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, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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

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

	Three months ended September 30,						Nine months ended September 30,						Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019			2021			2020			2021			2020
Revenue (Note 3)	$	151		$	428		$	488		$	1,225		$	235		$	59		$	358		$	337

Costs and expenses:
Cost of revenue (1)(2)		13			25			42			73			19			10			31			29
Selling and marketing (2)		70			176			249			534			123			54			196			179
Technology and content (2)		46			76			166			224			54			51			109			120
General and administrative (2)		35			51			129			138			46			43			84			94
Depreciation and amortization		30			32			94			92			28			32			57			64
Impairment of goodwill (Note 7)		3			—			3			—
Restructuring and other related reorganization costs (Note 10)		—			—			42			—
Total costs and expenses:		197			360			725			1,061
Restructuring and other related reorganization costs (Note 1)														—			33			—			42
Total costs and expenses														270			223			477			528
Operating income (loss)		(46	)		68			(237	)		164			(35	)		(164	)		(119	)		(191	)
Other income (expense):
Interest expense		(13	)		(2	)		(22	)		(5	)		(11	)		(7	)		(22	)		(9	)
Interest income		1			5			3			14			—			1			1			2
Other income (expense), net (Note 14)		—			2			(9	)		—
Other income (expense), net (Note 13)														—			(9	)		(1	)		(9	)
Total other income (expense), net		(12	)		5			(28	)		9			(11	)		(15	)		(22	)		(16	)
Income (loss) before income taxes		(58	)		73			(265	)		173			(46	)		(179	)		(141	)		(207	)
(Provision) benefit for income taxes (Note 9)		10			(23	)		48			(63	)
(Provision) benefit for income taxes (Note 7)														6			26			21			38
Net income (loss)	$	(48	)	$	50		$	(217	)	$	110		$	(40	)	$	(153	)	$	(120	)	$	(169	)

Earnings (loss) per share attributable to common stockholders (Note 4):
Earnings (loss) per share attributable to common stockholders (Note 11):
Basic	$	(0.36	)	$	0.36		$	(1.61	)	$	0.79		$	(0.29	)	$	(1.14	)	$	(0.88	)	$	(1.25	)
Diluted	$	(0.36	)	$	0.36		$	(1.61	)	$	0.78		$	(0.29	)	$	(1.14	)	$	(0.88	)	$	(1.25	)
Weighted average common shares outstanding (Note 4):
Weighted average common shares outstanding (Note 11):
Basic		134			139			135			139			137			134			136			135
Diluted		134			140			135			141			137			134			136			135

(1) Excludes amortization as follows:
Amortization of acquired technology included in amortization of intangible assets	$	1		$	3		$	2		$	7		$	1		$	1		$	1		$	1
Amortization of website development costs included in depreciation		16			15			50			47			16			17			32			34
	$	17		$	18		$	52		$	54		$	17		$	18		$	33		$	35

(2) Includes stock-based compensation expense as follows (Note 5):
(2) Includes stock-based compensation expense as follows (Note 9):
Cost of revenue	$	—		$	—		$	1		$	1		$	—		$	—		$	1		$	1
Selling and marketing	$	4		$	5		$	12		$	17		$	4		$	4		$	8		$	7
Technology and content	$	12		$	13		$	32		$	40		$	13		$	9		$	24		$	20
General and administrative	$	12		$	11		$	35		$	33		$	15		$	12		$	28		$	23

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

	Three months ended						Nine months ended						Three months ended						Six months ended
	September 30,						September 30,						June 30,						June 30,
	2020			2019			2020			2019			2021			2020			2021			2020
Net income (loss)	$	(48	)	$	50		$	(217	)	$	110		$	(40	)	$	(153	)	$	(120	)	$	(169	)
Other comprehensive income (loss):
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax (1)		13			(10	)		7			(13	)		3			11			(9	)		(6	)
Reclassification adjustment for net losses included in net income (loss)		—			—			1			—
Reclassification adjustments included in net income (loss), net of tax														—			1			—			1
Total other comprehensive income (loss), net of tax		13			(10	)		8			(13	)		3			12			(9	)		(5	)
Comprehensive income (loss)	$	(35	)	$	40		$	(209	)	$	97		$	(37	)	$	(141	)	$	(129	)	$	(174	)

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

	September 30,			December 31,			June 30,			December 31,
		2020			2019			2021			2020
ASSETS
Current assets:
Cash and cash equivalents (Note 6)	$	446		$	319
Accounts receivable and contract assets, net of allowance for credit losses of $33 and $25, respectively (Note 2, Note 3)		91			183
Income taxes receivable		50			4
Cash and cash equivalents (Note 4)							$	775		$	418
Accounts receivable and contract assets, net of allowance for credit losses of $35 and $33, respectively (Note 3)								159			83
Income taxes receivable (Note 7)								47			50
Prepaid expenses and other current assets		26			27			25			22
Total current assets		613			533			1,006			573
Property and equipment, net of accumulated depreciation of $365 and $319, respectively		250			270
Property and equipment, net of accumulated depreciation of $420 and $386, respectively								225			240
Operating lease right-of-use assets		60			74			46			54
Intangible assets, net of accumulated amortization of $194 and $173, respectively		91			110
Goodwill (Note 7)		843			840
Intangible assets, net of accumulated amortization of $214 and $206, respectively								74			86
Goodwill								855			862
Non-marketable investments (Note 4)								38			40
Deferred income taxes, net		5			7			39			10
Non-marketable investments (Note 6)		40			55
Other long-term assets, net of allowance for credit losses of $5 and $0, respectively		94			95
Other long-term assets, net of allowance for credit losses of $5 and $5, respectively								104			104
TOTAL ASSETS	$	1,996		$	1,984		$	2,387		$	1,969

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	14		$	11		$	15		$	18
Deferred merchant payables		38			159			173			36
Deferred revenue (Note 3)		31			62			49			28
Accrued expenses and other current liabilities (Note 10)		148			203
Accrued expenses and other current liabilities (Note 5)								207			160
Total current liabilities		231			435			444			242
Long-term debt (Note 8)		490			—
Long-term debt (Note 6)								832			491
Finance lease obligation, net of current portion								68			71
Operating lease liabilities, net of current portion								37			46
Deferred income taxes, net		10			8			2			10
Other long-term liabilities		357			380			225			223
Total Liabilities		1,088			823			1,608			1,083

Commitments and contingencies (Note 11)
Stockholders’ equity: (Note 12)
Commitments and contingencies (Note 8)
Stockholders’ equity: (Note 10)
Preferred stock, $0.001 par value		—			—			—			—
Authorized shares: 100,000,000
Shares issued and outstanding: 0 and 0
Common stock, $0.001 par value		—			—			—			—
Authorized shares: 1,600,000,000
Shares issued: 140,515,819 and 138,698,307, respectively
Shares outstanding: 121,671,205 and 124,581,773, respectively
Shares issued: 143,418,007 and 140,775,221, respectively
Shares outstanding: 124,573,393 and 121,930,607, respectively
Class B common stock, $0.001 par value		—			—			—			—
Authorized shares: 400,000,000
Shares issued and outstanding: 12,799,999 and 12,799,999, respectively
Additional paid-in capital		1,224			1,150			1,275			1,253
Retained earnings		461			681			269			389
Accumulated other comprehensive income (loss)		(55	)		(63	)		(43	)		(34	)
Treasury stock-common stock, at cost, 18,844,614 and 14,116,534 shares, respectively		(722	)		(607	)
Treasury stock-common stock, at cost, 18,844,614 and 18,844,614 shares, respectively								(722	)		(722	)
Total Stockholders’ Equity		908			1,161			779			886
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	1,996		$	1,984		$	2,387		$	1,969

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

UNAUDITED CONDENSED CONSOLIDATED ~~STATEMENT~~STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

Three months ended September 30, 2020

Accumulated

Additional

other

Class B

paid-in

Retained

comprehensive

Common stock

common stock

capital

earnings

income (loss)

Treasury Stock

Shares

Amount

Shares

Amount

Shares

Amount

Total

Balance as of June 30, 2020

140,412,251

$
—

12,799,999

$
—

$
1,193

$
509

$
(68
)

(18,844,614
)

$
(722
)

$
912

Net income (loss)

(48
)

(48
)
Other comprehensive income (loss)

13

13

Issuance of common stock related to exercises of options and vesting of RSUs

103,568

—

—

—

Withholding taxes on net share settlements of equity awards

(1
)

(1
)
Stock-based compensation

32

32

Balance as of September 30, 2020

140,515,819

$
—

12,799,999

$
—

$
1,224

$
461

$
(55
)

(18,844,614
)

$
(722
)

$
908

Nine months ended September 30, 2020

Accumulated

Additional

other

Class B

paid-in

Retained

comprehensive

Common stock

common stock

capital

earnings

income (loss)

Treasury Stock

Shares

Amount

Shares

Amount

Shares

Amount

Total

Balance as of December 31, 2019

138,698,307

$
—

12,799,999

$
—

$
1,150

$
681

$
(63
)

(14,116,534
)

$
(607
)

$
1,161

Net income (loss)

(217
)

(217
)
Cumulative effect adjustment from adoption of new accounting guidance (Note 2)

(3
)

(3
)
Other comprehensive income (loss)

8

8

Issuance of common stock related to exercises of options and vesting of RSUs

1,817,512

—

—

—

Repurchase of common stock (Note 12)

(4,707,450
)

(115
)

(115
)
Withholding taxes on net share settlements of equity awards

(18
)

(18
)
Stock-based compensation

92

92

Other

(20,630
)

—

—

Balance as of September 30, 2020

140,515,819

$
—

12,799,999

$
—

$
1,224

$
461

$
(55
)

(18,844,614
)

$
(722
)

$
908

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

~~UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY~~

	Three months ended September 30, 2019																									Three months ended June 30, 2021
														Accumulated																										Accumulated
									Additional					other																				Additional						other
					Class B				paid-in			Retained		comprehensive																Class B				paid-in			Retained			comprehensive
	Common stock				common stock				capital			earnings		income (loss)			Treasury Stock									Common stock				common stock				capital			earnings			income (loss)			Treasury Stock
	Shares		Amount		Shares		Amount										Shares			Amount			Total			Shares		Amount		Shares		Amount											Shares			Amount			Total
Balance as of June 30, 2019		138,525,158	$	—		12,799,999	$	—	$	1,081		$	1,106	$	(65	)		(12,056,688	)	$	(547	)	$	1,575
Balance as of March 31, 2021																											142,914,851	$	—		12,799,999	$	—	$	1,244		$	309		$	(46	)		(18,844,614	)	$	(722	)	$	785
Net income (loss)													50											50														(40	)											(40	)
Other comprehensive income (loss)															(10	)								(10	)																3									3
Issuance of common stock related to exercises of options and vesting of RSUs		90,690		—						—														-			503,156		—						1															1
Withholding taxes on net share settlements of equity awards										(1	)													(1	)										(6	)														(6	)
Stock-based compensation										34														34											36															36
Balance as of September 30, 2019		138,615,848	$	—		12,799,999	$	—	$	1,114		$	1,156	$	(75	)		(12,056,688	)	$	(547	)	$	1,648
Balance as of June 30, 2021																											143,418,007	$	—		12,799,999	$	—	$	1,275		$	269		$	(43	)		(18,844,614	)	$	(722	)	$	779

	Nine months ended September 30, 2019																									Six months ended June 30, 2021
														Accumulated																										Accumulated
									Additional					other																				Additional						other
					Class B				paid-in			Retained		comprehensive																Class B				paid-in			Retained			comprehensive
	Common stock				common stock				capital			earnings		income (loss)			Treasury Stock									Common stock				common stock				capital			earnings			income (loss)			Treasury Stock
	Shares		Amount		Shares		Amount										Shares			Amount			Total			Shares		Amount		Shares		Amount											Shares			Amount			Total
Balance as of December 31, 2018		137,158,010	$	—		12,799,999	$	—	$	1,037		$	1,043	$	(62	)		(12,056,688	)	$	(547	)	$	1,471
Balance as of December 31, 2020																											140,775,221	$	—		12,799,999	$	—	$	1,253		$	389		$	(34	)		(18,844,614	)	$	(722	)	$	886
Net income (loss)													110											110														(120	)											(120	)
Cumulative effect adjustment from adoption of new accounting guidance													3											3
Other comprehensive income (loss)															(13	)								(13	)																(9	)								(9	)
Issuance of common stock related to exercises of options and vesting of RSUs		1,457,838		—						2														2			2,642,786		—						8															8
Purchase of capped calls, net of tax of $9 million (Note 6)																																			(26	)														(26	)
Withholding taxes on net share settlements of equity awards										(28	)													(28	)										(29	)														(29	)
Stock-based compensation										103														103											69															69
Balance as of September 30, 2019		138,615,848	$	—		12,799,999	$	—	$	1,114		$	1,156	$	(75	)		(12,056,688	)	$	(547	)	$	1,648
Balance as of June 30, 2021																											143,418,007	$	—		12,799,999	$	—	$	1,275		$	269		$	(43	)		(18,844,614	)	$	(722	)	$	779

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

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

	Three months ended June 30, 2020
															Accumulated
									Additional						other
					Class B				paid-in			Retained			comprehensive
	Common stock				common stock				capital			earnings			income (loss)			Treasury Stock
	Shares		Amount		Shares		Amount											Shares			Amount			Total
Balance as of March 31, 2020		140,109,681	$	—		12,799,999	$	—	$	1,167		$	662		$	(80	)		(18,823,984	)	$	(722	)	$	1,027
Net income (loss)													(153	)											(153	)
Other comprehensive income (loss)																12									12
Issuance of common stock related to exercises of options and vesting of RSUs		302,570		—						—															—
Withholding taxes on net share settlements of equity awards										(3	)														(3	)
Stock-based compensation										29															29
Other																			(20,630	)		—			—
Balance as of June 30, 2020		140,412,251	$	—		12,799,999	$	—	$	1,193		$	509		$	(68	)		(18,844,614	)	$	(722	)	$	912
	Six months ended June 30, 2020
															Accumulated
									Additional						other
					Class B				paid-in			Retained			comprehensive
	Common stock				common stock				capital			earnings			income (loss)			Treasury Stock
	Shares		Amount		Shares		Amount											Shares			Amount			Total
Balance as of December 31, 2019		138,698,307	$	—		12,799,999	$	—	$	1,150		$	681		$	(63	)		(14,116,534	)	$	(607	)	$	1,161
Net income (loss)													(169	)											(169	)
Cumulative effect adjustment from adoption of new accounting guidance													(3	)											(3	)
Other comprehensive income (loss)																(5	)								(5	)
Issuance of common stock related to exercises of options and vesting of RSUs		1,713,944		—						—															—
Repurchase of common stock (Note 10)																			(4,707,450	)		(115	)		(115	)
Withholding taxes on net share settlements of equity awards										(17	)														(17	)
Stock-based compensation										60															60
Other																			(20,630	)		—			—
Balance as of June 30, 2020		140,412,251	$	—		12,799,999	$	—	$	1,193		$	509		$	(68	)		(18,844,614	)	$	(722	)	$	912

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

	Nine months ended September 30,						Six months ended June 30,
	2020			2019			2021			2020
Operating activities:
Net income (loss)	$	(217	)	$	110		$	(120	)	$	(169	)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization		94			92			57			64
Stock-based compensation expense (Note 5)		80			91
Deferred income tax expense		5			12
Stock-based compensation expense (Note 9)								61			51
Deferred income tax expense (benefit)								(29	)		6
Provision for expected credit losses		19			8			3			15
Impairment of goodwill		3			—
Other, net		10			—			8			9
Changes in operating assets and liabilities, net of effects from acquisitions and other investments:
Accounts receivable and contract assets, prepaid expenses and other assets		78			(18	)		(87	)		95
Accounts payable, accrued expenses and other liabilities		(39	)		5			48			(46	)
Deferred merchant payables		(120	)		36			138			(100	)
Income tax receivables/payables, net		(62	)		18			6			(50	)
Deferred revenue		(31	)		10			21			(23	)
Net cash provided by (used in) operating activities		(180	)		364			106			(148	)

Investing activities:
Capital expenditures, including internal-use software and website development		(46	)		(60	)		(25	)		(36	)
Purchases of marketable securities		—			(118	)
Maturities of marketable securities		—			40
Other investing activities, net		—			(2	)		(1	)		2
Net cash used in investing activities		(46	)		(140	)
Net cash provided by (used in) investing activities								(26	)		(34	)

Financing activities:
Repurchase of common stock (Note 12)		(115	)		—
Proceeds from 2015 credit facility (Note 8)		700			—
Payment of financing costs from amendment of 2015 credit facility (Note 8)		(4	)		—
Payments to 2015 credit facility (Note 8)		(700	)		—
Proceeds from issuance of Senior Notes (Note 8)		500			—
Payment of financing costs from issuance of Senior Notes (Note 8)		(10	)		—
Repurchase of common stock (Note 10)								—			(115	)
Proceeds from issuance of 2026 Senior Notes, net of financing costs (Note 6)								340			—
Purchase of capped calls in connection with 2026 Senior Notes (Note 6)								(35	)		—
Proceeds from 2015 credit facility (Note 6)								—			700
Payment of financing costs related to 2015 credit facility								—			(4	)
Proceeds from exercise of stock options		—			2			8			—
Payment of withholding taxes on net share settlements of equity awards		(18	)		(28	)		(29	)		(17	)
Payments of finance lease obligation		(4	)		(4	)		(3	)		(3	)
Net cash provided by (used in) financing activities		349			(30	)		281			561
Effect of exchange rate changes on cash, cash equivalents and restricted cash		4			(11	)		(4	)		—
Net increase in cash, cash equivalents and restricted cash		127			183			357			379
Cash, cash equivalents and restricted cash at beginning of period		319			655			418			319
Cash, cash equivalents and restricted cash at end of period	$	446		$	838		$	775		$	698

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

We refer to Tripadvisor, Inc. and our wholly-owned subsidiaries as “Tripadvisor”, “the Company”, “us”, “we” and “our” in these notes to the unaudited condensed consolidated financial statements.

Tripadvisor is a leading online travel company and our mission is to help people around the world plan, book and experience the perfect trip. We operate a global travel guidance platform that connects the world’s largest audience of prospective travelers with travel partners through rich content, price comparison tools, and online reservation and related services for destinations, accommodations, travel activities and experiences, and restaurants.

Under our flagship brand, Tripadvisor, we launched ~~www.Tripadvisor.com~~www.tripadvisor.com in the U.S. in 2000. ~~Since then, we have launched localized versions of the Tripadvisor website in~~ 48 markets and 28 languages worldwide. Tripadvisor features 878 million reviews and opinions on 8.8 million places to stay, places to eat and things to do – including 1.5 million hotels, inns, B&Bs and specialty lodging, 790,000 rental properties, 4.7 million restaurants, 1.3 million travel activities and experiences worldwide, 500,000 airlines, and 30,000 cruises. ~~Tripadvisor’s rich content and engaged community attract the world’s largest travel audience, based on the hundreds of millions of unique visitors that visit our sites each month~~.

In addition to the flagship Tripadvisor brand, which now operates in localized versions in over 40 markets worldwide, we also own and operate a portfolio of online travel ~~media~~ brands and businesses, operating under various websites ~~including the following: www.bokun.io, www.cruisecritic.com, www.flipkey.com, www.thefork.com (including www.lafourchette.com, www.eltenedor.com, www.bookatable.co.uk,~~ and www.delinski.com), www.helloreco.com, www.holidaylettings.co.uk, www.housetrip.com, www.jetsetter.com, www.niumba.com, www.seatguru.com, www.singleplatform.com, www.vacationhomerentals.com, and www.viator.com.apps.

The accompanying unaudited condensed consolidated financial statements present our results of operations, financial position and cash flows on a consolidated basis. The unaudited condensed consolidated financial statements include Tripadvisor, our wholly-owned subsidiaries, and entities we control, or in which we have a variable interest and are the primary beneficiary of expected cash profits or losses. All inter-company accounts and transactions have been eliminated in consolidation. One of our subsidiaries that operates in China has variable interests in affiliated entities in China in order to comply with Chinese laws and regulations, which restrict foreign investment in internet content provision businesses. Although we do not own the capital stock of these Chinese affiliates, we consolidate their results as we are the primary beneficiary of the cash losses or profits of these variable interest affiliates and have the power to direct the activity of these affiliates. Our variable interest entities’ financial results were not material for all periods presented. Investments in entities in which we do not have a controlling financial interest are accounted for under the equity method, the fair value option, as available-for-sale securities or at cost adjusted for observable price changes and impairments, as appropriate.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”) and include all normal and recurring adjustments that management of the Company considers necessary for a fair presentation of its financial position and operating results. We prepared the unaudited condensed consolidated financial statements following the requirements of the U.S. Securities and Exchange Commission (“SEC”) for interim reporting. As permitted under those rules, we condensed or omitted certain footnotes or other financial information that are normally required by GAAP for annual financial statements. Additionally, certain prior period amounts have been reclassified for comparability with the current period presentation. Our interim unaudited condensed consolidated financial statements are not necessarily indicative of results that may be expected for any other interim period or for the full year. These interim unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in our Annual Report on Form 10-K for the year ended December 31, ~~2019,~~2020, previously filed with the SEC. The unaudited condensed consolidated balance sheet as of December 31, ~~2019~~2020 included herein was derived from the audited consolidated financial statements as of that date, but does not include all disclosures including notes required by GAAP.

As of ~~September~~June 30, ~~2020,~~2021, Liberty ~~TripAdvisor~~Tripadvisor Holdings, Inc. (“LTRIP”) beneficially owned approximately ~~18.2~~16.4 million shares of our common stock and 12.8 million shares of our Class B common stock, which constitute ~~14.9%~~13.2% of the outstanding shares of common stock and 100% of the outstanding shares of Class B common stock. Assuming the conversion of all of LTRIP’s shares of Class B common stock into common stock, LTRIP would beneficially own ~~23.0%~~21.3% of the outstanding common stock. Because each share of Class B common stock is entitled to 10 votes per share and each share of common stock is entitled to 1 vote per share,

LTRIP may be deemed to beneficially own equity securities representing ~~58.5~~%57.2% of our voting power. We had 0 related party transactions with LTRIP during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020~~2021 and ~~2019, respectively.~~2020.

We continue to be subject to risks and uncertainties as a result of the COVID-19 pandemic. COVID-19 has caused material and adverse declines in consumer demand within the travel, hospitality, restaurant, and leisure industry. The pandemic’s proliferation, concurrent with travel bans, varying levels of governmental restrictions and mandates globally to limit the spread of the virus, has dampened consumer demand for our products and services, and impacted consumer sentiment and discretionary spending patterns, all of which have adversely and materially impacted our results of operations, liquidity and financial condition during the three and nine months ended September 30, 2020. In addition, given the volatility in global markets and economies and the financial difficulties faced by many of our travel suppliers and restaurant customers, we have materially increased our provision for expected credit losses (also referred to as provision for bad debt or provision for uncollectible accounts) on our accounts receivables (see ~~“Note 3:~~ ~~Revenue Recognition~~”~~). Moreover, we may continue to incur, higher than normal cash outlays to refund consumers for cancellations of prepaid bookings (see “Note 3:~~ ~~Revenue Recognition”). Any increase in our provision for expected credit losses and cash outlays to consumers would also have a corresponding adverse effect on our results of operations and related cash flows.~~

While we have seen varying degrees of containment of the virus in ~~certain~~various countries and ~~some~~positive signs of growing travel demand recovery, the degree of containment and the recovery in travel has varied both region-to-region ~~globally,~~on a global basis, as well as state-to-state in the U.S., For example, when

COVID-19 cases resurged during the fourth quarter of 2020, government restrictions and ~~there have been instances where cases of COVID-19 have started to increase again after a period of decline.~~ mandates were reinstated in certain geographies globally. We do not know the future path or rate of global or regional COVID-19 transmission, including various existing COVID-19 variants or any possible future variants, nor do we have visibility into when remaining ~~bans~~or reinstated restrictions will be lifted, and where additional ~~bans~~restrictions may be ~~initiated,~~implemented or ~~where bans that have been previously lifted will be~~ reinstated in the future due to resurgence of the ~~virus, nor~~virus. Correspondingly, we still do wenot have forward-looking visibility into what the ~~short or~~ long-term ~~changes~~impacts may be related to consumer demand for travel, usage patterns on our platform, orand travel behavior patterns when all travel bans and other government restrictions and mandates are fully lifted.

In response to the COVID-19 pandemic, the Company committed to restructuring actions intended to reinforce its financial position, reduce its cost structure, and improve operational efficiencies, which resulted in headcount reductions, during the second quarter of 2020, for which we recognized $33 million in restructuring and other related reorganization costs. In addition, we engaged in a smaller scale restructuring action in the first quarter of 2020 to reduce our cost structure and improve our operational efficiencies, which resulted in headcount reductions for which we recognized $9 million in restructuring and other related reorganization costs.

In the fourth quarter of 2020, multiple COVID-19 vaccines were approved for widespread distribution throughout various parts of the world, including the United States and in Europe, and in the first quarter of 2021, vaccination distribution programs were initiated around the world. Vaccine programs in our largest markets, the U.S. and Europe, appear to be progressing well, and we expect the same for much of the rest of the world. We are encouraged by these developments; however, the timing of widespread vaccine distributions, efficacy against new variants of COVID-19, whether there will be resurgences of the virus and subsequent government restrictions, the extent and effectiveness of containment actions taken, and whether consumers demand for travel and hospitality services will continue to be negatively impacted remain uncertain. Therefore, the ~~ultimate~~continuing extent of the impact of the COVID-19 pandemic on our business, results of operations, liquidity and financial condition remains ~~highly~~ uncertain, and ~~difficult to predict, as the response to the pandemic continues to~~is dependent on future developments that cannot be ~~ongoing and shifting, and the ultimate duration and severity of the pandemic remains uncertain and unpredictable. However, we~~accurately predicted at this time. We continue to believe the travel, leisure, hospitality, and restaurant industries (collectively, the “travel industry”), and ~~leisure industry, and~~consequently our ~~business,~~financial results, will continue to be adversely and materially affected while the pandemic continues, ~~to proliferate~~new variants emerge, and lingering travel bans and other government restrictions and mandates continue to remain in place or be reinstated, all of which negatively impact consumer demand, sentiment and discretionary spending patterns.

Furthermore, capital markets and economies worldwide have also been negatively impacted by the COVID-19 pandemic to varying degrees, and it is possible that it could result in a protracted local and/or global economic recession. Such economic disruption could also have a material adverse effect on our business as consumers reduce their discretionary spending. Policymakers around the globe have responded with fiscal policy actions to support certain areas of the travel industry and economy as a whole. The continued magnitude and overall effectiveness of these actions remain uncertain.

In response to the impact of COVID-19, we have taken several steps to further strengthen our financial position and balance sheet, and maintain financial liquidity and flexibility, including by significantly reducing our ongoing operating expenses and headcount, by borrowing funds of $700 million from our 2015 Credit Facility in the first quarter of 2020 (subsequently repaid during the third quarter of 2020), amending our 2015 Credit Facility, which included short-term financial covenant relief, and raising additional financing through the issuance of $500 million in Senior Notes by the Company in July 2020, all of which are described in more detail in “Note 8: ~~Debt~~” ~~and “Note 10:~~ ~~Accrued Expenses and Other Current Liabilities~~”.

On March 27, 2020, the U.S. government enacted the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act"), an emergency economic stimulus package in response to the COVID-19 pandemic, which among other things contains numerous income tax provisions. Some of these income tax provisions are effective retroactively for fiscal years ended before the date of enactment. As a result of the CARES Act, we have recorded an income tax benefit of $3 million and $22 million during the three and nine months ended September 30, 2020, respectively. For further details of income tax benefits recorded by us under the CARES Act, refer to “Note 9: ~~Income Taxes~~”.

In addition, certain governments have passed legislation to help businesses during the COVID-19 pandemic through loans, wage subsidies, tax relief or other financial aid, and some of these governments have extended or are considering extending these programs. We have participated in several of these programs, including the CARES Act in the U.S., the United Kingdom's job retention scheme and certain other jurisdictions' programs. In addition, in certain countries, such as within the European Union, Singapore, Australia, and other jurisdictions, we are also participating in programs where government assistance is in the form of wage subsidies and reductions in wage-related employer taxes paid by us. During the three and nine months ended September 30, 2020, we recognized government grants and other assistance benefits of $3 million and $10 million, respectively, of which $5 million has been received as of September 30, 2020. These amounts are recorded as a reduction of personnel and overhead costs in the unaudited condensed consolidated statements of operations. As of September 30, 2020, we have recorded a receivable of $5 million, included in prepaid expenses and other current assets in our unaudited condensed consolidated balance sheets, for payments expected to be received for

the programs where we have met the qualifying requirements and it is probable that payment will be received. These payments, primarily related to qualified payroll tax credits under the CARES Act, are expected to be received in 2020.

We use estimates and assumptions in the preparation of our unaudited condensed consolidated financial statements in accordance with GAAP. Our estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of our unaudited condensed consolidated financial statements. These estimates and assumptions also affect the reported amount of net income or loss during any period. Our actual financial results could differ significantly from these estimates. The significant estimates underlying our unaudited condensed consolidated financial statements include: (i) recognition and recoverability of ~~goodwill, definite-lived intangibles and other long-lived assets;~~goodwill; and (ii) accounting for income taxes.

The COVID-19 pandemic has created ~~and may continue to create~~ significant uncertainty in macroeconomic conditions, which may cause further business disruptions and continue to adversely and materially impact our results of operations. As a result, some of our estimates and assumptions required increased judgment and carry a higher degree of variability and volatility. As events continue to evolve and additional information becomes available, our estimates may change materially in future periods.

Consumers’ travel expenditures have historically followed a seasonal pattern. Correspondingly, travel partners’ advertising investments, and therefore our revenue and profits, have also historically followed a seasonal pattern. Our financial performance tends to be seasonally highest in the second and third quarters of a given year, which includes the seasonal peak in consumer demand, traveler hotel and rental stays, and travel activities and experiences taken, compared to the first and fourth quarters, which represent seasonal low ~~points. However, due~~points. Due to the impact of COVID-19 on our business, which led to unfavorable working capital trends and material negative operating cash flow during the year ended December 31, 2020, we did not experience our typical seasonal pattern for revenue and profit during the ~~three~~calendar quarters within the year ended December 31, 2020. Although consumer demand, traveler hotel and ~~nine months ended September 30, 2020.In addition, cash outflows to~~rental stays, and travel ~~suppliers related to deferred merchant payables significantly exceeded cash received from travelers~~activities and experiences taken generally remain materially lower than historic levels, these trends have improved during the first ~~nine months~~half of ~~2020, primarily reflecting~~2021, particularly in the ~~decline~~second quarter of 2021, resulting in ~~consumer demand for our products and cancellations of reservations related to COVID-19, contributing significantly to unfavorable~~increased revenues, working capital ~~trends~~ and ~~material negative~~positive operating cash flow ~~during~~more akin to typical historical seasonality trends in the ~~nine months ended September 30, 2020. It~~first half of the year. However, it is difficult to ~~forecast~~predict the seasonality for the upcoming quarters, given the sustained uncertainty related to the ~~ultimate extent and duration~~continued economic impact of the ~~impact from~~ COVID-19 ~~the timing of development and widespread availability of a vaccine,~~pandemic, and the ultimate shape and timing of a ~~recovery.~~recovery in our key markets. In addition, significant shifts in our business mix or adverse economic conditions could result in future seasonal patterns that are different from historical trends.

~~With the exception of the change for~~Standards Board (“FASB”) issued new accounting guidance which simplifies the accounting for convertible debt instruments by reducing the number of ~~credit losses~~accounting models and embedded conversion features that could be recognized separately from the primary contract. The new accounting guidance requires a convertible debt instrument to be accounted for as a ~~result~~single liability measured at its amortized cost, as long as no other features require bifurcation and recognition as derivatives. The new accounting guidance requires an entity to use the if-converted method in the diluted earnings per share calculation for convertible instruments. This guidance is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2021, with early adoption permitted, including adoption in any interim period. We early adopted this new guidance in the first quarter of ~~adopting ASC 326 –~~2021 and there was no impact to any prior periods. Refer to “Note 6: ~~Financial Instruments – Credit Losses~~Debt ~~(“ASC 326”) on January 1, 2020,~~” as ~~discussed below, there~~the Company applied this guidance to its 2026 Senior Notes.

There have been no other significant changes to our accounting policies since December 31, ~~2019,~~2020, as described under “Note 2: Significant Accounting Policies”, in the notes to consolidated financial statements in Item 8 of our Annual Report on Form 10-K for the year ended December 31, ~~2019.~~

In June 2016, the FASB issued new accounting guidance which replaces the incurred loss impairment model with an expected loss methodology on the measurement of credit losses for financial assets measured at amortized cost, which includes accounts receivable, notes receivable, and available-for-sale debt securities. For financial assets measured at amortized cost, this new guidance requires an entity to: (1) estimate its lifetime expected credit losses upon recognition of the financial assets and establish an allowance to present the net amount expected to be collected; (2) recognize this allowance and changes in the allowance during subsequent periods through net income; and (3) consider relevant information about past events, current conditions and reasonable and supportable forecasts in assessing the lifetime expected credit losses. For available-for-sale debt securities, this new guidance made several targeted amendments to the existing other-than-temporary impairment model, including: (1) requiring disclosure of the allowance for credit losses; (2) allowing reversals of the previously recognized credit losses until the entity has the intent to sell, is more-likely-than-not required to sell the securities or the maturity of the securities; (3) limiting impairment to the difference between the amortized cost basis and fair value; and (4) not allowing entities to consider the length of time that fair value has been less than amortized cost as a factor in evaluating whether a credit loss exists. In addition, ASC 326 made changes to the accounting for

available-for-sale debt securities. One such change is to require credit losses to be presented as an allowance rather than as a write-down on available-for-sale debt securities management does not intend to sell or believes that it is more likely than not they will be required to sell.

The Company adopted ASC 326 on January 1, 2020, using a modified retrospective transition method for all financial assets measured at amortized cost, which requires a cumulative-effect adjustment of initial application, if any, to be recognized on the date of adoption. The cumulative-effect adjustment recorded by the Company on January 1, 2020 to retained earnings on its unaudited condensed consolidated balance sheet was $3 million. Financial results for reporting periods beginning after January 1, 2020 are presented under the new guidance, while prior period amounts are not adjusted and continue to be reported in accordance with previous GAAP. Credit loss estimates on accounts receivable are recorded in general and administrative expenses on our unaudited condensed consolidated statement of operations. Credit loss estimates on available-for-sale debt securities are recorded in interest expense on our unaudited condensed consolidated statement of operations. The Company has updated its significant accounting policies as described below as of January 1, 2020.

~~Accounts Receivable and Allowance for Credit Losses.~~ The Company historically recorded an allowance for doubtful accounts using the incurred loss model. Upon adoption of ASC 326, the Company transitioned to the “expected credit loss” methodology in estimating its allowance for credit losses.

We apply the “expected credit loss” methodology by first assessing our historical losses based on credit sales and then adding in an assessment of expected changes in the foreseeable future, whether positive or negative, to the Company’s ability to collect its outstanding accounts receivables, or the expectation for future losses. The Company develops its expectation for future losses by assessing the profiles of its customers using their historical payment patterns, any known changes to those customers’ ability to fulfill their payment obligations, and assessing broader economic conditions that may impact our customers’ ability to pay their obligations. Where appropriate, the Company performs this analysis using a portfolio approach. Portfolios comprise customers with similar characteristics and payment history, and we have concluded that the aggregation of these customers into various portfolios does not produce a result that is materially different from considering the affected customers individually. Customers are assigned internal credit ratings, as determined by the Company, based on our collection profiles. Customers whose outstanding obligations are less likely to experience a credit loss are assigned a higher internal credit rating, and those customers whose outstanding obligations are more likely to experience a credit loss are assigned a lower credit rating. We recognize a greater credit loss allowance on the accounts receivable due from those customers in the lower credit tranche, as determined by the Company. When the Company becomes aware of facts and circumstances affecting an individual customer, it also takes that specific customer information into account as part of its calculation of expected credit losses.

The Company's exposure to credit losses may increase if our customers are adversely affected by changes in macroeconomic pressures or uncertainty associated with local or global economic recessions, including the economic impact to our customers associated with COVID-19, or other customer-specific factors.

~~Available-for-sale debt securities.~~ The Company's investment portfolio at any point in time may contain investments in U.S. treasury and U.S. government agency securities, taxable and tax-exempt municipal notes, corporate notes and bonds, commercial paper, non-U.S. government agency securities, term deposits, and money market funds. The Company segments its portfolio based on the underlying risk profiles of the securities and has a 0 loss expectation for U.S. treasury and U.S. government agency securities. The Company regularly reviews the securities in an unrealized loss position and evaluates the expected credit loss risk by considering factors such as historical experience, market data, issuer-specific factors, and current economic conditions. As of September 30, 2020, the Company had 0 available-for-sale-debt securities.

We generate all of our revenue from contracts with customers. We recognize revenue when we satisfy a performance obligation by transferring control of the promised services to a customer in an amount that reflects the consideration that we expect to receive in exchange for those services. When we act as an agent in the transaction, we recognize revenue for only our commission on the arrangement. We determine revenue recognition through the following steps:

At contract inception, we assess the services promised in our contracts with customers and identify a performance obligation for

each promise to transfer to the customer a service (or bundle of services) that is distinct. To identify ~~the~~ performance obligations, we consider all ~~of the~~ services promised in the contract regardless of whether they are explicitly stated or are implied by customary business practices. We have provided qualitative information about our performance obligations for our principal revenue streams discussed below. There was no significant revenue recognized in the three and ~~nine~~six months ended ~~September~~June 30, 2021 and 2020, ~~and 2019~~respectively, related to performance obligations satisfied in prior ~~periods, respectively.~~periods. We have applied a practical expedient and do not disclose the value of unsatisfied performance obligations that have an original expected duration of less than one year, and we do not have any material unsatisfied performance obligations over one year. The value related to our remaining or partially satisfied performance obligations relates to subscription services that are satisfied over time or services that are recognized at a point in time, but not yet achieved. Our timing of services, invoicing and payments are discussed in more detail below and do not include a significant financing component. Our customer invoices are generally due 30 days from the time of invoicing. The application of our revenue recognition policies and a description of our principal activities, organized by segment, from which we generate our revenue, are presented below.

Tripadvisor-branded Hotels Revenue. Our largest source of Hotels, Media & Platform segment revenue is generated from click-based advertising on Tripadvisor-branded websites, which is primarily comprised of contextually-relevant booking links to our travel partners’ websites. Our click-based travel partners are predominantly OTAs and hotels. Click-based advertising is generally priced on a cost-per-click, or “CPC”, basis, with payments from travel partners determined by the number of travelers who click on a link multiplied by the CPC rate for each specific click. CPC rates are determined in a dynamic, competitive auction process, also known as hotel auction revenue, where our travel partner CPC bids for rates and availability to be listed on our site are submitted. When a CPC bid is submitted, the travel partner agrees to pay us the bid amount each time a traveler clicks on the link to that travel partner’s websites. Bids can be submitted periodically – as often as daily – on a property-by-property basis. We record click-based advertising revenue as the click occurs and traveler leads are sent to the travel partner websites as our performance obligation is fulfilled at that time. Click-based revenue is generally billed to our travel partners on a monthly basis consistent with the timing of the service.

In addition, we offer subscription-based advertising to ~~hotel partners,~~hotels, owners of B&Bs and other specialty lodging properties. Our performance obligation is generally to enable subscribers to advertise their businesses on our website, as well as to manage and

promote their website URL, email address, phone number, special offers and other information related to their business. Subscription-based advertising services are predominantly sold for a flat fee for a contracted period of time of one year or less and revenue is recognized on a straight-line basis over the period of the subscription service as efforts are expended evenly throughout the contract period. Subscription-based advertising services are generally billed at the inception of the service. When prepayments are received, we recognize deferred revenue for the amount of prepayment in excess of revenue recognized until the performance obligation is satisfied.

We also offer travel partners the opportunity to advertise and promote their business through hotel sponsored placements on our websites. This service is generally priced on a CPC basis, with payments from travel partners determined by the number of travelers who click on the sponsored link multiplied by the CPC rate for each specific click. CPC rates for hotel sponsored placements that our travel partners pay are based on a pre-determined contractual rate. We record this click-based advertising revenue as the click occurs and traveler leads are sent to the travel partner as our performance obligation is fulfilled at that time. Hotel sponsored placements revenue is generally billed to our travel partners on a monthly basis consistent with the timing of the service. To a lesser extent, we generate revenue from our cost-per-action, or “CPA” model, which consists of contextually-relevant booking links to our travel partners’ websites which are advertised on our platform. We earn a commission from our travel partners, based on a pre-determined contractual commission rate, for each traveler who clicks to and books a hotel reservation on the travel partners’ website, which results in a traveler stay. CPA revenue is billable only upon the completion of each traveler’s stay resulting from a hotel reservation. The travel partners provide the service to the travelers and we act as an agent under ASC ~~606.~~606 – Revenue from Contracts with Customers (“ASC 606”). Our performance obligation is complete at the time of the hotel reservation booking, and the commission earned is recognized upon booking, as we have no post-booking service obligations. ~~Revenue recognized under the CPA model requires~~We recognize this revenue net of an estimate of the impact of cancellations, using historical cancellation rates ~~at the time of booking.~~and current trends. Contract assets are recognized at the time of booking for commissions that are billable at the time of stay. To a lesser extent, we offer travel partners the opportunity to advertise and promote their business through hotel sponsored placements on our websites. This service is generally priced on a CPC basis, with payments from travel partners determined by the number of travelers who click on the sponsored link multiplied by the CPC rate for each specific click. CPC rates for hotel sponsored placements that our travel partners pay are generally based on bids submitted as part of an auction by our travel partners. When a CPC bid is submitted, the travel partner agrees to pay us the bid amount each time a traveler clicks on a link to our travel partner’s websites. Bids may be submitted periodically – as often as daily – on a property-by-property basis. We record this click-based advertising revenue as the click occurs and traveler leads are sent to the travel partner as our performance obligation is fulfilled at that time. CPA and hotel sponsored placements revenue is generally billed to our travel partners on a monthly basis consistent with the timing of the service.

Tripadvisor-branded Display and Platform Revenue. We offer ~~advertising~~travel partners the ability to promote their brands through display-based advertising placements on our websites across all of our segments and business units. Our display-based advertising clients are predominantly direct suppliers of hotels, airlines and cruises, as well as destination marketing organizations. We also sell display-based advertising to OTAs and other travel related businesses, as well as advertisers from non-travel categories. Display-based advertising is sold predominantly on a cost per thousand impressions, or CPM, basis. The performance obligation in our display-based advertising arrangements is to display a number of advertising impressions on our websites and we recognize revenue for impressions as they are delivered. Services are generally billed monthly. We have applied the practical expedient to measure progress toward completion, as we have the right to invoice the customer in an amount that directly corresponds with the value to the customer of our performance to date, which is measured based on impressions delivered.

We provide information and services that allow consumers to research and book tours, activities and ~~attractions~~experiences in popular travel destinations both through Viator, our dedicated Experiences offering, and on our Tripadvisor website and mobile apps. We also power travel tours, activities and experiences booking capabilities to consumers on affiliate partner websites, including some of the world’s top airlines, hotel chains, and online and offline travel agencies. We work with local tour or travel activities/experiences operators (“the ~~supplier”~~suppliers”) to provide consumers the ability to book tours, activities and experiences (“the ~~activity”~~activities”) in popular destinations worldwide. We generate commissions for each booking transaction we facilitate through our online reservation system. We provide post-booking service to the customer until the time of the activity, which is the completion of the performance obligation. Revenue is recognized at the time that the activity occurs. We generally do not control the activity before the supplier provides it to our customer nor have inventory risk and therefore act as agent for nearly all of these transactions under ASC 606. We generally collect payment from the customer at the time of booking that includes both our commission revenue and the amount due to the supplier. Our commission revenue is recorded as deferred revenue until the activity occurs and revenue is recognized, and the amount due to the supplier is recorded as deferred merchant payables on our consolidated balance sheet until completion of the activity and payment is made to the supplier. To a lesser extent, we earn commissions from ~~affiliate partners, or~~ third-party merchant partners who display and promote on their websites the supplier activities available on our platform to generate bookings. In these transactions, where we are not the merchant of record, we generally invoice and receive commissions directly from the third-party merchant partners. Our performance obligation is to allow the third-party merchant partners to display and promote on their website suppliers who utilize our platform and we earn a commission when consumers book and complete an activity. We act as an agent under ASC 606 in these transactions, as we do not control the service ~~and act as an agent for these transactions under ASC 606.~~nor have inventory risk. Our performance obligation is complete and revenue is recognized at the time of the booking, as we have no post-booking obligations. We recognize this revenue net of an estimate of the impact of cancellations, which is not material, using historical cancellation ~~rates.~~rates and current trends. Contract assets are recognized for commissions that are billable contingent upon completion of the activity.

We also provide information and services for consumers to research and book ~~restaurants~~restaurant reservations in popular travel destinations through our dedicated online restaurant reservations offering, TheFork, and on our Tripadvisor-branded websites and mobile apps. We primarily generate transaction fees (or per seated diner fees) that are paid by ~~restaurants~~our restaurant customers for diners seated primarily from bookings through TheFork’s online reservation system. The transaction fee is recognized as revenue after the reservation is fulfilled, or as diners are seated by our restaurant customers. We invoice restaurants monthly for transaction fees. To a lesser extent, we also generate subscription fees for subscription-based advertising to restaurants, access to certain online reservation management services, marketing analytic tools, and menu syndication services provided by TheFork and Tripadvisor. As the performance obligation is to provide restaurants with access to these services over the subscription period, subscription fee revenue is recognized over the period of the subscription service on a straight-line basis as efforts are expended evenly throughout the contract period. Subscription fees are generally billable in advance of service. When prepayments are received, we recognize deferred revenue for the amount of prepayment in excess of revenue recognized until the performance obligation is satisfied. In addition, we also offer restaurant partners the opportunity to advertise and promote their business through restaurant media advertising placements on our website. This service is generally priced on a CPC basis, with payments from restaurant partners determined by the number of ~~users~~consumers who click on the sponsored link multiplied by the CPC rate for each specific click. CPC rates for media advertising placements that our restaurant partners pay are based on a pre-determined contractual rate. We record this click-based advertising revenue as the click occurs and diner leads are sent to the restaurant partner as our performance obligation is fulfilled at that time. Click-based revenue is generally billed to our restaurant partners on a monthly basis consistent with the timing of the service.

We provide information and services that allow travelers to research and book vacation and short-term rental properties, including full homes, condominiums, villas, beach properties, cabins and cottages. Our Rentals offering generates revenue primarily by offering individual property owners and managers the ability to list their properties on our websites and mobile apps thereby connecting with travelers through a free-to-list, commission-based option or, to a lesser extent, by an annual subscription-based fee structure. These properties are listed on www.flipkey.com, www.holidaylettings.co.uk, www.housetrip.com, www.niumba.com, and www.vacationhomerentals.com, and on our Tripadvisor-branded websites and mobile apps. We earn commissions associated with rental transactions through our free-to-list model from both the traveler, and the property owner or manager. We provide post-booking service to the travelers, property owners and managers until the time the rental commences, which is the time the performance obligation is completed. Revenue from transaction fees is recognized at the time that the rental commences. We act as an agent, under ASC 606, in the transactions as we do not control any properties before the property owner provides the accommodation to the traveler and do not have inventory risk. We generally collect payment from the traveler at the time of booking, ~~payment~~ representing the amount due to the property owner or manager, as well as our commission. That portion of the payment representing our commission is recorded as deferred revenue until revenue is recognized, and that portion of the payment representing the amount due to the property owner is recorded as deferred merchant payables until payment is made to the property owner after the completion of the rental. Payments for term-based subscription fees related to online advertising services for the listing of rental properties are generally due in advance. As the performance obligation is the listing service provided to the property owner or manager over the subscription period, revenue is recognized over the period of the subscription service on a straight-line basis as efforts are expended evenly throughout the

contract period. We recognize deferred revenue for the amount of prepayment in excess of revenue recognized until the performance obligation is satisfied.

In addition, Other also includes revenue generated from flights, cruises, and car offerings on ~~Tripadvisor,~~Tripadvisor-branded websites and Tripadvisor’s portfolio of travel media brands, which primarily includes click-based advertising and display-based advertising revenue. The performance obligations, timing of customer payments for these brands, and methods of revenue recognition are generally consistent with click-based advertising and display-based advertising revenue, as described above.

We disaggregate revenue from contracts with customers into major products/revenue sources. We have determined that disaggregating revenue into these categories achieves the disclosure objective to depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. As noted in “Note ~~13:~~12: Segment Information,” our business consists of 2 reportable segments – (1) Hotels, Media & Platform; and (2) Experiences & Dining. A reconciliation of disaggregated revenue to segment revenue is also included below. Other consists of a combination of business units, and does not constitute a reportable segment.

	Three months ended September 30,				Nine months ended September 30,				Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019		2021		2020		2021		2020
Major products/revenue sources (1):	(in millions)								(in millions)
Hotels, Media & Platform
Tripadvisor-branded hotels	$	67	$	197	$	235	$	624	$	131	$	31	$	205	$	168
Tripadvisor-branded display and platform		13		41		52		122		25		7		40		39
Total Hotels, Media & Platform		80		238		287		746		156		38		245		207

Experiences & Dining		53		141		150		346		68		14		95		97
Other ~~(2)~~		18		49		51		133		11		7		18		33
Total Revenue	$	151	$	428	$	488	$	1,225	$	235	$	59	$	358	$	337

The following table provides information about the opening and closing balances of accounts receivable and contract assets, net of allowance for credit losses, from contracts with customers (in millions):

	September 30, 2020		December 31, 2019		June 30, 2021		December 31, 2020
Accounts receivable		80		176		114		70
Contract assets		11		7		45		13
Total	$	91	$	183	$	159	$	83

Accounts receivable are recognized when the right to consideration becomes unconditional. Contract assets are rights to consideration in exchange for services that we have transferred to a customer when that right is conditional on something other than the passage of time, such as commission payments that are contingent upon the completion of the service by the principal in the transaction. ~~During~~The difference between the ~~nine months ended September 30, 2020, we recorded approximately $8 million~~opening and closing balances of ~~incremental allowance for expected credit losses on accounts receivable and~~our contract assets primarily results from the timing difference between when ~~compared~~we satisfy our performance obligations and the time when the principal completes the service in the transaction. Our contract assets increased during the second quarter of 2021 as a result of typical seasonality, increased consumer demand due to the ~~same period in 2019, including estimated future losses in consideration~~growing consumer travel demand recovery, and increased utilization of ~~the impact of COVID-19 pandemic on the economy and the Company. Actual future bad debt could differ materially from this estimate resulting from changes in~~ our ~~assumptions of the duration and ultimate severity of the impact of the COVID-19 pandemic.~~CPA model by travel partners.

Contract liabilities generally include payments received in advance of performance under the contract, and are realized as revenue as the performance obligation to the customer is satisfied, which we present as deferred revenue on our consolidated balance sheets. As of January 1, 2021, we had $28 million recorded as deferred revenue on our unaudited condensed consolidated balance sheet, of which $6 million and $17 million were recognized in revenue and $1 million and $3 million were refunded due to cancellations by travelers during the three and six months ended June 30, 2021, respectively. As of January 1, 2020, we had $62 million recorded as deferred revenue on our unaudited condensed consolidated balance sheet, of which $5$12 million and ~~$49~~$44 million were recognized asin revenue and $1$4 million and ~~$11~~$10 million were refunded due to cancellations by travelers during the three and ~~nine~~six months ended ~~September~~June 30, 2020, respectively. As of January 1, 2019, we had $63 million recorded as deferred revenue on our unaudited condensed consolidated balance sheet, of which $10 million and $56 million were recognized as revenue and $2 million was refunded due to cancellations by travelers during the nine months ended September 30, 2019. During the three months ended September 30, 2019, refunds due to cancellations by travelers were not material. The difference between the opening and closing balances of our deferred revenue primarily results from the timing differences between when we receive customer payments and the time in which we satisfy our performance obligations.

The difference between the opening and closing balances of our contract assets primarily results from the timing difference between when we satisfy our performance obligations and the time when the principal completes the service in the transaction. There

were no significant changes in contract assets or deferred revenue during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020~~2021 and ~~2019~~2020 related to business combinations, impairments, cumulative catch-ups or other material adjustments. However, to the extent the COVID-19 pandemic continues, we may incur additional significant and unanticipated cancellations by consumers related to future travel, accommodations and tour bookings, which have been reserved by travelers and recorded as deferred revenue on our unaudited condensed consolidated balance sheet as of ~~September~~June 30, ~~2020~~.2021.

~~Basic Earnings Per Share Attributable~~For assets and liabilities required to ~~Common Stockholders~~be reported at fair value, GAAP provides a hierarchy that prioritizes inputs to valuation techniques used to measure fair value into three broad levels:

Level 1—Valuations are based on quoted market prices for identical assets and liabilities in active markets.

Level 2—Valuations are based on observable inputs other than quoted market prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3—Valuations are based on unobservable inputs reflecting our own assumptions, consistent with reasonably available assumptions made by other market participants. These valuations require significant judgment.

We ~~compute basic earnings per share,~~had 0 material financial assets or Basic EPS, by dividing net income (loss) by the weighted average number of common shares outstanding during the period. We compute the weighted average number of common shares outstanding during the reporting period using the total of common stock and Class B common stock outstandingliabilities measured at fair value on a recurring basis as of June 30, 2021 and December 31, 2020.

As of June 30, 2021 and December 31, 2020, we had $775 million and $418 million, respectively, of cash and cash equivalents, which consisted of available on demand cash deposits in major global financial institutions.

We generally classify cash equivalents and marketable securities, if any, within Level 1 and Level 2 as we value these financial instruments using quoted market prices (Level 1) or alternative pricing sources (Level 2). The valuation technique we use to measure the ~~last day~~fair value of money market funds is derived from quoted prices in active markets for identical assets or liabilities. Fair values for Level 2 investments are considered “Level 2” valuations because they are obtained from independent pricing sources for identical or comparable instruments, rather than direct observations of quoted prices in active markets. Our procedures include controls to ensure that appropriate fair values are recorded, including comparing the ~~previous year end reporting period plus~~fair values obtained from our independent pricing services against fair values obtained from another independent source.

We generally use forward contracts to reduce the ~~weighted average~~effects of foreign currency exchange rate fluctuations on our cash flows. For the three and six months ended June 30, 2021 and 2020, our forward contracts have not been designated as hedges and generally had maturities of less than 90 days. Our outstanding or unsettled forward contracts are carried at fair value on our unaudited condensed consolidated balance sheets at June 30, 2021 and December 31, 2020. We measure the fair value of our outstanding or unsettled derivatives using Level 2 fair value inputs, as we use a pricing model that takes into account the contract terms as well as current foreign currency exchange rates in active markets. We recognize any ~~additional shares issued and outstanding less the weighted average of any common shares repurchased during the reporting period.~~

~~Diluted earnings per share,~~gain or Diluted EPS, includes the potential dilution of common equivalent shares outstanding that could occur from stock-based awards and other stock-based commitments using the treasury stock method. We compute Diluted EPS by dividing net income (loss) by the sum of the weighted average number of common and common equivalent shares outstanding during the period. We computed the weighted average number of common and common equivalent shares outstanding during the period using the sum of (i) the number of shares of common stock and Class B common stock used in the Basic EPS calculation as indicated above; and (ii) if dilutive, the incremental weighted average common stock that we would issue upon the assumed exercise of outstanding common equivalent shares, primarily related to stock options and the vesting of restricted stock units using the treasury stock method; and (iii) if dilutive, performance-based and market-based awards based on the number of shares that would be issuable as of the end of the reporting period assuming the end of the reporting period was also the end of the contingency period.

~~Under the treasury stock method, the assumed proceeds calculation includes the actual proceeds to be received~~loss resulting from the ~~employee upon exercise~~change in fair value of ~~outstanding equity awards and the average unrecognized compensation cost during the period. The treasury stock method assumes that a company uses the proceeds from the exercise~~our foreign currency forward contracts in other income (expense), net on our unaudited condensed consolidated statement of ~~an equity award to repurchase common stock at the average market price for the reporting period.~~

~~In periods of a net loss, common equivalent shares are excluded from the calculation of Diluted EPS as their inclusion would have an antidilutive effect. Accordingly, for periods in~~operations, which ~~we report a net loss, such as~~was not material for the three and ~~nine~~six months ended ~~September~~June 30, 2021, respectively. This amount was not material for the three months ended June 30, 2020, ~~Diluted EPS is~~while we recorded a net gain of $1 million for the ~~same~~six months ended June 30, 2020 related to forward contracts.

The following table shows the net notional principal amounts of our outstanding derivative instruments as ~~Basic EPS, since dilutive common equivalent shares are not assumed to have been issued if their effect is antidilutive.~~

~~Below is a reconciliation~~ of ~~the weighted average number of shares of common stock outstanding in calculating Diluted EPS (shares in thousands and dollars in millions, except per share amounts) for~~ the periods presented:

~~Potential common shares, consisting~~Counterparties to our outstanding forward contracts consist of major global financial institutions. We monitor our positions and the credit ratings of the counterparties involved and, by policy limits, the amount of credit exposure to any one party. We do not use derivatives for trading or speculative purposes. We were not party to any cash flow, fair value or net investment hedges as of June 30, 2021 or December 31, 2020.

As of June 30, 2021 and December 31, 2020, financial instruments not measured at fair value on a recurring basis including accounts payable, accrued expenses and other current liabilities, and deferred merchant bookings, were carried at cost on our unaudited condensed consolidated balance sheets, which approximates their fair values because of the short-term nature of these items. Accounts receivable and contract assets, on our unaudited condensed consolidated balance sheets, as well as certain other financial assets, were measured at amortized cost and are carried at cost less an allowance for expected credit losses to present the net amount expected to be collected.

The following table shows the aggregate principal and fair value amount of our outstanding ~~stock options, service~~2025 Senior Notes and ~~performance-based restricted stock units (“RSUs”)~~2026 Senior Notes as of the periods presented, which are classified as long-term debt on our unaudited condensed consolidated balance sheets, and ~~market-based restricted stock units (“MSUs”)~~considered Level 2 fair value measurements. Refer to “Note 6: Debt” for additional information related to our 2025 Senior Notes and 2026 Senior Notes.

In addition to the impact of COVID-19, which is discussed in “Note 1: Business Description and Basis of Presentation”, ~~totaling approximately 14.5~~our business is subject to certain financial risks and concentrations, including concentration risk related to dependence on our relationships with our customers. For the year ended December 31, 2020, our two most significant travel partners, Expedia (and its subsidiaries) and Booking (and its subsidiaries), each accounted for 10% or more of our consolidated revenue and combined accounted for 25% of our consolidated revenue, with nearly all of this revenue concentrated in our Hotels, Media & Platform segment.

Financial instruments, which potentially subject us to concentration of credit risk, generally consist, at any point in time, primarily of cash and cash equivalents, corporate debt securities, forward contracts, capped calls, and accounts receivable. We maintain cash and cash equivalents balances with financial institutions that are in excess of Federal Deposit Insurance Corporation insurance limits. Our cash and cash equivalents are primarily composed of bank account balances with financial institutions primarily denominated in U.S. dollars, and to a lesser extent, Euros, British pounds, and Australian dollars. We invest in highly-rated corporate debt securities, and our investment policy limits the amount of credit exposure to any one issuer, industry group and currency. Our credit risk related to corporate debt securities, if any, is also mitigated by the relatively short maturity period required by our investment policy. Forward contracts and capped calls are transacted with major global financial institutions with high credit standings. Forward contracts typically have maturities of less than 90 days, which also mitigates credit risk. Our overall credit risk related to accounts receivable is mitigated by the relatively short collection period.

~~effect would have been antidilutive. In addition, potential common shares~~operations, was not material. During the six months ended June 30, 2021, we recognized $1 million, representing our share of ~~certain performance-based awards~~the investee’s net loss in other income (expenses), net within the unaudited condensed consolidated statements of ~~approximately~~ ~~0.6~~ ~~million shares for~~operations. During both the three and ~~nine~~six months ended ~~September~~June 30, 2020, ~~respectively,~~we recognized $1 million, representing our share of the investee’s net loss in other income (expenses), net within the unaudited condensed consolidated statements of operations. The Company evaluates this investment for impairment when factors indicate that a decline in the value of its investment has occurred and ~~approximately~~ ~~0.7~~ ~~million shares for~~the carrying amount of its investment may not be recoverable. An impairment loss, based on the excess of the carrying value over the estimated fair value of the investment based on Level 3 inputs, is recognized in earnings when an impairment is deemed to be other than temporary. During both the three and ~~nine~~six months ended ~~September~~June 30, ~~2019, respectively, for which all targets required to trigger vesting had~~2021 and 2020, we did 0t record any impairment loss on this equity investment.

The Company maintains various commercial agreements with Chelsea Investment Holding Company PTE Ltd. and/or its subsidiaries. Transactions under these agreements are considered related-party transactions, and were not ~~been achieved, were excluded from~~material during the ~~calculation of weighted average shares used to compute Diluted EPS for those reporting periods.~~three and six months ended June 30, 2021 and 2020.

The ~~earnings per share amounts are~~Company holds collateralized notes (the “Notes Receivable”) with a total principal amount of $20 million from a privately-held company. The Notes Receivable is classified as held-to-maturity, given the ~~same~~Company has concluded it has the positive intent and ability to hold the Notes Receivable until maturity, with 50% due in 5 years and the remaining 50% due in 10 years from issuance date in June 2020. The Company recorded a $3 million allowance for ~~common stock and Class B common stock because~~credit loss under ASC 326 – Financial Instruments – Credit Losses during the ~~holders~~three months ended June 30, 2020 in other income (expense), net on the unaudited condensed consolidated statement of each class are legally entitled to equal per share distributions whether through dividends or in liquidation. In addition, our non-vested RSUs are entitled to dividend equivalents, which will be payableoperations, related to the ~~holder subject to,~~Notes Receivable. As of June 30, 2021 and ~~only upon vesting~~December 31, 2020, the carrying value of the ~~underlying awards~~Notes Receivable was $14 million, net of accumulated allowance for credit losses, and is classified in other long-term assets, net on our unaudited condensed consolidated balance sheets at amortized cost. On a quarterly basis, we perform a qualitative assessment considering impairment indicators to evaluate whether the Notes Receivable are ~~therefore forfeitable. Given such dividend equivalents are forfeitable, we do not consider them~~impaired and monitor for changes to ~~be participating securities~~our allowance for credit losses. We did 0t record any impairment loss during the three and ~~consequently, they are not subject to the two‑class method of determining earnings per share.~~six months ended June 30, 2021.

NOTE 5: ~~STOCK BASED AWARDS~~ACCRUED EXPENSES AND OTHER ~~EQUITY INSTRUMENTS~~CURRENT LIABILITIES

~~The following table presents the amount of stock-based compensation expense related to stock-based awards on our unaudited condensed consolidated statements of operations during the periods presented:~~

We capitalized $4 million and $11 million of stock-based compensation expense as internal-use software and website development costs during the three and nine months ended September 30, 2020, respectively, and $5 million and $14 million during the three and nine months ended September 30, 2019, respectively.

~~A summary of our stock option activity, consisting primarily of service-based non-qualified stock options, during the nine months ended September 30, 2020, is presented below:~~

Aggregate intrinsic value represents the difference between the closing stock price of our common stock and the exercise price of outstanding, in-the-money options. Our closing stock price as reported on Nasdaq as of September 30, 2020 was $19.59. The total intrinsic value of stock options exercised for the nine months ended September 30, 2020 and 2019 was not material and $2 million, respectively.

~~The fair value of stock option grants has been estimated at the date of grant using the Black–Scholes option pricing model with the following weighted average assumptions for the periods presented:~~

~~The total fair value of stock options vested was $12 million and $11 million for the nine months ended September 30, 2020 and 2019, respectively.~~

~~A summary of our RSU activity during the nine months ended September 30, 2020 is presented below:~~

(1) Inclusive of 669,525 RSUs withheld due to net share settlement to satisfy required employee tax withholding requirements. Potential shares which had been convertible under RSUs that were withheld under net share settlement remain in the authorized but unissued pool under the Tripadvisor, Inc. 2018 Stock and Annual Incentive Plan (the “2018 Plan”) and can be reissued by the Company. Total payments for the employees’ tax obligations to the taxing authorities due to net share settlements are reflected as a financing activity within the unaudited condensed consolidated statements of cash flows.

On May 8, 2020, the Company entered into an amendment to the employment agreement (“Amendment”) with Ernst Teunissen, the Company’s Chief Financial Officer and Senior Vice President. The Amendment, among other things, provides for a target payment (“Bonus Award”) in an amount equal to the difference between a maximum payment of $7 million and the aggregate intrinsic value of Mr. Teunissen’s RSU and stock options that vest between May 1, 2020 and May 31, 2022 (the “Target Period”), as measured using the average market price of the Company’s common stock for 10 trading days immediately prior to May 31, 2022. On a quarterly basis, management estimates the Bonus Award and accrues this amount ratably over the Target Period. As of September 30, 2020, we have accrued $1 million for the Bonus Award in other long-term liabilities on the unaudited condensed consolidated balance sheet. The foregoing description of the Amendment does not purport to be complete and is qualified in its entirety by reference to the full text of the Amendment filed as Exhibit 10.9 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2020.

On May 27, 2020 and July 15, 2020, the Compensation Committee of the Board of Directors, approved modifications to the Company’s annual RSU and stock option grants, respectively, issued to its employees in the first quarter of 2020. Such modifications reduced the original grant-date vesting period from four years to two years. We estimate these modifications resulted in the acceleration and recognition of an additional $6 million and $11 million of stock-based compensation expense during the three and nine months ended September 30, 2020, respectively, given the modified vesting term. There was no change to the original fair value of the impacted RSUs or stock options as a result of this modification. This modification did not apply to the RSU and stock option grants to Mr. Teunissen in light of the separate arrangement, as described above.

~~A summary of our MSU activity during the nine months ended September 30, 2020 is presented below:~~

A Monte-Carlo simulation model, which simulated the present value of the potential outcomes of future stock prices and TSR of the Company and the Nasdaq Composite Total Return Index over the performance period, was used to calculate the grant-date fair value of our MSU awards. The estimated grant-date fair value of these awards is being amortized on a straight-line basis over the requisite service period through December 31, 2022.

Total current income tax benefits associated with the exercise or settlement of Tripadvisor stock-based awards held by our employees was $1 million and $14 million during the three and nine months ended September 30, 2020, respectively, and $1 million and $23 million during the three and nine months ended September 30, 2019, respectively.

A summary of our remaining unrecognized stock-based compensation expense and the weighted average remaining amortization period at September 30, 2020 related to our non-vested equity awards is presented below (in millions, except in years information):

~~For assets and liabilities required to be reported at fair value, GAAP provides a hierarchy that prioritizes inputs to valuation techniques used to measure fair value into three broad levels:~~

~~Level 1—Valuations are based on quoted market prices for identical assets and liabilities in active markets.~~

Our cash and cash equivalents consist of cash on hand in global financial institutions available on demand. We had 0 outstanding investments classified as either short-term or long-term marketable securities, as of September 30, 2020 and December 31, 2019, respectively, and no material realized gains or losses related to the sales of any marketable securities during and for the three and nine months ended September 30, 2020 and 2019, respectively.

We classify our cash equivalents and marketable securities within Level 1 and Level 2 as we value these financial instruments using quoted market prices (Level 1) or alternative pricing sources (Level 2). The valuation technique we use to measure the fair value of money market funds is derived from quoted prices in active markets for identical assets or liabilities. Fair values for Level 2 investments are considered “Level 2” valuations because they are obtained from independent pricing sources for identical or comparable instruments, rather than direct observations of quoted prices in active markets. Our procedures include controls to ensure that appropriate fair values are recorded, including comparing the fair values obtained from our independent pricing services against fair values obtained from another independent source.

~~We use forward contracts to reduce the effects~~ of foreign currency exchange rate fluctuations on our cash flows. For the three and nine months ended September 30, 2020 and 2019, respectively, our forward contracts have not been designated as hedges and generally had maturities of less than 90 days. ~~Our outstanding or unsettled forward contracts are carried at fair value on our unaudited condensed consolidated balance sheets.~~ We measure the fair value of our outstanding or unsettled derivatives using Level 2 fair value inputs, as we use a pricing model that takes into account the contract terms as well as current foreign currency exchange rates in active markets. We recognize any gain or loss resulting from the change in fair value of our foreign currency forward contracts in other income (expense), net on our unaudited condensed consolidated statement of operations, which was not material for the three months ended September 30, 2020. We recorded a net gain of $1 million for the nine months ended September 30, 2020 related to our forward contracts. We recorded a net gain of $1 million for both the three and nine months ended September 20, 2019, respectively, related to our forward contracts.

~~The following table shows the notional principal amounts of our outstanding derivative instruments as of the periods presented:~~

Counterparties to our outstanding forward contracts consist of major international financial institutions. We monitor our positions and the credit ratings of the counterparties involved and, by policy limits, the amount of credit exposure to any one party. We do not use derivatives for trading or speculative purposes. We had not entered into any cash flow, fair value or net investment hedges as of September 30, 2020 or December 31, 2019.

~~Other financial instruments not measured at fair value on a recurring basis include accounts receivable and contract assets, accounts payable, deferred merchant payables, accrued~~Accrued expenses and other current liabilities ~~and long-term debt. The carrying amount of these financial instruments, with the exception of long-term debt, approximate their fair value because~~consisted of the ~~short maturity of these instruments as reported on our unaudited condensed consolidated balance sheets as of September 30, 2020 and December 31, 2019, respectively.~~

~~As of September 30, 2020, we estimated the fair value of our outstanding Senior Notes to be approximately $523 million and was considered a “Level 2”~~ ~~fair value measurement.~~ ~~The estimated fair value of the Senior Notes was based on recently reported market transactionsand prices for identical or similar financial instruments obtained from a third-party pricing~~ source. The carrying value of the Senior Notes was $490 million, net of $10 million in debt issuance costs, and classified as long-term debt on our unaudited condensed consolidated balance sheet as of September 30, 2020. Refer to “Note 8: ~~Debt” for additional information on our Senior Notes.~~

~~The Company did not have any material assets or liabilities measured at fair value on a recurring basis using the Level 3 unobservable inputs at both September 30, 2020 and December 31, 2019.~~

Our business is subject to certain financial risks and concentrations, including concentration related to dependence on our relationships with our customers. For the year ended December 31, 2019 our two most significant travel partners, Expedia (and its subsidiaries) and Booking (and its subsidiaries), each accounted for more than 10% of our consolidated revenue and combined

~~accounted for 33%, respectively, of our consolidated revenue, with nearly all of this revenue concentrated in our Hotels, Media & Platform segment.~~

Financial instruments, which potentially subject us to concentration of credit risk at any point in time, generally consist primarily of cash and cash equivalents, corporate debt securities, forward contracts, and accounts receivable. We maintain some cash and cash equivalents balances with financial institutions that are in excess of Federal Deposit Insurance Corporation insurance limits. Our cash and cash equivalents are primarily composed of bank account balances with financial institutions primarily denominated in U.S. dollars, Euros, British pounds, and Australian dollars. We invest in highly-rated corporate debt securities, and our investment policy limits the amount of credit exposure to any one issuer, industry group and currency. Our credit risk related to corporate debt securities is also mitigated by the relatively short maturity period required by our investment policy. Forward contracts are transacted with major international financial institutions with high credit standings, which to date, have typically had maturities of less than 90 days. Our overall credit risk related to accounts receivable is mitigated by the relatively short collection period.

The Company owns a 40% equity investment in Chelsea Investment Holding Company PTE Ltd, which is majority owned by Ctrip Investment Holding Ltd, a majority-owned subsidiary of Trip.com Group Limited. The Company accounts for this investment under the equity method, given it has the ability to exercise significant influence over, but not control, the investee. The carrying value of this equity method investment was $38 million and $41 million as of September 30, 2020 and December 31, 2019, respectively, and is included in non-marketable investments on our unaudited condensed consolidated balance sheet. During the three and nine months ended September 30, 2020, we recognized $1 million and $2 million, respectively, representing our share of the investee’s net loss in other income (expenses), net within the unaudited condensed consolidated statements of operations. The Company evaluates its equity method investment for impairment when factors indicate that a decline in the value of its investment has occurred and the carrying amount of its investment may not be recoverable. An impairment loss, based on the excess of the carrying value over estimated fair value of the investment, is recognized in earnings when an impairment is deemed to be other than temporary. Due to the COVID-19 pandemic, we performed a qualitative assessment to evaluate whether our equity investment is impaired. During the three and nine months ended September 30, 2020, we did 0t record any impairment loss on this equity investment.

The Company has entered into various commercial agreements with Chelsea Investment Holding Company PTE Ltd. and/or its subsidiaries. Transactions under these agreements with the equity method investee are considered related-party transactions, and were not materialfollowing for the ~~three and nine months ended September 30, 2020.~~

We hold investments in equity securities of privately-held companies, which are typically at an early stage of the business cycle and do not have a readily determinable fair value. As of September 30, 2020 and December 31, 2019, the total carrying value of our investments was $2 million and $14 million, respectively, and included in non-marketable investments on our unaudited condensed consolidated balance sheet. In June 2020, the Company redeemed an existing equity investment in a privately-held company with a carrying value of $10 million in return for a collateralized note receivable for the same amount. Refer to section entitled “Other Long-Term Assets” below for additional information.

Our policy is to measure these investments at cost less impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer such observable price changes may include instances where the investee issues equity securities to new investors, thus creating a new indicator of fair value, as an example. On a quarterly basis, we perform a qualitative assessment considering impairment indicators to evaluate whether these investments are impaired and also monitor for any observable price changes. During the three and nine months ended September 30, 2020 and 2019, we did 0t record any impairment loss on these equity investments or note any observable price change indicators.

In June 2020, the Company was issued collateralized notes (the “Notes Receivable”) with a total principal amount of $20 million from a privately-held company, in exchange for an existing equity investment held in the investee by the Company, and other-long term receivables, net, which the Company held due from the same investee. Refer to the section entitled “Investments in Privately-Held Companies” above for further information. The Company has classified the Notes Receivable as held-to-maturity, as the Company has concluded it has the positive intent and ability to hold the Notes Receivable until maturity, with 50% due in 5 years and remaining 50% due in 10 years from issuance date. The Company recorded a $3 million allowance for credit loss under ASC 326 during the nine months ended September 30, 2020, respectively, in other income (expense), net on the unaudited condensed

consolidated statement of operations, related to the Notes Receivable. As of September 30, 2020, the carrying value of the Notes Receivable was $14 million, net of accumulated allowance for credit losses, and is classified in other long-term assets on our unaudited condensed consolidated balance sheet at amortized cost. On a quarterly basis, we perform a qualitative assessment considering impairment indicators to evaluate whether the Notes Receivable are impaired and monitor for changes to our allowance for credit losses.

We assess goodwill, which is not amortized, for impairment annually during the fourth quarter, or more frequently, if events and circumstances indicate impairment may have occurred. We test goodwill for impairment at the reporting unit level. Goodwill is assigned to reporting units that are expected to benefit from the synergies of the business combination as of the acquisition date. Once goodwill has been allocated to the reporting units, it no longer retains its identification with a particular acquisition and becomes identified with the reporting unit in its entirety. Accordingly, the fair value of the reporting unit as a whole is available to support the recoverability of its goodwill. We evaluate our reporting units when changes in our operating structure occur, and if necessary, reassign goodwill using a relative fair value allocation approach.

The Company reorganized its reporting units pursuant to an internal restructuring during the second quarter of 2020. Following the internal restructuring changes, our legacy Dining and Flights/Cruises/Car reporting units were reorganized into 4 new distinct reporting units: (1) TheFork, (2) Tripadvisor Restaurants, (3) Flights & Car, and (4) Cruises, for the purposes of goodwill impairment testing. As a result, we first performed a qualitative assessment on our historical Dining and Flights/Cruise/Car reporting units prior to implementing the revised reporting unit structure and determined that it was more likely than not that the fair value of these reporting units was greater than the carrying value; which was consistent with our conclusion in the fourth quarter of 2019. We then performed a goodwill impairment test for each of the new reporting units using a quantitative assessment. We concluded the estimated fair values were in excess of the carrying values for each of the four new reporting units. We also performed sensitivity analyses, such as calculating estimated fair values using different rates for the weighted-average cost of capital and long-term rates of growth in the income approach and different revenue/income multiples in our market approach and the estimated fair values remained in excess of the carrying values. Therefore, 0 indications of impairment were identified as a result of these changes as of June 30, 2020. In addition, as a result of internal restructuring and the sale of its SmarterTravel business during the second quarter of 2020, our SmarterTravel reporting unit no longer exists. The sale of this business was not a material disposition. This change in reporting units had no impact on the composition of our operating segments, or the information that the CODM reviews to evaluate the financial performance of the Company’s operating segments.

Given the continued economic impact of COVID-19 during the third quarter of 2020, the Company also conducted a qualitative evaluation of relevant events and circumstances that would materially impact the fair value of each of our reporting units as of September 30, 2020. Based on such evaluation, we do not believe it is more likely than not that the fair value of our reporting units are below their respective carrying values as of September 30, 2020, with the exception of our Tripadvisor China reporting unit, as discussed below. As part of this evaluation, it was noted that, as of September 30, 2020, the Company’s market capitalization remained significantly in excess of its book value. The Company also observed its most recently completed goodwill impairment analyses indicated excess fair values over carrying values across our different reporting units. In addition, the Company considered any changes to key inputs used in our previous quantitative analysis’, including reporting unit forecasts, carrying values, and other key inputs, which included targeted sensitivity analysis on previous quantitative assessments, including applying hypothetical rate increases to the weighted average cost of capital used in our income approach analyses given the current COVID-19 environment, and the estimated fair values remained in excess of the carrying values. However, we believe the passage of time will provide new information regarding the expected duration, ultimate impact on consumer behavior, and long-term economic impacts of COVID-19 on the economy as a whole and to our business. The Company’s forecasting process in a COVID-19 environment is resulting in unprecedented challenges, given we are unable to predict the expected duration and ultimate severity of impacts of COVID-19 on the Company’s business. Accordingly, we continue to believe all of our reporting units are at an elevated risk for impairment in future periods. A prolonged decline in the outlook for future revenue and cash flows or other factors, related to COVID-19 or other events, could result in a determination that a non-cash impairment adjustment is required, which could be material. The Company will continue to monitor events and circumstances that may affect the fair value or carrying value of our reporting units.

During the third quarter of 2020, the Company recognized a goodwill impairment charge of $3 million, which represents all of the goodwill allocated to our Tripadvisor China reporting unit. This impairment was driven by a significant reduction in projected cash flows as a result of strategic decisions made by the Company in the third quarter of 2020.

~~The following table summarizes our goodwill activity by reportable segment for the period~~periods presented:

The Company’s outstanding debt consisted of the following for the periods presented:

We are party to a credit agreement with a group of lenders initially entered into in June 2015 (as amended, the “Credit Agreement”), which, among other things, provides for a $500 million unsecured revolving credit facility (the “2015 Credit Facility”) with a maturity date of May 12, 2024. The 2015 Credit Facility, among other things, requires us to maintain a maximum leverage ratio and contains certain customary affirmative covenants and events of default, including a change of control.

We amended the 2015 Credit Facility in May 2020 and December 2020 to, among other things:

~~In June 2015, we entered into a~~ ~~five-year~~ credit agreement with a group of lenders which, among other things, provided for a $1 billion unsecured revolving credit facility (the “2015 Credit Facility”). On May 12, 2017, the 2015 Credit Facility was amended to, among other things, (i) increase the aggregate amount of revolving loan commitments available from $1.0 billion to $1.2 billion; and (ii) extend the maturity date of the 2015 Credit Facility from June 26, 2020 to May 12, 2022 (the “First Amendment”). On May 5, 2020, we amended our 2015 Credit Facility (“Second Amendment”) to, among other things, suspend the leverage ratio covenant on this facility beginning in the second quarter of 2020 and ending prior to September 30, 2021 (or such earlier date as elected by the Company), and replacing it with a minimum liquidity covenant, orDuring the Leverage Covenant Holiday, that requires us to maintain $150 million of unrestricted cash, cash equivalents and short-term investments less deferred merchant payables plus available revolver capacity, which will apply only during the Leverage Covenant Holiday, provide collateral to secure the obligations under the agreement, as well as downsizing its capacity to $1.0 billion from $1.2 billion. No change was made to the existing maturity date of the 2015 Credit Facility of May 12, 2022. The Company may borrow from the 2015 Credit Facility in U.S. dollars, Euros and British pounds. In addition, our 2015 Credit Facility includes $15 million of borrowing capacity available for letters of credit and $40 million for Swing Line borrowings on same-day notice. As of September 30, 2020, we had issued $3 million of outstanding letters of credit under the 2015 Credit Facility.

As of both September 30, 2020 and December 31, 2019, the Company had 0 outstanding borrowings under the 2015 Credit Facility. During the first quarter of 2020, the Company did borrow $700 million under the 2015 Credit Facility. These funds were drawn down as a precautionary measure ~~to reinforce our liquidity position and preserve financial flexibility in light of uncertainty in the global markets resulting from the COVID-19 pandemic.~~ ~~The Company repaid these borrowings in full during the three months ended September 30, 2020. During the timeframe for which the leverage ratio covenant is suspended,~~ any outstanding or future borrowings under the 2015 Credit Facility ~~will~~ bear interest at LIBOR plus a 2.25% margin with a LIBOR floor of 1% per annum. We are required to pay a quarterly commitment fee, at an applicable rate of 0.5%, on the daily unused portion of the revolving credit facility for each fiscal quarter during the ~~timeframe for which the leverage ratio covenant is suspended~~Leverage Covenant Holiday and also additional fees in connection with the issuance of letters of credit. The Company may borrow from the 2015 Credit Facility in U.S. dollars, Euros and British pounds. In addition, our 2015 Credit Facility includes $15 million of borrowing capacity available for letters of credit and $40 million for Swing Line borrowings on same-day notice. As of June 30, 2021, we had issued $4 million of outstanding letters of credit under the 2015 Credit Facility.

As of June 30, 2021 and December 31, 2020, the Company had 0 outstanding borrowings under the 2015 Credit Facility. For both the three and ~~nine~~six months ended ~~September~~June 30, 2021, we recorded total interest expense and commitment fees on our 2015 Credit Facility of $1 million, while for the three and six months ended June 30, 2020, we recorded total interest expense and commitment fees on our 2015 Credit Facility of $2$5 million and $9$6 million, respectively, to interest expense on our unaudited condensed consolidated statement of operations. Total interest and commitment fees recorded on our 2015 Credit Facility was 0t material for the three months ended September 30, 2019 and, for the nine months ended September 30, 2019, we recorded $1 million to interest expense on our unaudited condensed consolidated statement of operations. As of September 30, 2020, unpaid interest and commitment fees on our 2015 Credit Facility totaled $1 million, which is included in accrued expenses and other current liabilities on our unaudited condensed consolidated balance sheet. All unpaid interest and commitment fee amounts as of December 31, 2019 were 0t material. In connection with the Second Amendment, we incurred additional lender fees and debt financing costs totaling $4 million, which were capitalized as deferred financing costs and recorded to other long-term assets on the unaudited consolidated balance sheet. These costs will be amortized over the remaining term of the 2015 Credit Facility, using the effective interest rate method, and recorded to interest expense on our unaudited condensed consolidated statements of operations. ~~The resulting write down of previous deferred financing costs incurred from~~During the ~~First Amendment as a result of~~six months ended June 30, 2020, the ~~Second Amendment was not material.~~

~~There is no specific repayment date prior to the maturity date for any borrowings under this credit agreement. We may voluntarily repay any outstanding borrowing~~Company borrowed $700 million under the 2015 Credit ~~Facility at any time without premium or penalty, other than customary breakage costs with respect~~ Facility. These funds were drawn down as a precautionary measure to ~~Eurocurrency loans. Additionally,~~reinforce the Company’s liquidity position and preserve financial flexibility in light of uncertainty in the global markets resulting from COVID-19 and repaid by the Company believes that the likelihood of the lender exercising any subjective acceleration rights, which would permit the lenders to accelerate repayment of any outstanding borrowings, is remote. As such, we classify any borrowings under this facility as long-term debt. during 2020.

The ~~2015~~ Credit ~~Facility~~Agreement contains a number of covenants that, among other things, restrict our ability ~~to:~~to incur additional indebtedness, create liens, enter into sale and leaseback transactions, engage in mergers or consolidations, sell or transfer assets, pay dividends and distributions, make investments, loans or advances, prepay certain subordinated indebtedness, make certain acquisitions, engage in certain transactions with affiliates, amend material agreements governing certain subordinated indebtedness, and change our fiscal year. The ~~Second Amendment~~Credit Agreement also ~~prohibits~~limits the Company from repurchasing shares of its common stock and paying dividends, among other restrictions, during the Leverage Covenant Holiday. In ~~connection with the Second Amendment and as collateral~~addition, to secure the obligations under the Credit Agreement, the Company and certain subsidiaries have ~~pledged, and~~ granted security interests and liens in and on substantially all of their ~~assets.~~assets as well as pledged shares of certain of the Company’s subsidiaries. ~~The 2015 Credit Facility also requires us to maintain a~~ ~~minimum liquidity covenant and~~ contains certain customary affirmative covenants and events of default, including a change of control. If an event of default occurs, the lenders under the 2015 Credit Facility will be entitled to take various actions, including the acceleration of all amounts due under the 2015 Credit Facility. As of ~~September~~June 30, ~~2020~~2021 and December 31, ~~2019,~~2020, we were in compliance with our ~~debt~~ covenants.

On July 9, 2020, the Company completed the sale of $500 million aggregate principal amount of ~~7.000% senior notes~~7.0% Senior Notes due 2025 (the ~~“Senior~~“2025 Senior Notes”), pursuant to a purchase agreement, dated July 7, 2020, among the Company, the guarantors party thereto ~~(the “Guarantors”)~~ and the initial purchasers party thereto in a private ~~offering.~~offering to qualified institutional buyers. The 2025 Senior Notes were issued pursuant to an indenture, dated July 9, 2020 (the ~~“Indenture”~~“2025 Indenture”), among the Company, the ~~Guarantors~~guarantors and the trustee. The 2025 Indenture provides, among other things, that interest will be payable on the 2025 Senior Notes semiannually on January 15 and July 15 of each year, ~~beginning~~which began on January 15, 2021, until their maturity date of July 15, 2025. The 2025 Senior Notes are senior unsecured obligations of the Company and are guaranteed ~~on a senior unsecured basis~~ by certain of the Company’s domestic subsidiaries.

The Company has the option to redeem all or a portion of the 2025 Senior Notes at any time on or after July 15, 2022 at the redemption prices set forth in the 2025 Indenture, plus accrued and unpaid interest, if any. The Company may also redeem all or any portion of the 2025 Senior Notes at any time prior to July 15, 2022, at a price equal to 100% of the aggregate principal amount thereof plus a make-whole premium and accrued and unpaid interest, if any. In addition, before July 15, 2022, the Company may redeem up to 40% of the aggregate principal amount of the 2025 Senior Notes with the net proceeds of certain equity offerings at the redemption price set forth in the 2025 Indenture, provided that certain conditions are met. Subject to certain limitations, in the event of a Change of Control Triggering Event (as defined in the 2025 Indenture), the Company will be required to make an offer to purchase the 2025 Senior Notes at a price equal to 101% of the aggregate principal amount of the 2025 Senior Notes repurchased, plus accrued and

unpaid interest, if any, to the date of repurchase.These features have been evaluated as embedded derivatives under ~~GAAP,~~GAAP; however, the Company has concluded they do not meet the requirements to be accounted for separately.

~~In the third quarter~~As of ~~2020, the Company used all proceeds from the~~June 30, 2021, unpaid interest on our 2025 Senior Notes ~~to repay a portion of our 2015 Credit Facility outstanding borrowings. As of September 30, 2020, the Company had outstanding debt under the Senior Note of $500~~totaled approximately $16 million ~~which~~and is ~~classified net of $10 million~~included in ~~debt issuance costs, as long-term debt~~accrued expenses and other current liabilities on our unaudited condensed consolidated balance ~~sheet.~~ sheet, and $9 million and $17 million was recorded as interest expense on our unaudited condensed consolidated statement of operations for the three and six months ended June 30, 2021, respectively.

The 2025 Indenture contains covenants that, among other things and subject to certain exceptions and qualifications, restrict the ability of the Company and the ability of certain of its subsidiaries to incur or guarantee additional indebtedness or issue disqualified stock or certain preferred stock; pay dividends and make other distributions or repurchase stock; make certain investments; create or incur liens; sell assets; create restrictions affecting the ability of restricted subsidiaries to make distributions, loans or advances or transfer assets to the Company or the restricted subsidiaries; enter into certain transactions with the Company’s affiliates; designate restricted subsidiaries as unrestricted subsidiaries; and merge, consolidate or transfer or sell all or substantially all of the Company’s assets.

On March 25, 2021, we entered into a purchase agreement for the sale of $300 million aggregate principal amount of 0.25% Convertible 2026 Senior Notes due 2026 (the “2026 Senior Notes”) in a private offering to qualified institutional buyers. The 2026 Senior Notes included of an over-allotment option that provided the initial purchasers of the 2026 Senior Notes with the option to purchase an additional $45 million aggregate principal amount of the 2026 Senior Notes; such over-allotment option was fully exercised. In connection with the issuance of the 2026 Senior Notes, the Company entered into an Indenture, dated March 25, 2021 (the “2026 Indenture”), among the Company, the guarantors party thereto and the trustee. The terms of the 2026 Senior Notes are governed by the 2026 Indenture. The 2026 Senior Notes mature on April 1, 2026, unless earlier converted, redeemed or repurchased. The 2026 Senior Notes are senior unsecured obligations of the Company, although guaranteed by certain of the Company’s domestic subsidiaries, with interest payable semiannually in arrears on April 1 and October 1 of each year, beginning on October 1, 2021.

The 2026 Senior Notes will be redeemable, in whole or in part, at our option at any time, and from time to time, on or after April 1, 2024 and on or before the 30th scheduled trading day immediately before the maturity date, at a cash redemption price equal to the principal amount of the 2026 Senior Notes to be redeemed, plus accrued and unpaid interest, if any, but only if the last reported sale price per share of our common stock exceeds 130% of the conversion price on (1) each of at least 20 trading days, whether or not consecutive, during the 30 consecutive trading days ending on, and including, the trading day immediately before the date we send the related redemption notice; and (2) the trading day immediately before the date we send such notice. In addition, calling any such note for redemption will constitute a make-whole fundamental change with respect to that note, in which case the conversion rate applicable to the conversion of that note will be increased in certain circumstances if it is converted after it is called for redemption.

The 2026 Senior Notes are unconditionally guaranteed, on a joint and several basis, by the guarantors on a senior, unsecured basis. The 2026 Senior Notes are our general senior unsecured obligations and rank equally in right of payment with all of our existing and future senior indebtedness, and senior in right of payment to all of our future subordinated indebtedness. The 2026 Senior Notes will be effectively subordinated to any of our existing and future secured indebtedness, including borrowings under our 2015 Credit Facility and our 2025 Senior Notes, to the extent of the value of the assets securing such indebtedness.

Holders may convert their 2026 Senior Notes under the following conditions at any time prior to the close of business on the business day immediately preceding January 1, 2026 in multiples of $1,000 principal amount, only under the following circumstances:

In addition, holders may convert their 2026 Senior Notes, in multiples of $1,000 principal amount, at their option at any time beginning on or after January 1, 2026, and prior to the close of business on the second scheduled trading day immediately preceding the stated maturity date of the 2026 Senior Notes, without regard to the foregoing circumstances.

The initial conversion rate for the 2026 Senior Notes is 13.5483 shares of common stock per $1,000 principal amount of 2026 Senior Notes, which is equivalent to an initial conversion price of approximately $73.81 per share of common stock, or approximately 4.7 million shares of common stock, subject to adjustment upon the occurrence of certain specified events as set forth in the 2026 Indenture. Upon conversion, the Company may choose to pay or deliver, as the case may be, cash, shares of common stock or a combination of cash and shares of common stock.

The Company accounts for the 2026 Senior Notes as a liability measured at its amortized cost, and no other features of the 2026 Senior Notes are bifurcated and recognized as a derivative. The net proceeds from the issuance of the 2026 Senior Notes were approximately $340 million, net of debt issuance costs of $5 million comprised primarily of the initial purchasers’ discount and the Company used a portion of the proceeds from the 2026 Senior Notes to enter into capped call transactions, as discussed below. The Company intends to use the remainder of the net proceeds from this offering for general corporate purposes, which may include repayment of debt, including the partial redemption and/or purchase of our 2025 Senior Notes prior to maturity. The debt issuance costs will be amortized over the remaining term of the 2026 Senior Notes, using the effective interest rate method, and recorded to interest expense on our unaudited condensed consolidated statements of operations. ~~As of September~~During both the three and six months ended June 30, ~~2020, unpaid~~2021, our effective interest rate, including the debt issuance costs, was approximately 0.60% and interest expense on our 2026 Senior Notes ~~totaled $8~~was not material.

The 2026 Senior Notes are unsecured and do not contain any financial covenants, restrictions on dividends, incurrence of senior debt or other indebtedness, or restrictions on the issuance or repurchase of securities by the Company.

In connection with the issuance of the 2026 Senior Notes, the Company entered into privately negotiated capped call transactions (the “Capped Calls”) with certain of the initial purchasers of the 2026 Senior Notes and/or their respective affiliates and/or other financial institutions (the “Option Counterparties”) at a cost of approximately $35 million. The Capped Calls are separate transactions entered into by the Company with each Option Counterparty, and are not part of the terms of the 2026 Senior Notes and will not affect any noteholder’s rights under the 2026 Senior Notes. Noteholders will not have any rights with respect to the Capped Calls.

The Capped Calls cover, subject to anti-dilution adjustments, substantially similar to those applicable to the conversion rate of the 2026 Senior Notes, the number of shares of common stock initially underlying the 2026 Senior Notes, or up to approximately 4.7 million shares of our common stock. The Capped Calls are expected generally to reduce potential dilution to the common stock upon any conversion of 2026 Senior Notes and/or offset any potential cash payments the Company is required to make in excess of the principal amount of such converted 2026 Senior Notes, as the case may be, with such reduction and/or offset subject to a cap. The strike price of the Capped Calls is $73.81, while the cap price of the Capped Calls will initially be $107.36 per share of our common stock, which represents a premium of 100% over the close price of our common stock of $53.68 per share on March 22, 2021, and is subject to certain customary adjustments under the terms of the Capped Calls.

The Capped Calls are considered indexed to our own stock and are considered equity classified under GAAP, and included ~~in accrued expenses and other current liabilities~~as a reduction to additional paid-in-capital within stockholders’ equity on ~~our~~the unaudited condensed consolidated balance sheet as of June 30, 2021. The Capped Calls are not accounted for as derivatives and ~~was~~their fair value is not remeasured each reporting period. In addition, we recorded ~~as interest expense on our unaudited condensed consolidated statement~~a deferred tax asset of ~~operations for~~$9 million during the three months ended ~~September 30, 2020.~~

~~We were party~~March 31, 2021, as we made an income tax election allowable under Internal Revenue Service (the “IRS”) regulations in order to ~~a $30 million,~~ ~~one-year~~ ~~revolving credit facility with Bank~~recover the cost of ~~America (the “Chinese Credit Facility”)~~the Capped Calls as interest expense for income tax purposes only over the term of ~~December 31, 2019. In June 2020,~~ the ~~Company terminated this credit facility. We had 0 outstanding borrowings under this credit facility at the time of termination or as of December 31, 2019.~~2026 Senior Notes.

Each interim period is considered an integral part of the annual ~~period and,~~period; accordingly, we measure our income tax expense using an estimated annual effective tax rate. An enterprise is required, at the end of each interim reporting period, to make its best estimate of the annual effective tax rate for the full fiscal year and use that rate to provide for income taxes on a current year-to-date basis, as adjusted for discrete taxable events that occur during the interim period.

On March 27, 2020, the U.S. government enacted the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act"). The CARES Act made tax law changes to provide financial relief to companies as a result of the business impacts of COVID-19. Key income tax provisions of the CARES Act include changes in net operating losses (“NOL”) carryback and carryforward rules, increase of the net interest expense deduction limit, and immediate write-off of qualified improvement property. The CARES Act allowed us to carryback our U.S. federal NOL incurred in 2020, generating a $48 million income tax refund, which is recorded in income taxes receivable on our unaudited condensed consolidated balance sheets as of June 30, 2021 and December 31, 2020, respectively, and is expected to be received during 2021. We also reduced our long-term transition tax payable related to the Tax Cuts and Jobs Act of 2017 (the “2017 Tax Act”) by $28 million as a result of the NOL carryback during the year ended December 31, 2020. NOLs incurred

after January 1, 2021 will be carried forward as a deferred tax asset and included in deferred income taxes, net on our unaudited condensed consolidated balance sheet as of June 30, 2021.

In addition, certain governments have passed legislation to help businesses during the COVID-19 pandemic through loans, wage subsidies, wage tax relief or other financial aid. Some of these governments have extended or are considering extending these programs. We have participated in several of these programs, including the CARES Act in the U.S., the United Kingdom's job retention scheme, as well as programs in other jurisdictions. In addition, in certain countries, such as within the European Union, Singapore, Australia, and other jurisdictions, we are also participating in programs where government assistance is in the form of wage subsidies and reductions in wage-related employer taxes paid by us. During the three and six months ended June 30, 2021, we recognized non-income tax related government grants and other assistance benefits of $2 million and $5 million, respectively, of which $4 million in cash has been received as of June 30, 2021. During both the three and six months ended June 30, 2020, we recognized non-income tax related government grants and other assistance benefits of $4 million. These amounts were recorded as a reduction of personnel and overhead costs in our unaudited condensed consolidated statements of operations. As of both June 30, 2021 and December 31, 2020, we had a receivable remaining of $2 million, included in prepaid expenses and other current assets on our unaudited condensed consolidated balance sheet, for payments expected to be received in 2021, which was related to qualified payroll tax credits under the CARES Act.

We recorded total income tax benefits of ~~$10~~$6 million and ~~$48~~$21 million for the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, and total income tax ~~expense~~benefits of ~~$23~~$26 million and ~~$63~~$38 million for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, respectively. The decrease in our income tax ~~expense~~benefit during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, when compared to the same periods in ~~2019,~~2020, was primarily due to a decrease in pretax losses ~~incurred~~recognized during both the three and ~~nine~~six months ended ~~September~~June 30, 2020, respectively, and a tax benefit of $3 million and $22 million during the three and nine months ended September 30, 2020, respectively, from the tax rate differential in tax years applicable to U.S. loss carryforwards that became eligible for carryback under the CARES Act enacted in March 2020, offset by an increase in the recognition of stock-based compensation shortfalls related to the decline in the Company’s common stock price during both the three and nine months ended September 30, 2020, respectively.2021.

Our policy is to recognize accrued interest and penalties related to unrecognized tax benefits and income tax liabilities as part of our income tax expense. As of ~~September~~June 30, ~~2020,~~2021, we had an accrued interest liability of ~~$25~~$37 million ~~net of federal and state benefit,~~included in other long-term liabilities on our unaudited condensed consolidated balance sheet and 0 penalties have been accrued.

By virtue of consolidated income tax returns previously filed with Expedia, we are currently under an IRS audit for the 2009, 2010 and short-period 2011 tax years. We are separately under examination by the IRS for the short-period 2011, 2012 through 2016, and 2018 tax years, ~~under an employment tax audit by the IRS for the 2015 through 2017 tax years,~~ and have various ongoing audits for foreign ~~and~~tax years, as well as state income tax ~~returns.~~audits. These audits include questioning of the timing and ~~the~~ amount of income and deductions and the allocation of income among various tax jurisdictions. These examinations may lead to proposed or ordinary course adjustments to our taxes. We are no longer subject to tax examinations by tax authorities for years prior to 2009. During the three months ended June 30, 2021, we closed an employment tax audit by the IRS for the 2015 through 2017 tax years. As of ~~September~~June 30, ~~2020,~~2021, no material assessments have resulted, except as noted below regarding our 2009, 2010, and 2011 IRS audit with Expedia, ~~and~~ our 2012 through 2016 standalone IRS audit, and our 2012 through 2016 HM Revenue & Customs (“HMRC”) audit.

In January 2017 and April 2019, as part of the IRS audit of Expedia, we received Notices of Proposed Adjustment from the IRS for the 2009, 2010, and 2011 tax years. Subsequently, in September 2019, as part of ~~Tripadvisor’s~~our standalone audit, we received Notices of Proposed Adjustment from the IRS for the 2012 and 2013 tax ~~years,~~years; and in August 2020, we received Notices of Proposed Adjustment from the IRS for the 2014, 2015, and 2016 tax years. These proposed adjustments are related to certain transfer pricing arrangements with our foreign subsidiaries, and would result in an increase to our worldwide income tax expense in an estimated range of ~~$105~~$95 million to ~~$115~~$105 million at the close of the audit if the IRS ~~prevails.~~prevails, which includes $20 million to $30 million related to the 2009 through 2011 pre Spin-Off tax years. The estimated range takes into consideration competent authority relief and transition tax regulations, and is exclusive of deferred tax consequences and interest expense, which would be significant. We disagree with the proposed adjustments and we intend to defend our position through applicable administrative and, if necessary, judicial remedies. Our policy is to review and update tax reserves as facts and circumstances change. Based on our interpretation of the regulations and available case law, we believe the position we have taken with regard to transfer pricing with our foreign subsidiaries is sustainable. In addition to the risk of additional tax for 2009 through 2016 transactions, if the IRS were to seek transfer pricing adjustments of a similar nature for transactions in subsequent years, we would be subject to significant additional tax liabilities. We have requested competent authority assistance under the Mutual Agreement Procedure (“MAP”) for tax years 2009 through ~~2013.~~2016. We expect the competent authorities to present a resolution for the 2009 through 2011 tax years in the near future. Upon receipt, we will assess the resolution provided by the competent authorities as well as its impact on our existing income tax reserves for all open subsequent years.

In ~~July 2015, the United States Tax Court (the “Court”) issued~~January 2021, we received from HMRC an ~~opinion favorable~~issue closure notice relating to ~~Altera~~adjustments for 2012 through 2016 tax years. These proposed adjustments are related to certain transfer pricing arrangements with ~~respect~~our foreign subsidiaries and would result in an increase to ~~Altera’s litigation with the IRS. This opinion was submitted as a final decision under Tax Court Rule 155 during December 2015. The litigation relates to the treatment of stock-based compensation~~our worldwide income tax expense in an ~~inter-company cost-sharing arrangement with~~ ~~Altera’s foreign subsidiary. In its opinion,~~estimated range of $45 million to $55 million, exclusive of interest expense, at the Court accepted Altera’s position of excluding stock-based compensation from its inter-company cost-sharing arrangement. The IRS appealed the Court decision on February 19, 2016. On June 7, 2019, a three-judge panel from the Ninth Circuit Court of Appeals reversed the Court’s decision and upheld the validityclose of the ~~Treasury regulation (Reg. sec. 1.482-7A(d)(2)) requiring stock-based compensation costs~~audit if HMRC prevails. We disagree with the proposed adjustments and we intend to ~~be included~~defend our position through applicable administrative and, if necessary, judicial remedies. Our policy is to review and update tax reserves as facts and

circumstances change. Based on our interpretation of the regulations and available case law, we believe the position we have taken with regard to transfer pricing with our foreign subsidiaries is sustainable.

As of June 30, 2021, with the exception of expected interest payments related to the issuance of our 2026 Senior Notes, as discussed above in “Note 6: Debt”, there have been no material changes to our commitments and contingencies since December 31, 2020. Refer to “Note 13: Commitments and Contingencies,” in the ~~costs shared~~notes to our consolidated financial statements in ~~a cost-sharing arrangement. Based~~Item 8 of our Annual Report on ~~this Ninth Circuit Court of Appeals decision, we recorded a cumulative income tax expense of $15 million during~~Form 10-K for the year ended December 31, ~~2019,~~2020.

In the ordinary course of business, we are party to regulatory and legal matters, including threats thereof, arising out of, or in connection with our operations. These matters may involve claims involving intellectual property rights (including alleged infringement of third-party intellectual property rights), tax matters (including value-added, excise, transient occupancy and accommodation taxes), regulatory compliance (including competition and consumer protection matters), defamation and reputational claims, personal injury claims, labor and employment matters and commercial disputes. Periodically, we review the status of all significant outstanding matters to assess any potential financial exposure. We record the estimated loss in our consolidated statements of operations when (i) it is probable that an asset has been impaired or a liability has been incurred; and (ii) the amount of the loss can be reasonably estimated. We provide disclosures in the notes to the consolidated financial statements for loss contingencies that do not meet both of these conditions if there is a reasonable possibility that a loss may have been incurred that would be material to the consolidated financial statements. We base accruals on the best information available at the time which ~~was~~can be highly subjective. Although occasional adverse decisions or settlements may occur, we do not believe that the final disposition of any of these matters will have a ~~reversal~~material adverse effect on our business. However, the final outcome of ~~income tax benefits taken~~these matters could vary significantly from our estimates. Finally, there may be claims or actions pending or threatened against us of which we are currently not aware and the ultimate disposition of which could have a material adverse effect on us. All legal fees incurred by the Company ~~since~~related to any regulatory and legal matters are expensed in the ~~Court’s 2015 opinion. In November 2019,~~period incurred.

We are under audit by the ~~Ninth Circuit denied Altera’s request~~IRS and various other domestic and foreign tax authorities with regards to income tax and non-income tax matters. We have reserved for potential adjustments that may result from examinations by, or any negotiated agreements with, these tax authorities. Although we believe our tax estimates are reasonable, the final determination of audits could be materially different from our historical tax provisions and accruals. The results of an audit could have a ~~rehearing en banc. On February 10, 2020, Altera filed a certiorari petition with~~material effect on our financial position, results of operations, or cash flows in the ~~Supreme Court, asking it~~period for which that determination is made. Refer to ~~hear an appeal of the Ninth Circuit’s decision. On June 22, 2020, the Supreme Court denied Altera’s request to review the Ninth Circuit decision.~~“Note 7: Income Taxes” for further information on potential contingencies surrounding income taxes.

NOTE ~~10: ACCRUED EXPENSES~~9: STOCK BASED AWARDS AND OTHER ~~CURRENT LIABILITIES~~EQUITY INSTRUMENTS

~~Accrued expenses~~On June 8, 2021, our stockholders approved an amendment to the Company’s 2018 Stock and Annual Incentive Plan (the “2018 Plan”) to, among other ~~current liabilities consisted~~things, increase the aggregate number of shares reserved and available for issuance under the 2018 Plan by 10 million shares. The purpose of this amendment was to provide sufficient reserves of shares of our common stock to ensure our ability to continue to provide new hires, employees and management with equity incentives. As of June 30, 2021, the total number of shares reserved for future stock-based awards under the 2018 Plan was approximately 17 million shares. All shares of common stock issued in respect of the exercise of options, RSUs, or other equity awards have been issued from authorized, but unissued common stock.

The following ~~for~~table presents the amount of stock-based compensation expense related to stock-based awards on our unaudited condensed consolidated statements of operations during the periods presented:

September 30, 2020

December 31, 2019

(in millions)

Accrued salary, bonus, and related benefits

$
31

$
74

Accrued marketing costs

20

27

Accrued interest payable (1)

9

—

Current income tax payables

1

14

Finance lease liability - current portion

5

5

Operating leases liability - current portion

22

20

Restructuring and other related reorganization costs (2)

2

1

Other

58

62

Total

$
148

$
203

	Three months ended						Six months ended
	June 30,						June 30,
	2021			2020			2021			2020
	(in millions)						(in millions)
Cost of revenue	$	—		$	—		$	1		$	1
Selling and marketing		4			4			8			7
Technology and content		13			9			24			20
General and administrative		15			12			28			23
Total stock-based compensation expense		32			25			61			51
Income tax benefit from stock-based compensation		(6	)		(5	)		(11	)		(12	)
Total stock-based compensation expense, net of tax	$	26		$	20		$	50		$	39

We capitalized $3 million and $7 million of stock-based compensation expense as internal-use software and website development costs during the three and six months ended June 30, 2021, respectively, and $4 million and $8 million during the three and six months ended June 30, 2020, respectively.

During the first quarter of 2020, the Company reversed $3 million of previously recorded stock-based compensation expense related to certain performance-based RSUs, as the Company concluded that performance metrics required to be met in order for these awards to fully vest were no longer expected to be achievable, due to the impact of COVID-19 on our business.

During the second quarter of 2020, the Compensation Committee of the Board of Directors approved a modification to the Company’s annual RSU grants issued to its employees in the first quarter of 2020, which consisted of reducing the original grant-date vesting period from four years to two years. This modification resulted in the acceleration and recognition of an additional $5 million of stock-based compensation expense during the three months ended June 30, 2020, given the modified vesting term. There was no change to the original fair value of the impacted RSUs as a result of this modification.

A summary of stock option activity, consisting primarily of service-based non-qualified stock options during the six months ended June 30, 2021, is presented below:

Aggregate intrinsic value represents the difference between the closing stock price of our common stock and the exercise price of outstanding, in-the-money options. Our closing stock price as reported on Nasdaq as of June 30, 2021 was $40.30. The ~~following table summarizes our restructuring and other related reorganization costs~~total

intrinsic value of stock options exercised for the ~~nine~~six months ended ~~September~~June 30, ~~2020:~~2021 was $8 million. This amount was not material for the six months ended June 30, 2020.

The fair value of stock options has been estimated at the date of grant using the Black–Scholes option pricing model with the following weighted average assumptions for the periods presented:

Our stock options generally have a term of ten years from the date of grant and typically vest equally over a four-year requisite service period. We amortize the grant-date fair value of our stock option grants as stock-based compensation expense over the vesting term on a straight-line basis, with the amount of compensation expense recognized at any date at least equaling the portion of the grant-date fair value of the award that is vested at that date. The total fair value of stock options vested was $11 million for both the six months ended June 30, 2021 and 2020, respectively.

A summary of restricted stock units (“RSUs”) activity, consisting primarily of service-based vesting terms, during the six months ended June 30, 2021 is presented below:

We amortize the grant-date fair value of RSUs as stock-based compensation expense over the vesting term, which is typically over a four-year requisite service period on a straight-line basis, with the amount of compensation expense recognized at any date at least equaling the portion of the grant-date fair value of the award that is vested at that date.

A summary of activity for market-based RSUs (“MSUs”) during the six months ended June 30, 2021 is presented below:

Total income tax benefits associated with the exercise or settlement of Tripadvisor stock-based awards held by our employees was $5 million and $14 million during the three and six months ended June 30, 2021, respectively, and $1 million and $13 million during the three and six months ended June 30, 2020, respectively.

A summary of our remaining unrecognized stock-based compensation expense and the weighted average remaining amortization period at June 30, 2021 related to non-vested equity awards is presented below (in millions, except in years information):

On January 31, 2018, our Board of Directors authorized the repurchase of up to $250 million of our shares of common stock under a share repurchase program. This share repurchase program has no expiration date but may be suspended or terminated by our Board of Directors at any time. During the three and six months ended June 30, 2021, the Company did 0t repurchase any shares of outstanding common stock under the share repurchase program. The Company did 0t repurchase any shares of outstanding common stock during the three months ended June 30, 2020 under the share repurchase program. During the six months ended June 30, 2020, we repurchased 4,707,450 shares of our outstanding common stock at an average share price of $24.32 per share, exclusive of fees and commissions, or $115 million in the aggregate. As of ~~September~~June 30, 2021 and December 31, 2020, we had $75 million remaining available to repurchase shares of our common stock under this share repurchase program.

Our Board of Directors authorized and directed management, working with the ~~exception of increased interest expense payments on long-term debt, as a result of the issuance~~Executive Committee of our ~~$500 million Senior Notes with an interest rate~~Board of ~~7.000% per annum due in July 2025, as~~Directors, to affect the share repurchase programs discussed above in ~~“Note 8:~~ ~~Debt”, there have been no material changes outside~~compliance with applicable legal requirements. While the ~~normal course~~Board of ~~business to~~Directors has not suspended or terminated the share repurchase program, the terms of the 2015 Credit Facility currently limit the Company from engaging in share repurchases during the Leverage Covenant Holiday and the terms of our ~~commitments~~2025 Indenture also imposes certain limitations and ~~contingencies since December 31, 2019.~~restrictions on share repurchases. Refer to “Note ~~14:~~6: ~~Commitments and Contingencies~~Debt,” ~~in the notes to our consolidated financial statements in Item 8 of our Annual Report on Form 10-K for the year ended December 31, 2019.~~

In the ordinary course of business, we are party to regulatory and legal matters, including threats thereof, arising out of, or in connection with our operations. These matters may involve claims involving intellectual property rights (including alleged infringement of third-party intellectual property rights), tax matters (including value-added, excise, transient occupancy and accommodation taxes), regulatory compliance (including competition and consumer protection matters), defamation and reputational claims, personal injury claims, labor and employment matters and commercial disputes. Periodically, we review the status of all significant outstanding matters to assess any potential financial exposure. When (i) it is probable that an asset has been impaired or a liability has been incurred; and (ii) the amount of the loss can be reasonably estimated, we record the estimated loss in our consolidated statements of operations. We provide disclosures in the notes to the consolidated financial statements for loss contingencies that do not meet both of these conditions if there is a reasonable possibility that a loss may have been incurred that would be material to the consolidated financial statements. We base accruals on the best information available at the time which can be highly subjective. Although occasional adverse decisions or settlements may occur, we do not believe that the final disposition of any of these matters will have a material adverse effect on our business. However, the final outcome of these matters could vary significantly from our estimates. Finally, there may be claims or actions pending or threatened against us of which we are currently

not aware and the ultimate disposition of which could have a material adverse effect on us. All legal fees incurred by the Company related to any regulatory and legal matters are expensed in the period incurred.

We are under audit by the IRS and various other domestic and foreign tax authorities with regards to income tax and non-income tax matters. We have reserved for potential adjustments that may result from examinations by, or any negotiated agreements with, these tax authorities. Although we believe our tax estimates are reasonable, the final determination of audits could be materially different from our historical tax provisions and accruals. The results of an audit could have a material effect on our financial position, results of operations, or cash flows in the period for which that determination is made. Refer to “Note 9: Income Taxes” for further information ~~on potential contingencies surrounding income taxes.~~about our 2015 Credit Facility and our 2025 Indenture.

We compute basic earnings per share, or Basic EPS, by dividing net income (loss) by the weighted average number of ~~Directors authorized~~common shares outstanding during the ~~repurchase~~period. We compute the weighted average number of ~~our~~common shares outstanding during the reporting period using the total of common stock and Class B common stock outstanding as of the last day of the previous year end reporting period plus the weighted average of any additional shares issued and outstanding less the weighted average of any common shares repurchased during the reporting period.

Diluted earnings per share, or Diluted EPS, includes the potential dilution of common equivalent shares outstanding that could occur from stock-based awards and other stock-based commitments using the treasury stock method. We compute Diluted EPS by dividing net income (loss) by the sum of the weighted average number of common and common equivalent shares outstanding during the period. We computed the weighted average number of common and common equivalent shares outstanding during the period using the sum of (i) the number of shares of common stock ~~under a share repurchase program. This share repurchase program has no expiration date but may be suspended or terminated by our Board of Directors at any time.~~ ~~The Company did 0t repurchase any shares~~and Class B common stock used in the Basic EPS calculation as indicated above; and (ii) if dilutive, the incremental weighted average common stock that we would issue upon the assumed exercise of outstanding common equivalent shares, primarily related to stock options and the vesting of restricted stock units using the treasury stock method; and (iii) if dilutive, performance-based and market-based awards based on the number of shares that would be issuable as of the end of the reporting period assuming the end of the reporting period was also the end of the contingency period.

Under the treasury stock method, the assumed proceeds calculation includes the actual proceeds to be received from the employee upon exercise of outstanding equity awards and the average unrecognized compensation cost during the ~~three and nine months ended September 30, 2019 under~~period. The treasury stock method assumes that a company uses the ~~share~~proceeds from the exercise of an equity award to repurchase ~~program. As~~common stock at the average market price for the reporting period.

In periods of ~~December 31, 2019, we had $190 million remaining available to repurchase~~net income, shares of our common stock ~~under this share repurchase program. The Company did 0t repurchase any shares~~subject to the potential conversion of the 2026 Senior Notes outstanding ~~common stock~~ during the ~~three months ended September 30, 2020~~period is also included in our weighted average number of shares outstanding used to calculate Diluted EPS using the if-converted method under GAAP, as share settlement is presumed. The Capped Calls are excluded from the ~~share repurchase program. During~~calculation of Diluted EPS, as they would be antidilutive. However, upon conversion of the ~~nine months ended September 30, 2020, we repurchased 4,707,450 shares of our outstanding common stock at an average share~~2026 Senior Notes, unless the market price ~~of $24.32 per share, exclusive of fees and commissions, or $115 million in the aggregate. As of September 30, 2020, we had $75 million remaining available to repurchase shares~~ of our common stock ~~under this~~exceeds the cap price, an exercise of the Capped Calls would generally offset any dilution from the 2026 Senior Notes from the conversion price up to the cap price. As of June 30, 2021, the market price of a share ~~repurchase program,~~of our common stock did not exceed the $107.36 cap price.

In periods of a net loss, common equivalent shares are excluded from the calculation of Diluted EPS as their inclusion would have an antidilutive effect. Accordingly, for periods in which we report a net loss, such as for the three and ~~there were 18,844,614~~six months ended June 30, 2021 and 2020, respectively, Diluted EPS is the same as Basic EPS, since dilutive common equivalent shares are not assumed to have been issued if their effect is antidilutive.

Below is a reconciliation of the weighted average number of shares of ~~the Company’s~~ common stock ~~held~~outstanding in ~~treasury with an aggregate cost~~calculating Diluted EPS (shares in thousands and dollars in millions, except per share amounts) for the periods presented:

Potential common shares, consisting of ~~$722 million.~~outstanding stock options, service and performance-based RSUs, MSUs, and those issuable under the 2026 Senior Notes, totaling approximately 16.9 million shares and 17.4 million shares for the three and six months ended June 30, 2021, respectively, and approximately 14.2 million shares and 15.6 million shares for the three and six months ended June 30, 2020, respectively, have been excluded from the calculation of Diluted EPS because their effect would have been antidilutive. In addition, potential common shares from certain performance-based awards of approximately 0.2 million shares for both three and six months ended June 30, 2021, respectively, and approximately 0.7 million shares for both the three and six months ended June 30, 2020, respectively, for which all targets required to trigger vesting had not been achieved, were also excluded from the calculation of weighted average shares used to compute Diluted EPS.

The earnings per share amounts are the same for common stock and Class B common stock because the holders of each class are legally entitled to equal per share distributions whether through dividends or in liquidation. In addition, our non-vested RSUs and MSUs are entitled to dividend equivalents, which will be payable to the holder subject to, and only upon vesting of, the underlying awards and are therefore forfeitable. Given such dividend equivalents are forfeitable, we do not consider them to be participating securities and, consequently, they are not subject to the two‑class method of determining earnings per share.

While the Board of Directors has not suspended or terminated the share repurchase program, the terms of our Second Amendment currently prohibit the Company from engaging in share repurchases and the terms of our Indenture impose certain limitations and restrictions on share repurchases. Refer to “Note 8: ~~Debt” for further information about our Second Amendment and~~ ~~our Indenture~~.

We have 2 reportable segments: (1) Hotels, Media & Platform; and (2) Experiences & Dining. Our Hotels, Media & Platform reportable segment includes the following revenue sources: (1) Tripadvisor-branded hotels revenue – primarily consisting of hotel auction revenue, ~~and to a lesser extent,~~ subscription-based advertising, and hotel sponsored placements ~~revenue, and CPA~~ revenue; and (2) Tripadvisor-branded display and platform revenue – consisting of display-based advertising revenue. Our Experiences & Dining reportable segment includes an aggregation of our Experiences ~~and~~& Dining operating segments. All remaining business units, including Rentals, Flights & Car, and Cruises have been combined into and reported as “Other”, which ~~includes Rentals, Flights & Car, Cruises, and Tripadvisor China,~~does not constitute a reportable segment, as none of these businesses meet the quantitative thresholds and other criteria to qualify as reportable ~~segments, and therefore are combined and disclosed as Other.~~segments. The nature of the services provided and revenue recognition policies are summarized by reported segment in “Note 3: Revenue Recognition.” Our operating segments are determined based on how our chief operating decision maker manages our business, regularly accesses information and evaluates performance for operating decision-making purposes, including allocation of resources.

All direct general and administrative costs are included in the applicable segments and business units; however, all corporate general and administrative costs are included in the Hotels, Media & Platform reportable segment. In addition, the Hotels, Media & Platform reportable segment includes all Tripadvisor-related brand advertising expenses (primarily television advertising), technical infrastructure, and other costs supporting the Tripadvisor platform.

Adjusted EBITDA is our segment profit measure and a key measure used by our management and Board of Directors to understand and evaluate the operating performance of our business and on which internal budgets and forecasts are based and approved. We define Adjusted EBITDA as net income (loss) plus: (1) (provision) benefit for income taxes; (2) other income (expense), net; (3) depreciation and amortization; (4) stock-based compensation and other stock-settled obligations; (5) goodwill, ~~long-lived~~intangible asset, and ~~intangible~~long-lived asset impairments; (6) legal reserves and settlements; (7) restructuring and other related reorganization costs; and (8) non-recurring expenses and income.

The following tables present our segment information for the three and ~~nine~~six months ended ~~September~~June 30, ~~2020~~2021 and ~~2019~~2020 and includes a reconciliation of Adjusted EBITDA to Net ~~Income.~~income (loss). We record depreciation ~~of property and equipment~~ and amortization, ~~of intangible assets,~~ stock-based compensation and other stock-settled obligations, goodwill, ~~long-lived~~intangible asset, and ~~intangible~~long-lived asset impairments, legal reserves and settlements, restructuring and other related reorganization costs, and other non-recurring expenses and

income, net, which are excluded from segment operating performance, in corporate and unallocated. In addition, we do not report our assets, capital expenditures and related depreciation expense by segment as our CODM does not use this information to evaluate operating segments. Accordingly, we do not regularly provide such information by segment to our CODM. Intersegment revenue is not material and is included and eliminated in Other.

	Three months ended September 30, 2020												Three months ended June 30, 2021
	Hotels, Media & Platform (1)		Experiences & Dining		Other (3)		Corporate and Unallocated			Total			Hotels, Media & Platform (1)		Experiences & Dining			Other		Corporate and Unallocated			Total
	(in millions)												(in millions)
Revenue	$	80	$	53	$	18	$	—		$	151		$	156	$	68		$	11	$	—		$	235
Adjusted EBITDA		4		1		10		—			15			33		(12	)		4		—			25
Depreciation and amortization								(30	)		(30	)									(28	)		(28	)
Stock-based compensation								(28	)		(28	)									(32	)		(32	)
Impairment of goodwill								(3	)		(3	)
Operating income (loss)											(46	)												(35	)
Other income (expense), net											(12	)												(11	)
Income (loss) before income taxes											(58	)												(46	)
(Provision) benefit for income taxes											10													6
Net income (loss)											(48	)												(40	)

	Nine months ended September 30, 2020													Three months ended June 30, 2020
	Hotels, Media & Platform (1)		Experiences & Dining			Other (3)		Corporate and Unallocated			Total			Hotels, Media & Platform (2)			Experiences & Dining			Other			Corporate and Unallocated			Total
	(in millions)													(in millions)
Revenue	$	287	$	150		$	51	$	—		$	488		$	38		$	14		$	7		$	—		$	59
Adjusted EBITDA		25		(56	)		13		—			(18	)		(33	)		(38	)		(3	)		—			(74	)
Depreciation and amortization									(94	)		(94	)											(32	)		(32	)
Stock-based compensation									(80	)		(80	)											(25	)		(25	)
Restructuring and other related reorganization costs									(42	)		(42	)											(33	)		(33	)
Impairment of goodwill									(3	)		(3	)
Operating income (loss)												(237	)														(164	)
Other income (expense), net												(28	)														(15	)
Income (loss) before income taxes												(265	)														(179	)
(Provision) benefit for income taxes												48															26
Net income (loss)												(217	)														(153	)

	Nine months ended September 30, 2019													Six months ended June 30, 2021
	Hotels, Media & Platform (2)		Experiences & Dining			Other (3)		Corporate and Unallocated			Total			Hotels, Media & Platform (1)		Experiences & Dining			Other		Corporate and Unallocated			Total
	(in millions)													(in millions)
Revenue	$	746	$	346		$	133	$	—		$	1,225		$	245	$	95		$	18	$	—		$	358
Adjusted EBITDA		306		(1	)		42		—			347			30		(35	)		4		—			(1	)
Depreciation and amortization									(92	)		(92	)									(57	)		(57	)
Stock-based compensation									(91	)		(91	)									(61	)		(61	)
Operating income (loss)												164													(119	)
Other income (expense), net												9													(22	)
Income (loss) before income taxes												173													(141	)
(Provision) benefit for income taxes												(63	)												21
Net income (loss)												110													(120	)

Refer to “Note 6:4: Financial Instruments and Fair Value Measurements” under the section entitled “Risks and Concentrations” for information regarding our major customer concentrations.

Other income (expense), net, consists of the following for the periods presented:

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

The information included in this Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with our unaudited condensed consolidated financial statements and the accompanying notes included in this Quarterly Report on Form 10-Q, and the consolidated financial statements and accompanying notes, as well as Management’s Discussion and Analysis of Financial Condition and Results of Operations contained in our Annual Report on Form 10-K for the year ended December 31, ~~2019.~~2020.

This Quarterly Report on Form 10-Q contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect the views of our management regarding current expectations and projections about future events and are based on currently available information. Actual results could differ materially from those contained in these forward-looking statements for a variety of reasons, including, but not limited to, those discussed in ~~this Quarterly~~our Annual Report on Form ~~10-Q~~10-K for the ~~three and nine months~~year ended ~~September 30,~~December 31, 2020, Part ~~II,~~I, Item 1A, “Risk Factors,.” as well as those discussed elsewhere in this report. Other unknown or unpredictable factors also could have a material adverse effect on our business, financial condition and results of operations. Accordingly, readers should not place undue reliance on these forward-looking statements. The use of words such as “anticipates,” “estimates,” “expects,” “intends,” “plans” and “believes,” among others, generally identify forward-looking statements; however,

these words are not the exclusive means of identifying such statements. In addition, any statements that refer to expectations, projections or other characterizations of future events or circumstances are forward-looking statements. These forward-looking statements are inherently subject to uncertainties, risks and changes in circumstances that are difficult to predict. We are not under any obligation to, and do not intend to, publicly update or review any of these forward-looking statements, whether as a result of new information, future events or otherwise, even if experience or future events make it clear that any expected results expressed or implied by those forward-looking statements will not be realized. Please carefully review and consider the various disclosures made in this report and in our other reports filed with the SEC that attempt to advise interested parties of the risks and factors that may affect our business, prospects and results of operations.

Tripadvisor is the world’s largest ~~online~~ travel ~~site,~~guidance platform, as measured by ~~average~~monthly unique ~~monthly visitors.~~users. As a result, Tripadvisor represents an attractive platform for travel partners – including hotel chains, independent hoteliers, OTAs, destination marketing organizations, and other travel-related and non-travel related product and service providers – who seek to market and sell their products and services to a global audience. Tripadvisor’s platform and product offerings enable consumers to discover, research and price shop a variety of travel products, including hotels, flights, cruises, cars, vacation rental properties, tours, travel activities and experiences, and restaurants; and book a number of these travel experiences either directly on our websites or mobile apps, or on our travel partners’ websites or mobile apps. ~~Key drivers of our financial results are described below, including current trends affecting our business, and our segment reporting information.~~

In ~~2019,~~January 2021, Phocuswright, an independent travel, tourism and hospitality research firm, estimated that the annual global travel market (not including dining) will reach ~~$1.7~~$1.4 trillion of bookings in ~~2022 and~~ 2022. Given we have the world’s largest travel audience, we believe that Tripadvisor’s influence in the travel ecosystem remains significant. Our long-term growth strategy aims to increase ~~revenue by deepening~~ customer engagement on our platform ~~by pursuing the following key strategies, including:~~and drive profitable growth through:

The online travel industry in which we operate is large and also highly dynamic and competitive. Our overall strategy is to deliver more value to consumers and travel partners in order to generate more monetization on our platform. While we operate with a long-term growth focus, our specific growth objectives and resource allocation strategies can differ in both duration and magnitude within our ~~reportable~~ segments. We describe these dynamics, as well as the current trends affecting our overall business and reportable segments, key drivers of our financial results, and uncertainties that may impact our ability to execute on our objectives and strategies, below.

The COVID-19 pandemic has caused a significant negative impact on the travel, leisure, hospitality, and restaurant ~~and leisure industry~~industries (collectively, the “travel industry”), and consequently adversely and materially affected our business, results of operations, liquidity and financial condition during the three and ~~nine~~six months ended ~~September~~June 30, 2021 and 2020, as well as throughout the year ended December 31, 2020. Among other impacts, COVID-19 has negatively impacted global consumer travel demand and consumers’ ability to travel and take part in other travel, leisure, and dining activities, thereby ~~resulting in~~causing many of our travel partners ~~operating~~to operate at significantly reduced service levels. ~~The adverse impact~~

Commencing in late February 2020 and progressively worsening through March 2020, we experienced a significant decline in user demand for our products and services as well as an increase in customer cancellations, concurrent with widespread travel restrictions imposed by governments and businesses in response to ~~our business from~~the COVID-19 ~~intensified in~~pandemic. In the second half of March driven by the pandemic’s proliferation and increased governmental restrictions and mandates globally that additionally impacted the travel, hospitality, restaurant, and leisure industry and further dampened consumer demand for our products and services. I~~n the second half of March~~2020 and throughout April 2020, significant year-over-year revenue declines generally stabilized across the Company’s segments and products, a trend which generally continued throughout the second quarter of 2020, ~~and~~although modestly improved during the third quarter of ~~2020~~. The three months ended September 30, 2020 consolidated revenue was approximately 35 % of the prior year’s comparable period, while the three months ended June 30, 2020 consolidated revenue was approximately 14% of the prior year’s comparable period~~, respectively~~.~~Sequential monthly performance improved as well, as July 2020 revenue was approximately 30% of~~ ~~the prior~~ ~~year’s comparable period, while August 2020 and September 2020 revenue were approximately 40% of~~ ~~the prior~~ ~~year’s comparable periods, respectively. This trend compares favorably to the trends observed in months of April 2020 and May 2020, where revenue for those months were approximately 10% of~~ ~~the prior~~ ~~year’s comparable periods, respectively.~~ ~~In addition,~~ ~~traffic trends on our websites have improved since the significant declines seen in the second half of March and throughout April~~ 2020. In the individual months of July, August, and September of 2020, monthly unique users on Tripadvisor websites were approximately 67%, 73%, and 74% of the prior year’s comparable periods, respectively, while in April, May, and June of 2020, monthly unique users on Tripadvisor websites were approximately 33%, 45%, and 60% of the prior year’s comparable periods, respectively. While our revenue and traffic trends generally improved sequentially each month since May 2020 through August 2020, these trends began to flatten out in September 2020, and ~~beginning~~Beginning in the fourth quarter of 2020, governments again, particularly in Europe, began to impose new restrictions to mitigate the spread of the virus, which ~~we expect~~again negatively impacted trends. The adverse impact to our business from COVID-19 was significant, albeit unevenly at different points in time and in different geographies throughout 2020. These adverse impacts continued to negatively impact ~~these recent trends.~~

~~We have also incurred significant~~the travel industry and ~~unanticipated cancellations by travelers related~~dampen consumer demand for our products and services throughout the first half of 2021, although to ~~future travel, accommodations and tour bookings~~a materially lesser extent in the ~~post-COVID-19 timeframe, which had~~second quarter of 2021 as the travel industry broadened its recovery. This adverse impact has been ~~reserved~~driven by ~~travelers in~~ the pre-COVID-19 timeframe, which included a significant number of bookings recorded as deferred revenue on our consolidated balance sheet as of December 31, 2019. While cancellations moderated during the three months ended September 30, 2020, future trends remain uncertain. During the course of 2020, we have worked with travelerspandemic’s proliferation, intermittent containment and ~~travel partners to address cancellations, re-bookings, and in certain cases we have provided our travel partners extended payment terms, discounts and other incentives.~~

~~While we have seen varying degrees of containment~~resurgence of the virus, and new variants of the virus introduced throughout the world, followed by travel restrictions and other mandates put in ~~certain countries~~place, lifted and/or reinstated at different timeframes during 2020 and ~~some signs~~2021 by local governments to mitigate the spread of the virus. As such, the travel industry’s recovery from the ~~degree of containment~~COVID-19 pandemic has been varied and ~~the recovery in travel has varied~~uneven region-to-region ~~globally,~~on a global basis, as well as state-to-state in the U.S.

In the fourth quarter of 2020, multiple COVID-19 vaccines were approved for widespread distribution throughout various parts of the world, including the United States and Europe, and in the first quarter of 2021, vaccination distribution programs were initiated around the world. Vaccine programs in our largest markets, the U.S and Europe, appear to be progressing well, and we expect the same for much of the rest of the world. We are encouraged by these developments, although the timing and extent of widespread vaccine distributions on a global basis, and efficacy against recent variants (e.g., the Delta variant) and ~~there have been instances where cases~~any future variants of COVID-19 ~~have started to increase again after a period of decline.~~ ~~We do not have visibility into when remaining bans will be lifted, where additional bans may be initiated, or where bans that have been previously lifted are reinstated due to resurgence~~remains unclear. In addition, the ultimate duration of the ~~virus, nor do we have forward-looking visibility into~~negative impact of COVID-19 on our results of operations, liquidity and financial condition remains uncertain and is dependent upon factors beyond our control, such as the ~~short~~ continued transmission rate of COVID-19, including any variants and/or ~~long-term changes to~~additional resurgences, if any, the extent and effectiveness of containment actions taken, vaccine efficacy, and the ultimate impact of these and other factors on consumer demand for travel and usage patterns on our ~~platform or travel behavior patterns when travel bans and other government restrictions and mandates are fully lifted,~~ ~~or the timing of development and widespread availability of a vaccine. We believe~~platform. Although uncertainty remains, we continue to be optimistic that the travel ~~industry and our business~~market will continue to improve as 2021 progresses, driven by vaccination programs and what we believe to be significant pent-up consumer demand for travel industry services.

Traffic trends on our websites, a leading indicator of consumer demand, have improved since the trough of significant declines seen in the second half of March 2020 and throughout April 2020, as monthly unique users on Tripadvisor-branded websites for April

2020 were approximately 33% of the comparable period in 2019. By means of showing a comparison to a pre-COVID-19 timeframe, monthly unique users on Tripadvisor-branded websites improved sequentially and year-over-year during the second quarter of 2021, as April, May, and June were approximately 59%, 71%, and 79%, respectively, of 2019’s comparable periods, driven by vaccine progress, various government restrictions being gradually lifted during the second quarter of 2021, and consumer travel demand’s improving recovery. In addition, monthly unique users on Tripadvisor-branded websites during the second quarter of 2021 increased to approximately 70% of 2019’s comparable period, in comparison to approximately 55% of 2019’s comparable period during the first quarter of 2021. This improvement was seen in both the U.S. and European markets, with U.S. monthly unique users in June 2021 at nearly 85% of the June 2019 level, up from nearly 80% of the April 2019 level, while monthly unique users in Europe exceeded 90% of the June 2019 level in June 2021, up from nearly 60% of the April 2019 level in April 2021. We saw notable strength in key markets of France, Italy, Germany, and Spain, some of our largest countries beyond the U.S. and U.K. In these countries, monthly unique users nearly reached 95% of the June 2019 level in June 2021, up from nearly 40% of the April 2019 level in April 2021 and in the UK, monthly unique users were approximately 70% of the June 2019 level in June 2021, up from nearly 45% of the April 2019 level in April 2021, concurrent with various government restrictions being gradually lifted during the second quarter of 2021 in the European marketplace. However, monthly unique users in June 2021 in the rest of the world were approximately 55% of the June 2019 level, which, although improving, lagged behind the traffic recovery trends underway in the U.S. and Europe, and continued to be negatively and materially ~~and adversely affected while such travel~~impacted by government restrictions ~~remain~~put in place aimed to mitigate the spread of the virus throughout the second quarter of 2021.

Our consolidated revenue for the three and ~~COVID-19 continues~~six months ended June 30, 2021 was $235 million, or an increase of 298%, and $358 million, or an increase of 6%, respectively, when compared to ~~proliferate.~~ the same periods in 2020. Consistent with the improvement in our traffic trends and consumer demand noted above, consolidated revenue for the three months ended June 30, 2021 increased 91% when compared to consolidated revenue for the three months ended March 31, 2021. In addition, by means of showing a comparison to a pre-COVID-19 timeframe, consolidated revenue during second quarter of 2021 was 56% of 2019’s comparable period, and also showed improvement as the quarter progressed on a month-to-month basis as consolidated revenue for June 2021 was approximately 66% of consolidated revenue for June 2019 when compared to consolidated revenue for the months of April 2021 and May 2021 being approximately 46% and 53% of consolidated revenue for April 2019 and May 2019. This increase in revenue was driven largely by continued strength in the U.S. marketplace, but also due to improvement in Europe, where revenue began accelerating in May 2021 and June 2021, reflecting a broadening travel industry recovery.

Although we cannot predict with certainty the full impact of the COVID-19 pandemic on our ~~fourth quarter 2020~~full year 2021 financial results, we currently expect that ~~our fourth quarter 2020 financial results~~the pandemic will continue to ~~be negatively impacted by the pandemic to~~have a material, ~~degree.~~

~~In addition, the ultimate extent of the COVID-19 pandemic and its~~negative impact on ~~travel, regional and global markets, and overall economic activity in currently affected countries and globally is unknown and difficult~~our third quarter 2021 financial results, which we expect to predict. Therefore, the ultimate extent and duration of the impact of the COVID-19 pandemic on our business, results of operations, liquidity and financial condition remains largely uncertain and dependent on future developments that cannot be accurately predicted at this time, suchlessen as the resurgence and severity of the virus, continued transmission rate of COVID-19, the timing and widespread availability of a vaccine, the extent and effectiveness of containment actions taken, including mobility and travel restrictions, and the impact of these and other factors on consumer travel behavior.2021 progresses.

In response to the impact of the COVID-19 pandemic, we ~~have taken~~took several steps to further strengthen our financial position and balance sheet and maintain financial liquidity and flexibility, including, but not limited to, restructuring activities, ~~primarily by significantly~~ reducing our ongoing operating expenses and ~~headcount; borrowing $700 million from~~headcount, additional borrowings of debt, and amendments to our 2015 Credit Facility, in the first quarter of 2020 (subsequently repaid during the third quarter of 2020); amending our 2015 Credit Facility, which included short-term financial covenant relief; and raising additional financing through the issuance of $500 million in Senior Notes by the Company in July 2020, all of which are described in more detail below.

During the first quarter of 2020, we borrowed $700 million ~~from our~~under the 2015 Credit Facility as a precautionary measure to reinforce our liquidity position and preserve financial flexibility in light of uncertainty in the global markets resulting from ~~the COVID-19 pandemic.~~COVID-19. We repaid these borrowings ~~during~~in full in the ~~three months ended September 30, 2020.~~third quarter of 2020 using proceeds from our 2025 Senior Notes, noted below. In addition, ~~in May~~during 2020, ~~we amended~~by means of amendments to our 2015 Credit Facility, ~~the Second Amendment,~~we were able to secure, among other things, ~~suspend~~covenant relief in the form of suspending our leverage ratio covenant, until the earlier of the first day after June 30, 2021 through maturity on which borrowings and other revolving credit utilizations under the revolving commitments exceed $200 million, or such earlier date as we may elect, when the leverage ratio covenant ~~for each fiscal quarter ending after~~will then be reinstated. We also extended the ~~effective~~maturity date of this facility to May 2024.

In July 2020, we completed the ~~Second Amendment and ending~~sale of $500 million aggregate principal amount of senior notes in a private offering, our 2025 Senior Notes, at 7.0% per annum with a maturity date of July 15, 2025. We used the net proceeds received of $490 million, net of debt issuance costs, to repay a portion of our 2015 Credit Facility borrowings, noted above.

In addition, during March 2021, we completed the sale of $345 million aggregate principal amount of senior notes in a private offering, our 2026 Senior Notes, at 0.25% per annum with a maturity date of April 1, 2026. Concurrently, we used a portion of the proceeds received from the 2026 Senior Notes to enter into privately negotiated capped call transactions with certain of the initial purchasers of the 2026 Senior Notes and/or their respective affiliates and/or other financial institutions at a cost of approximately $35 million. The Company intends to use the remainder of the net proceeds from this offering for general corporate purposes, which may include repayment of debt, including the redemption and/or purchase of a portion of its 2025 Senior Notes prior to ~~September 30, 2021, and replace it with a minimum liquidity covenant, as well as downsize its capacity to $1.0 billion from $1.2 billion.~~ maturity.

We believe ~~this~~these measures provide us additional flexibility ~~will be~~which we believe is important given our continued limited ability to predict our future financial performance due to the uncertainty associated with ~~the continued proliferation of COVID-19, consumer behavior, and potential restrictive measures implemented by governments in response to COVID-19~~.

~~In addition, in~~ July 2020, the Company completed the sale of $500 million aggregate principal amount of Senior Notes in a private offering. The Indenture pursuant to which the Senior Notes were issued provides, among other things, that interest will be payable on the Senior Notes at 7.000% per annum, on January 15 and July 15 of each year, beginning on January 15, 2021, until their maturity date of July 15, 2025. The Company used the net proceeds received of $490 million, net of debt issuances costs, to repay a portion of our 2015 Credit Facility borrowings.COVID-19.

Refer to “Note 8:6: Debt” in the notes to ~~our~~the unaudited condensed consolidated financial statements in Item 1 inon this Quarterly Report on Form 10-Q for further detailed information about our ~~Second Amendment~~2015 Credit Facility, 2025 Senior Notes, and 2026 Senior Notes.

During the first quarter of 2020, the Company instituted a cost reduction initiative to preserve cash flows, including targeted workforce reduction measures largely in the Experiences ~~and~~& Dining segment, in addition to optimizing and reducing brand advertising as the Company ~~pivots~~pivoted to leverage newer ~~and expectantly~~advertising mediums we believe will be more effective ~~mediums to~~than our historically television-focused campaign.

InDuring the latter part of the first quarter of 2020, and in response to ~~the financial impact to the Company from~~ the COVID-19 pandemic, the Company instituted additional cost reduction measures, ~~during the latter part of the first quarter of 2020, which included~~including the elimination of the majority of discretionary spending, business travel and non-critical vendor relationships, brand advertising, as well as the temporary cessation of nearly all new hiring and contingent staff, reduction of targeted employee benefits and the ~~furloughing~~furlough of over 100 employees.

On April 28, 2020, management approved and the Company announced an additional cost reduction initiative in response to the continued economic and financial impacts ~~to the Company as a result of~~resulting from the COVID -19 pandemic, which included the following:

~~As of September 30, 2020, the majority of the Company’s previously furloughed employees have returned to their jobs.~~

The Company incurred total pre-tax restructuring and other related reorganization costs of approximately $33 million and $42 million during the ~~nine~~three and six months ended ~~September~~June 30, 2020, respectively, as a result of these measures. Such costs were recorded on our unaudited condensed consolidated statement of operations and fully paid by the Company during 2020.

Later in 2020, nearly all of the Company’s previously furloughed employees had returned to their jobs; however, during the fourth quarter of 2020, the Company again furloughed approximately 400 employees, primarily in our European operations of TheFork. This action was taken by the Company as a direct result of the reinstatement of government restrictions related to restaurants in various countries within Europe in response to a resurgence of COVID-19 in those markets. As of June 30, 2021, nearly all of the Company’s previously furloughed employees had returned to their jobs.

We have continued to maintain a majority of these cost-reductions measures during the first half of ~~which $2 million remains unpaid as~~2021 and expect the majority of ~~September 30, 2020.~~ these costs saving to continue for the remainder of fiscal 2021.

In March 2020, the U.S. government enacted the CARES ~~Act. The CARES~~ Act, is an emergency economic stimulus package enacted in response to the COVID-19 pandemic, which ~~among other things, contains~~includes numerous income tax ~~provisions. Some~~provisions, some of ~~these~~which are effective retroactively. During the three and six months ended June 30, 2021, the Company did not record any income tax ~~provisions are effective retroactively for fiscal years ended before~~benefit under the ~~date of enactment. We anticipate that we will benefit from~~

~~certain of these provisions, and have accordingly recorded income tax benefits of $3 million and $22 million~~CARES Act; however, during the three and ~~nine~~six months ended ~~September~~June 30, 2020, ~~respectively.~~ the Company recorded an income tax benefit of $5 million and $19 million, respectively, as a result of a loss carryback provision provided under the CARES Act.

In addition, certain governments have passed legislation to ~~help~~assist businesses during the COVID-19 pandemic through loans, wage subsidies, wage tax relief or other financial ~~aid, and some of these~~aid. Some governments have extended or are considering extending these programs. The Company has participated in several of these programs, including the CARES Act in the U.S., the United Kingdom's job retention scheme, as well as ~~certain~~ other jurisdictions' programs. During the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, we recognized non-income tax related government grants and other assistance benefits of $3$2 million and ~~$10~~$5 million, respectively, while during both the three and six months ended June 30, 2020, we recorded non-income tax related government grants and other assistance benefits of $4 million as a reduction of personnel and overhead costs in the unaudited condensed consolidated ~~statements~~statement of operations.

For ~~further details of the~~additional information on income ~~tax and~~taxes and/or other benefits recorded by the Company under the CARES Act and other governmental relief programs, refer to ~~the section~~ ~~Risks and Uncertainties~~ in “Note ~~1: “Business Description and Basis of Presentation” and “Note 9:~~7: Income Taxes” in the notes to our unaudited condensed consolidated financial statements in Item 1 inon this Quarterly Report on Form 10-Q.

InOur Hotels, Media & Platform segment is comprised of: Tripadvisor-branded hotels revenue and Tripadvisor-branded Display and Platform Revenue.

Tripadvisor-branded hotels revenue primarily includes hotel auction revenue and, to a lesser extent, hotel B2B revenue, which primarily includes subscription-based advertising services that we offer to travel partners and click-based revenue generated from hotel sponsored placement advertising that enables hotels to enhance their visibility on Tripadvisor hotel pages. Tripadvisor-branded Display and Platform Revenue primarily includes impression-based advertising revenue.

Our overall strategic objective in our Hotels, Media & Platform segment ~~our strategic objective~~ is to preserve profit ~~and drive~~while driving increased customer engagement and monetization on the Tripadvisor platform. We seek to achieve this by delivering consumers compelling products and a holistic user experience, as well as by offering travel partners a diverse set of advertising opportunities.

For consumers, we test and implement product enhancements that deliver a more engaging and comprehensive hotel shopping experience. This includes providing rich, immersive content – reviews, photos, videos and ratings, among other contributions, ~~– as well as~~ increasing the number of travel partners and properties as well as the available hotel supply on our platform. We believe providing consumers tools to discover, research, price shop and book a comprehensive selection of accommodations helps increase brand awareness and brand loyalty and, over time, can result in deeper consumer engagement, more qualified leads delivered to travel partners and greater monetization on our platform.

We seek to monetize our influence through hotel-related product improvements, supply and marketing efforts and customer advertising opportunities. Historically, we have generated a significant amount of hotel shoppers from search engines, such as Google. A hotel shopper is a visitor to our sites that views either a listing of hotels in a city or a specific hotel page. Our key ongoing objective related to traffic acquisition is to attract or acquire hotel shoppers at or above our desired marketing return on investment targets. Over the long-term, we are focused on driving a greater percentage of our traffic from direct traffic sources rather than search engines, which comes with little to no traffic acquisition costs. Our business, including the Hotels, Media & Platform segment’s financial results, have been adversely and materially impacted by the COVID-19 pandemic, which was the primary and material driver of this segment’s unfavorable results during the three and nine months ended September 30, 2020 as

As noted in the “COVID-19” discussion ~~above.~~above, during the three and six months ended June 30, 2021, easing of travel restrictions across the world, rising vaccination rates, and an increase in consumer travel demand drove improved financial results. U.S. markets continued the steady improvement which we experienced in the latter half of the first quarter of 2021 and Europe consumer travel demand recovery accelerated in May 2021 and June 2021. For example, and by means of showing a comparison to a pre-COVID-19 timeframe, our U.S. hotel shoppers reached approximately 90% of 2019 levels in the second quarter of 2021, an increase from approximately 70% of 2019 levels in the first quarter of 2021, and European hotel shoppers were nearly 75% of 2019 levels in the second quarter of 2021, an increase from approximately 45% of 2019 levels in the first quarter of 2021. Our total hotel auction revenue reached approximately 80% of June 2019 revenue in June 2021, up from approximately 50% of April 2019 revenue in April 2021. Our U.S. hotel auction revenue during the second quarter of 2021 nearly reached parity with the second quarter of 2019 revenue and, in June 2021, grew by more than 15% over June 2019 revenue on continued strong consumer travel demand. In addition, our U.S. hotel auction CPC rates regained 2019 levels in early May 2021 and remained at or above 2019 levels for the same time period through June 2021, demonstrating strong partner engagement on our platform as consumer travel demand recovers in the U.S. Although lagging the U.S. revenue trend, Europe and the rest of the world hotel auction revenue also showed improvement during ~~this period,~~the second quarter of 2021 when compared to the first quarter of 2021. As a result of these positive trends noted above, we ~~continued~~increased our performance marketing investment during the second quarter of 2021 in correlation with the increase in consumer demand.

In addition, and by means of showing a comparison to ~~experience~~a pre-COVID-19 timeframe, Tripadvisor-branded display and platform revenue ~~headwinds~~improved as a percentage of 2019 levels throughout the first half of 2021, and reached approximately 70% of June 2019 revenue in June 2021, primarily driven by an increase in marketing spend from our ~~SEO marketing channel, which~~advertisers in correlation with increasing consumer travel demand, as discussed above.

Over the long-term, we believe ~~was impacted by search engines (primarily Google) increasing the prominence of their own hotel products in search results and expect this trend~~that improving our offerings to ~~continue post-COVID-19. During the third quarter of 2020, our Hotels, Media & Platform segment continued to demonstrate~~ ~~modest month-over-month performance~~ improvements as noted in the “COVID-19” discussion above; however, beginning in the fourth quarter of 2020, governments again, particularly in Europe, began to impose new restrictions to mitigate the spread of the virus, which we expect to negatively impact this recent trend.

~~We believe deepening~~deepen consumer engagement on our platform will enable us to more ~~significantly~~effectively monetize our ~~influence and eventually grow – Hotels, Media & Platform segment revenue.~~influence. For example, in Tripadvisor-branded display and platform revenue, we enable travel partners to amplify their brand, generate brand impressions, and potentially drive qualified leads and bookings for their businesses. Historically, we have limited both the type and number of display-based advertising opportunities we make available to travel partners, particularly on mobile phone, which, in turn, has limited display-based advertising revenue growth. However, we continue to work on initiatives to better leverage our audience, content, data, travel influence and platform breadth to open up new media advertising opportunities through a more modern, high-powered advertising suite spanning native, video and programmatic solutions. We ~~intend to broaden~~have broadened our solution to a larger set of advertising travel endemic and non-travel endemic advertising partners, including industries such as ~~airlines~~entertainment, spirits, and finance. On the consumer side, we are focused on making Tripadvisor membership more valuable for consumers. As an example, during the second half of 2020, we introduced our first direct-to-consumer offerings. The first was Reco, a travel concierge service that connects travelers with a curated community of expert trip designers in local travel destinations. Then in

December 2020, we beta-launched Tripadvisor Plus, an annual subscription-based membership that offers discounts to consumers for hotels and experiences, as well as other perks and benefits. Subsequently, in mid-June 2021, we officially launched Tripadvisor Plus to consumers in the United States, including Tripadvisor Plus focused marketing on our website and in our email campaigns to our members. We also began adding more travel supply across travel categories, as well as offering our Tripadvisor Plus members discounts on experience bookings. Tripadvisor Plus remains an important strategic initiative in order to drive long-term growth.

~~In addition, over time we have and will continue to~~These efforts demonstrate our continued focus on ~~initiatives to increase our traffic~~increasing the quality ~~and deepen~~of customer engagement on our platform, including driving membership growth, increasing personalization, and innovating our mobile app experience. We believe ~~continued progress~~delivering – and improving ~~the user~~upon – a great experience onfor users will encourage more users to use our products and services more frequently, increase member growth and member engagement, and drive loyalty to our brand, products, and services. In turn, we believe this makes our platform more attractive for travel partners, and can ~~lead to~~result in increased monetization over time. For example, there remains not only an opportunity to continue to grow our member base, but also to deepen member engagement by making membership more valued, through building communities and leveraging our content to further personalize trip-planning features.

Our Experiences ~~and~~& Dining offerings contribute to the comprehensive user experience we deliver, which we believe helps to increase awareness of, loyalty to, and engagement with our products, drive more bookings to Experiences ~~and~~& Dining travel partners and generate greater revenue and increased profitability on our platform. Given the significant market opportunities in these large categories, we expect to continue to invest in building these offerings to drive consumer engagement, bookings and revenue growth for the long-term. Since the first quarter of 2020, this segment’s revenue has been negatively and materially impacted by a significant reduction in consumer demand due to the COVID-19 pandemic, which has reduced consumer willingness to research, purchase, and consume travel activities. This negative impact has also been driven by a wide variety of government-instituted actions and restrictions around the globe aimed at limiting the spread of the virus, all of which have impacted consumer access to experience offerings and restaurants. For example, during the first quarter of 2021, restaurants in most of the European countries in which our Dining business operates were ordered to remain closed.

~~During~~However, during the three ~~and nine~~ months ended ~~September~~June 30, ~~2020,~~2021, our Experiences ~~and~~& Dining segment’s financial results ~~have been adversely~~improved as a result of the growing travel demand recoverydriven by vaccine progress and ~~materially impacted by~~various government restrictions being gradually lifted. By means of showing a comparison to a pre-COVID-19 timeframe, beginning in March 2021 and continuing into the ~~COVID-19 pandemic. However, restaurants across European markets saw restrictions ease~~second quarter of 2021, we experienced improvements in U.S. consumers making domestic Experiences bookings, as U.S. point of sale bookings in June 2021 grew slightly when compared to June 2019, up from approximately 60% levels in April 2021, when compared to April 2019, with particular strength in water and outdoor related activities. We experienced strong consumer demand in our Viator business due to the growing consumer travel demand recovery during the second quarter of ~~2020, which was met with an increase~~2021, and as a result we increased investments in ~~consumer demand.~~performance marketing channels in order to capture additional market share. In addition, cancellation rates have decreased significantly since the ~~month of September 2020, theFork business unit had largely regained the revenue level of~~ ~~the prior~~ ~~year’s comparable period, however beginning in the fourth~~second quarter of 2020, ~~governments again, particularly in Europe, began to impose new restrictions to mitigate the spread of the virus which we expect to negatively impact this recent trend. We~~and have also ~~begun~~improved year-to-date during 2021. In Dining, we saw a notable recovery since mid-May 2021, as restaurants in most European countries in which TheFork operates started to ~~explore~~reopen for in-restaurant dining. By means of showing a comparison to a pre-COVID-19 timeframe, total Dining revenue reached approximately 90% of June 2019 revenue in June 2021.

Throughout the pandemic, we have explored new initiatives to delight and engage ~~consumers during this pandemic.~~consumers. For example, we ~~began offering virtual tours to~~improved our ~~consumers. This is in addition to other recent initiatives, such as the recent rollout of a new~~ ~~payment option in late 2019, which enables consumers to reserve certain experience activities~~site navigation, recommendations, and ~~defer payment until a date no later than two days before the experience date. In addition, we have generally provided our supply partners with accelerated payments~~ ~~to ease their burden during the pandemic.~~

In December 2019, we acquired U.K.-based Bookatable, which offers an online restaurant reservation and booking platform. This further strengthens our position in certain of our existing European markets as well as expands us into new countries, such as the U.K., Germany, Austria, Finland and Norway. TheFork’s online restaurant booking platform, including Bookatable, had approximately 80,000 total bookable restaurants as of September 30, 2020.sort orders.

Other is a combination of our Rentals, Flights & Car, ~~Cruises,~~ and ~~Tripadvisor China business units~~Cruise businesses and is not considered a reportable segment. ~~Profits and revenues have declined in the most recent period primarily due to the COVID-19 pandemic, similar~~Similar to our other business ~~units.~~units, financial results in Other also improved during the three months ended June 30, 2021 as a result of increased consumer demand due to the growing travel demand recovery. In addition to the ongoing impact of COVID-19 to its businesses, its financial results were also impacted during the three and six months ended June 30, 2021 as a result of the sale of our SmarterTravel business during the second quarter of 2020. We continue to operate these ~~offerings~~businesses opportunistically as they complement our overall strategic objectives to deliver more value to consumers and travel partners.

~~During the nine months ended September~~As of June 30, ~~2020, as discussed above,~~2021, the Company ~~enacted workforce reductions and furloughs in response to the COVID-19 pandemic. As~~had 2,648 employees. Our number of ~~September 30, 2020, we had 2,650~~ employees ~~a decrease of~~decreased approximately ~~30%~~10% when compared to the same period in ~~2019, which includes furloughed employees~~2020, as a result of the Company enacting workforce reductions in response to the COVID-19 pandemic during 2020. Approximately 35% and ~~employees that are currently~~50% of the ~~subject of country-specific consultation processes. Nearly 40% of our~~Company’s current employees are based in the U.S.

~~We have in place business continuity programs to ensure that employees are safe~~ and ~~that our teams continue to function effectively while working remotely during COVID-19.~~Europe, respectively. We believe we have good relationships with our employees, including relationships with employees represented by international works councils or other similar organizations.

In response to the COVID-19 pandemic, we have in place business continuity programs to ensure that employees are safe and that our teams continue to function effectively where continuing to work remotely.

Consumers’ travel expenditures have historically followed a seasonal pattern. Correspondingly, travel partners’ advertising investments, and therefore our revenue and profits, have also historically followed a seasonal pattern. Our financial performance tends to be seasonally highest in the second and third quarters of a given year, which includes the seasonal peak in consumer demand, traveler hotel and rental stays, and travel activities and experiences taken, compared to the first and fourth quarters, which represent seasonal low ~~points. However, due~~points. Due to the impact of COVID-19 on our business, which led to unfavorable working capital trends and material negative operating cash flow during the year ended December 31, 2020, we did not experience our typical seasonal pattern for revenue and profit during the ~~three~~calendar quarters within the year ended December 31, 2020. Although consumer demand, traveler hotel and ~~nine months ended September 30, 2020. In addition, cash outflows to~~rental stays, and travel ~~suppliers related to deferred merchant payables significantly exceeded cash received from travelers~~activities and experiences taken generally remain materially lower than historic levels, these trends have improved during the first ~~nine months~~half of ~~2020, primarily reflecting~~2021, particularly in the ~~decline~~second quarter of 2021, resulting in ~~consumer demand for our products and cancellations of reservations related to COVID-19, contributing significantly to unfavorable~~increased revenues, working capital ~~trends~~ and ~~material negative~~positive operating cash flow ~~during~~more akin to typical historical seasonality trends in the ~~nine months ended September 30, 2020. It~~first half of the year. However, it is difficult to ~~forecast~~predict the seasonality for the upcoming quarters, given the sustained uncertainty related to the ~~ultimate extent and duration~~continued economic impact of the ~~impact from~~ COVID-19 ~~the timing of development and widespread availability of a vaccine,~~pandemic, and the ultimate shape and timing of a ~~recovery.~~recovery in our key markets. In addition, significant shifts in our business mix or adverse economic conditions could result in future seasonal patterns that are different from historical ~~trends.~~trends.

Critical accounting policies and estimates are those that we believe are important in the preparation of our consolidated financial statements because they require that management use judgment and estimates in applying those policies. We prepare our consolidated financial statements and accompanying notes in accordance with GAAP. Preparation of the consolidated financial statements and accompanying notes requires that management make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the consolidated financial statements as well as revenue and expenses during the periods reported. Management bases its estimates on historical experience, when applicable and other assumptions that it believes are reasonable under the circumstances. Actual results may differ from estimates under different assumptions or conditions.

There are certain critical estimates that we believe require significant judgment in the preparation of our consolidated financial statements. We consider an accounting estimate to be critical if:

There have been no material changes to our critical accounting policies and estimates as compared to the critical accounting policies and estimates described in our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2019.~~

Given the continued economic impact of COVID-19 during the third quarter of 2020, the Company conducted a qualitative evaluation of relevant events and circumstances that would materially impact the fair value of each of our reporting units as of September 30, 2020. Based on such evaluation, we do not believe it is more likely than not that the fair value of our reporting units are below their respective carrying values as of September 30, 2020, with the exception of our Tripadvisor China reporting unit, as discussed below. As part of this evaluation, it was noted that, as of September 30, 2020, the Company’s market capitalization remained significantly in excess of its book value. The Company also observed its most recently completed goodwill impairment analyses indicated excess fair values over carrying values across our different reporting units. In addition, the Company considered any changes to key inputs used in our previous quantitative analysis’, including reporting unit forecasts, carrying values, and other key inputs, which included targeted sensitivity analysis on previous quantitative assessments, including applying hypothetical rate increases to the weighted average cost of capital used in our income approach analyses given the current COVID-19 environment, and the estimated fair values remained in excess of the carrying values. However, we believe the passage of time will provide new information regarding the expected duration, ultimate impact on consumer behavior, and long-term economic impacts of COVID-19 on the economy as a whole and to our business. The Company’s forecasting process in a COVID-19 environment is resulting in unprecedented challenges, given we are unable to predict the expected duration and ultimate severity of impacts of COVID-19 on the Company’s business. Accordingly, we continue to believe all of our reporting units are at an elevated risk for impairment in future periods. A prolonged decline in the outlook for future revenue and cash flows or other factors, related to COVID-19 or other events, could result in a determination that a non-cash impairment adjustment is required, which could be material. The Company will continue to monitor events and circumstances that may affect the fair value or carrying value of our reporting units.

~~Refer to “Note 7:~~ ~~Goodwill”~~ ~~in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for further information.~~

Refer to “Note 2: Significant Accounting Policies” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for an overview of new accounting pronouncements that we have adopted in ~~2020 or that we plan to adopt that have had or may have an~~the first half of 2021 and the impact, if any, on our unaudited condensed consolidated financial statements. ~~Notably, in the first quarter of 2020, we adopted the new credit losses guidance, or ASC 326,~~ using the modified retrospective approach and applied the guidance retrospectively at the effective date of January 1, 2020, through a cumulative-effect adjustment to retained-earnings on our consolidated balance sheet. Under this transition method, we did not update the financial information or provide any disclosures required under the new guidance for dates and periods prior to January 1, 2020.

~~With the exception of the change for the accounting of credit losses as a result of adopting ASC 326, as~~Other than described ~~above,~~under “Note 2: Significant Accounting Policies” Item 1 in this Quarterly Report on Form 10-Q, there have been no ~~other~~ significant changes to our significant accounting policies since December 31, ~~2019,~~2020, as described ~~under “Note 2:~~ ~~Significant Accounting Policies~~”, in the notes to consolidated financial statements in Item 8 of our Annual Report on Form 10-K for the year ended December 31, ~~2019.~~2020.

		Three months ended September 30,						% Change			Nine months ended September 30,						% Change				Three months ended June 30,						% Change			Six months ended June 30,						% Change
		2020			2019			2020 vs. 2019			2020			2019			2020 vs. 2019				2021			2020			2021 vs. 2020			2021			2020			2021 vs. 2020
Revenue		$	151		$	428			(65	)%	$	488		$	1,225			(60	)%		$	235		$	59			298	%	$	358		$	337			6	%

Costs and expenses:
Cost of revenue			13			25			(48	)%		42			73			(42	)%			19			10			90	%		31			29			7	%
Selling and marketing			70			176			(60	)%		249			534			(53	)%			123			54			128	%		196			179			9	%
Technology and content			46			76			(39	)%		166			224			(26	)%			54			51			6	%		109			120			(9	)%
General and administrative			35			51			(31	)%		129			138			(7	)%			46			43			7	%		84			94			(11	)%
Depreciation and amortization			30			32			(6	)%		94			92			2	%			28			32			(13	)%		57			64			(11	)%
Impairment of goodwill			3			—		n.m.				3			—		n.m.
Restructuring and other related reorganization costs			—			—		0		%		42			—		n.m.					—			33		n.m.				—			42		n.m.
Total costs and expenses:			197			360			(45	)%		725			1,061			(32	)%			270			223			21	%		477			528			(10	)%
Operating income (loss)			(46	)		68		n.m.				(237	)		164		n.m.					(35	)		(164	)		(79	)%		(119	)		(191	)		(38	)%
Other income (expense):
Interest expense			(13	)		(2	)		550	%		(22	)		(5	)		340	%			(11	)		(7	)		57	%		(22	)		(9	)		144	%
Interest income			1			5			(80	)%		3			14			(79	)%			—			1		n.m.				1			2			(50	)%
Other income (expense), net			—			2		n.m.				(9	)		—		n.m.					—			(9	)	n.m.				(1	)		(9	)		(89	)%
Total other income (expense), net			(12	)		5		n.m.				(28	)		9		n.m.					(11	)		(15	)		(27	)%		(22	)		(16	)		38	%
Income (loss) before income taxes			(58	)		73		n.m.				(265	)		173		n.m.					(46	)		(179	)		(74	)%		(141	)		(207	)		(32	)%
(Provision) benefit for income taxes			10			(23	)	n.m.				48			(63	)	n.m.					6			26			(77	)%		21			38			(45	)%
Net income (loss)		$	(48	)	$	50		n.m.			$	(217	)	$	110		n.m.				$	(40	)	$	(153	)		(74	)%	$	(120	)	$	(169	)		(29	)%

Other Financial Data:
Adjusted EBITDA (1)		$	15		$	129			(88	)%	$	(18	)	$	347		n.m.				$	25		$	(74	)	n.m.			$	(1	)	$	(34	)		(97	)%

n.m. = not meaningful
(1) See “Adjusted EBITDA” discussion below for more information.	(1) See “Adjusted EBITDA” discussion below for more information.																			(1) See “Adjusted EBITDA” discussion below for more information.

	Three months ended September 30,						% Change			Nine months ended September 30,						% Change			Three months ended June 30,						% Change			Six months ended June 30,						% Change
	2020			2019			2020 vs. 2019			2020			2019			2020 vs. 2019			2021			2020			2021 vs. 2020			2021			2020			2021 vs. 2020
Revenue by Segment:	(in millions)									(in millions)									(in millions)									(in millions)
Hotels, Media & Platform	$	80		$	238			(66	)%	$	287		$	746			(62	)%	$	156		$	38			311	%	$	245		$	207			18	%
Experiences & Dining		53			141			(62	)%		150			346			(57	)%		68			14			386	%		95			97			(2	)%
Other ~~(1)~~		18			49			(63	)%		51			133			(62	)%		11			7			57	%		18			33			(45	)%
Total revenue	$	151		$	428			(65	)%	$	488		$	1,225			(60	)%	$	235		$	59			298	%	$	358		$	337			6	%
Adjusted EBITDA by Segment:
Hotels, Media & Platform	$	4		$	93			(96	)%	$	25		$	306			(92	)%	$	33		$	(33	)	n.m.			$	30		$	20			50	%
Experiences & Dining		1			15			(93	)%		(56	)		(1	)		5500	%		(12	)		(38	)		(68	)%		(35	)		(57	)		(39	)%
Other ~~(1)~~		10			21			(52	)%		13			42			(69	)%		4			(3	)	n.m.				4			3			33	%
Total Adjusted EBITDA	$	15		$	129			(88	)%	$	(18	)	$	347		n.m.			$	25		$	(74	)	n.m.			$	(1	)	$	(34	)		(97	)%
Adjusted EBITDA Margin by Segment (2):
Adjusted EBITDA Margin by Segment (1):
Hotels, Media & Platform		5	%		39	%					9	%		41	%					21	%		(87	)%					12	%		10	%
Experiences & Dining		2	%		11	%					(37	)%		0	%					(18	)%		(271	)%					(37	)%		(59	)%
Other ~~(1)~~		56	%		43	%					25	%		32	%					36	%		(43	)%					22	%		9	%

n.m. = not meaningful

Hotels, Media & Platform segment revenue ~~decreased~~increased by ~~$158~~$118 million and ~~$459~~$38 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same periods in ~~2019,~~2020, primarily due to increased hotel auction revenue, particularly in the ~~impacts~~U.S., due to the impact of ~~COVID-19 pandemic~~growing consumer travel demand and increasing travel industry recovery on our business, as discussed ~~above and, to a lesser extent, the impacts of search engines (primarily Google) increasing the prominence of their own hotel products in search results.~~above.

Hotels, Media & Platform segment Adjusted EBITDA ~~decreased $89~~increased $66 million and ~~$281~~$10 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020, respectively,~~2021, when compared to the same periods in ~~2019. This was~~2020, primarily due to ~~a decrease~~an increase in revenue, as noted above, partially offset by ~~reductions~~an increase in ~~television advertising costs,~~ direct selling and marketing expenses related to search engine marketing, or SEM, and other online paid traffic acquisition costs in response to ~~a decline in~~increasing consumer travel demand ~~related to COVID-19~~as travel restrictions ease, vaccination rates increase, and ~~to a lesser extent, a reduction in headcount as a result of workforce reductions.~~the travel industry recovers.

The following is a detailed discussion of the revenue sources within our Hotels, Media & Platform segment:

	Three months ended September 30,				% Change			Nine months ended September 30,				% Change			Three months ended June 30,				% Change			Six months ended June 30,				% Change
	2020		2019		2020 vs. 2019			2020		2019		2020 vs. 2019			2021		2020		2021 vs. 2020			2021		2020		2021 vs. 2020
	(in millions)							(in millions)							(in millions)							(in millions)
Hotels, Media & Platform:
Tripadvisor-branded hotels	$	67	$	197		(66	%)	$	235	$	624		(62	%)	$	131	$	31		323	%	$	205	$	168		22	%
Tripadvisor-branded display and platform		13		41		(68	%)		52		122		(57	%)		25		7		257	%		40		39		3	%
Total Hotels, Media & Platform revenue	$	80	$	238		(66	%)	$	287	$	746		(62	%)	$	156	$	38		311	%	$	245	$	207		18	%

Tripadvisor-branded hotels revenue primarily includes hotel auction revenue and, to a lesser extent, hotel B2B revenue, which includes click-based revenue generated from hotel sponsored placements advertising that enable hotels to enhance their visibility on Tripadvisor hotel pages, and subscription-based advertising services that we offer to travel partners. For both the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, 84% ~~and 82%, respectively,~~ of our total Hotels, Media & Platform segment revenue was derived from Tripadvisor-branded hotels revenue. For the three and ~~nine~~six months ended ~~September~~June 30, ~~2019, 83%~~2020, 82% and ~~84%~~81%, respectively, of our

total Hotels, Media & Platform segment revenue was derived from Tripadvisor-branded hotels revenue. Tripadvisor-branded hotels revenue ~~decreased $130~~increased $100 million and ~~$389~~$37 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same periods in ~~2019.~~2020. This ~~decrease~~revenue increase was primarily driven by ~~reduced~~our hotel auction revenue, particularly in the U.S., due to rising consumer travel demand and travel industry recovery, given rising vaccination rates and easing of government travel restrictions. As consumer travel demand increased during the second quarter of 2021, the Company saw improved hotel auction monetization, as ~~a result~~CPC rates increased, which enabled increased efficient marketing investment on performance channels, enhancing our second quarter of COVID-19, concurrent with widespread travel restrictions and service limitations on our travel partners imposed by local and federal governments in response to the pandemic. In addition, we experienced reduced2021 hotel auction revenue ~~generated through our SEO marketing channel, which we believe is impacted by search engines (primarily Google) increasing the prominence of their own hotel products in search results.~~growth. See “Business Trends” above for further discussion.

For both the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, 16% ~~and 18%, respectively,~~ of Hotels, Media & Platform segment revenue was derived from our Tripadvisor-branded display and platform revenue, which consists of revenue from Tripadvisor-branded display-based advertising across our websites. For the three and six months ended June 30, 2020, 18% and 19%, respectively, of Hotels, Media & Platform segment revenue was derived from our Tripadvisor-branded display and platform revenue.

Tripadvisor-branded display-based advertising revenue ~~decreased~~increased by ~~$28~~$18 million and ~~$70~~$1 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same periods in ~~2019,~~2020, primarily driven by ~~a decrease~~an increase in marketing spend from our advertisers ~~due to lack of~~in correlation with increasing consumer travel demand, ~~resulting from the impact of the COVID-19 pandemic.~~as discussed above.

Experiences & Dining segment revenue ~~decreased~~increased by ~~$88 million and $196~~$54 million during the three ~~and nine~~ months ended ~~September~~June 30, ~~2020, respectively,~~2021, when compared to the same ~~periods~~period in ~~2019. Revenue growth~~2020, while revenue decreased by $2 million during the six months ended June 30, 2021, when compared to the same period in 2020. Since the first quarter of 2020, this ~~segment was~~segment’s revenue has been negatively and materially impacted by a significant reduction in consumer demand due to the COVID-19 pandemic, which has reduced consumer willingness to research, purchase, and consume travel and leisure activities. This negative impact has also been driven by a wide variety of government-instituted actions and restrictions around the globe aimed at limiting the spread of the virus, all of which have impacted consumer access to experience offerings and restaurants. For example, during the first quarter of 2021, restaurants in most European countries in which our Dining business operates were ordered to remain closed. However, during the three months ended June 30, 2021, our Experiences & Dining segment’s financial results significantly improved as a result of ~~COVID-19, concurrent with~~ the growing consumer travel demand recovery

~~many jurisdictions globally adopting laws, rules, regulations or decrees intended to address COVID-19, including implementing~~driven by vaccine progress and various ~~travel~~government restrictions “shelter in place” or “social distancing” mandates, or restricting access to city centers or popular tourist destinations, restaurants and limiting access to experience offerings in surrounding areas. ~~However, restaurants across many European markets saw restrictions ease~~being gradually lifted during the second quarter of ~~2020,~~2021, which ~~was met with an increase in consumer demand, and in the month of September 2020, theFork business unit had largely regained the revenue level of~~ is discussed further under “~~the prior~~ Business Trends~~year’s comparable period.~~ ~~In addition, this segment’s revenue did benefit from incremental revenue year-over-year of approximately $9 million and $27 million during the three and~~ ” above.~~nine months ended September~~ ~~30, 2020, respectively, related to our December 2019 acquisitions of Bookatable and SinglePlatform.~~

Experiences & Dining segment Adjusted EBITDA ~~decreased $14 million and $55~~increased $26 million during the three ~~and nine~~ months ended ~~September~~June 30, ~~2020, respectively,~~2021, when compared to the same ~~periods~~period in ~~2019,~~2020, primarily due to ~~the decrease~~an increase in revenue as noted above, partially offset by ~~reduced~~an increase in direct selling and marketing expenses related to SEM and other online paid traffic acquisition costs in response to ~~reduced~~increased consumer demand of experiences, tours, and ~~lack of, or reduced, availability of dine-in~~ restaurants ~~experiences and tours,~~due to the growing consumer travel demand recovery. Experiences & Dining segment Adjusted EBITDA increased $22 million during the six months ended June 30, 2021, when compared to the same period in 2020, primarily due to a reduction in personnel costs as a result of workforce reductions related to our cost-reduction measures during 2020 in response to COVID-19, and, to a lesser extent, ~~decreased direct~~lower television advertising costs, ~~from credit card payment~~office lease costs, and ~~other transaction costs directly~~bad debt expense, partially offset by increased selling and marketing expenses related to ~~reduced revenue~~SEM in response to increased consumer demand of experiences, tours and restaurants as ~~a result~~part of ~~COVID-19 and a reduction in headcount as a result of workforce reductions.~~the growing consumer travel demand recovery.

Other revenue, which ~~primarily~~ includes Rentals revenue in addition to primarily click-based advertising and display-based advertising revenue from our Flights, Cars, and Cruises offerings on Tripadvisor websites, ~~and Tripadvisor China, decreased~~increased by ~~$31 million and $82~~$4 million during the three ~~and nine~~ months ended ~~September~~June 30, ~~2020, respectively,~~2021, when compared to the same ~~periods~~period in ~~2019,~~2020, primarily due to ~~decreased~~increased consumer travel demand and travel partner spend, similar to our other businesses, as ~~a result~~described above. Other revenue decreased by $15 million during the six months ended June 30, 2021, when compared to the same period in 2020, primarily due to the continued negative impact of COVID-19 on these offerings, and subsequent widespread global travel restrictions and service limitations on travel and supply partners imposed by local and federal governments, and reduced travel partner spend in response to COVID-19.the sale of our SmarterTravel business during the second quarter of 2020.

Adjusted EBITDA in Other ~~decreased $11 million and $29~~increased $7 million during the three ~~and nine~~ months ended ~~September~~June 30, ~~2020,~~2021, when compared to the same ~~periods~~period in ~~2019,~~2020, primarily due to ~~the decrease~~an increase in revenue ~~partially offset by~~as noted above, and, to a lesser extent, a reduction in ~~selling and marketing expenses related to SEM and other online paid traffic acquisition~~personnel costs ~~in response to a decline in consumer demand related to COVID-19, and a reduction in headcount~~ as a result of workforce ~~reductions.~~reductions related to our cost-reduction measures during the first half of 2020 in response to COVID-19. Adjusted EBITDA in Other increased $1 million during the six months ended June 30, 2021, when compared to the same period in 2020, primarily due to reduction in personnel costs as a result of workforce reductions related to our cost-reduction measures during the first half of 2020 in response to COVID-19, partially offset by a decrease in revenue as noted above.

Cost of revenue consists of expenses that are directly related or closely correlated to revenue generation, including direct costs, such as credit card and other booking transaction payment fees, data center costs, costs associated with prepaid tour tickets, ad serving fees, flight search fees, and other transaction costs. In addition, cost of revenue includes personnel and overhead expenses, including salaries, benefits, stock-based compensation and bonuses for certain customer support personnel who are directly involved in revenue generation.

	Three months ended September 30,						% Change			Nine months ended September 30,						% Change			Three months ended June 30,						% Change			Six months ended June 30,						% Change
	2020			2019			2020 vs. 2019			2020			2019			2020 vs. 2019			2021			2020			2021 vs. 2020			2021			2020			2021 vs. 2020
	(in millions)									(in millions)									(in millions)									(in millions)
Direct costs	$	8		$	19			(58	%)	$	25		$	55			(55	%)	$	13		$	5			160	%	$	20		$	17			18	%
Personnel and overhead		5			6			(17	%)		17			18			(6	%)		6			5			20	%		11			12			(8	%)
Total cost of revenue	$	13		$	25			(48	%)	$	42		$	73			(42	%)	$	19		$	10			90	%	$	31		$	29			7	%
% of revenue		8.6	%		5.8	%					8.6	%		6.0	%					8.1	%		16.9	%					8.7	%		8.6	%

Cost of revenue ~~decreased $12~~increased $9 million and ~~$31~~$2 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same periods in ~~2019,~~2020, primarily due to ~~decreased~~increased direct costs from credit card payment and other revenue-related transaction costs in ~~our Experiences & Dining segment in~~ correlation with ~~the reduction~~an increase in ~~revenue related to COVID-19.~~revenue.

Selling and marketing expenses primarily consist of direct costs, including traffic generation costs from SEM and other online traffic acquisition costs, syndication costs and affiliate ~~program~~marketing commissions, social media costs, brand advertising (including television and other offline advertising), promotions and public relations. In addition, our sales and marketing expenses consist of

indirect costs such as personnel and overhead expenses, including salaries, commissions, benefits, stock-based compensation, and bonuses for sales, sales support, customer support and marketing employees.

	Three months ended September 30,						% Change			Nine months ended September 30,						% Change			Three months ended June 30,						% Change			Six months ended June 30,						% Change
	2020			2019			2020 vs. 2019			2020			2019			2020 vs. 2019			2021			2020			2021 vs. 2020			2021			2020			2021 vs. 2020
	(in millions)									(in millions)									(in millions)									(in millions)
Direct costs	$	30		$	116			(74	%)	$	103		$	356			(71	%)	$	79		$	9			778	%	$	108		$	73			48	%
Personnel and overhead		40			60			(33	%)		146			178			(18	%)		44			45			(2	%)		88			106			(17	%)
Total selling and marketing	$	70		$	176			(60	%)	$	249		$	534			(53	%)	$	123		$	54			128	%	$	196		$	179			9	%
% of revenue		46.4	%		41.1	%					51.0	%		43.6	%					52.3	%		91.5	%					54.7	%		53.1	%

Direct selling and marketing costs ~~decreased $86~~increased $70 million and ~~$253~~$35 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same periods in ~~2019,~~2020, primarily due to ~~a decrease~~an increase in our SEM and other online traffic acquisition ~~costs~~spend across all our segments and businesses ~~and, to a lesser extent, a decrease in television advertising costs in our Hotels, Media & Platform segment, driven by cost reduction measures primarily~~ in response to increasing consumer travel demand as travel activity restrictions lift and the ~~financial impact to the Company and decline in consumer demand caused by the COVID-19 pandemic.~~travel industry recovers.

Personnel and overhead costs decreased ~~$20~~$1 million and ~~$32~~$18 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same periods in ~~2019,~~2020, primarily as a result of a reduction in headcount related to our cost-reduction measures across our business in response to COVID-19 across all of our business, partially offset by an increase in personnel costs in our Experiences & Dining segment related to additional headcount from our business acquisitions in December 2019. In addition,implemented during the three and nine months ended September 30, 2020, we recognized $1 million and $5 million, respectively, as a reduction in personnel costs related to government grants and other assistance benefits received as COVID-19 relief from various governments.first half of 2020.

Technology and content expenses consist primarily of personnel and overhead expenses, including salaries and benefits, stock-based compensation expense, and bonuses for salaried employees and contractors engaged in the design, development, testing, content support, and maintenance of our websites and mobile apps. Other costs include licensing, maintenance expense, computer supplies, telecom costs, content translation and localization costs, and consulting costs.

	Three months ended September 30,						% Change			Nine months ended September 30,						% Change			Three months ended June 30,						% Change			Six months ended June 30,						% Change
	2020			2019			2020 vs. 2019			2020			2019			2020 vs. 2019			2021			2020			2021 vs. 2020			2021			2020			2021 vs. 2020
	(in millions)									(in millions)									(in millions)									(in millions)
Personnel and overhead	$	40		$	67			(40	%)	$	145		$	199			(27	%)	$	48		$	45			7	%	$	98		$	106			(8	%)
Other		6			9			(33	%)		21			25			(16	%)		6			6			0	%		11			14			(21	%)
Total technology and content	$	46		$	76			(39	%)	$	166		$	224			(26	%)	$	54		$	51			6	%	$	109		$	120			(9	%)
% of revenue		30.5	%		17.8	%					34.0	%		18.3	%					23.0	%		86.4	%					30.4	%		35.6	%

Technology and content costs ~~decreased $30 million and $58~~increased $3 million during the three ~~and nine~~ months ended ~~September~~June 30, ~~2020, respectively,~~2021, when compared to the same ~~periods~~period in ~~2019,~~2020, primarily due to increased personnel and overhead related to performance bonus costs, contingent staff costs, and stock-based compensation expense to help support business growth and key staff retention during the growing travel demand recovery. Technology and content costs decreased $11 million during the six months ended June 30, 2021, when compared to the same period in 2020, primarily due to decreased personnel and overhead costs across ~~all~~ our business as a result of a reduction in headcount driven by cost-reduction measures across our business in response to ~~COVID-19.In addition,~~COVID-19 implemented during the ~~three~~first half of 2020, partially offset by an increase in performance bonus costs, contingent staff costs, and ~~nine months ended September 30, 2020, we recognized $1 million~~stock-based compensation expense to help support business growth and ~~$4 million, respectively, as a reduction in personnel costs related to government grants and other assistance benefits received as COVID-19 relief from various governments.~~key staff retention during the growing travel demand recovery.

General and administrative expenses consist primarily of personnel and related overhead costs, including personnel engaged in leadership, finance, legal, and human resources, as well as stock-based compensation expense for those same personnel. General and administrative costs also include professional service fees and other fees including audit, legal, tax and accounting, and other costs including bad debt expense, non-income taxes, such as sales, use and other non-income related taxes.

	Three months ended September 30,						% Change			Nine months ended September 30,						% Change			Three months ended June 30,						% Change			Six months ended June 30,						% Change
	2020			2019			2020 vs. 2019			2020			2019			2020 vs. 2019			2021			2020			2021 vs. 2020			2021			2020			2021 vs. 2020
	(in millions)									(in millions)									(in millions)									(in millions)
Personnel and overhead	$	25		$	34			(26	%)	$	85		$	100			(15	%)	$	34		$	26			31	%	$	63		$	60			5	%
Professional service fees and other		10			17			(41	%)		44			38			16	%		12			17			(29	%)		21			34			(38	%)
Total general and administrative	$	35		$	51			(31	%)	$	129		$	138			(7	%)	$	46		$	43			7	%	$	84		$	94			(11	%)
% of revenue		23.2	%		11.9	%					26.4	%		11.3	%					19.6	%		72.9	%					23.5	%		27.9	%

General and administrative costs decreased $16 million and $9 million during the three and nine months ended September 30, 2020, respectively, when compared to the same periods in 2019. Personnel and overhead costs decreased $9 million and $15 million during the three and nine months ended September 30, 2020, respectively, when compared to the same periods in 2019, primarily driven by a reduction in headcount related to our cost-reduction measures across all our business in response to COVID-19. Professional service fees and other decreased $7increased $3 million during the three months ended ~~September~~June 30, ~~2020,~~2021, when compared to the same period in ~~2019, primarily due to a decrease in digital service tax~~2020. Personnel and ~~other outside consulting costs. Professional service fees and other~~overhead costs increased $6$8 million during the ~~nine~~three months ended ~~September~~June 30, ~~2020,~~2021, when compared to the same period in ~~2019,~~2020, primarily related to increased performance bonus costs and stock-based compensation expense to help support business growth and key staff retention during the growing consumer travel demand recovery. Professional service fees and other decreased $5 million during the three months ended June 30, 2021, when compared to the same period in 2020, primarily due to ~~an increase~~a decrease in bad debt expense, partially offset by an increase in non-income related taxes.

General and administrative costs decreased $10 million during the six months ended June 30, 2021, when compared to the same period in 2020. Personnel and overhead costs increased $3 million during the six months ended June 30, 2021, when compared to the same period in 2020, primarily driven by an increase in performance bonus costs and stock-based compensation expense to help support business growth and key staff retention during the growing consumer travel demand recovery, partially offset by decreased salaries and wages and related benefits costs across our business as a result of a reduction in headcount driven by cost-reduction measures across our business in response to COVID-19 ~~impact on our customers.~~implemented during the first half of 2020. Professional service fees and other decreased $13 million during the six months ended June 30, 2021, when compared to the same period in 2020, primarily due to a decrease in bad debt expense and to a lesser extent third-party professional service costs, partially offset by an increase in certain non-income related taxes.

Depreciation expense consists of depreciation on computer equipment, leasehold improvements, furniture, office equipment and other assets, and amortization of capitalized software and website development costs and right-of-use (“ROU”) assets related to our finance lease. Amortization consists of the amortization of definite-lived intangibles purchased in business acquisitions.

	Three months ended September 30,						Nine months ended September 30,						Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019			2021			2020			2021			2020
	(in millions)						(in millions)						(in millions)						(in millions)
Depreciation	$	24		$	23		$	75		$	69		$	23		$	26		$	46		$	51
Amortization of intangible assets		6			9			19			23			5			6			11			13
Total depreciation and amortization	$	30		$	32		$	94		$	92		$	28		$	32		$	57		$	64
% of revenue		19.9	%		7.5	%		19.3	%		7.5	%		11.9	%		54.2	%		15.9	%		19.0	%

Depreciation and amortization decreased $2$4 million and $7 million during the three and six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same ~~period~~periods in ~~2019,~~2020, primarily due to the completion of amortization related to certain intangible assets from previous business acquisitions ~~partially offset by increased depreciation related to capitalized software~~ and ~~website development costs. Depreciation and amortization increased $2 million during the nine months ended September 30, 2020, when compared to the same period in 2019, primarily due to increased~~lower depreciation related to capitalized software and website development costs ~~partially offset~~driven by ~~the completion of amortization related to certain intangible assets from previous business acquisitions.~~

~~The Company recorded~~ a ~~goodwill impairment charge of $3 million~~reduction in headcount related to our ~~Tripadvisor China reporting unit~~cost-reduction measures across our business in response to COVID-19 implemented during the ~~third quarter~~first half of 2020.

Restructuring and other related reorganization costs consist primarily of employee severance and related benefits.

	Three months ended September 30,						Nine months ended September 30,						Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019			2021			2020			2021			2020
	(in millions)						(in millions)						(in millions)						(in millions)
Restructuring and other related reorganization costs	$	—		$	—		$	42		$	—		$	—		$	33		$	—		$	42
% of revenue		0.0	%		0.0	%		8.6	%		0.0	%		0.0	%		55.9	%		0.0	%		12.5	%

The Company incurred pre-tax restructuring and other related reorganization costs of $42 million during the nine months ended September 30, 2020. The costs consist of employee severance and related benefits. In response to the COVID-19 pandemic, during the second quarter of 2020, the Company committed to restructuring actions intended to reinforce its financial position, reduce its cost structure, and improve operational efficiencies, ~~resulting~~which resulted in headcount ~~reductions, for which we recognized $33 million in restructuring and other related reorganization costs.~~reductions. In addition, wethe Company engaged in a smaller scale restructuring action in the first quarter of 2020 to reduce our cost structure and improve our operational efficiencies, which resulted in headcount reductions for which we recognized $9 million in restructuring and other related reorganization costs. No further restructuring costs were incurred during the three and six months ended June 30, 2021.

Interest expense primarily consists of interest incurred, commitment fees, and debt issuance cost amortization related to our 2015 Credit Facility, ~~and~~2025 Senior Notes, 2026 Senior Notes, as well as interest on our finance ~~leases.~~lease.

Interest expense increased ~~$11~~$4 million and ~~$17~~$13 million during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, when compared to the same periods in ~~2019,~~2020, primarily due ~~to an increase in interest incurred due to higher average outstanding borrowings related~~ to the issuance of our 2025 Senior Notes ~~and~~in July 2020, partially offset by lower average outstanding borrowings ~~from~~on our 2015 Credit Facility during ~~2020.~~the first half of 2021. Refer to “Note 8: 6: Debt~~” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for further information.~~

Interest income primarily consists of interest earned from our money market funds, term deposits and marketable securities, including amortization of discounts and premiums on our marketable securities.

Interest income decreased $4 million and $11 million during the three and nine months ended September 30, 2020, respectively, when compared to the same periods in 2019, primarily due to both a reduction in average interest rates earned on our investments and lower average invested funds by the Company during 2020.

Other income (expense), net generally consists of net foreign exchange gains and losses, earnings/(losses)from equity method investments, impairments on non-marketable investments, gain/loss on sale/disposal of businesses, and other non-operating income (expenses).

Other income (expense), net decreased $9 million during the nine months ended September 30, 2020, when compared to the same period in 2019, respectively, primarily due to a loss on sale of business of $6 million, an allowance for credit losses of $3 million on a long-term note receivable and net losses from our equity method investment; partially offset by net foreign currency transaction gains as a result of the fluctuation of foreign exchange rates during 2020. Refer to “Note 14: ~~Other income (expense), net~~” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for further information.

Other income (expense), net generally consists of net foreign exchange gains and losses, forward contract gains and losses, earnings/(losses) from equity method investments, gain/(loss) and impairments on non-marketable investments, gain/loss on sale/disposal of businesses, and other non-operating income (expenses).

Other expense, net decreased $9 million and $8 million during the three and six months ended June 30, 2021, respectively,when compared to the same periods in 2020, primarily due to a loss on sale of business of $5 million and allowance for credit losses of $3 million on a long-term note receivable during 2020, which did not reoccur in 2021.

	Three months ended September 30,						Nine months ended September 30,						Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019			2021			2020			2021			2020
	(in millions)						(in millions)						(in millions)						(in millions)
(Provision) benefit for income taxes	$	10		$	(23	)	$	48		$	(63	)	$	6		$	26		$	21		$	38
Effective tax rate		17.2	%		31.5	%		18.1	%		36.4	%		13.0	%		14.5	%		14.9	%		18.4	%

For the three and six months ended June 30, 2021, the effective tax rate was less than the federal statutory rate primarily due to valuation allowances on foreign losses.

We ~~had~~recorded income tax benefits of ~~$10~~$6 million and ~~$48~~$21 million for the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, respectively, and income tax ~~expense~~benefits of ~~$23~~$26 million and ~~$63~~$38 million for the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2020, respectively. The decrease in our income tax ~~expense~~benefit during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, when compared to the same periods in ~~2019,~~2020, was primarily due to ~~significant pretax losses incurred during both the three and nine months ended September 30, 2020, respectively, and an~~a decrease in loss before income ~~tax benefit of $3 million and $22 million~~taxes recognized during the three and ~~nine~~six months ended ~~September~~June 30, 2020, respectively, from the tax rate differential in tax years applicable to U.S. loss carryforwards that became eligible for carryback under the CARES Act enacted in March 2020, offset by an increase in the recognition of stock-based compensation shortfalls related to the decline in the Company’s common stock price during both the three and nine months ended September 30, 2020, respectively.2021. Refer to “Note 9:7: Income Taxes” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for further information.

	Three months ended September 30,						Nine months ended September 30,						Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019			2021			2020			2021			2020
	(in millions)						(in millions)						(in millions)						(in millions)
Net income (loss)	$	(48	)	$	50		$	(217	)	$	110		$	(40	)	$	(153	)	$	(120	)	$	(169	)
Net income (loss) margin		(31.8	%)		11.7	%		(44.5	%)		9.0	%		(17.0	%)		(259.3	%)		(33.5	%)		(50.1	%)

Net ~~income~~loss decreased ~~$98 million and $327~~$113 million during the three ~~and nine~~ months ended ~~September~~June 30, ~~2020,~~2021, when compared to the same ~~periods~~period in ~~2019,~~2020, primarily due to ~~a decrease~~an increase in revenue, ~~primarily related~~as described above in “Revenue and Segment Information” and to a lesser extent, restructuring costs incurred in the three months ended June 30, 2020 of $33 million, which did not reoccur during the three months ended June 30, 2021, partially offset largely by an increase in selling and marketing expenses in response to increasing consumer travel demand as travel activity restrictions lift and the travel industry recovers, all of which is described above under “Consolidated Expenses.”

Net loss decreased $49 million during the six months ended June 30, 2021, when compared to the ~~negative impact on the Company’s business related~~same period in 2020, primarily due to ~~the COVID-19 pandemic,~~an increase in revenue, as described above in “Revenue and Segment Information”, ~~partially offset by a decrease~~restructuring costs incurred of $42 million in ~~total~~the six months ended June 30, 2020, which did not reoccur during the six months ended June 30, 2021, and decreased personnel and overhead costs ~~and expenses, primarily~~across our business as a result of ~~cost~~a reduction in headcount driven by cost-reduction measures ~~initiated by the Company~~across our business in response to COVID-19 implemented during the ~~COVID-19 pandemic,~~six months ended June 30, 2020, partially offset largely by an increase in selling and marketing expenses in response to increasing consumer travel demand as travel activity restrictions lift and the travel industry recovers, all of which is described above inunder “Consolidated ~~Expenses~~Expenses.”.

To provide investors with additional information regarding our financial results, we also disclose consolidated Adjusted EBITDA, which is a non-GAAP financial measure. A “non-GAAP financial measure” refers to a numerical measure of a company’s historical or future financial performance, financial position, or cash flows that excludes (or includes) amounts that are included in (or excluded from) the most directly comparable measure calculated and presented in accordance with GAAP in such company’s financial statements.

Adjusted EBITDA is also our segment profit measure and a key measure used by our management and board of directors to understand and evaluate the financial performance of our business and on which internal budgets and forecasts are based and approved. In particular, the exclusion of certain expenses in calculating Adjusted EBITDA can provide a useful measure for period-to-period comparisons and better enables management and investors to compare financial results between periods as these costs may vary independent of ongoing core business performance. Accordingly, we believe that Adjusted EBITDA provides useful information to investors and others in understanding and evaluating our operating results in the same manner as our management and board of directors. We define Adjusted EBITDA as net income (loss) plus: (1) (provision) benefit for income taxes; (2) other income (expense), net; (3) depreciation and amortization; (4) stock-based compensation and other stock-settled obligations; (5) goodwill, ~~long-lived~~intangible asset, and ~~intangible~~long-lived asset impairments; (6) legal reserves and settlements; (7) restructuring and other related reorganization costs; and (8) other non-recurring expenses and income.

Our use of Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our results reported in accordance with GAAP. Because of these limitations, you should consider Adjusted EBITDA alongside other financial performance measures, including net income and our other GAAP results.

The following table presents a reconciliation of Adjusted EBITDA to Net ~~income (loss)~~Income (Loss), the most directly comparable financial measure calculated and presented in accordance with GAAP, for the periods presented:

	Three months ended September 30,						Nine months ended September 30,						Three months ended June 30,						Six months ended June 30,
	2020			2019			2020			2019			2021			2020			2021			2020
	(in millions)												(in millions)
Net income (loss)	$	(48	)	$	50		$	(217	)	$	110		$	(40	)	$	(153	)	$	(120	)	$	(169	)
Add: (Benefit) Provision for income taxes		(10	)		23			(48	)		63			(6	)		(26	)		(21	)		(38	)
Add: Other expense (income), net		12			(5	)		28			(9	)		11			15			22			16
Add: Restructuring and other related reorganization costs		—			—			42			—			—			33			—			42
Add: Impairment of goodwill		3			—			3			—
Add: Stock-based compensation		28			29			80			91			32			25			61			51
Add: Depreciation and amortization		30			32			94			92			28			32			57			64
Adjusted EBITDA	$	15		$	129		$	(18	)	$	347		$	25		$	(74	)	$	(1	)	$	(34	)

For information on our relationship with LTRIP, which may be deemed to beneficially own equity securities representing ~~58.5%~~57.2% of our voting power as of ~~September~~June 30, ~~2020,~~2021, refer to “Note 1: Business Description and Basis of Presentation” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q. We had no related party transactions with LTRIP during the three and ~~nine~~six months ended ~~September~~June 30, ~~2020~~2021 and ~~2019, respectively.~~2020.

Refer to “Note 5:9: Stock Based Awards and Other Equity Instruments” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for further information on current year equity award activity, including the issuance of ~~1,091,000~~approximately 716,000 service-based stock options with a weighted average grant-date fair value per option of ~~$10.08, 6,244,000 primarily~~$20.39 and approximately 2,277,000 service-based RSUs with a weighted average grant-date fair value of ~~$24.48, and 133,000 MSUs with a weighted average grant-date fair value of $28.15~~$45.77 during the ~~nine~~six months ended ~~September~~June 30, ~~2020.~~2021.

Our principal source of liquidity is cash flow generated from operations and our existing cash and cash equivalents balance. Our liquidity needs can also be met through drawdowns under our 2015 Credit Facility. As of ~~September~~June 30, ~~2020~~2021 and December 31, ~~2019,~~2020, we had ~~$446~~$775 million and ~~$319~~$418 million, respectively, of cash and cash equivalents, ~~and~~with nearly ~~$1 billion~~$500 million of available borrowing capacity under our 2015 Credit Facility ~~as of September 30, 2020~~. As of ~~September~~June 30, ~~2020,~~2021, approximately ~~$120~~$150 million of our cash and cash equivalents were held by our international subsidiaries outside of the U.S., of which ~~approximately 50%~~nearly 60% was located in the U.K. As of ~~September~~June 30, ~~2020,~~2021, the significant majority of our cash was denominated in U.S. dollars. As of June 30, 2021, t~~The~~he Company had ~~$500~~$845 million in long-term debt, ~~as of September 30, 2020,~~ as a result of the issuance of ~~its~~our 2025 Senior Notes in July 2020 and 2026 Senior Notes in March 2021, as discussed ~~below~~below..

As of ~~September~~June 30, ~~2020,~~2021, we had ~~$508~~$438 million of cumulative undistributed earnings in foreign ~~subsidiaries.~~subsidiaries, of which ~~As a result~~$320 million of ~~the 2017 Tax Act,~~these cumulative undistributed foreign earnings ~~may now generally~~were not considered to be ~~repatriated back to~~indefinitely reinvested. As of June 30, 2021, we maintained a deferred income tax liability on our unaudited condensed consolidated balance sheet, which was not material, for the U.S. ~~without incurring U.S.~~ federal

and state income ~~tax. Historically, we have asserted our intention to indefinitely reinvest~~tax and foreign withholding tax liabilities on the cumulative undistributed ~~earnings of our~~ foreign subsidiaries. In response to increased cash requirements in the U.S. related to our declaration of a special cash dividend and other strategic initiatives during the fourth quarter of 2019, we determinedearnings that we no longer consider ~~$390 million of these foreign earnings to be~~ indefinitely reinvested. We intend to indefinitely reinvest $118 million of ~~our~~these foreign earnings in our ~~non-US subsidiaries. Determination~~non-U.S. subsidiaries, which determination of ~~the amount of~~any related unrecognized deferred income tax liability ~~related to these earnings~~ is not practicable.

As of June 30, 2021, we ~~amended~~are party to our 2015 Credit Facility,which, among other things, provides for a $500 million revolving credit facility with a maturity date of May 12, 2024.

The 2015 Credit Facility requires us to maintain a maximum leverage ratio and contains certain customary affirmative covenants and events of default, including a change of control. Borrowings under the 2015 Credit Facility generally bear interest, at the Company’s option, at a rate per annum equal to either (i) the Eurocurrency Borrowing rate, or the adjusted LIBO rate for the interest period in effect for such borrowing; plus an applicable margin ranging from 1.25% to 2.00% (“Eurocurrency Spread”), based on the Company’s leverage ratio; or (ii) the Alternate Base Rate (“ABR”) Borrowing, which is the greatest of (a) the Prime Rate in effect on such day, (b) the New York Fed Bank Rate in effect on such day plus 1/2 of 1.00% per annum and (c) the Adjusted LIBO Rate (or LIBO rate multiplied by the Statutory Reserve Rate) for an interest period of one month plus 1.00%; in addition to an applicable margin ranging from 0.25% to 1.00% (“ABR Spread”), based on the Company’s leverage ratio.

However, we amended the 2015 Credit Facility in May 2020 and December 2020, to among other things, suspend the leverage ratio covenant ~~on this facility~~for quarterly testing of compliance beginning in the second quarter of 2020, ~~and ending prior to September 30, 2021 (or such earlier date as elected by the Company), the Leverage Covenant Holiday, and~~ replacing it with a minimum liquidity covenant ~~that requires us~~through June 30, 2021(requiring the Company to maintain $150 million of unrestricted cash, cash ~~equivalents~~equivalent and short-term investments less deferred merchant payables plus available revolver ~~capacity,~~capacity), until the earlier of (a) the first day after June 30, 2021 through maturity on which ~~will apply only during~~borrowings and other revolving credit utilizations under the ~~Leverage Covenant Holiday, as well as downsizing its capacity to $1.0 billion from $1.2 billion. The Second Amendment also prohibits~~revolving commitments exceed $200 million, and (b) the election of the Company, ~~from payments and distributions, including share repurchases and dividends, during~~at which time the ~~Leverage~~leverage ratio covenant will be reinstated (the “Leverage Covenant ~~Holiday. No change was made to the existing maturity date of the 2015 Credit Facility of May 12, 2022.~~ Holiday”).

During the Leverage Covenant Holiday, any ~~outstanding or future~~ borrowings under the 2015 Credit Facility ~~will~~ bear interest at LIBOR plus a 2.25% margin with a LIBOR floor of 1% per annum. We are also required to pay a quarterly commitment fee, at an applicable rate of 0.5%, on the daily unused portion of the revolving credit facility for each fiscal quarter while the Leverage Covenant Holiday is in place. The 2015 Credit Facility includes restrictions on the Company’s ability to make certain payments and distributions, including share repurchases and dividends.

As of ~~September~~June 30, ~~2020~~2021 and December 31, ~~2019,~~2020, we had no outstanding borrowings and were in compliance with our ~~debt covenants~~covenant requirements under ~~this facility.~~the 2015 Credit Facility. ~~Commencing with the quarter ending September 30, 2021, the minimum~~

~~liquidity covenant, or the Leverage Covenant Holiday, will cease to apply and the leverage ratio covenant will again be in effect.~~ While there can be no assurance that we will be able to meet the leverage ratio covenant ~~and our ability to borrow under~~after the ~~2015 Credit Facility depends on compliance with various covenants,~~Leverage Covenant Holiday ceases, based on our current projections, we do not believe there is a material risk we will not remain in compliance throughout the next twelve months.

During the first quarter of 2020, the Company borrowed $700 million under the 2015 Credit Facility. These funds were drawn down as a precautionary measure to reinforce our liquidity position and preserve financial flexibility in light of uncertainty in the global markets resulting from the COVID-19 pandemic. The Company repaid ~~these~~those borrowings in full during the ~~three months ended September 30, 2020.~~third quarter of 2020 with proceeds received from the 2025 Senior Notes, as discussed below.

In July 2020, the Company completed the sale of $500 million in 2025 Senior Notes. The 2025 Senior Notes provide, among other things, that interest, at an interest rate of 7.0% per annum, will be payable ~~on the Senior Notes~~ on January 15 and July 15 of each year, ~~beginning~~which began on January 15, 2021, ~~at an interest rate of 7.000% per annum,~~ until their maturity ~~date of~~on July 15, 2025. IT~~n July 2020, the~~he Company used the net proceeds from the 2025 Senior Notes, or $490 million, net of approximately $10 million in debt ~~issuances~~issuance costs, to repay a portion of our outstanding borrowings under our 2015 Credit Facility, as noted above. The 2025 Senior Notes are senior unsecured obligations of the Company and are guaranteed ~~on a senior unsecured basis~~ by certain of the Company’s domestic subsidiaries.

In March 2021, the Company completed the sale of $345 million of our 2026 Senior Notes. The 2026 Senior Notes provide, among other things, that interest, at an interest rate of 0.25% per annum, will be payable on April 1 and October 1 of each year, beginning on October 1, 2021, until their maturity on April 1, 2026. Concurrently, the Company used a portion of the proceeds from the 2026 Senior Notes to enter into privately negotiated capped call transactions with certain of the initial purchasers of the 2026 Senior Notes and/or their respective affiliates and/or other financial institutions at a cost of approximately $35 million. The Company intends to use the remainder of the net proceeds from this offering for general corporate purposes, which may include repayment of

debt, including the partial redemption and/or purchase of the 2025 Senior Notes prior to maturity. The 2026 Senior Notes are senior unsecured obligations of the Company and are guaranteed by certain of the Company’s domestic subsidiaries.

The 2025 Senior Notes and 2026 Senior Notes are not a registered ~~security~~securities and there are currently no plans to register ~~our Senior Notes~~these notes as ~~a security~~securities in the future. As a result, Rule 3-10 of Regulation S-X promulgated by the SEC is not applicable and no separate financial statements are required for the guarantor ~~subsidiaries.~~subsidiaries of these notes. We may from time to time repurchase our outstanding 2025 Senior Notes or 2026 Senior Notes through tender offers, open market purchases, privately negotiated transactions or otherwise. Such repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors.

For further ~~discussion of~~information on our 2015 Credit Facility, 2025 Senior Notes, and 2026 Senior Notes, refer to “Note 8:6: Debt” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q.

~~We were party~~As of June 30, 2021, we had $75 million remaining available to ~~a $30 million, one-year revolving credit facility with Bank~~repurchase shares of ~~America (the “Chinese Credit Facility”)~~ asour common stock under our existing share repurchase program authorized by our Board of ~~December 31, 2019.~~Directors. During the three and six months ended June 30, 2021, the Company did not repurchase any shares of outstanding common stock under the share repurchase program. The Company ~~terminated this credit facility in~~did not repurchase any shares of outstanding common stock during the three months ended June ~~2020. We had no outstanding borrowings~~30, 2020 under ~~this credit facility at~~ the ~~time of termination or as of December 31, 2019.~~

share repurchase program. During the ~~nine~~six months ended ~~September~~June 30, 2020, we repurchased 4,707,450 shares of our outstanding common stock at an average share price of $24.32 per share, exclusive of fees and commissions, or $115 million in the aggregate under our existing share repurchase program authorized by our Board of Directors. As of September 30, 2020, we had $75 million remaining available to repurchase shares of our common stock under this share repurchase program.aggregate. ~~As discussed above, the~~The terms of our ~~Second Amendment currently prohibits~~2015 Credit Facility were amended to limit the Company from share repurchases during the Leverage Covenant Holiday and the terms of the 2025 Indenture related to the 2025 Senior Notes also impose certain limitations and restrictions on share repurchases.

Our business typically experiences seasonal fluctuations that affect the timing of our annual cash flows related to working capital. In our Experiences business and our Rentals free-to-list model, we generally receive cash from travelers at the time of booking and we record these amounts, net of commissions, on our consolidated balance sheet as deferred merchant payables. We pay the suppliers, or the experience providers and/or property rental owners, ~~and experience providers,~~ after the travelers’ use. Therefore, we generally receive cash from the traveler prior to paying the supplier and this operating cycle represents a source or use of cash to us. During the first half of the year ~~Rentals~~Experiences and ~~Experiences~~Rentals bookings typically exceed the amount of completed ~~stays~~tour-taking and ~~tour-taking,~~stays, resulting in higher cash flow related to working capital, while during the second half of the year, particularly in the third quarter, this pattern reverses and cash flows from these transactions are typically negative. However, this seasonal trend ~~has been~~was negatively and materially impacted ~~during~~by COVID-19’s impact on our business throughout the year of 2020, ~~as cash outflows to suppliers related to deferred merchant payables significantly exceeded cash received from travelers,~~albeit unevenly, primarily reflecting the decline in consumer demand for our products and increased cancellations of ~~reservations due to COVID-19, which continued into~~reservations. Although consumer demand, traveler hotel and rental stays, and travel activities and experiences taken generally remains materially lower than historic levels, these trends have improved during the ~~third~~first half of 2021, particularly in the second quarter of ~~2020. The~~2021, resulting in increased revenues, working capital and positive operating cash flow more akin to typical historical seasonality trends in the first half of the year. However, the ultimate extent and longevity of the COVID-19 pandemic, including variants, and its impact on travel, regional and global markets, and overall economic activity in currently affected countries or globally isremains unknown and impossible to predict with certainty, as such, the impacts on our business, ~~and~~including our operating cash flows, ~~are~~while improving, remain uncertain at this point in time. Other factors may also impact typical seasonal fluctuations, which include further significant shifts in our business mix or adverse economic conditions unrelated to COVID-19 that could result in future seasonal patterns that are different from historical trends. In addition, new or different payment options offered to our customers could impact the timing of cash flows. For example, we introduced a new payment feature in late 2019, which allows our Experiences customers the option to reserve certain experience activities and defer payment until a date no later than two days before the experience date; as a result, this payment option may affect the timing of our future cash flows.

As discussed in “Note 9:7: Income Taxes” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q, we have received Notices of Proposed Adjustments issued by the IRS for tax years 2009 through 2016, as of ~~September~~June 30, ~~2020.~~2021. These proposed adjustments are related to certain transfer pricing arrangements with our foreign subsidiaries, and would result in an increase to our worldwide income tax expense in an estimated range of ~~$105~~$95 million to ~~$115~~$105 million, exclusive of interest expense, at the close of the audit if the IRS prevails. We have disputed these proposed adjustments and intend to continue to defend our position. Although the ultimate timing for resolution of ~~the disputed tax issues~~this is uncertain, any future payments ~~may~~would negatively impact our operating cash flows.

The CARES Act, enacted in March 2020, made tax law changes to provide financial relief to companies as a result of the impact to businesses related to COVID-19. Key income tax provisions of the CARES Act include changes in NOL carryback and carryforward rules, increase of the net interest expense deduction limit, and immediate write-off of qualified improvement property. The CARES Act allowed us to carryback our U.S. federal NOL incurred in 2020, generating an expected tax refund of $48 million, which is recorded in income taxes receivable on our unaudited condensed consolidated balance sheets as of June 30, 2021 and December 31, 2020. This income tax refund is expected to be received during 2021.

We believe that our available cash and cash equivalents will be sufficient to fund our foreseeable working capital requirements, capital expenditures, existing business growth initiatives, debt and interest obligations, lease commitments, and other financial commitments through at least the next twelve months. Our future capital requirements may also include capital needs for acquisitions and/or other expenditures in support of our business strategy, and may potentially reduce our cash balance and/or increase our borrowings under our 2015 Credit Facility or to seek other ~~borrowings.~~financing alternatives.

In addition, our capital requirements may increase due to the continued impact of the COVID-19 pandemic, including any variants, which has ~~already~~ resulted in reduced revenues and operating cash flows for the Company, and the extent and duration to which it may continue to impact the Company’s business isand the travel industry remains unclear. Given the continued uncertainty in the ~~rapidly changing~~uneven market and economic conditions related to the COVID-19 pandemic, we will continue to evaluate the nature and extent of the impact to our liquidity and capital requirements, and therefore our capital structure.

Our cash flows for the ~~nine~~six months ended ~~September~~June 30, ~~2020~~2021 and ~~2019,~~2020, as reflected in our unaudited condensed consolidated statements of cash flows, are summarized in the following table:

	Nine months ended September 30,						Six months ended June 30,
	2020			2019			2021			2020
	(in millions)						(in millions)
Net cash provided by (used in):
Operating activities	$	(180	)	$	364		$	106		$	(148	)
Investing activities		(46	)		(140	)		(26	)		(34	)
Financing activities		349			(30	)		281			561

During the ~~nine~~six months ended ~~September~~June 30, 2021, our primary use of cash was from operations, financing activities (including payment of withholding taxes on net share settlements of our equity awards of $29 million and purchase of Capped Calls of $35 million), and investing activities (including capital expenditures of $25 million). This use of cash was funded primarily with cash on hand, operating cash flow and financing activities, which includes $340 million of proceeds from the issuance of our 2026 Senior Notes, net of financing costs.

During the six months ended June 30, 2020, our primary use of cash was in operations, financing activities (including repurchases of our outstanding common stock at an aggregate cost of $115 million under our existing share repurchase program and payment of withholding taxes on net share settlements of our equity awards of ~~$18~~$17 million), and investing activities (including capital expenditures ~~incurred during the nine months ended September 30, 2020~~ of ~~$46~~$36 million). This use of cash was funded primarily with cash on hand, and ~~cash equivalents, and~~ financing activities, which includes ~~$490~~$696 million in ~~proceeds~~borrowings from ~~the issuance of~~ our ~~Senior Notes,~~2015 Credit Facility, net of financing costs.

During the nine months ended September 30, 2019, our primary use of cash was from operations, financing activities (including payment of withholding taxes on net share settlements of our equity awards of $28 million), and investing activities (including capital expenditures incurred during the nine months ended September 30, 2019 of $60 million and cash used of $118 million in purchases of marketable securities). This use of cash was funded with cash on hand and cash equivalents,Net cash provided by ~~operations, and also investing activities, which consisted of $40 million generated from maturities of marketable securities.~~

~~Net cash used in~~ operating activities for the ~~nine~~six months ended ~~September~~June 30, ~~2020,~~2021, increased by ~~$544~~$254 million when compared to the same period in ~~2019,~~2020, primarily due to ~~a decrease in net income of $327 million and~~an increase in ~~use of~~ working capital of ~~$225~~$250 million, ~~driven by working capital outflows~~ primarily due to payments to travel suppliers related to deferred merchant payables for completed experiences, tours and rentals which significantly exceeded cash received from consumers as a result of a decline in consumer demand due to COVID-19 and its negative impact on our 2020 revenue. This was partially offsetdriven by an increase in deferred merchant payables and deferred revenue due to cash received from ~~trade~~travelers reflecting increased experiences, tours and rental bookings which exceeded our payments to traveler suppliers, and an increase in accounts receivables ~~as cash collected primarily from pre-COVID-19 customer invoices~~and marketing cost accruals, all largely reflective of the increasing consumer demand for ~~services provided significantly exceeded invoices for services provided to customers in~~travel activities during the ~~post-COVID-19 time period, as a result~~second quarter of ~~a decline in consumer demand.~~2021.

Net cash used in investing activities for the ~~nine~~six months ended ~~September~~June 30, ~~2020~~2021 decreased by ~~$94~~$8 million when compared to the same period in ~~2019,~~2020, primarily due to a decrease in ~~net cash generated from the purchases and maturities of marketable securities of $78 million and a decrease in~~ capital expenditures as part of ~~$14 million.~~cost-reduction measures across the business implemented during the first half of 2020 in response to COVID-19.

Net cash provided inby financing activities for the ~~nine~~six months ended ~~September~~June 30, ~~2020 increased~~2021 decreased by ~~$379~~$280 million when compared to the same period in ~~2019,~~2020, primarily due to borrowings onfrom our 2015 Credit Facility of ~~$696~~$700 million, net of financing costs, proceeds from the issuance of our Senior Notes of $490 million, net of financing costs, and a decrease in payment of withholding taxes on net share settlements of equity awards of $10 million during the nine months ended September 30, 2020, partially offset by share repurchasescash used to purchase shares of our common stock under our share repurchase program of $115 million ~~and a repayment on our 2015 Credit Facility of $700 million~~ during the ~~nine~~six months ended ~~September~~June 30, ~~2020.~~2020, both which did not reoccur in 2021, as contrasted to proceeds received from the issuance of our 2026 Senior Notes of $340 million in the first quarter of 2021, net of financing costs, which was partially offset by payments of $35 million for the Capped Calls in connection with our 2026 Senior Notes, which also occurred during the first quarter of 2021.

Contractual Obligations, Commercial Commitments and Off-Balance Sheet Arrangements

As of ~~September~~June 30, ~~2020,~~2021, with the exception ~~of $500 million in long-term debt, including semi-annual interest payments, as a result~~ of the issuance of the 2026 Senior Notes, resulting in an additional $345 million in long-term debt due in April 2026, including semi-annual interest payments with an interest rate of ~~7.000%~~0.25% per annum, ~~due in July 2025,~~ as discussed above, there have

been no material changes outside the normal course of business to our contractual obligations and commercial commitments since December 31, ~~2019.~~2020.

As of ~~September~~June 30, ~~2020,~~2021, other than our contractual obligations and commercial commitments, we did not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of Regulation S-K promulgated by the SEC. Refer to “Liquidity and Capital Resources” in Part II, Item 7. —Management’s Discussion and Analysis of Financial Condition and Results of Operations of our Annual Report on Form 10-K for the year ended December 31, ~~2019~~2020 for a discussion of our contractual obligations and commercial commitments.

In the ordinary course of business, we are party to regulatory and legal matters, including threats thereof, arising out of or in connection with our operations. These matters may involve claims involving patent and other intellectual property rights (including alleged infringement of third-party intellectual property rights), tax matters (including value-added, excise, transient occupancy and accommodation taxes), regulatory compliance (including competition, consumer matters and data privacy), defamation and reputational claims. Periodically, we review the status of all significant outstanding matters to assess any potential financial exposure. When (i) it is probable that an asset has been impaired or a liability has been incurred; and (ii) the amount of the loss can be reasonably estimated, we record the estimated loss in our consolidated statements of operations. We provide disclosures in the notes to the consolidated financial statements for loss contingencies that do not meet both of these conditions if there is a reasonable possibility that a loss may have been incurred that would be material to the consolidated financial statements. We base accruals on the best information available at the time which can be highly subjective. Although occasional adverse decisions or settlements may occur, we do not believe that the final disposition of any of these matters will have a material adverse effect on our business. However, the final outcome of these matters could vary significantly from our estimates. Finally, there may be claims or actions pending or threatened against us of which we are currently not aware and the ultimate disposition of which could have a material adverse effect on us.

We are also under audit by the IRS and various other domestic and foreign tax authorities with regards to income tax and non-income tax matters. We have reserved for potential adjustments to our provision for income taxes that may result from examinations by, or any negotiated agreements with, these tax authorities. Although we believe our tax estimates are reasonable, the final determination of audits could be materially different from our historical income tax provisions and accruals. The results of an audit could have a material effect on our financial position, results of operations, or cash flows in the period for which that determination is made.

By virtue of consolidated income tax returns previously filed with Expedia, we are currently under an IRS audit for the 2009, 2010 and short-period 2011 tax years. We are separately under examination by the IRS for the short-period 2011, 2012 through 2016, and 2018 tax years, ~~under an employment tax audit by the IRS for the 2015 through 2017 tax years,~~ and have various ongoing audits for foreign and state income tax returns. These audits include questioning of the timing and the amount of income and deductions and the allocation of income among various tax jurisdictions. These examinations may lead to proposed or ordinary course adjustments to our taxes. We are no longer subject to tax examinations by tax authorities for years prior to 2009. During the three months ended June 30, 2021, we closed an employment tax audit by the IRS for the 2015 through 2017 tax years. As of ~~September~~June 30, ~~2020,~~2021, no material assessments have resulted, except as noted below regarding our 2009, 2010, and 2011 IRS audit with Expedia and our 2012 through 2016 standalone IRS audit.

In January 2017 and April 2019, as part of the IRS audit of Expedia, we received Notices of Proposed Adjustment from the IRS for the 2009, 2010, and 2011 tax years. Subsequently, in September 2019, as part of Tripadvisor’s standalone audit, we received Notices of Proposed Adjustment from the IRS for the 2012 and 2013 tax years, and in August 2020, we received Notices of Proposed Adjustments from the IRS for the 2014, 2015 and 2016 tax years. These proposed adjustments are related to certain transfer pricing arrangements with our foreign subsidiaries, and would result in an increase to our worldwide income tax expense in an estimated range of ~~$105~~$95 million to ~~$115~~$105 million at the close of the audit if the IRS prevails. The estimated range takes into consideration competent authority relief and transition tax regulations, and is exclusive of deferred tax consequences and interest expense, which would be significant. We disagree with the proposed adjustments and we intend to defend our position through applicable administrative and, if necessary, judicial remedies. Our policy is to review and update tax reserves as facts and circumstances change. Based on our interpretation of the regulations and available case law, we believe the position we have taken with regard to transfer pricing with our foreign subsidiaries is sustainable. In addition to the risk of additional tax for 2009 through 2016 transactions, if the IRS were to seek transfer pricing adjustments of a similar nature for transactions in subsequent years, we would be subject to significant additional tax liabilities. We have requested competent authority assistance under ~~the Mutual Agreement Procedure (“MAP”)~~MAP for tax years 2009 through ~~2013.~~2016. We expect the competent authorities to present a resolution for the 2009 through 2011 tax years in the near future. Upon receipt, we will assess the resolution provided by the competent authorities as well as its impact on our existing income tax reserves for all ~~open~~ subsequent ~~years.~~years which remain open.

In January 2021, we received an issue closure notice relating to adjustments for 2012 through 2016 tax years from HMRC. These proposed adjustments are related to certain transfer pricing arrangements with our foreign subsidiaries and would result in an increase to our worldwide income tax expense in an estimated range of $45 million to $55 million, exclusive of interest expense, at the close of the audit if HMRC prevails. We disagree with the proposed adjustments and we intend to defend our position through

applicable administrative and, if necessary, judicial remedies. Our policy is to review and update tax reserves as facts and circumstances change. Based on our interpretation of the regulations and available case law, we believe the position we have taken with regard to transfer pricing with our foreign subsidiaries is sustainable.

The Organization for Economic Cooperation and Development (“OECD”) has been working on a Base Erosion and Profit Shifting Project, and issued the Action 1 report in 2015 to address the tax challenges arising from digitalization. Since then, the

OECD/G20 Inclusive Framework has issued various guidelines, policy notes, and proposals that if adopted could result in an overhaul of the international taxation system under which our current tax obligations are determined. In July 2021, the OECD/G20 Inclusive Framework announced that a significant majority of countries in the OECD’s Inclusive Framework have agreed in principle to high level aspects of a consensus solution to global tax reform. As the OECD/G20 Inclusive Framework drives toward ~~a consensus long-term solution,~~finalizing the proposal and outlining the implementation plan, several countries ~~have introduced~~continue to impose unilateral digital service tax initiatives which ~~impose~~provide for new types of non-income taxes, including taxes based on a percentage of revenue. The Company is monitoring certain U.S. states and countries in which we do business, such as France, Italy, Spain, and the U.K., which have enacted or proposed similar taxes that will be applicable or are likely to be applicable ~~during 2020.~~to the Company. During ~~the three and nine months ended September 30, 2020, we recorded $1 million and $2 million, respectively, and during~~ both the three and ~~nine~~six months ended ~~September~~June 30, ~~2019,~~2021, we recorded $3$1 million ~~respectively,~~ of digital service tax to general and administrative expense on our unaudited condensed consolidated statement of ~~operations; however, we~~operations. During the three months ended June 30, 2020, digital service tax recorded to general and administrative expense on our unaudited condensed consolidated statement of operations was not material, while this amount was $1 million for the six months ended June 30, 2020. We continue to assess the financial impact of new laws relating to digital services and taxation. Further, as additional U.S. states and international countries introduce unilateral measures we will continue to monitor developments and determine the financial impact of these initiatives to the Company.

As a result of the 2017 Tax Act, foreign earnings may now generally be repatriated back to the U.S. without incurring U.S. federal income tax. Historically, we ~~have~~had asserted our intention to indefinitely reinvest the cumulative undistributed earnings of our foreign subsidiaries. In response to increased cash requirements in the U.S. related to our declaration of a special cash dividend and other strategic initiatives during the fourth quarter of 2019, we determined that we no longer consider ~~$390 million~~all of these foreign earnings to be indefinitely reinvested. ~~During the year ended December 31, 2019,~~As of June 30, 2021, $320 million of our cumulative undistributed foreign earnings were no longer considered to be indefinitely reinvested. As of June 30, 2021, we ~~recorded~~maintained a deferred income tax liability ~~of $1 million~~on our unaudited condensed consolidated balance sheet, which was not material, for the U.S. federal and state income tax and foreign withholding tax liabilities on the cumulative undistributed foreign earnings that ~~are not~~we no longer consider indefinitely reinvested. We intend to indefinitely reinvest $118 million of ~~our~~these foreign earnings in our non-US ~~subsidiaries. Determination~~subsidiaries, which determination of ~~the amount of~~any related unrecognized deferred income tax liability ~~related to these earnings~~ is not practicable.

Refer to “Note 9:7: Income Taxes” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for further information on potential tax contingencies, including current audits by the IRS and various other domestic and foreign tax authorities, and other income ~~tax~~ and non-income tax matters.

There has been no material change in our market risk profile during the six months ended June 30, 2021, or since December 31, 2020. For a discussion of current market conditions and impacts on the Company’s financials resulting from the COVID-19 pandemic, refer to “Note 1: Business Description and Basis of Presentation” in the notes to our unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q, and for further information, Part I, Item 2, "Management's Discussion and Analysis of Financial Condition and Results of Operations,” and to Part II, Item 1A, "Risk Factors”. For additional information about our market risk profile, refer to “Quantitative and Qualitative Disclosures About Market Risk” in Item 7A. in Part II of our Annual Report on Form 10-K for the year ended December 31, 2020.

Market risk refers to the risk of loss arising from adverse changes in stock prices, interest rates and foreign currency exchange rates. We are exposed to market risks primarily due to our international operations, our ongoing investment and financial activities, as well as changes in economic conditions in all significant markets in which we operate ~~as a result of~~which has been heightened during the COVID-19 pandemic. The risk of loss can be assessed from the perspective of adverse changes in our future earnings, cash flows, fair values of our assets, and financial condition. Our exposure to market risk, at any point in time, may include risk, including to any borrowings under our 2015 Credit Facility, or outstanding debt related to our ~~credit facilities~~2025 Senior Notes and ~~any related borrowings,~~2026 Senior Notes, derivative instruments, capped calls, cash and cash equivalents, short term and long term marketable securities, if any, accounts receivable, intercompany receivables/payables, accounts payable and deferred merchant payables denominated in foreign currencies. We have established policies, procedures and internal processes governing our management of market risks and the use of financial instruments to manage and attempt to mitigate our exposure to such risks.

~~There~~ ~~has been no material change~~We expect that we will increase our operations internationally as, or when, COVID-19 restrictions are fully lifted and as international markets continue to reopen. Our exposure to potentially volatile movements in ~~our market risk profile during the nine months ended~~ foreign currency exchange rates will

~~September~~ ~~30, 2020,~~ ~~with the exception of the impacts from the COVID-19 pandemic~~. ~~For a discussion of market conditions and impacts on our financials resulting from the~~ ~~COVID~~-19 ~~pandemic, refer to“Note 1:~~ ~~Business Description and Basis of Presentation” in the notes~~increase as we begin to increase our ~~unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q, and for further information, Part I, Item 2, "Management's Discussion and Analysis of Financial Condition and Results of Operations,” and to Part II, Item 1A, "Risk Factors~~”. ~~For additional information about our market risk profile, refer to “Quantitative and Qualitative Disclosures About Market Risk” in Item 7A. in Part II of our Annual Report on Form 10-K for the year ended December 31, 2019.~~

~~We have significant~~ operations in ~~both~~these international markets. The economic impact to us of foreign currency exchange rate movements is linked to variability in real growth, inflation, interest rates, governmental actions, and other factors. These changes, if material, could cause us to adjust our foreign currency risk strategies. For example, Brexit (pursuant to which the United Kingdom (U.K.) and European Union (E.U.). Many of our operations and those of our business partners are integrated across the U.K. and the E.U. and are highly dependent on the free flow of labor, data, services and goods in those regions. Although the U.K. ceased to be a member of the ~~E.U. on January 31, 2020, pursuant to a process known as Brexit,~~European Union) has caused volatility in currency exchange rates, especially between the U.S. dollar and the British pound. Although, the U.K. and E.U. ~~will continue to work on~~finalized the terms of the departure ~~through a transition period ending~~on December ~~31, 2020. As a result, there remains significant~~24, 2020, certain decisions still need to be made on financial services, among others, and disputes may lead to tariffs being imposed on some goods in the future. Continued uncertainty ~~about the future relationship between the~~regarding our international operations and U.K. and ~~the~~ E.U. ~~The ongoing uncertainty and potential outcomes could negatively~~relations may result in future currency exchange rate volatility which may impact our relationships with our employees, business partners and vendors and could negatively impact our financial performance. In addition, uncertainty could continue to adversely affect consumer confidence, talent acquisition and spending in the U.K. We could face new regulatory costs and challenges when the U.K. does leave the E.U. and U.K. regulations potentially diverge from those of the E.U. including, through the implementation of new U.K. legislation. Since the U.K.’s exit from the E.U. and the terms of that exit are uncertain, we are unable to predict the effect Brexit will have on our business and results of operations.

As of ~~September~~June 30, ~~2020,~~2021, our management, with the participation of our Chief Executive Officer ~~and President~~ and our Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended, or the Exchange Act. Based upon that evaluation, our Chief Executive Officer and ~~President and~~ our Chief Financial Officer concluded that, as of ~~September~~June 30, ~~2020,~~2021, our disclosure controls and procedures were effective in ensuring that material information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s, or the SEC’s, rules and forms, including ensuring that such material information is accumulated and communicated to our management, including our Chief Executive Officer and ~~President and~~ our Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

There were no changes to our internal control over financial reporting that occurred during the quarter ended ~~September~~June 30, ~~2020~~2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. ~~We have not experienced any material impact to our internal controls over financial reporting despite the fact that most of our employees are working remotely due to the COVID-19 pandemic.~~

In the ordinary course of business, we are party to regulatory and legal matters, ~~as well as~~including threats thereof, arising out of, or in connection with our operations. These matters may involve ~~among others,~~claims involving intellectual property rights (including alleged infringement of third-party intellectual property ~~rights,~~rights), tax matters (including value-added, excise, transient occupancy and accommodation taxes), regulatory compliance (including competition and consumer protection matters), defamation and ~~reputation~~reputational claims, ~~tax matters, regulatory compliance,~~ personal injury claims, labor and ~~other claims. Rules~~employment matters and ~~regulations promulgated by~~commercial disputes. Periodically, we review the ~~SEC require~~status of all significant outstanding matters to assess any potential financial exposure. We record the ~~description~~estimated loss in our consolidated statements of ~~material pending legal proceedings, other than ordinary, routine litigation incident~~operations when (i) it is probable that an asset has been impaired or a liability has been incurred; and (ii) the amount of the loss can be reasonably estimated. We provide disclosures in the notes to the ~~registrant’s business, and advise~~consolidated financial statements for loss contingencies that ~~proceedings ordinarily need~~do not meet both of these conditions if there is a reasonable possibility that a loss may have been incurred that would be ~~described if they primarily involve damages claims for amounts (exclusive~~material to the consolidated financial statements. We base accruals on the best information available at the time which can be highly subjective. Although occasional adverse decisions or settlements may occur, we do not believe that the final disposition of ~~interest and costs) not individually exceeding 10%~~any of these matters will have a material adverse effect on our business. However, the ~~current assets~~final outcome of ~~the registrant and its subsidiaries on a consolidated basis. In the judgment of management, none of the pending litigation~~these matters ~~that we are defending involves or is likely to involve amounts of that magnitude. There~~could vary significantly from our estimates. Finally, there may be claims or actions pending or threatened against us of which we are currently not aware and the ultimate disposition of which could have a material adverse effect on us.

~~You should consider carefully~~While we attempt to identify, manage and mitigate risks and uncertainties associated with our business to the extent practical under the circumstances, some level of risk and uncertainty will always be present. Refer to Part I, Item 1A., “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2020 for a description of the risks ~~described below together with all of the other information included in this Quarterly Report as they may impact~~and uncertainties which could materially and adversely affect our business, financial condition, cash flows and results of operations, ~~and/or~~and the trading price of our common stock. In addition to our discussion in the Annual Report, as well as our unaudited condensed consolidated financial ~~condition.~~ statements and the related notes, management’s discussion and analysis of financial condition and results of operations, and other sections of this report, we have provided below additional risk factors regarding the 2026 Senior Notes. The risks and uncertainties described ~~below~~ are not the only ones we face.

~~Risks Related~~ Additional risks and uncertainties not presently known to ~~Our Business and Industry~~

~~The COVID-19 pandemic has materially and adversely affected, and will likely continue to materially and adversely impact our business and financial performance for the foreseeable future~~. COVID-19 has caused material declines in demand within the travel, hospitality, restaurant and leisure industry that has dampened consumer demand for our products and services and has adversely and materially affected our business, financial results and financial condition. The Company's future financial results and liquidity could be impacted by delays in payments of outstanding accounts receivable amounts beyond normal payment terms, travel supplier and restaurant insolvencies, governmental restrictions and mandates, and the impact of any initiatives or programs that the Company may undertake to address financial and operational challenges faced by the Company and its customers. The extent and duration of the impact of the COVID-19 pandemic on our business, financial results and financial condition is highly uncertain and difficult to predict, as the duration and severity of the pandemic is uncertain and cannot be predicted. We expect the pandemic and its effects to continue to have a significant adverse impact on our business for the duration of the pandemic and during the subsequent economic recovery, which could be an extended period of time. Furthermore, capital markets and economies worldwide have also been negatively impacted by the COVID-19 pandemic, and such economic disruption could have a material adverse effect on our business as consumers reduce their discretionary spending.

~~Declines or disruptions in the travel industry have had a material adverse impact on the Company’s business, financial results and financial condition.~~ Many jurisdictions have adopted laws, regulations or decrees intended to address the COVID-19 pandemic, including those implementing travel restrictions, social mobility and distancing requirements and/or restricting access to city centers or popular tourist destinations or limiting accommodation offerings in surrounding areas. Many airlines have also

suspended or limited flights. As the COVID-19 pandemic continues to develop, governments, corporations and other authorities may continue to implement restrictions or policies that adversely impact travel, or reinstate similar restrictions or policies, where previously lifted. Increased and/or prolonged restrictions and regulations such as these could continue to negatively impact our business, financial results and financial condition and could cause the market price of our common stock to decline.

If we are unable to continue to attract a significant amount of visitors to our websites and mobile apps, to cost-effectively convert these visitors into revenue-generating users and to continue to engage our users, our business, financial results and financial condition could be harmed. Our traffic and user engagement could be adversely affected by a number of factors including, but not limited to, inability to provide quality content, inventory or supply to our consumers; declines or inefficiencies in traffic acquisition and reduced awareness of our brands. Certain of our competitors have advertising campaigns expressly designed to drive traffic directly to their websites, and these campaigns may negatively impact traffic to our site. There can be no assurances that we will continue to provide content and products in a manner that meets rapidly changing demand. Any failure to obtain and manage content and products in a cost-effective manner that will engage users, or any failure to provide content and products that are perceived as useful, reliable and trustworthy, could adversely affect user experiences and their repeat behavior, reduce traffic to our websites and negatively impact our business and financial performance.

We rely on internet search engines and application marketplaces to drive traffic to our platform, certain providers of which offer products and services that compete directly with ours. If links to our websites and apps are not displayed prominently, traffic to our platform could decline and our business would be negatively affected. The number of consumers we attract to our platform is due in large part to how and where information from, and links to, our websites are displayed on search engine results pages, or SERPs. The display, including rankings, of search results can be affected by a number of factors, many of which are not in our control. Search engines frequently change the logic that determines the placement and display of the results of a user’s search, such that the purchased or algorithmic placement of links to our websites can be negatively affected. A search engine could alter its search algorithms or results causing our websites to place lower in search query results. For example, Google, a significant source of traffic to our websites, frequently promotes its own competing products in its search results, which has negatively impacted placement of references to our company and our website on the SERP. If a major search engine changes its algorithms in a manner that negatively affects the search engine ranking of our websites or those of our travel partners, or if competitive dynamics impact the cost or effectiveness of SEO or SEM in a negative manner, our business and financial performance would be adversely affected. Furthermore, our failure to successfully manage our SEO and SEM strategies and/or other traffic acquisition strategies could result in a substantial decrease in traffic to our websites, as well as increased costs to the extent we replace free traffic with paid traffic.

We also rely on application marketplaces, or app stores such as Apple’s App Store and Google’s Play, to drive downloads of our apps. In the future, Apple, Google or other marketplace operators may make changes that make access to our products more difficult. For example, Google has entered various aspects of the online travel market, including by establishing a flight metasearch product and hotel metasearch product as well as reservation functionality. Our apps may receive unfavorable treatment compared to the promotion and placement of competing apps, such as the order in which they appear within marketplaces. Similarly, if problems arise in our relationships with providers of application marketplaces, traffic to our site and our user growth could be harmed.

~~We derive a substantial portion of our revenue from advertising and any significant reduction in spending by advertisers on our platforms could harm our business.~~ Our ability to grow advertising revenue with our existing or new advertising partners is dependent in large part on our ability to generate revenue for them relative to other alternatives. Our ability to provide value to our advertising partners depends on a number of factors, including, but not limited to, the following:

~~Any of these or other factors could result in a reduction in demand for our ads, which may reduce the prices we receive for our ads, or cause marketers to stop advertising with~~ us ~~altogether, either of which would negatively affect our revenue and financial results.~~

Click-based advertising revenue accounts for the majority of our advertising revenue. Our pricing for click-based advertising depends, in part, on competition between advertisers. If our large advertisers become less competitive with each other, merge with each other or with our competitors, focus more on per-click profit than on traffic volume, or are able to reduce CPCs, this could have an adverse impact on our advertising revenue which would, in turn, have an adverse effect on our business and financial results.

~~We rely on a relatively small number of significant advertising partners and any reduction in spending by or loss of these partners could seriously harm our business.~~ ~~For the year ended December 31, 2019, our two most significant advertising partners,~~

Expedia and Booking (and their subsidiaries), accounted for a combined 33% of total revenue. If any of our significant advertising partners were to cease or significantly curtail advertising on our websites, we could experience a rapid decline in our revenue over a relatively short period of time which would have a material impact on our business.

Our business depends on a strong brand and any failure to maintain, protect or enhance our brand could hurt our ability to retain and expand our base of consumers and partners, the frequency with which consumers utilize our products and services and our ability to attract advertisers and partners. Our ability to maintain and protect our brand depends, in part, on our ability to maintain consumer trust in our products and services and in the quality, integrity, reliability of usefulness of the content and other information found on our platform. If consumers do not view the content on our website to be useful and reliable, they may seek other sources to obtain the information they are looking for and may not return to our platform as often or at all. We dedicate significant resources to protecting the quality of our content, primarily through our content guidelines, computer algorithms and human moderators that are focused on identifying and removing inappropriate, unreliable or deceptive content.

Media, legal, or regulatory scrutiny of our user content, advertising practices, and other issues may adversely affect our reputation and brand. Negative publicity about our company, including our content, technology and business practices, could diminish our reputation and confidence in our brand, thereby negatively affecting the use of our products and our financial performance. For example, in the past, certain media outlets have alleged that we have improperly filtered or screened reviews, that we have not properly verified reviews, or that we ~~manipulate reviews, ranking and ratings in favor of our advertisers. We expend significant resources to ensure the integrity of our reviews and to ensure that the most relevant reviews~~currently believe are available to our consumers; we do not establish rankings and ratings in favor of our advertisers. In addition, regulatory inquiries or investigations require management time and attention and could result in further negative publicity, regardless of their merits or ultimate outcomes.

In addition, unfavorable publicity regarding, for example, our practices relating to privacy and data protection could adversely affect our reputation with our consumers and our partners. Such negative publicityimmaterial may also ~~could have an adverse effect on the size, engagement, and loyalty of our user base and result in decreased revenue.~~

~~Consumer adoption and use of mobile devices creates new challenges if we are unable to operate effectively on these platforms or our products for such devices are not compelling,~~impair our business, ~~may be adversely affected.~~ Widespread adoption of mobile devices is driving substantial online traffic and commerce to mobile platforms and we anticipate that use of these devices will continue to grow. The functionality and user experience associated with these alternative devices may make the use of our platform through such devices more difficult. Our websites and apps, when utilized on mobile phone devices, have historically monetized at a significantly lower rate than desktops and advertising opportunities are more limited on these devices. Additionally, consumer purchasing patterns differ on these devices. For example, accommodation reservations made on a mobile device are generally for shorter lengths of stay and are not made as far in advance. Mobile consumers may also be unwilling to download multiple apps providing similar services or contribute high quality content through multiple devices. We expect that the ways in which consumers engage with our platform will continue to change over time as consumers increasingly engage via alternative devices.

It is important for us to develop and maintain effective platforms to drive adoption and user engagement by providing consumers with an appealing, easy-to-use experience. As new devices and platforms are continually being released, it is difficult to predict the problems we may encounter in adapting our products and services and we may need to devote significant resources to the creation, support and maintenance of competitive new products. If we are unable to continue to rapidly innovate and create appealing, user-friendly and differentiated offerings and efficiently and effectively advertise on these platforms, we could lose market share and our business, future growth and financial results could be adversely affected.

Our success will also depend on the interoperability of our products with a range of technologies, systems, networks and standards and our ability to create, maintain and develop relationships with key participants in related industries, some of which may be our competitors. For example, Google’s Android, and Apple’s iPhone are the leading smartphones in the world and our products need to synergistically function on their respective operating systems in order to create a positive user experience on those devices. However, Google could leverage its Android operating system to give its travel services a competitive advantage, either technically, with prominence on its Google Play app store or within its mobile search results. Similarly, Apple obtained a patent for “iTravel,” a mobile app that would allow a traveler to check in for travel reservation, and Apple’s iPhone operating system includes “Wallet,” a virtual wallet app that holds tickets, boarding passes, coupons and gift cards. Apple has substantial market share in the smartphone category and controls integration of offerings, including travel services, into its mobile operating system. Apple may use or expand iTravel, Wallet, Siri (Apple’s voice recognition “concierge” service), Apple Pay (Apple’s mobile payment system) or another mobile app or functionality as a means of entering the travel reservations marketplace. To the extent Google or Apple use their mobile operating systems, app distribution channels or, in the case of Google, search services, to favor their own travel service offerings, there may be an adverse effect on our ability to compete in the mobile space.

We may not be successful in developing products that operate effectively with these technologies, systems, networks and standards or in creating, maintaining and developing relationships with key participants in related industries. If we experience difficulties or increased costs in integrating our products into alternative devices or if manufacturers do not include our products in their devices, make changes that degrade the functionality of our products, give preferential treatment to competitive products or prevent us from delivering advertising, our user growth and financial results may be harmed.

~~Declines or disruptions in the economy in general and travel industry, in particular, could adversely affect our businesses, financial results and the market price of our common stock.~~ Sales of travel services tend to decline or grow more slowly during economic downturns when consumers engage in less discretionary spending, are concerned about unemployment or economic weakness, have reduced access to credit or experience other concerns that reduce their ability or willingness to travel. The global economy may be adversely impacted by events beyond our control including actual or threatened terrorism, regional hostilities or instability, natural disasters, political instability and health concerns (including epidemics or pandemics), significant increases in energy costs, tightening of credit markets and declines in consumer confidence. The uncertainty of macro-economic factors and their impact on consumer behavior makes it more difficult to forecast industry and consumer trends and the timing and degree of their impact on our markets and business, which in turn could adversely affect our ability to effectively manage our business.

We have significant operations in both the U.K. and the E.U. and those operations are highly integrated across the U.K. and the E.U. and are highly dependent on the free flow of labor and goods in those regions. Although the U.K. ceased to be a member of the E.U. on January 31, 2020, pursuant to a process known as Brexit, the U.K. and the E.U. continue to work on the terms of the departure through a transition period ending December 31, 2020. There remains significant uncertainty about the future relationship between the U.K. and the E.U. The ongoing uncertainty and potential outcomes could negatively impact our partner and customer relationships. This uncertainty could continue to adversely affect consumer confidence and spending in the U.K. Since the final terms of that exit and the U.K. regulatory environment are uncertain, we are unable to predict the effect Brexit will have on our business and results of ~~operations.~~

Economic downturn and adverse market conditions may also negatively impact our partners, our partners’ access to capital, cost of capital and ability to meet liquidity needs. These challenges faced in a prolonged economic downturn or deterioration in the travel industry could adversely impact our business, financial results and financial condition. The extent and duration of such impacts remain largely uncertain and dependent on future developments that cannot be accurately predicted at this time.

~~We operate in an increasingly competitive global environment and our failure to compete effectively could reduce our market share and harm our financial performance.~~ We compete with different types of companies in the various markets and geographies where we operate, including large and small companies in the travel space as well as broader service providers. We face competition for content, consumers, advertisers, online travel search and price comparison services and online reservations. We compete globally with both online and offline, established and emerging, providers of travel, lodging, experiences and restaurant reservation and related services. The markets for the services we offer are intensely competitive and current and new competitors can launch new services at a relatively low cost. More specifically:

There has been a proliferation of new channels through which service providers can offer accommodations, experiences and restaurant reservations. Metasearch services may lower the cost for new companies to enter the market by providing a distribution channel without the cost of promoting the new entrant’s brand to drive consumers directly to its website. Some of our competitors offer a variety of online services and, in some cases, are willing to make little or no profit on a transaction, or offer travel services at a loss, in order to gain market share. Many of our competitors have significantly greater financial, technical, marketing and other resources and have more expertise in developing online commerce and facilitating internet traffic as well as larger client bases. They also have the ability to leverage other aspects of their business to enable them to compete more effectively.

In addition, Google and other large, established companies with substantial resources and expertise have launched travel or travel-related search, metasearch and/or reservation booking services and may create additional inroads into online travel. Google's metasearch products, Google Hotel Ads and Google Flights, are growing rapidly and have achieved significant market share in a relatively short time. Many of our competitors continue to expand their voice and artificial intelligence capabilities, which may provide them with a competitive advantage in travel.

We compete with certain companies that we also do business with, including certain of our advertising partners and related parties. The consolidation of our competitors and travel partners may affect our relative competitiveness and our travel partner relationships. Competition and consolidation could result in higher traffic acquisition costs, reduced margins on our advertising services, loss of market share, reduced customer traffic to our websites and reduced advertising by travel companies on our websites.

~~We rely on information technology to operate our business and remain competitive, and any failure to adapt to technological developments or industry trends could harm our businesses.~~ ~~Our future success depends on our ability to continuously improve and upgrade our systems and infrastructure to meet rapidly evolving consumer trends and demands while at the same time maintaining the~~

reliability and integrity of our systems and infrastructure. We may not be able to maintain or replace our existing systems or introduce new technologies and systems as quickly as we would like or in a cost-effective manner. We may not be successful, or as successful as our competitors, in developing technologies and systems that operate effectively across multiple devices and platforms in a way that is appealing to our consumers. The emergence of alternative or new devices and the emergence of niche competitors who may be able to optimize products, services or strategies for such platforms will require additional investment in technology. New developments in other areas could also make it easier for competitors to enter our markets due to lower up-front technology costs.

~~If we do not continue to innovate and provide products, services and features that are useful to users, we may not remain competitive, and our business and financial performance could suffer.~~ Our competitors are continually developing innovations in services and features. As a result, we are continually working to improve the user experience on our platform in order to engage our consumers and drive user traffic and conversion rates for our travel partners. We have invested, and expect to continue to invest, significant resources in developing and marketing these innovations. We can give no assurances that the changes we make will yield the benefits we expect and will not have unintended or adverse impacts. If we are unable to continue offering innovative products and services and quality features that users want to use, existing consumers may become dissatisfied and use competitors’ offerings and we may be unable to attract additional consumers, which could adversely affect our business and financial performance.

~~Our dedication to making the user experience our highest priority may cause us to prioritize rapid innovation and user experience over short-term financial results.~~ We strive to create the best experience for our consumers. We believe that in doing so we will increase our traffic conversion (i.e., visitors converting into clicks and/or bookings), revenue and financial performance. We have taken actions in the past, and may continue to take actions in the future, that have the effect of reducing our short-term financial results if we believe the actions benefit the overall user experience. These decisions may not produce the long-term benefits we expect, new or enhanced products may fail to engage consumers and/or we may be unsuccessful in our efforts to monetize these initiatives, in which case our relationships with consumers and travel partners, and our business and financial performance could be harmed.

We are dependent upon the quality of traffic in our network to provide value to our partners, and any failure in our ability to deliver quality traffic and/or the metrics to demonstrate the value of the traffic could have a material adverse effect on the value of our websites to our partners and adversely affect our revenue. We use technology and processes to monitor the quality of the internet traffic that we deliver to our partners and have identified metrics to demonstrate the quality of that traffic and identify low quality clicks such as non-human processes, including robots, spiders, the mechanical automation of clicking and other types of invalid clicks or click fraud. Even with such monitoring in place, there is a risk that a certain amount of low-quality traffic will be delivered to such online advertisers. Such low-quality or invalid traffic may be detrimental to our relationships with partners and could adversely affect our advertising pricing and revenue.

~~We rely on assumptions and estimates and data to calculate certain of our key metrics, and real or perceived inaccuracies in such metrics may harm our reputation and negatively affect our business.~~ Certain metrics are key to our business; as both the industry in which we operate and our businesses continue to evolve, so too might the metrics by which we evaluate our businesses. While the calculation of the metrics we use is based on what we believe to be reasonable estimates, our internal tools are not independently verified by a third party and have a number of limitations; furthermore, our methodologies for tracking these metrics may change over time. For example, a single person may have multiple accounts or browse the internet on multiple browsers or devices, some consumers may restrict our ability to accurately identify them across visits, some mobile apps automatically contact our servers for regular updates with no user action, and we are not always able to capture user information on all of our platforms. As such, the calculations of our unique users may not accurately reflect the number of people actually visiting our platforms. If the internal tools we use to track these metrics under-count or over-count performance or contain algorithm or other technical errors, the data we report may not be accurate. We continue to improve upon our tools and methodologies to capture data; however, the improvement of our tools and methodologies could cause inconsistency between current data and previously reported data, which could confuse investors or lead to questions about the integrity of our data. Finally, we may, in the future, identify new or other metrics that enable us to more accurately evaluate our business. Accordingly, investors should not place undue reliance on these metrics.

~~We rely on the performance of highly skilled personnel and if we are unable to retain or motivate key personnel or hire, retain and motivate qualified personnel our business would be harmed.~~ In particular, the contributions of Stephen Kaufer, our co-founder, Chief Executive Officer and President, the contributions of key senior management and the contributions of software engineers and other technology professionals are critical to our overall management and the success of our business. We cannot ensure that we will be able to retain the services of our existing key personnel and the loss of one or more of our key personnel could seriously harm our business. We do not maintain any key person life insurance policies.

~~During the second quarter of 2020, we~~ ~~reduced (or are in the process of reducing) our headcount by more than 900 employees. This reduction in workforce results in the loss of~~ ~~institutional knowledge, relationships, or expertise for critical roles. This reduction could also have a negative impact on employee morale and~~ productivity, make it more difficult to retain valuable key employees, divert attention from operating our business, create personnel capacity constraints and hamper our ability to grow, develop innovative products and compete, any of which could ~~impede our ability to operate or meet strategic objectives. As travel recovers from the COVID-19 pandemic, we may need to replace some or all of those roles with qualified individuals, which is typically a time-consuming process. We compete with companies that have far greater financial resources than we do as well as companies that~~

promise short-term growth opportunities and/or other benefits. If we do not succeed in attracting well-qualified employees or retaining or motivating existing employees, our business would be adversely affected.

~~Acquisitions, investments, significant commercial arrangements and/or new business strategies could present new challenges and risks and disrupt our ongoing business.~~ We have acquired, invested in and/or entered into significant commercial arrangements with a number of businesses in the past and our future growth may depend, in part, on future acquisitions, investments, commercial arrangements and/or changes in business strategies. Such endeavors may involve significant risks and uncertainties, including, but not limited to, the following:

We have invested, and may in the future invest, in privately-held companies. Such investments are inherently risky and our ability to liquidate any such investments is typically difficult. Valuations of such privately-held companies are inherently complex and uncertain due to the lack of liquid market for the companies’ securities. We cannot assure you that these investments will be successful or that such endeavors will result in the realization of the synergies, cost savings and innovation that may be possible within a reasonable period of time, if at all. We could lose the full amount of our investments; any impairment of our investments could have a material adverse effect on our financial results.

~~We are a global company that operates in many different jurisdictions inside and outside the U.S. and these operations expose us to additional risks.~~ Many regions have different economic conditions, languages, currencies, legislation, regulatory environments, levels of political stability, levels of consumer expectations, and use of the internet for commerce. We are subject to risks typical of global businesses, including, but not limited to, the following:

Our strategy includes continued expansion in existing markets and potentially new markets. In addition to the risks mentioned above, international markets have strong local competitors with established brands and travel service providers or relationships that may make expansion in certain markets difficult and costly and take more time than anticipated. In some markets, legal and other regulatory requirements may prohibit or limit participation by foreign businesses, such as by making foreign ownership or management of internet or travel-related businesses illegal or difficult or may make direct participation in those markets uneconomic, which could make our entry or expansion in those markets difficult or impossible, require that we work with a local partner or result in higher operating costs. If we are unsuccessful in expanding in existing and potentially new markets and effectively managing that expansion, our business and financial results could be adversely affected.

We are regularly subject to claims, lawsuits, government investigations, and other proceedings which may result in adverse outcomes and, regardless of the outcome, legal costs, diversion of management resources, injunctions or damage awards, and other negative results. ~~It is possible that a resolution of one or more such proceedings could result in substantial damages, fines or penalties that could adversely affect our business, financial results~~ or financial position. These proceedings could also result in reputational harm, criminal sanctions or consent decrees, the release of confidential information or orders preventing us from offering certain features, functionalities, products, or services, requiring a change in our business practices. Any of these consequences could adversely affect our business and financial results.condition.

~~A failure to comply with current laws, rules and regulations or changes to such laws, rules and regulations and other legal uncertainties may adversely affect our business or financial results.~~ Our business and financial results could be adversely affected by unfavorable changes in or interpretations of existing laws, rules and regulations or the promulgation of new laws, rules and regulations applicable to us and our business, including those relating to internet and online commerce, internet advertising, consumer protection, intermediary liability, data security and privacy and rental licensing and listing requirements. These laws continue to evolve. For example, there is, and will likely continue to be, an increasing number of laws and regulations pertaining to internet and online commerce and liability for information retrieved from or transmitted over the internet. In addition, the growth and development of online commerce may prompt calls for more stringent consumer protection laws and more aggressive enforcement efforts, data privacy and industry-specific laws and regulations. Further, our Rentals business has been and continues to be subject to regulatory developments globally that affect the rental industry and the ability of companies like us to list those rentals online, such as (i) statutes or ordinances that prohibit or limit property owners and managers from renting certain properties on a short-term basis, (ii) fair housing or other laws governing whether and how properties may be rented, and (iii) homeowners, condominium and neighborhood associations adopting or considering adopting rules that prohibit or restrict property owners and managers from short-term rentals. Operating in this dynamic regulatory environment requires significant management attention and financial resources. The failure of our businesses to comply with these laws and regulations could result in fines and/or proceedings against us by governmental agencies, regulatory authorities, courts and/or consumers, which if material, could adversely affect our business, financial condition and financial results.

The promulgation of new laws, rules and regulations, or the new interpretation of existing laws, rules and regulations, could require us to change certain aspects of our business, operations and relationships to ensure compliance, which could decrease demand for services, reduce revenues, increase costs and/or subject the Company to additional liabilities. For example, many jurisdictions have adopted, and many jurisdictions are considering adopting, privacy rights and consumer protections for their residents, which legislation will continue to change the landscape for the use and protection of data and could increase the cost and complexity of delivering our services. Unfavorable changes could decrease demand for products and services, limit marketing methods and capabilities, impede development of new products, require significant management time, increase costs and/or subject us to additional liabilities. Violations of these laws and regulations could result in penalties, criminal sanctions and/or negative publicity against us, our officers or our employees and/or restrictions on the conduct of our business.

~~We cannot be sure that our intellectual property is protected from copying or use by others.~~ Our websites rely on content as well as proprietary brands and technology. We protect our content, brands and technology by relying on a combination of trademarks, copyrights, trade secrets, and confidentiality agreements. Even with these precautions, it may be possible for a party to copy or obtain and use our content, brands or technology without authorization or to independently develop similar content, brands or technology. Any misappropriation or violation of our rights could have a material adverse effect on our business.

Effective intellectual property protection is expensive to develop and maintain and may not be available in every jurisdiction in which our services are available. Policing unauthorized use of our intellectual property is difficult and expensive; in certain jurisdictions, we may be unable to protect our intellectual property adequately against unauthorized third-party copying or use. We cannot be sure that the steps we have taken will prevent misappropriation or infringement of our intellectual property. Furthermore, we may need to go to court or other tribunals or administrative bodies in order to enforce our rights, to protect our trade secrets or to determine the validity and scope of the rights of others. These proceedings might result in substantial costs and diversion of resources and management attention. Our failure to protect our intellectual property in a cost-efficient or effective manner could have a material adverse effect on our business.

We currently license and incorporate into our websites technologies and content from third parties. As we continue to introduce new services that incorporate new technologies and content, we may be required to license additional technology or content. We cannot be sure that such technology or content will be available on commercially reasonable terms, if at all.

Our processing, storage and use of personal information and other data subjects us to additional laws and regulations and failure to comply with those laws and regulations could give rise to liabilities. The security of data when engaging in electronic commerce is essential to maintaining consumer and service provider confidence in our services. We are subject to a variety of laws in the U.S. and abroad regarding privacy and the storing, sharing, use, processing, disclosure and protection of personal information, the scope of which are changing, subject to differing interpretations, and may be inconsistent between countries or conflict with other existing laws. The regulatory framework for privacy issues worldwide is currently in flux and is likely to remain so for the foreseeable future. In addition, practices regarding the collection, use, storage, transmission and security of personal information by companies operating over the internet have recently come under increased public scrutiny.

Implementing and complying with these laws and regulations may be more costly or take longer than we anticipate, or could otherwise affect our operations. Any failure or perceived failure by us to comply with our privacy policies, privacy-related obligations to consumers or other third parties, or privacy-related legal obligations, may result in governmental enforcement actions that could harm our reputation and cause our users and travel partners to lose trust in us, any of which could have an adverse effect on our business, brand, market share and financial results.

We are subject to risks ~~associated with processing credit card~~relating to our 2026 Senior Notes.

During the first quarter of 2021, we adopted new accounting guidance issued by the FASB which simplifies the accounting for convertible debt instruments by reducing the number of accounting models and ~~other payment transactions and failure to manage those risks may subject us to fines, penalties and additional costs and could have a negative impact on our business.~~ ~~We accept payments from consumers and travel partners using a variety~~the number of methods, including credit card, debit card, direct debit from a customer’s bank account, and invoicing. We are subject to regulations and compliance requirements, including obligations to implement enhanced authentication processes. We rely on third parties to provide certain payment methods and payment processing services and our businessembedded conversion features that could be ~~disrupted~~recognized separately from the primary contract. The new accounting guidance requires a convertible debt instrument to be accounted for as a single liability measured at its amortized cost, as long as no other features require bifurcation and recognition as derivatives. The new accounting guidance, among other things, requires an entity to use the if-converted method in the diluted earnings per share calculation for convertible instruments. Under the if-converted method, diluted earnings per share would generally be calculated assuming that all the notes were exchanged solely into shares of common stock at the beginning of the reporting period, unless the result would be anti-dilutive. The application of the if-converted method may reduce our reported diluted earnings per share, if ~~these companies become unwilling or unable~~any.

Furthermore, if any of the conditions to provide these services to us. We are also subject to payment card association operating rules, including data security rules, certification requirements, and rules governing electronic funds transfers, which could change or be reinterpreted to make it difficult or impossible for us to comply. We are also subject to a numberthe conversion of other laws and regulations relating to payments, money laundering, international money transfers and privacy and information security. These laws, regulations and/or requirements result in significant costs and, yet, we may still be susceptible to fraudulent activity. If we fail to comply with these rules or requirements or if our data security systems are breached or compromised,the 2026 Senior Notes is satisfied, then we may be ~~liable for card issuing banks’ costs, subject~~required under applicable accounting standards to ~~fines, penalties~~reclassify the liability carrying value of the 2026 Senior Notes as a current, rather than a long-term, liability. This reclassification could be required even if no noteholders exchange their 2026 Senior Notes and ~~higher transaction fees, and/~~could materially reduce our reported working capital.

Holders of our 2026 Senior Notes may convert the 2026 Senior Notes after the occurrence of certain dates or ~~lose our ability~~events. Refer to accept credit and debit card payments, process electronic funds transfers, or facilitate other types of online payments. In addition, for certain payment methods, including credit and debit cards, we pay interchange and other fees, which may increase over time and raise our operating costs and lower profitability.“Note 6: Debt

~~System security issues, data protection breaches, cyberattacks and system outage issues could disrupt our operations or services provided~~” in the notes to our ~~consumers, and any such disruption could damage~~unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form 10-Q for further information on our ~~reputation and adversely affect our business, financial results and share price.~~ Our reputation and ability to attract, retain and service our consumers and travel partners is dependent upon the reliable performance and security of our computer systems and those of third parties we utilize in our operations. Significant security issues, data breaches, cyberattacks and outages, interruptions or delays, in our systems or third party systems upon which we rely, could impair our ability to display content or process transactions and significantly harm our business. Breaches of our security measures or the accidental loss, inadvertent disclosure or unapproved dissemination of proprietary information or sensitive or confidential data about us, our consumers or our travel partners, could expose us, our users and travel partners to a risk of loss or misuse of this information, damage our brand and reputation or otherwise harm our business and financial performance and could result in government enforcement actions and litigation and potential liability for us. The costs of enhancing infrastructure to attain improved stability and redundancy may be time consuming and expensive and may require resources and expertise that are difficult to obtain. In addition, to the extent that we do experience a data breach, remediation may be costly and we may not have adequate insurance to cover such costs.

Computer programmers and hackers also may be able to develop and deploy viruses, worms, ransomware and other malicious software programs that attack our products or otherwise exploit any vulnerabilities in our systems, or attempt to fraudulently induce our employees, consumers, or others to disclose passwords or other sensitive information or unwittingly provide access to our systems or data. In addition, sophisticated hardware and operating system software and applications that we produce or procure from third parties may contain defects in design or manufacture, including “bugs” and other problems that could unexpectedly interfere with the operation2026 Senior Notes. Settlement of the system. We may need to expend significant resources to protect against security breaches or to investigate and address problems caused by cyber or other security problems. Failure to adequately protect against attacks or intrusions, whether for our own systems or systems of vendors, could expose us to security breaches that could have an adverse impact on our financial performance.

Much of our business is conducted with third party partners and vendors. A security breach at such third party could be perceived by consumers as a security breach of our systems and could result in negative publicity or reputational damage, expose us to risk of loss or litigation and subject us to regulatory penalties and sanctions. In addition, such incidents may also result in a decline in our user base or engagement levels.

Media coverage of data breaches and public exposure of consumer data rights has increased, in part because of the rise of enforcement actions, investigations and lawsuits. Similarly, the increase in privacy activist groups is likely to give rise to further scrutiny, investigative actions and exposés. Security breaches could result in negative publicity, damage to reputation, exposure to risk of loss and possible liability due to regulatory penalties and sanctions. As this focus and attention on privacy and data protection increases, we also risk exposure to potential liabilities and costs resulting from the compliance with, or any failure to comply with, applicable legal requirements, conflicts among these legal requirements or differences in approaches to privacy and security. Security breaches could also cause travelers and consumers to lose confidence in our data security, which would have a negative effect on the value of our brand.

~~Evolving guidance on use of "cookies" and similar technology could negatively impact the way we do business.~~ Cookies, or text files stored on users’ web browsers, are common tools used by thousands of websites, including ours, to store or gather information, improve site security and market to consumers. Cookies and similar technologies are valuable tools for websites and apps to improve the customer experience and increase conversion on their websites. Many countries have adopted data protection laws and regulations governing the use of cookies and other similar tracking technologies by websites and app developers. Such regulations could limit our ability to serve certain customers in the manner we currently do, including with respect to retargeting or personalized advertising, impair our ability to improve and optimize performance on our websites, negatively affect a consumer's experience using our websites and negatively impact our business. Equally, privacy has been the impetus behind industry’s move towards a cookie-less online ecosystem which poses a potential risk to our online behavioral advertising strategy.

~~We have indebtedness which~~2026 Senior Notes could adversely affect our ~~business and financial condition.~~ ~~With respect to the Senior Notes, we~~liquidity.

We are subject to risks relating to ~~our existing or potential indebtedness that include:~~

~~It is possible that we may need to incur additional indebtedness in~~ the ~~future. The terms of our 2015 Credit Facility and~~Capped Calls.

In connection with the 2026 Senior Notes, ~~allow us~~we entered into privately negotiated Capped Calls to ~~incur additional debt subject~~reduce potential dilution to ~~certain limitations and approvals; however, pursuant to the 2015 Credit Facility,~~our common stock and/or offset cash payments we have pledged our assets, including the equity of our subsidiaries. As a result, there is no assurance that additional financing will be available to us on terms favorable to us, if at all. In addition, if new debt is added to the then existing debt levels, the risks described above could intensify.

Our 2015 Credit Facility requires us to meet certain financial covenants and our 2015 Credit Facility and the Indenture impose certain covenants on the Company and our operations. Failure to meet these financial covenants and comply with these covenants could have a material adverse effect on our business. ~~The agreements related to the 2015 Credit Facility and Senior Notes contain various covenants, including those that limit our ability to, among other things:~~

In addition, our 2015 Credit Facility requires that we meet certain financial tests, including a minimum liquidity threshold and/or leverage ratio test. These covenants may limit our ability to optimally operate our business. Any failure to comply with the restrictions of our 2015 Credit Facility or our Senior Notes may result in an event of default under the agreements governing such debt instruments and such default may allow the creditors to accelerate the debt incurred thereunder. In addition, lenders under the 2015 Credit Facility may be able to terminate any commitments they had made to supply us with further funds.

~~We may have future capital needs and may not be able to obtain additional financing on acceptable terms.~~ Pursuant to the 2015 Credit Facility, we have agreed to pledge all of our assets, including the equity interests of our subsidiaries. This agreement also includes restrictive covenants that may limit our ability to secure additional financing in the future on favorable terms, if at all. Our ability to secure additional financing will also depend upon our future operating performance, which is subject to then prevailing general economic and credit market conditions, and financial, business and other factors, many of which are beyond our control.

~~Our financial results are difficult to forecast; they have fluctuated in the past and will likely fluctuate in the future.~~ ~~Our financial results in any given quarter can be influenced by numerous factors, many of which we are unable to predict or are outside of our control, including:~~

~~As a result, you should not rely upon our quarterly financial results as indicators of future performance.~~

If we are unable to successfully maintain effective internal control over financial reporting, investors may lose confidence in our reported financial information and our business and share price may be adversely impacted. As a public company, we are required to maintain internal control over financial reporting and our management is required to evaluate the effectiveness of our internal control over financial reporting as of the end of each fiscal year. If we are not successful in maintaining effective internal control over financial reporting, there could be inaccuracies or omissions in the financial information we file with the SEC. Additionally, even if there are no inaccuracies or omissions, we could be required to publicly disclose our management’s conclusion that our internal control over financial reporting or disclosure controls and procedures are not effective. These events could cause investors to lose confidence in our reported financial information, result in increased costs to remediate any deficiencies, attract regulatory scrutiny or lawsuits that could be costly to resolve and distract management’s attention, limit our ability to access the capital markets, adversely impact our stock price, or cause our stock to be delisted from Nasdaq or any other securities exchange on which we are then listed.

~~Our effective income tax rate is impacted by a number of factors that could have a material impact on our financial results and could increase the volatility of those results.~~ Due to the global nature of our business, we are subject to income taxes in the U.S. and other foreign jurisdictions. In the event we incur taxable income in certain jurisdictions but incur losses in other jurisdictions, we generally cannot offset the income from one jurisdiction with the loss from another. This lack of flexibility could affect our effective income tax rate. Furthermore, significant judgment is required to calculate our worldwide provision for income taxes and depends on our ability to operate our business in a manner consistent with our corporate structure and intercompany arrangements. In the ordinary course of our business, there are many transactions and calculations where the ultimate tax determination is uncertain.

Our future income tax rates could be affected by a number of matters outside of our control, including but not limited to changes in the mix of earnings in countries with differing statutory tax rates, changes in the valuation of deferred tax assets or accounting for share-based compensation. If our effective income tax rates were to increase, our financial results and cash flows would be adversely affected.

Application of U.S. state and local or international tax laws, changes in tax laws or tax rulings, or the examination of our tax positions, could materially affect our financial position and results of operations. As an international business, we are subject to income taxes and non-income-based taxes in the U.S. and various other international jurisdictions. Tax laws are subject to change as new laws are passed and new interpretations of the laws are issued or applied. Due to economic and political conditions, tax rates and tax regimes may be subject to significant change and the tax benefits that we intend to eventually derive could be undermined due to changing tax laws. Governments are increasingly focused on ways to increase tax revenues, which has contributed to more aggressive positions taken by tax authorities and an increase in tax legislation. Any such additional taxes or other assessments may bemust make in excess of ~~our current tax provisions or may require us to modify our business practices~~the principal amount, in ~~order to reduce our exposure to additional taxes going forward,~~each case, upon any conversion of which could have a material adverse effect on our business, results of operations and financial condition. Any changes to international tax laws or any additional reporting requirements may increase the complexity and costs associatedSenior Notes, with ~~tax compliance and adversely affect our cash flows and results of operations~~

The OECD has been working on a Base Erosion and Profit Shifting Project and has issued various reports, guidelines, policy notes, and proposals that if adopted could result in an overhaul of the international taxation system under which our current tax obligations are determined. In response, several countries have introduced unilateral digital service tax initiatives which impose new types of non-income taxes, including taxes based on a percentage of revenue. We recorded an estimate of $2 million and $3 million for digital service tax to general and administrative expense on our unaudited condensed consolidated statement of operations during the nine months ended September 30, 2020 and 2019, respectively; however, we continue to assess the financial impact of these new laws.

We are routinely under audit by federal, state and foreign taxing authorities. The ultimate outcome of these examinations (including the IRS audit described below) cannot be predicted with certainty but could be materially different from our income tax provisions and accruals and could have a material effect on our results of operations or cash flows in the period or periods for which that determination is made. Should the IRS or other taxing authorities assess additional taxes as a result of examinations, we may be required to record charges to our operations, which could harm our operating results and financial condition.

~~Changes in the tax treatment of companies engaged in e-commerce may adversely affect the commercial use of our sites and our financial results.~~ Tax authorities at the international, federal, state and local levels are currently reviewing the appropriate treatment of companies engaged in e-commerce and it is possible that various jurisdictions may attempt to levy additional or new sales, income or other taxes relating to our activities. For example, Congress is considering various approaches to legislation that would require companies engaged in e-commerce to collect sales tax on internet revenue and a growing number of U.S. states and certain foreign jurisdictions have adopted or are considering proposals to impose obligations on remote sellers and online marketplaces to collect taxes on their behalf. Additionally, the U.S. Supreme Court’s ruling in South Dakota v. Wayfair Inc., in which a Court reversed longstanding precedent that remote sellers are not required to collect state and local sales taxes, may have an adverse impact on our business. ~~Also, as described in more detail above, certain U.S. states and countries in which we do business have enacted or proposed digital services tax initiatives.~~ ~~New or revised international, federal, state or local tax regulations or court decisions may subject us or~~

our customers to additional sales, occupancy, income and other taxes. We cannot predict the effect of these and other attempts to impose sales, income or other taxes on e-commerce; however, new or revised taxes and, in particular, sales taxes, occupancy taxes, value added taxes (“VAT”), and similar taxes would likely increase the cost of doing business online and decrease the attractiveness of selling products and services over the Internet. New taxes could also create significant increases in internal costs necessary to capture data and collect and remit taxes. Any of these events could have a material adverse effect on our business, financial results and financial condition.

~~Taxing authorities may successfully assert that we should have collected or in the future should collect sales and use, occupancy, VAT or similar taxes, and we could be~~such offset subject to ~~liability with respect to past or future sales, which could adversely affect our operating results.~~ We do not collect and remit sales and use, occupancy, VAT or similar taxes in all jurisdictions in which we have sales, based on our belief that such taxes are not applicable or legally required. Several states and other taxing jurisdictions have presented or threatened us with assessments, alleging that we are required to collect and remit certain taxes there. While we do not believe that we are subject to such taxes and intend to vigorously defend our position in these cases, we cannot be sure of the outcome of our discussions and/or appeals with these states. In the event of an adverse outcome, we could face assessments, plus any additional interest and penalties. We also expect additional jurisdictions may make similar assessments or pass similar new laws in the future, and any of the jurisdictions where we have sales may apply more rigorous enforcement efforts or take more aggressive positions in the future that could result in greater tax liability allegations. Such tax assessments, penalties and interest or future requirements may materially adversely affect our business, financial condition and operating results.

~~We continue to be subject to significant potential tax liabilities in connection with the Spin-Off.~~ Under the Tax Sharing Agreement between us and Expedia entered into in connection with the Spin-Off, we are generally required to indemnify Expedia for any taxes resulting from the Spin-Off (and any related interest, penalties, legal and professional fees, and all costs and damages associated with related stockholder litigation or controversies). We continue to be responsible for potential tax liabilities in connection with consolidated income tax returns filed with Expedia prior to or in connection with the Spin-Off. By virtue of previously filed consolidated tax returns with Expedia, we are currently under IRS audit for the 2009, 2010, and short-period 2011 tax years and, in connection with that audit, have received Notices of Proposed Adjustment from the IRS which would result in an increase in our worldwide income tax expense. For these pre Spin-Off years, the proposed adjustments would result in an increase to our worldwide income tax expense in an estimated range totaling $25 million to $30 million, after consideration of competent authority relief, and would be subject to significant interest. We have requested competent authority assistance under the Mutual Agreement Procedure (“MAP”) for tax years 2009 through 2011. We expect the competent authorities to present a resolution for the 2009 through 2011 tax years in the near future. Upon receipt, we will assess the resolution provided by the competent authorities as well as its impact on our existing income tax reserves for all open subsequent years. The outcome of these matters or any other audits could subject us to significant tax liabilities.cap.

We are subject to ~~fluctuation in foreign currency exchange rates.~~ ~~We conduct a significant portion of our business outside~~ the U.S. but report our results in U.S. dollars. As a result, we face exposure to movements in foreign currency exchange rates including, but not limited to, re-measurement of gains and losses from changes in the value of foreign denominated assets and liabilities; translation gains and losses on foreign subsidiary financial results that are translated into U.S. dollars upon consolidation; and planning risk ~~related to changes in exchange rates between the time we prepare our annual and quarterly forecasts and when actual results occur. For example, in the event~~ that one or more European countries were to replace the Euro with another currency, our sales into such countries, or into Europe generally, would likely be adversely affected until stable exchange rates are established. Accordingly, fluctuations in foreign currency exchange rates, such as the strengthening of the ~~U.S. dollar against~~hedge counterparties may default under the ~~Euro or~~Capped Call. If any of the ~~British pound, could adversely affect~~hedge counterparties become subject to insolvency proceedings, we will become an unsecured creditor with a claim equal to our ~~net revenue growth~~exposure at that time under our transactions with such counterparties. Our exposure will depend on many factors but, generally, the increase in ~~future periods.~~

Inour exposure will be correlated to the ~~event~~increase in the market price and in the volatility of ~~severe volatility in exchange rates, the impact of these exposures can increase and the impact on results of operations can be more pronounced.~~our common stock. In addition, ~~the current environment~~upon a default by a hedge counterparty, we may suffer adverse tax consequences and ~~the increasingly global nature of our business have made hedging these exposures~~ more complex. We hedge certain short-term foreign currency exposures with the purchase of forward exchange contracts. These forward exchange contracts only help mitigate the impact of changes in foreign currency rates that occur during the term of the related contract period and carry risks of counter-party failure. There can be no assurance that our forward exchange contracts will have their intended effects.

~~Liberty Tripadvisor Holdings, Inc.~~dilution than we currently ~~is a controlling stockholder.~~ ~~Liberty Tripadvisor Holdings, Inc., or LTRIP, effectively controls the outcome of all matters submitted to a vote or for the consent of our stockholders (other than~~anticipate with respect to the election by the holders of our common stock of 25% of the members of our Board of Directors and matters as to which Delaware law requires separate class votes). Our Chairman, Gregory Maffei, and Directors Greg O’Hara and Albert Rosenthaler, also serve as officers and directors of LTRIP. LTRIP may have interests that differ from those of our other stockholders and may vote in a way with which our other stockholders may not agree or that may be adverse to other stockholders’ interests. LTRIP is not restricted from investing in other businesses related to our business. LTRIP’s control of us, as well as the provisions of our organizational documents and Delaware law, may discourage or prevent a change of control that might otherwise be beneficial, which may reduce the market price of our common stock.

~~The market price and trading volume of our common stock has experienced, and could continue to experience in the future, substantial volatility.~~ ~~The market price of our common stock is affected by a number of factors, including:~~

In the past, the stock market has experienced price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many companies. These fluctuations often have been unrelated or disproportionate to the operating performance of those companies. These broad market and industry fluctuations and general economic, political and market conditions, such as recessions, interest rate changes or foreign currency exchange fluctuations, may negatively impact the market price of our common stock regardless of our actual operating performance.

We are currently relying on the “controlled company” exemption under Nasdaq Stock Market Listing Rules, pursuant to which “controlled companies” are exempt from certain corporate governance requirements otherwise applicable under Nasdaq listing rules. The Nasdaq Stock Market Listing Rules exempt “controlled companies,” or companies of which more than 50% of the voting power is held by an individual, a group or another company, from certain corporate governance requirements. We currently rely on the controlled company exemption for certain of the above requirements, including the requirement that director nominees be selected or recommended to the Board of Directors by a majority of its independent directors or by a nominating committee that is composed entirely of independent directors. Accordingly, our stockholders will not be afforded the same protections generally as stockholders of other Nasdaq-listed companies with respect to corporate governance for so long as we rely on these exemptions from the corporate governance requirements.

~~We do not pay regular quarterly or annual cash dividends on our stock.~~ Any determination to pay dividends is at the discretion of our Board of Directors and will depend on our results of operations, earnings, capital requirements, financial condition, future prospects, contractual restrictions and other factors deemed relevant by our Board of Directors. Therefore, investors should not rely on regular quarterly or annual dividend income from shares of our common stock and investors should not rely on special dividends with any regularity or at all.

~~Future sales of shares of our common stock in the public market, or the perception that such sales may occur, may depress our stock price.~~ Sales of substantial amounts of our common stock in the public market, particularly sales by our directors, officers, employees and significant stockholders, or the perception that these sales might occur, could depress the market price of our common stock and could impact our ability to raise capital through the sale of additional securities. In addition, certain stockholders have rights, subject to some conditions, to require us to file registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or other stockholders. A decline in the price of shares of our common stock might impede our ability to raise capital through the issuance of additional shares of our common stock or other equity securities.

Anti-takeover provisions in our organizational documents and Delaware law may discourage or prevent a change of control, even if an acquisition would be beneficial to our stockholders, which could affect our stock price adversely and prevent attempts by our stockholders to replace or remove our current management.

These and other provisions in our certificate of incorporation, bylaws and Delaware law could make it more difficult for stockholders or potential acquirers to obtain control of our Board of Directors or initiate actions that are opposed by our then-current Board of Directors, including a merger, tender offer or proxy contest involving our company. Any delay or prevention of a change of control transaction or changes in our Board of Directors could cause the market price of our common stock to decline.

During the quarter ended ~~September~~June 30, ~~2020,~~2021, we did not issue or sell any shares of our common stock, Class B common stock or other equity securities pursuant to unregistered transactions in reliance upon an exemption from the registration requirements of the Securities Act of 1933, as amended. In March 2021, the Company completed the sale of $345 million in 2026 Senior Notes. Refer to “Note 6: Debt” in the notes to the unaudited condensed consolidated financial statements in Item 1 on this Quarterly Report on Form 10-Q for information about our 2026 Senior Notes.

During the ~~nine months~~quarter ended ~~September~~June 30, ~~2020,~~2021, we repurchased, pursuant to a share repurchase program authorized by our Board of Directors, 4,707,450 shares of our outstanding common stock at an average share price of $24.32 per share, exclusive of fees and commissions, or $115 million in the aggregate. We did not repurchase any shares of ~~outstanding~~our common stock ~~during the three months ended September 30, 2020~~ under ~~the~~our existing share repurchase ~~program.~~program. As of ~~September~~June 30, ~~2020,~~2021, we had $75 million remaining available to repurchase shares of our common stock under ~~this~~our previously authorized share repurchase program. T~~his repurchase program has no expiration date but may be suspended or terminated by our Board of Directors at any time~~.

While the Board of Directors has not suspended or terminated the share repurchase program, the terms of our ~~Second Amendment currently prohibit us~~2015 Credit Facility limit the Company from engaging in share repurchases and the terms of our 2025 Indenture related to our 2025 Senior Notes impose certain limitations and restrictions on share repurchases. Refer to “Note 8:6: Debt” in the notes to ~~our~~the unaudited condensed consolidated financial statements in Item 1 in this Quarterly Report on Form ~~10-Q~~10-K for further information about our ~~Second Amendment~~2015 Credit Facility and our 2025 Indenture.

The exhibits listed below are filed as part of this Quarterly Report on Form 10-Q.

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

Class		Outstanding Shares at ~~November 2, 2020~~July 30, 2021
Common Stock, $0.001 par value per share		~~121,725,450~~124,606,262 shares
Class B common stock, $0.001 par value per share		12,799,999 shares

		Page
Part I—Financial Information
Item 1. Unaudited Condensed Financial Statements
Unaudited Condensed Consolidated Statements of Operations for the Three and ~~Nine~~Six Months Ended ~~September~~June 30, ~~2020~~2021 and ~~2019~~2020		3
Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three and ~~Nine~~Six Months Ended ~~September~~June 30, ~~2020~~2021 and ~~2019~~2020		4
Unaudited Condensed Consolidated Balance Sheets at ~~September~~June 30, ~~2020~~2021 and December 31, ~~2019~~2020		5
Unaudited Condensed Consolidated Statements of Changes in Stockholders’ Equity for the Three and ~~Nine~~Six Months Ended ~~September~~June 30, ~~2020~~2021 and ~~2019~~2020		6
Unaudited Condensed Consolidated Statements of Cash Flows for the ~~Nine~~Six Months Ended ~~September~~June 30, ~~2020~~2021 and ~~2019~~2020		8
Notes to Unaudited Condensed Consolidated Financial Statements		9
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations		29
Item 3. Quantitative and Qualitative Disclosures about Market Risk		48
Item 4. Controls and Procedures		49
Part II—Other Information
Item 1. Legal Proceedings		49
Item 1A. Risk Factors		49
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds		6150
Item 3. Defaults Upon Senior Securities		6150
Item 4. Mine Safety Disclosures		6151
Item 5. Other Information		6151
Item 6. Exhibits		6251
Signatures		6352

				Weighted		Weighted
				Average		Average
				Exercise		Remaining		Aggregate
	Options			Price Per		Contractual		Intrinsic
	Outstanding			Share		Life		Value
	(in thousands)					(in years)		(in millions)
Options outstanding at December 31, 2019		6,017		$	50.27
Granted		1,091			25.29
Exercised		(2	)		17.22
Cancelled or expired		(1,220	)		46.10
Options outstanding at September 30, 2020		5,886		$	46.52		5.5	$	—
Exercisable as of September 30, 2020		3,360		$	55.74		3.5	$	—
Vested and expected to vest after September 30, 2020 (1)		5,886		$	46.52		5.5	$	—

	Nine months ended
	September 30,
	2020			2019
Risk free interest rate		1.16	%		2.40	%
Expected term (in years)		5.30			5.19
Expected volatility		43.25	%		42.15	%
Expected dividend yield	— %			— %
Weighted-average grant date fair value	$	10.08		$	21.69

				Weighted
				Average
				Grant-		Aggregate
	RSUs			Date Fair		Intrinsic
	Outstanding			Value Per Share		Value
	(in thousands)					(in millions)
Unvested RSUs outstanding as of December 31, 2019		8,469		$	45.42
Granted		6,244			24.48
Vested and released (1)		(2,542	)		46.45
Cancelled		(3,452	)		37.59
Unvested RSUs outstanding as of September 30, 2020		8,719		$	32.65	$	171


Title of each class	Trading Symbol	Name of each exchange on which registered
Common stock	TRIP	Nasdaq

	Stock
	Options		RSUs/MSUs
Unrecognized compensation expense	$	22	$	193
Weighted average period remaining (in years)		1.9		1.9

	Hotels, Media & Platform		Experiences & Dining		Other (4)			Total
	(in millions)
Balance as of December 31, 2019	$	405	$	333	$	102		$	840
Re-allocation of goodwill (1)		2		—		(2	)		—
Impairment		—		—		(3	)		(3	)
Disposition (2)		—		—		(6	)		(6	)
Foreign currency translation adjustments		—		7		(1	)		6
Other adjustments (3)		—		6		—			6
Balance as of September 30, 2020	$	407	$	346	$	90		$	843

June 30, 2021	Outstanding Principal Amount		Unamortized Debt Issuance Costs			Carrying Value
(in millions)
Long-Term Debt:
2025 Senior Notes	$	500	$	(8	)	$	492
2026 Senior Notes		345		(5	)		340
Total Long-Term Debt	$	845	$	(13	)	$	832

December 31, 2020	Outstanding Principal Amount		Unamortized Debt Issuance Costs			Carrying Value
(in millions)
Long-Term Debt:
2025 Senior Notes	$	500	$	(9	)	$	491
Total Long-Term Debt	$	500	$	(9	)	$	491

	Restructuring and other related reorganization costs
	(in millions)
Accrued liability as of December 31, 2019	$	1
Charges		42
Payments		(41	)
Accrued liability as of September 30, 2020	$	2

Tripadvisor, Inc.
By:		/s/ Ernst Teunissen
		Ernst Teunissen
		Chief Financial Officer

By:		/s/ Geoffrey Gouvalaris
		Geoffrey Gouvalaris
		Chief Accounting Officer

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company