28, 2019	Apr. 03, 2021	Mar. 28, 2020
Numerator:
Net income	$ 17,221	$ 132,292	$ (52,320)	$ 70,775	$ 149,513	$ 18,454
Denominator:
Weighted-average shares of common stock - basic (in shares)	121,880,615		109,515,049		118,745,569	109,249,866
Weighted-average shares of common stock - diluted (in shares)	143,055,546		109,515,049		136,849,846	117,819,569
Net income (loss) attributable to common stockholders:
Net income (loss) per share attributable to common stockholders - basic (in USD per share)	$ 0.14		$ (0.48)		$ 1.26	$ 0.17
Net income (loss) per share attributable to common stockholders - diluted (in USD per share)	$ 0.12		$ (0.48)		$ 1.09	$ 0.16
Stock Options
Denominator:
Effect of potentially dilutive stock options, RSUs, and PSUs (in shares)	12,040,149		0		10,073,032	6,185,155
Restricted Stock Units
Denominator:
Effect of potentially dilutive stock options, RSUs, and PSUs (in shares)	9,105,551		0		8,016,629	2,384,548
Performance Share Units
Denominator:
Effect of potentially dilutive stock options, RSUs, and PSUs (in shares)	29,231		0		14,616	0

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Net Income (Loss) Per Share Attributable to Common Stockholders - Antidilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	10,787,394	41,921,718	16,675,876	34,060,389
Stock options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	7,523,579	34,840,568	12,299,023	29,425,147
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	3,219,598	7,081,150	4,354,744	4,635,242
Performance stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive securities (in shares)	44,217	0	22,109	0

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Restructuring Plan - Additional Information (Details) - 2020 Restructuring Plan - Facility Closing $ in Millions		3 Months Ended	12 Months Ended
	Jun. 23, 2020 office	Jan. 02, 2021 USD ($)	Oct. 03, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Percent of global headcount eliminated	12.00%
Number of satellite offices closed | office	6
Restructuring costs			$ 26.4
Gain on restructuring of debt		$ 2.8

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Retirement plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Retirement Benefits [Abstract]
Employer contribution	$ 1.8	$ 1.5	$ 3.5	$ 3.1