Operating and Financial Review Form 6 K

Operating and Financial Review

The following discussion should be considered together with our unaudited financial information included with this review and the periodic reports we file with the Securities and Exchange Commission, including the section contained in our Annual Report on Form 20-F for the fiscal year ended December 31, 2023, "Item 5. Operating and Financial Review and Prospects." Certain information and disclosures normally included in consolidated financial statements prepared in accordance with U.S. Generally Accepted Accounting Principles ("GAAP") have been omitted from this review.

As used herein, references to "we," "us," the "company," or "trivago," or similar terms shall mean trivago N.V. and, as the context requires, its subsidiaries.

Overview

trivago is a global hotel and accommodation search platform. We are focused on reshaping the way travelers search for and compare different types of accommodations, such as hotels, vacation rentals and apartments, while enabling our advertisers to grow their businesses by providing them with access to a broad audience of travelers via our websites and apps. Our platform allows travelers to make informed decisions by personalizing their search for accommodations and providing them with access to a deep supply of relevant information and prices. As of June 30, 2024, we offered access to more than 5.0 million hotels and other types of accommodation in over 190 countries, including over 3.8 million units of alternative accommodation, such as vacation rentals and apartments.

Our search platform forms the core of our user experience and can be accessed globally via 53 localized websites and apps available in 31 languages. Our users initially search via a text-based search function, which supports searches across a broad range of criteria. This leads through to a listings page that displays search results and allows for further refinement based on more nuanced filters. Additionally, we enhance our users' experience by giving them the option to display their search results in listing or map formats. Users can search our platform on desktop and mobile devices, and benefit from a familiar user interface, resulting in a consistent user experience.

Financial Summary & Operating Metrics (€ millions, unless otherwise stated)

Three months ended June 30,	Six months ended June 30,
2024	2023	Δ Y/Y	2024	2023	Δ Y/Y
Total revenue	118.6	124.4	(5)%	220.0	235.5	(7)%
Referral Revenue	117.2	122.6	(4)%	217.4	231.9	(6)%
Return on Advertising Spend	122.7%	144.6%	(21.9) ppts	121.0%	154.9%	(33.9) ppts
Net income/(loss)	(4.9)	5.8	n.m.	(13.3)	15.7	n.m.
Adjusted EBITDA(1)	(5.4)	12.2	n.m.	(14.5)	30.7	n.m.

(1) "Adjusted EBITDA" is a non-GAAP measure. Please see "Definitions of Non-GAAP Measures" and "Tabular Reconciliations for Non-GAAP Measures" on pages 10 to 11 herein for explanations and reconciliations of non-GAAP measures used throughout this review.

Recent Trends

In the second quarter, total revenue was €118.6 million, which represented a 5% decline compared to the same prior period in 2023. The second quarter of 2024 demonstrated an improved top line year-over-year trajectory towards growth as the quarterly decline was lower than previous quarters, bringing us closer to our aim of returning to year-over-year top line growth.

We observed revenue growth from our branded traffic channel1 in all three segments and are pleased with the results from our brand marketing efforts. Revenue growth from branded traffic sources helped partially offset losses driven by performance marketing channels.

We continued to observe headwinds in our performance marketing channels2. We started to observe significant Google advertisement format changes beginning in the second quarter of 2023, with exposure increasing thereafter which resulted in performance marketing channel traffic volume losses. We continue to stay disciplined with our strategy by investing on an opportunity-driven approach and we do not intend to compensate for volume losses at the expense of long-term oriented brand investments.

Monetization in the Americas segment remained at a healthy level. In our Developed Europe and Rest of World segments, we continued to observe softer levels compared to prior year this quarter as it remained a headwind similar to the first quarter of 2024. During the second quarter, we continued to observe improved booking conversion levels, providing high-quality and better converting traffic to our partners.

Outlook

We remain optimistic that we can return to year-over-year top line growth during the second half of the year by continuing to be disciplined and result-oriented with our marketing investment decisions. We expect headwinds from advertising format changes that have negatively impacted our performance marketing channel traffic volumes to persist for at least the remainder of the year along with stronger branded channel traffic revenue comparatives, as brand marketing efforts increased in July last year. We believe our continued investments into brand marketing campaigns will help us counter these headwinds by increasing our overall branded revenues over time to drive long-term growth and profitability. Overall, we continue to expect full year Adjusted EBITDA3 to be close to break-even levels and to return to double digit revenue growth in the medium-term.

1 Branded channel traffic refers to traffic to our platform through: one of our localized platform websites, one of our downloadable mobile applications, branded search engine optimization marketing channels (or "branded free traffic") for keyword searches that are inclusive of the trivago brand name, and/or paid keyword searches that include the trivago brand name, such as "trivago" or "trivago hotel".

2 Performance marketing channel traffic refers to traffic to our platform that is acquired for our website by purchasing certain keywords (excluding keyword combinations inclusive of the trivago brand name) from general search engines (referred to as "search engine marketing"), such as Google or Yahoo!, and through advertisements on other online marketing channels such as advertising networks, social media sites, and affiliate websites.

3 "Adjusted EBITDA" is a non-GAAP measure. Please see "Definitions of Non-GAAP Measures" and "Tabular Reconciliations for Non-GAAP Measures" on pages 10 to 11 herein for explanations and reconciliations of non-GAAP measures used throughout this review.

Revenue, Advertising Spend, and Return of Advertising Spend

Referral Revenue & Other Revenue

We match our users' searches with large numbers of hotel and other accommodation offers through our auction platform, which we call our marketplace. With our marketplace, we provide advertisers a competitive forum to access user traffic by facilitating a vast quantity of auctions on any particular day. Advertisers submit hotel room and other accommodation rates and participate in our marketplace primarily by making bids for each user click on an advertised rate for a hotel or other accommodation on a cost-per-click, or CPC, basis. We also offer the option for our advertisers to participate in our marketplace on a cost-per-acquisition, or CPA, basis.

We earn substantially all of our revenue when users of our websites and apps click on hotel and accommodation offers or advertisements in our search results and are referred to one of our advertisers. We call this our Referral Revenue.

Management has identified three reportable segments, which correspond to our three operating segments: Americas, Developed Europe and Rest of World (RoW). Our Americas segment is comprised of Argentina, Brazil, Canada, Chile, Colombia, Ecuador, Mexico, Peru, the United States and Uruguay. Our Developed Europe segment is comprised of Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Our RoW segment is comprised of all other countries. In the second quarter of 2024, the most significant countries by revenue in that segment were Japan, Turkey, Australia, New Zealand, and Hong Kong.

We also earn revenue by offering our advertisers business-to-business (B2B) solutions such as data product offerings and subscription fees earned from advertisers for the trivago Business Studio subscriptions. These revenue streams do not represent a significant portion of our total revenue.

Referral Revenue by Segment & Other Revenue (€ millions)

Three months ended June 30,	Six months ended June 30,
2024	2023	Δ €	Δ %	2024	2023	Δ €	Δ % Y/Y
Americas	€	47.9	€	42.9	€	5.0	12%	€	86.0	€	83.4	€	2.6	3%
Developed Europe	47.0	56.7	(9.7)	(17)%	90.8	108.6	(17.8)	(16)%
Rest of World	22.4	22.9	(0.5)	(2)%	40.6	39.9	0.7	2%
Total Referral Revenue	€	117.2	€	122.6	€	(5.4)	(4)%	€	217.4	€	231.9	€	(14.5)	(6)%
Other revenue	1.4	1.9	(0.5)	(26)%	2.6	3.6	(1.0)	(28)%
Total revenue	€	118.6	€	124.4	€	(5.8)	(5)%	€	220.0	€	235.5	€	(15.5)	(7)%

Note: Some figures may not add up due to rounding.

Total revenue decreased by €5.8 million and €15.5 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. The decreases were primarily driven by lower performance marketing channel traffic volumes from increased competition, and softer bidding dynamics on our platform. Despite the overall decrease, we observed improved booking conversion and higher branded traffic channel volumes in response to our increased brand marketing investments.

Americas

Referral Revenue increased by €5.0 million and €2.6 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. Revenue generated from branded channel traffic sources increased as a result of improved booking conversion, increased brand marketing investments, and improved bidding dynamics on our platform in the second quarter of 2024. North American markets continued performing significantly better compared to our Latin American markets. The increase in revenues was partly offset by lower performance marketing channel traffic volumes.

Developed Europe

Referral Revenue decreased by €9.7 million and €17.8 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. The decrease was primarily driven by lower performance marketing channel traffic volumes and softer bidding dynamics on our platform. Despite the overall decrease, we observed improved booking conversion and higher branded traffic channel volumes as a result of increased brand investments.

Rest of World

Referral Revenue increased by €0.7 million during the six months ended June 30, 2024, while it decreased by €0.5 million during the three months ended June 30, 2024, compared to the same periods in 2023. The increase during the six months ended June 30, 2024 was primarily driven by better booking conversion and higher branded channel traffic volumes resulting from our increased brand marketing investments. These were partly offset by softer bidding dynamics and a negative foreign exchange rate impact due to the weakening of the Turkish Lira and Japanese Yen against the Euro, compared to the same period in 2023. Lower performance marketing channel traffic volumes also contributed to the decrease in the three months ended June 30, 2024

Other Revenue

Other revenue decreased by €0.5 million and €1.0 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023, mainly due to the progressive reduction of white label revenues as we discontinued the product over the course of 2023.

Advertiser Concentration

We generate the majority of our Referral Revenue from online travel agencies, or OTAs. For brands affiliated with Expedia Group, including Brand Expedia, Hotels.com, Orbitz, Travelocity, Hotwire, Wotif, Vrbo and ebookers, the share of our Referral Revenue was 41% and 39% during the three and six months ended June 30, 2024, respectively, compared to 40% and 38% in the same periods in 2023. For brands affiliated with Booking Holdings, including Booking.com, Agoda and priceline.com, the share of our Referral Revenue was 37% and 38% during the three and six months ended June 30, 2024, respectively, compared to 40% and 41% in the same periods in 2023.

Advertising Spend

Advertising Spend is included in selling and marketing expense and consists of fees that we pay for our various marketing channels like TV, search engine marketing, display and affiliate marketing, email marketing, online video, app marketing, content marketing, and sponsorship and endorsement.

Advertising Spend by Segment (€ millions)

Three months ended June 30,	Six months ended June 30,
2024	2023	Δ €	Δ %	2024	2023	Δ €	Δ % Y/Y
Americas	€	39.7	€	30.2	€	9.5	31%	€	72.9	€	53.1	€	19.8	37%
Developed Europe	36.5	40.6	(4.1)	(10)%	72.8	73.0	(0.2)	0%
Rest of World	19.3	14.0	5.3	38%	33.9	23.6	10.3	44%
Total Advertising Spend	€	95.5	€	84.7	€	10.8	13%	€	179.6	€	149.7	€	29.9	20%

Note: Some figures may not add up due to rounding.

Total Advertising Spend increased by €10.8 million and €29.9 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. The increases in total Advertising Spend were primarily driven by higher brand marketing investments across all segments as part of our announced marketing strategy shift to fuel growth by increasing direct traffic to our platform, which were partly offset by lower performance marketing spend due to increased competition, particularly in Developed Europe.

Return on Advertising Spend (ROAS)

ROAS Contribution is the difference between Referral Revenue and Advertising Spend. ROAS is the ratio of Referral Revenue to Advertising Spend. We believe that both are indicators of the efficiency of our advertising. ROAS is our primary operating metric.

ROAS Contribution (in € millions) and ROAS (in %) by Segment

Three months ended June 30,
ROAS Contribution	ROAS
2024	2023	Δ €	2024	2023	Δ ppts
Americas	€	8.2	€	12.7	€	(4.5)	120.7%	142.1%	(21.4) ppts
Developed Europe	10.4	16.2	(5.8)	128.5%	139.9%	(11.4) ppts
Rest of World	3.0	8.9	(5.9)	115.7%	163.7%	(48.0) ppts
Global	€	21.7	€	37.8	€	(16.1)	122.7%	144.6%	(21.9) ppts

Note: Some figures may not add up due to rounding.

Six months ended June 30,
ROAS Contribution	ROAS
2024	2023	Δ €	2024	2023	Δ ppts
Americas	€	13.0	€	30.3	€	(17.3)	117.9%	157.1%	(39.2) ppts
Developed Europe	18.0	35.6	(17.6)	124.8%	148.8%	(24.0) ppts
Rest of World	6.7	16.2	(9.5)	119.8%	168.6%	(48.8) ppts
Global	€	37.8	€	82.2	€	(44.4)	121.0%	154.9%	(33.9) ppts

Note: Some figures may not add up due to rounding.

Global ROAS decreased by 21.9 ppts and 33.9 ppts during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023, mainly due to increased brand marketing efforts across all segments with the intention to increase the volume of direct traffic to our platforms.

Expenses

Expenses by Cost Category (€ millions)

Three months ended June 30,	As a % of revenue
2024	2023	Δ €	Δ %	2024	2023
Cost of revenue	€	2.7	€	3.0	€	(0.3)	(10)	%	2	%	2	%
Selling and marketing	102.2	90.2	12.0	13	%	86	%	73	%
Advertising Spend	95.5	84.7	10.8	13	%	81	%	68	%
Other selling and marketing	6.7	5.5	1.2	22	%	6	%	4	%
Technology and content	12.9	12.4	0.5	4	%	11	%	10	%
General and administrative	9.6	10.3	(0.7)	(7)	%	8	%	8	%
Amortization of intangible assets	-	0.0	0.0	0	%	0	%	0	%
Total costs and expenses	€	127.4	€	115.9	€	11.5	10	%	107%	93	%

Six months ended June 30,	As a % of Revenue
2024	2023	Δ €	Δ %	2024	2023
Cost of revenue	€	5.7	€	6.1	€	(0.4)	(7)	%	3	%	3	%
Selling and marketing	191.1	160.2	30.9	19	%	87	%	68	%
Advertising Spend	179.6	149.7	29.9	20	%	82	%	64	%
Other selling and marketing	11.5	10.5	1.0	10	%	5	%	4	%
Technology and content	25.4	24.9	0.5	2	%	12	%	11	%
General and administrative	18.2	20.8	(2.6)	(13)	%	8	%	9	%
Amortization of intangible assets	0.0	0.1	(0.1)	(100)	%	0	%	0	%
Total costs and expenses	€	240.3	€	212.1	€	28.2	13	%	109%	90	%

Note: Some figures may not add up due to rounding.

Cost of Revenue

Cost of revenue decreased by €0.3 million and €0.4 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. These decreases were primarily due to a reduction of certain core cloud-related service provider costs that are closely related to revenue generation.

Selling and Marketing

Selling and marketing expense increased by €12.0 million and €30.9 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. Of the total selling and marketing expenses, Advertising Spend represented 93% and 94% for the three and six months ended June 30, 2024, respectively. See "Advertising Spend" above for further details.

Other selling and marketing expense increased by €1.2 million and €1.0 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. These increases were primarily driven by higher television advertisement production costs, and the recognition of cumulative Canadian digital services taxes in the second quarter of 2024 as legislation was passed with retroactive effect from January 1, 2022. These increases were partly offset by lower expenses incurred to acquire traffic.

Technology and Content

Technology and content expense increased by €0.5 million during both the three and six months ended June 30, 2024, compared to the same periods in 2023. These increases were primarily driven by higher non-core cloud-related service provider costs and higher personnel costs, partly offset by lower rent expense, and lower content-related service provider costs. Higher personnel costs were mainly driven by lower capitalized developer salaries as certain projects finalized at the end of 2023 and increases in annual compensation costs. Additionally, for the three months ended June 30, 2024, the increased annual compensation costs were partly offset by a lower headcount, whereas for the six months ended June 30, 2024, there was an overall reduction in compensation costs due to the lower headcount. The reduction in the headcount-based allocated rent expense was due to the surrender of the remaining leased space in the prior year from our 2021 operating lease amendment.

General and Administrative

General and administrative expense decreased by €0.7 million and €2.6 million during the three and six months ended June 30, 2024, respectively, compared to the same periods in 2023. These decreases were primarily driven by lower personnel and recruiting costs relating to changes in the executive leadership, partly offset by higher project consulting costs. The decrease during the six months ended June 30, 2024 was further driven by lower share-based compensation and lower expected credit losses on trade receivables, partly offset by higher professional fees relating to changes in the executive leadership.

Amortization of Intangible Assets

Amortization of intangible assets was €23 thousand during the six months ended June 30, 2024, compared to €0.1 million in the same period in 2023 as we stopped amortizing an intangible asset acquired through the weekengo GmbH acquisition in the first quarter of 2024 due to its held for sale classification.

Income Taxes, Net Income/(Loss) and Adjusted EBITDA(1) (€ millions)

Three months ended June 30,	Six months ended June 30,
2024	2023	Δ €	2024	2023	Δ €
Operating income/(loss)	€	(8.8)	€	8.6	€	(17.4)	€	(20.4)	€	23.3	€	(43.7)
Other income/(expense)
Interest expense	(0.0)	(0.0)	0.0	(0.0)	(0.0)	0.0
Interest income	1.0	1.3	(0.3)	1.9	2.3	(0.4)
Other, net	(0.0)	(0.1)	0.1	(0.0)	(0.2)	0.2
Total other income, net	€	1.0	€	1.3	€	(0.3)	€	1.8	€	2.1	€	(0.3)
Income/(loss) before income taxes	(7.8)	9.8	(17.6)	(18.5)	25.4	(43.9)
Expense/(benefit) for income taxes	(2.9)	4.1	(7.0)	(5.3)	9.6	(14.9)
Income/(loss) before equity method investment	€	(4.9)	€	5.8	€	(10.7)	€	(13.3)	€	15.8	€	(29.1)
Income/(loss) from equity method investment	(0.0)	0.0	(0.0)	(0.1)	(0.1)	0.0
Net income/(loss)	€	(4.9)	€	5.8	€	(10.7)	€	(13.3)	€	15.7	€	(29.0)
Adjusted EBITDA(1)	€	(5.4)	€	12.2	€	(17.6)	€	(14.5)	€	30.7	€	(45.2)

Note: Some figures may not add up due to rounding.

(1) "Adjusted EBITDA" is a non-GAAP measure. Please see "Definitions of Non-GAAP Measures" and "Tabular Reconciliations for Non-GAAP Measures" on pages 10 to 11 herein for explanations and reconciliations of non-GAAP measures used throughout this review.

Income Taxes

Income tax benefit was €2.9 million during the three months ended June 30, 2024, compared to income tax expense of €4.1 million in the same period in 2023. The total weighted-average tax rate was 38.0% during the three months ended June 30, 2024, which was mainly driven by the German statutory tax rate of approximately 31.2% and the estimated permanent effects for the full year. Our effective tax rate during the three months ended June 30, 2024 was 37.0%, compared to 41.6% in the same period in 2023. The difference in effective tax rate during the three months ended June 30, 2024 compared to the same period in 2023 is primarily related to the difference in pre-tax profit and loss position between the two periods.

Income tax benefit was €5.3 million during the six months ended June 30, 2024, compared to income tax expense of €9.6 million in the same period in 2023. Our effective tax rate for the six months ended June 30, 2024 was 28.5%, compared to 37.9% in the same period in 2023. The difference in effective tax rate during the six months ended June 30, 2024 compared to the same period in 2023 is primarily related to the difference in pre-tax profit and loss position between the two periods.

The difference between the weighted average tax rate and the effective tax rate for the three and six months ended June 30, 2024 is primarily attributable to the share-based compensation expense, which is not deductible for tax purposes.

An uncertain tax position in connection with unrecognized tax benefits relating to the deductibility of expenses amounted to €8.6 million as of June 30, 2024. A liability for these tax benefits is presented under other long-term liabilities in the unaudited condensed consolidated financial statements.

Net Income/(Loss) and Adjusted EBITDA

Net loss was €4.9 million and €13.3 million during the three and six months ended June 30, 2024, respectively, while Adjusted EBITDA loss was €5.4 million and €14.5 million, respectively. The losses were a result of higher selling and marketing expenses as we invested into our brand marketing activities as part of our strategy shift to long-term growth, reduced traffic volumes from increased competition on performance marketing channels, and softer bidding dynamics on our platform which impacted our profitability.

Balance Sheet and Cash Flows

Total cash, cash equivalents and restricted cash were €115.4 million as of June 30, 2024, compared to €102.2 million as of December 31, 2023. The increase of €13.2 million during the six months ended June 30, 2024, was mainly driven by €23.8 million cash provided by investing activities, partly offset by cash used in operating activities of €10.4 million and cash used in financing activities of €0.5 million.

Cash provided by investing activities during the six months ended June 30, 2024, was primarily driven by proceeds from sales and maturities of investments of €25.2 million which also resulted in the elimination of the short-term investment balance as of June 30, 2024. This was partly offset by cash outflows of €1.4 million related to capital expenditures, including internal-use software and website development.

Cash used in operating activities during the six months ended June 30, 2024, was primarily driven by the net loss of €13.3 million, partly offset by an overall positive change in operating assets and liabilities of €2.7 million. The positive change in operating assets and liabilities was primarily driven by an increase in accounts payable of €19.5 million, a decrease in prepaid expenses and other assets of €5.8 million, and a decrease in tax receivables of €3.6 million. These positive changes were partly offset by an increase in accounts receivable of €24.5 million due to higher revenues in the second quarter of 2024 compared to the fourth quarter of 2023, and a decrease in income tax payables of €2.0 million.

Cash used in financing activities during the six months ended June 30, 2024, was primarily driven by the payments totaling €0.5 million related to withholding taxes on net share settlements of equity awards.

Notes & Definitions:

Definitions of Non-GAAP Measures

Adjusted EBITDA:

We report Adjusted EBITDA as a supplemental measure to U.S. Generally Accepted Accounting Principles ("GAAP"). We define Adjusted EBITDA as net income/(loss) adjusted for:

•income/(loss) from equity method investment,

•expense/(benefit) for income taxes,

•total other (income)/expense, net,

•depreciation of property and equipment and amortization of intangible assets,

•impairment of, and gains and losses on disposals of, property and equipment,

•impairment of intangible assets and goodwill,

•share-based compensation, and

•certain other items, including restructuring, ADS cancellation fees, significant legal settlements and court-ordered penalties.

From time to time, we may exclude from Adjusted EBITDA the impact of certain items that affect the period-to-period comparability of our operating performance.

Adjusted EBITDA 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 U.S. GAAP in such company's financial statements. We present this non-GAAP financial measure because it is used by management to evaluate our operating performance, formulate business plans, and make strategic decisions on capital allocation. We also believe that this non-GAAP financial measure provides useful information to investors and others in understanding and evaluating our operating performance and consolidated results of operations in the same manner as our management, and the exclusion of certain expenses in calculating Adjusted EBITDA can provide a useful measure in comparing financial results between periods as these costs may vary independent of core business performance.

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 U.S. GAAP, including net income/loss. Some of these limitations are:

•Adjusted EBITDA does not reflect our cash expenditures or future requirements for capital expenditures or contractual commitments;

•Adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs;

•Adjusted EBITDA does not reflect expenses, such as restructuring and other related reorganization costs;

•Although depreciation, amortization and impairments are non-cash charges, the assets being depreciated, amortized or impaired may have to be replaced in the future, and Adjusted EBITDA does not reflect cash capital expenditure requirements for such replacements or for new capital expenditure requirements; and

•Other companies, including companies in our own industry, may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

We periodically provide an Adjusted EBITDA outlook, however, we are not able to provide a reconciliation of our Adjusted EBITDA outlook to net income/(loss), the comparable GAAP measure, because certain items that are excluded from Adjusted EBITDA cannot be reasonably predicted or are not in our control. In

particular, we are unable to forecast the timing or magnitude of share-based compensation, interest, taxes, impairments, restructuring related costs and/or significant legal settlements and court-ordered penalties without unreasonable efforts, and these items could significantly impact, either individually or in the aggregate, net income/(loss) in the future.

Tabular Reconciliations for Non-GAAP Measures

Adjusted EBITDA (€ millions)

Three months ended June 30,	Six months ended June 30,
2024	2023	2024	2023
Net income/(loss)	€	(4.9)	€	5.8	€	(13.3)	€	15.7
Income/(loss) from equity method investment	(0.0)	0.0	(0.1)	(0.1)
Income/(loss) before equity method investment	€	(4.9)	€	5.8	€	(13.3)	€	15.8
Expense/(benefit) for income taxes	(2.9)	4.1	(5.3)	9.6
Income/(loss) before income taxes	€	(7.8)	€	9.8	€	(18.5)	€	25.4
Add/(less):
Interest expense	0.0	0.0	0.0	0.0
Interest income	(1.0)	(1.3)	(1.9)	(2.3)
Other, net	0.0	0.1	0.0	0.2
Operating income/(loss)	€	(8.8)	€	8.6	€	(20.4)	€	23.3
Depreciation of property and equipment and amortization of intangible assets	1.1	1.1	2.2	2.3
Share-based compensation	2.4	2.5	3.6	5.1
Adjusted EBITDA	€	(5.4)	€	12.2	€	(14.5)	€	30.7

Note: Some figures may not add up due to rounding.

Safe Harbor Statement Under the Private Securities Litigation Reform Act of 1995

This review contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are not guarantees of future performance. These forward-looking statements are based on management's expectations as of the date of this review and assumptions which are inherently subject to uncertainties, risks and changes in circumstances that are difficult to predict. The use of words such as "will," "intend" and "expect," 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 and may include statements relating to future revenue, expenses, margins, profitability, net income / (loss), earnings per share and other measures of results of operations and the prospects for future growth of trivago N.V.'s business. Actual results and the timing and outcome of events may differ materially from those expressed or implied in the forward-looking statements for a variety of reasons, including, among others:

•the extent to which our strategy of increasing brand marketing investments positively impacts the volume of direct traffic to our platform and grows our revenue in future periods without reducing our profits or incurring losses;

•the continuing negative impact of having almost completely ceased television advertising in 2020 and only having resumed such advertising at reduced levels in recent years on our ability to grow our revenue;

•our reliance on search engines, particularly Google, whose search results can be affected by a number of factors, many of which are not in our control;

•the promotion by Google of its own product and services that compete directly with our hotel and accommodation search;

•our continued dependence on a small number of advertisers for our revenue and adverse impacts that could result from their reduced spending or changes in their cost-per-click, or CPC, bidding strategy;

•our ability to generate referrals, customers, bookings or revenue and profit for our advertisers on a basis they deem to be cost-effective;

•factors that contribute to our period-over-period volatility in our financial condition and result of operations;

•the potential negative impact of a worsening of the economic outlook and inflation on consumer discretionary spending;

•any further impairment of intangible assets;

•geopolitical and diplomatic tensions, instabilities and conflicts, including war, civil unrest, terrorist activity, sanctions or other geopolitical events or escalations of hostilities, such as the war in Ukraine and the ongoing conflict affecting the Middle Eastern region;

•increasing competition in our industry;

•our ability to innovate and provide tools and services that are useful to our users and advertisers;

•our business model's dependence on consumer preferences for traditional hotel-based accommodation;

•our dependence on relationships with third parties to provide us with content;

•changes to and our compliance with applicable laws, rules and regulations;

•the impact of any legal and regulatory proceedings to which we are or may become subject; and

•potential disruptions in the operation of our systems, security breaches and data protection,

as well as other risks and uncertainties detailed in our public filings with the SEC, including trivago's Annual Report on Form 20-F for the fiscal year ended December 31, 2023, as such risks and uncertainties may be updated from time to time. Except as required by law, we undertake no obligation to update any forward-looking or other statements in this review, whether as a result of new information, future events or otherwise.