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ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

The purpose of this Management’s Discussion and Analysis (“MD&A”) is to facilitate an understanding of significant factors influencing the operating results, financial condition and cash flows of Gartner, Inc. Additionally, the MD&A conveys our expectations of the potential impact of known trends, events or uncertainties that may impact future results. You should read this discussion in conjunction with our consolidated financial statements and related notes included in this Annual Report on Form 10-K. Historical results and percentage relationships are not necessarily indicative of operating results for future periods. References to “Gartner,” the “Company,” “we,” “our” and “us” in this MD&A are to Gartner, Inc. and its consolidated subsidiaries.

This MD&Aprovides an analysis of our consolidated financial results, segment results and cash flows for 2025 and 2024 under the headings “Results of Operations,” “Segment Results” and “Liquidity and Capital Resources.”For a similar detailed

discussion comparing 2024 and 2023, refer to those headings under Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” in our Annual Report on Form 10-K for the year ended December 31, 2024.

In addition to GAAP results, we provide foreign currency neutral dollar amounts and percentages for our revenues, certain expenses, contract values and other metrics. These foreign currency neutral dollar amounts and percentages eliminate the effects of exchange rate fluctuations and thus provide a more accurate and meaningful trend in the underlying data being measured. We calculate foreign currency neutral dollar amounts by converting the underlying amounts in local currency for different periods into U.S. dollars by applying the same foreign exchange rates to all periods presented.

FORWARD-LOOKING STATEMENTS

In addition to historical information, this Annual Report on Form 10-K contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are any statements other than statements of historical fact, including statements regarding our expectations, beliefs, hopes, intentions, projections or strategies regarding the future. In some cases, forward-looking statements can be identified by the use of words such as “may,” “will,” “expect,” “should,” “could,” “believe,” “plan,” “anticipate,” “estimate,” “predict,” “potential,” “continue” or other words of similar meaning.

We operate in a very competitive and rapidly changing environment that involves numerous known and unknown risks and uncertainties, some of which are beyond our control. Although we believe that the expectations reflected in any of our forward-looking statements are reasonable, actual results could differ materially from those projected or assumed in any of our forward-looking statements. Our future quarterly and annual revenues, operating income, results of operations and cash flows, as well as any forward-looking statement, are subject to change and to inherent risks and uncertainties, such as those disclosed or incorporated by reference in our filings with the Securities and Exchange Commission. Important factors that could cause our actual results, performance and achievements, or industry results to differ materially from estimates or projections contained in our forward-looking statements include, among others, the following: our ability to maintain and expand our products and services; our ability to keep pace with technological developments in artificial intelligence (“AI”) and comply with evolving AI regulations; our ability to achieve continued customer renewals and achieve new contract value, backlog and deferred revenue growth in light of competitive pressures; our ability to grow or sustain revenue from individual customers; our ability to expand or retain our customer base; our ability to carry out our strategic initiatives and manage associated costs; the timing of conferences and meetings, in particular our Gartner Symposium/Xpo series that normally occurs during the fourth quarter; our ability to achieve and effectively manage growth, including our ability to integrate our acquisitions and consummate and integrate future acquisitions; our ability to attract and retain a professional staff of analysts and consultants as well as experienced sales personnel upon whom we are dependent, especially in light of labor competition; our ability to successfully compete with existing competitors and potential new competitors; our ability to enforce and protect our intellectual property rights; the impact of cybersecurity incidents or other disruptions to our information systems; our ability to pay our debt obligations; the impact of global economic and geopolitical conditions, including inflation (and related monetary policy by governments in response to inflation) and recession; uncertain effects, both direct and indirect, of changes and volatility in tariffs and trade policies; risks associated with the creditworthiness, budget cuts, priorities and shutdown of governments and agencies; additional risks associated with international operations, including foreign currency fluctuations; the impact on our business resulting from changes in international conditions, including those resulting from tensions in the Middle East, the war in Ukraine and current and future sanctions imposed by governments or other authorities; the impact of restructuring and other charges on our businesses and operations; our ability to meet sustainability commitments and comply with applicable regulatory requirements, as well as potential reactions by customers to these commitments; the impact of changes in tax policy (including global minimum tax legislation) and heightened scrutiny from various taxing authorities globally; changes to laws and regulations; and other risks and uncertainties. The potential fluctuations in our operating income could cause period-to-period comparisons of operating results not to be meaningful and could provide an unreliable indication of future operating results. A description of the risk factors associated with our business is included under “Risk Factors” in Item 1A of this Annual Report on Form 10-K, which is incorporated herein by reference.

Forward-looking statements are subject to risks, estimates and uncertainties that could cause actual results to differ materially from those discussed in, or implied by, the forward-looking statements. Factors that might cause such a difference include, but are not limited to, those listed above or described under “Risk Factors” in Item 1A of this Annual Report on Form 10-K. In addition, historical, current and forward-looking sustainability-related statements may be based on standards for measuring progress that are still developing, internal controls and processes that continue to evolve, and assumptions that are subject to change in the future. Readers should not place undue reliance on these forward-looking statements, which reflect management’s opinion only as of the date on which they were made. Forward-looking statements in this Annual Report on Form 10-K speak only as of the date hereof, and forward-looking statements in documents attached that are incorporated by reference speak only as of the date of those documents. Except as required by law, we disclaim any obligation to review or update these forward-looking statements to reflect events or circumstances as they occur.

BUSINESS OVERVIEW

Gartner, Inc. (NYSE: IT) delivers actionable, objective business and technology insights that drive smarter decisions and stronger performance on an organization’s mission-critical priorities.

We are a trusted advisor and an objective resource for over 13,000 enterprises in approximately 90 countries and territories — across all major functions, in every industry and enterprise size.

Gartner delivers its products and services globally through three reportable business segments – Insights, Conferences and Consulting, as described below.

•Insights equips executives and their teams from every major function, geography, industry and sector with actionable, objective insights, guidance and tools. Our experts deliver proprietary insights that are informed by thoroughly vetted practitioner-sourced and data-driven research to help our clients address their mission-critical priorities.

•Conferences provides executives and teams across an organization the opportunity to learn, share and network. From our Gartner Symposium/Xpo series, to industry-leading conferences focused on specific business roles and topics, to peer-driven sessions, our offerings enable attendees to experience the best of Gartner insights and guidance.

•Consulting serves senior executives leading technology-driven strategic initiatives leveraging the power of Gartner’s actionable, objective insight. Through custom analysis and on-the-ground support we enable optimized technology investments and stronger performance on our clients’ mission-critical priorities.

Recent Developments

Our Insights contract value with the US federal government was approximately $126.0 million at December 31, 2025. Less than half of our December 31, 2024 Insights contract value was retained in 2025. In addition to the non-renewals, we have received notices of termination-for-convenience from various US government agencies for approximately $3.0 million of contracts that are primarily scheduled to expire in the first quarter of 2026.

As the current geopolitical environment remains unpredictable, we continue to monitor and evaluate the impact, both direct and indirect, of government actions that could adversely impact our business operations and financial performance.

On July 4, 2025, the One Big Beautiful Bill Act (the “OBBBA”) was enacted in the U.S. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, modifications to the international tax framework and the restoration of favorable tax treatment for certain business provisions. The legislation has multiple effective dates, with certain provisions effective in 2025 and others implemented through 2027. OBBBA did not have a material impact on our consolidated financial results in the current period. We are currently assessing and will continue to assess and reflect the impact of OBBBA on our future consolidated financial statements as appropriate.

Our most recent annual impairment test of goodwill was a quantitative analysis conducted during the quarter ended September 30, 2025 that indicated an impairment of the Company's Digital Markets reporting unit. During the three months ended September 30, 2025, ongoing weakness in the market as well as changes in our internal organization structure prompted a revision to the long-term earnings forecast for the Digital Markets business. During the year ended December 31, 2025, a goodwill impairment loss of $150.0 million was recognized in the Digital Markets reporting unit. The fair value of that reporting unit was estimated using a combination of the expected present value of future cash flows and market approach.

On January 29, 2026, we entered into a definitive agreement to sell our Digital Markets business. As of December 31, 2025, the assets and liabilities of Digital Markets were considered held for sale, resulting in $106.4 million of assets held for sale and $20.5 million of liabilities held for sale on the Consolidated Balance Sheet. The majority of the held for sale assets were goodwill, property, equipment and leasehold improvements, net and accounts receivable, with carrying amounts of $49.1 million, $26.3 million and $25.2 million, respectively, while the majority of the held for sale liabilities was accounts payable and accrued liabilities, with a carrying amount of $14.2 million.

On February 5, 2026, we completed the sale of Digital Markets for approximately $110.0 million, prior to customary purchase price adjustments.

BUSINESS MEASUREMENTS

We believe that the following business measurements are important performance indicators for our business segments:

BUSINESS SEGMENT BUSINESS MEASUREMENT

EXECUTIVE SUMMARY OF OPERATIONS AND FINANCIAL POSITION

The fundamentals of our strategy include focusing on creating actionable insights for executive leaders and their teams, delivering innovative and highly differentiated product offerings, building a strong sales capability, providing world class client service with a focus on client engagement and retention, and continuously improving our operational effectiveness.

We had total revenues of $6.5 billion in 2025, an increase of 4% compared to 2024 on a reported basis and 3% excluding the foreign currency impact. Net income decreased to $0.7 billion in 2025 from $1.3 billion in 2024 and diluted earnings per share was $9.65 in 2025 compared to $16.00 in 2024. The decrease in 2025 is primarily due to the goodwill impairment loss in 2025, the gain on event cancellation insurance claims in 2024 and an increase in the provision for income taxes.

Insights revenues increased to $5.1 billion in 2025, an increase of 5% compared to 2024 on a reported basis and 4% excluding the foreign currency impact. The Insights gross contribution margin was 77% in both 2025 and 2024. Contract value was $5.2 billion at December 31, 2025, an increase of 1% compared to December 31, 2024 on a foreign currency neutral basis.

Conferences revenues increased to $644.7 million in 2025, an increase of 11% compared to 2024 on a reported basis and 9% excluding the foreign currency impact. The Conferences gross contribution margin was 50% and 48% in 2025 and 2024, respectively. We held 53 and 51 in-person conferences in 2025 and 2024, respectively.

Consulting revenues decreased to $552.5 million in 2025, a decrease of 1% compared to 2024 on a reported basis and 2% excluding the foreign currency impact. The Consulting gross contribution margin was 34% and 36% in 2025 and 2024, respectively. Backlog was $173.7 million at December 31, 2025.

Cash provided by operating activities was $1.3 billion and $1.5 billion during 2025 and 2024, respectively. As of December 31, 2025, we had $1.7 billion of cash and cash equivalents and approximately $1.0 billion of available borrowing capacity on our revolving credit facility. During 2025, we repurchased 7.0 million shares of the Company’s common stock for an aggregate purchase price of approximately $2.0 billion.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

The preparation of our consolidated financial statements requires the application of appropriate accounting policies and the use of estimates. Our significant accounting policies are described in Note 1 — Business and Significant Accounting Policies in the Notes to Consolidated Financial Statements. Management considers the policies discussed below to be critical to an understanding of our consolidated financial statements because their application requires complex and subjective management judgments and estimates. Specific risks for these critical accounting policies are also described below.

The preparation of our consolidated financial statements requires us to make estimates and assumptions about future events. We develop our estimates using both current and historical experience, as well as other factors, including the general economic environment and actions we may take in the future. We adjust such estimates when facts and circumstances dictate. However, our estimates may involve significant uncertainties and judgments and cannot be determined with precision. In addition, these estimates are based on our best judgment at a point in time and, as such, they may ultimately differ materially from actual results. Ongoing changes in our estimates could be material and would be reflected in the Company’s consolidated financial statements in future periods.

Our critical accounting policies and estimates are described below.

Revenue recognition — Our revenue by significant source is accounted for as follows:

•Insights revenues are mainly derived from subscription contracts for insights products. The related revenues are deferred and recognized ratably over the applicable contract term.

•Conferences revenues are deferred and recognized upon the completion of the related conference or meeting.

•Consulting revenues are principally generated from fixed fee or time and materials engagements. Revenues from fixed fee contracts are recognized as we work to satisfy our performance obligations. Revenues from time and materials engagements are recognized as work is delivered and/or services are provided. Revenues related to contract optimization engagements are contingent in nature and are only recognized upon satisfaction of all conditions related to their payment.

The majority of our Insights contracts are billable upon signing, absent special terms granted on a limited basis from time to time. Insights contracts are generally non-cancelable and non-refundable, except for government contracts that may have cancellation or fiscal funding clauses. When a subscription contract is invoiced, we record the billable amount as a fee receivable, representing our legally enforceable right to payment. The corresponding amount is recognized as deferred revenue until the underlying services are provided and control is transferred to the customer. In certain instances, we may have satisfied our performance obligations and earned revenue prior to invoicing the customer. In such cases, we record an unbilled receivable, which represents our right to payment for services already delivered but not yet billed. Fees derived from assisting organizations in selecting the right business software for their needs are recognized when the leads are provided to vendors.

Note 1 — Business and Significant Accounting Policies and Note 9 — Revenue and Related Matters in the Notes to Consolidated Financial Statements provide additional information regarding our revenues.

Goodwill and other intangible assets — Our goodwill is evaluated in accordance with FASB ASC Topic 350, which requires goodwill to be assessed for impairment at least annually and whenever events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable. In addition, an impairment evaluation of our amortizable intangible assets may also be performed if events or circumstances indicate potential impairment. Among the factors that could trigger an impairment review are current operating results that do not align with our annual plan or historical performance; changes in our strategic plans or the use of our assets; restructuring charges or other changes in our business segments; competitive pressures and changes in the general economy or in the markets in which we operate; and a significant decline in our stock price and our market capitalization relative to our net book value.

When performing our annual assessment of the recoverability of goodwill, we initially perform a qualitative analysis evaluating whether any events or circumstances occurred or exist that provide evidence that it is more likely than not that the fair value of any of our reporting units is less than the related carrying amount. If we do not believe that it is more likely than not that the fair value of any of our reporting units is less than the related carrying amount, then no quantitative impairment test is performed. However, if the results of our qualitative assessment indicate that it is more likely than not that the fair value of a reporting unit is less than its respective carrying amount, then we perform a quantitative impairment test.

Evaluating the recoverability of goodwill requires judgments and assumptions regarding future trends and events. As a result, both the precision and reliability of our estimates are subject to uncertainty. Among the factors that we consider in our qualitative assessment are general economic conditions and the competitive environment; actual and projected reporting unit financial performance; forward-looking business measurements; and external market assessments. To determine the fair values of our reporting units for a quantitative analysis, we typically utilize detailed financial projections, which include significant variables, such as projected rates of revenue growth, profitability and cash flows, as well as assumptions regarding discount rates, our weighted average cost of capital and other data.

Our most recent annual impairment test of goodwill was a quantitative analysis conducted during the quarter ended September 30, 2025 that indicated an impairment of our Digital Markets reporting unit. During the three months ended September 30, 2025, ongoing weakness in the market as well as changes in our internal organization structure prompted a revision to the long-term earnings forecast for the Digital Markets business. As a result, during the year ended December 31, 2025 a goodwill impairment loss of $150.0 million was recognized in the Digital Markets reporting unit, which is included in Other for segment reporting purposes. The fair value of that reporting unit was estimated using a combination of the expected present value of future cash flows and market approach. Subsequent to completing our 2025 annual impairment test, no events or changes in circumstances were noted that required an interim goodwill impairment test. Note 1 — Business and Significant Accounting Policies and Note 3 — Goodwill and Intangible Assets in the Notes to Consolidated Financial Statements provide additional information regarding our goodwill and amortizable intangible assets.

Accounting for income taxes — We use the asset and liability method of accounting for income taxes. We estimate our income taxes in each of the jurisdictions where we operate. This process involves estimating our current tax expense or benefit together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our consolidated balance sheets. When assessing the realizability of deferred tax assets, we consider if it is more likely than not that some or all of the deferred tax assets will not be realized. In making this assessment, we consider the availability of loss carryforwards, projected reversals of deferred tax liabilities, projected future taxable income, and ongoing prudent and feasible tax planning strategies. The Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained based on the technical merits of the position. Recognized tax positions are measured at the largest amount of benefit with greater than a 50% likelihood of being realized. We use estimates in determining the amount of unrecognized tax benefits associated with uncertain tax positions. Significant judgment is required in evaluating tax law and measuring the benefits likely

to be realized. Uncertain tax positions are periodically re-evaluated and adjusted as more information about their ultimate realization becomes available.

Accounting for stock-based compensation — We account for stock-based compensation awards in accordance with FASB ASC Topics 505 and 718 and SEC Staff Accounting Bulletins No. 107 and No. 110. We recognize stock-based compensation expense, which is based on the fair value of the award on the date of grant, over the related service period. Note 10 — Stock-Based Compensation in the Notes to Consolidated Financial Statements provides additional information regarding stock-based compensation. Determining the appropriate fair value model and calculating the fair value of stock-based compensation awards requires the use of certain subjective assumptions, including the expected life of a stock-based compensation award and our common stock price volatility. In addition, determining the appropriate periodic stock-based compensation expense requires management to estimate the likelihood of the achievement of certain performance targets. The assumptions used in calculating the fair values of stock-based compensation awards and the related periodic expense represent management’s best estimates, which involve inherent uncertainties and the application of judgment. As a result, if circumstances change and we deem it necessary in the future to modify the assumptions we made or to use different assumptions, or if the quantity and nature of our stock-based compensation awards changes, then the amount of expense may need to be adjusted and future stock-based compensation expense could be materially different from what has been recorded in the current period.

A change in any of the terms or conditions of stock-based compensation awards is accounted for as a modification of the award. Incremental compensation cost is measured as the excess, if any, of the fair value of the modified award over the fair value of the original award immediately before its terms are modified, measured based on the fair value of the awards at the modification date. For vested awards, we recognize incremental compensation cost in the period the modification occurs. For unvested awards, we recognize any incremental compensation expense at the modification date or ratably over the requisite remaining service period, as appropriate. If the fair value of the modified award is lower than the fair value of the original award immediately before modification, the minimum compensation cost we recognize is the cost of the original award.

RESULTS OF OPERATIONS

Consolidated Results

The table below presents an analysis of selected line items and year-over-year changes in our Consolidated Statements of Operations for the years indicated (in thousands).

Costs and expenses:

Acquisition and integration charges — 973 (973) nm

Gain on event cancellation insurance claims — 300,000 (300,000) nm

nm = not meaningful

Total revenues for 2025 were $6.5 billion, an increase of $229.8 million compared to 2024, or 4% on a reported basis and 3% excluding the foreign currency impact. The tables below present (i) revenues by geographic region (based on where the sale is fulfilled) and (ii) revenues by segment for the years indicated (in thousands).

Refer to the section of this MD&A below entitled “Segment Results” for a discussion of revenues and results by segment.

Cost of services and product development was $2.1 billion in 2025, an increase of $30.6 million compared to 2024, or 2% on a reported basis and 1% excluding the foreign currency impact. The increase in Cost of services and product development was primarily due to a $44.1 million increase in personnel expenses associated with merit increases as well as a $13.4 million

increase in conference expenses due to an increase in the number of conferences, partially offset by a decrease in product and content delivery expenses. Cost of services and product development as a percent of revenues was 32% for both 2025 and 2024.

Selling, general and administrative (“SG&A”) expense was $3.1 billion in 2025, an increase of $182.8 million compared to 2024, or 6% on both a reported basis and excluding the foreign currency impact. The increase in SG&A during the year ended December 31, 2025, as compared to the prior fiscal year, was primarily a result of a $150.1 million increase in personnel expenses due to merit increases and higher average headcount, as well as a $56.6 million increase in workforce reduction expenses.

The number of quota-bearing sales associates in Global Technology Sales decreased by 3% to 3,704 and in Global Business Sales decreased by 1% to 1,280, compared to December 31, 2024. On a combined basis, the total number of quota-bearing sales associates decreased by 2% when compared to December 31, 2024. SG&A expense as a percent of revenues was 47% and 46% during 2025 and 2024, respectively.

Depreciation increased by 5% during 2025 compared to 2024. The increase for the year ended December 31, 2025 was primarily due to increased software additions during 2025 and 2024.

Amortization of intangibles decreased by 9% during 2025 compared to 2024 primarily due to certain intangible assets that became fully amortized in 2025.

Acquisition and integration charges decreased by $1.0 million during the year ended December 31, 2025, compared to the same period in 2024.

Goodwill impairment of $150.0 million during the year ended December 31, 2025, reflected a goodwill impairment loss recognized in the Digital Markets reporting unit.

Operating income was $1.03 billion and $1.16 billion during 2025 and 2024, respectively. The 11% decrease in operating income was primarily due to the goodwill impairment loss of $150.0 million, as well as an increase in selling, general and administrative expenses, partially offset by increased revenues.

Interest expense, net decreased by $8.9 million during 2025 compared to 2024. The decrease in interest expense, net was due to reduced interest expense on our interest rate swaps as well as increased interest income, primarily as a result of higher average cash balances than the prior year.

Gain on event cancellation insurance claims of $300.0 million during the year ended December 31, 2024 reflected proceeds from a settlement agreement to resolve litigation concerning the Company's event cancellation insurance for 2020 and 2021. The settlement resolved all remaining 2020 and 2021 event cancellation insurance claims.

Other income, net for the years presented herein included the net impact of foreign currency gains and losses from our hedging activities, as well as the recognition of certain tax incentives. During 2025 and 2024, Other income, net included a gain of $0.5 million and $3.9 million, respectively, on de-designated interest rate swaps.

Provision for income taxes was $238.9 million and $133.7 million during 2025 and 2024, respectively, with an effective income tax rate of 24.7% and 9.6% for 2025 and 2024, respectively. The 2024 provision for income taxes and effective income tax rate were lower than 2025 was due to net tax benefits of approximately $161.9 million recognized in 2024 as a result of an intercompany transfer of certain intellectual property in December 2024. Note 12 — Income Taxes in the Notes to Consolidated Financial Statements provides additional information regarding the Company’s income taxes.

Net income was $0.7 billion and $1.3 billion during 2025 and 2024, respectively. Additionally, our diluted net income per share decreased by $6.35 in 2025 compared to 2024. The decrease in net income during 2025 was primarily due to the goodwill impairment loss, the gain on event cancellation insurance claims in 2024, an increase in operating expenses and a higher provision for income taxes, partially offset by an increase in revenues.

SEGMENT RESULTS

We evaluate reportable segment performance and allocate resources based on gross contribution margin. Gross contribution is defined as operating income or loss excluding certain Cost of services and product development expenses, SG&A expenses,

Depreciation, Amortization of intangibles, and Acquisition and integration charges. Gross contribution margin is defined as gross contribution as a percent of revenues.

Reportable Segments

The sections below present the results of the Company’s three reportable segments – Insights, Conferences and Consulting, as described below.

Insights

Financial Measurements:

Gross contribution margin 77 % 77 % — point —

Business Measurements:

Global Technology Sales (2):

Client retention 85 % 84 % 1 point —

Wallet retention 96 % 102 % (6) points —

Global Business Sales (2):

Client retention 86 % 87 % (1) point —

Wallet retention 99 % 106 % (7) points —

(1)Dollars in thousands.

(2)Global Technology Sales includes sales to users and providers of technology. Global Business Sales includes sales to all other functional leaders.

(3)Contract values are on a foreign exchange neutral basis. Contract values as of December 31, 2024 have been calculated using the same foreign currency rates as 2025.

Insights revenues increased by $243.5 million during 2025 compared to 2024, or 5% on a reported basis and 4% excluding the foreign currency impact. The increase in revenues during 2025 was primarily due to Insights contract value growth in 2024. The gross contribution margin was 77% in both 2025 and 2024, as the increase in revenue was offset by an increase in personnel expenses.

Contract value increased to $5.2 billion at December 31, 2025, or 1% compared to December 31, 2024 on a foreign currency neutral basis. Approximately half of industry sectors grew mid single-digit rates or faster. Growth was led by the energy, banking and technology sectors, partially offset by a double digit decrease in public sector, primarily related to the US federal government. Global Technology Sales (“GTS”) contract value decreased slightly at December 31, 2025 when compared to December 31, 2024. The decrease in GTS contract value was primarily due to decreased spending from existing clients. GTS contract value increased by mid single-digit rates for all commercial enterprise sizes and mid-single digits or faster for the majority of industry sectors. Global Business Sales (“GBS”) contract value increased by 3% year-over-year primarily driven by business from new clients. The majority of our GBS practices achieved mid single-digit rates or faster growth rates, with all commercial enterprise sizes and the majority of sectors also growing mid single-digit rates or faster year-over-year. Public sector contract value decreased by double digits and high single digits for GTS and GBS, respectively.

GTS client retention was 85% and 84% as of December 31, 2025 and 2024, respectively, while wallet retention was 96% and 102%, as of December 31, 2025 and 2024, respectively. GBS client retention was 86% and 87% as of December 31, 2025 and 2024, respectively, while wallet retention was 99% and 106% as of December 31, 2025 and 2024, respectively. The decrease in GTS and GBS wallet retention was largely due to lower levels of spending by existing clients compared to the same period in 2024.

Conferences

Financial Measurements:

Gross contribution margin 50 % 48 % 2 points —

Business Measurements:

Number of destination conferences (2) 53 51 2 4 %

(1)Dollars in thousands.

(2)Single day, local meetings are excluded.

Conferences revenues increased by $61.5 million during 2025 compared to 2024, or 11% on a reported basis and 9% excluding the foreign currency impact. We held 53 and 51 destination conferences during the years ended December 31, 2025 and 2024, respectively. The increase in revenues for the year ended December 31, 2025 was primarily due to an increase of 15% in exhibitor revenue compared to the same period in 2024. The segment gross contribution margin was 50% and 48% in 2025 and 2024, respectively. The higher gross contribution margin during 2025 was primarily the result of the increase in revenue, partially offset by an increase in conference-related expenses.

Consulting

Financial Measurements:

Gross contribution margin 34 % 36 % (2) points —

Business Measurements:

Consultant utilization 61 % 65 % (4) points —

(1)Dollars in thousands.

(2)Backlog is on a foreign currency neutral basis. Backlog as of December 31, 2024 has been calculated using the same foreign currency rates as 2025.

Consulting revenues decreased by $6.0 million during 2025 compared to 2024, or 1% on a reported basis and 2% excluding the foreign currency impact. The decrease in revenues on a reported basis was due to a 5% decrease in labor-based consulting, partially offset by a 11% increase in contract optimization. Contract optimization revenue may vary significantly and, as such, 2025 revenues may not be indicative of future results. The segment gross contribution margin was 34% and 36% in 2025 and 2024, respectively. The decrease in gross contribution margin during 2025 was primarily due to the decrease in revenue, as well as an increase in personnel expenses.

Backlog decreased by $13.5 million, or 7%, from December 31, 2024 to December 31, 2025.

LIQUIDITY AND CAPITAL RESOURCES

We finance our operations through cash generated from our operating activities and borrowings. Note 6 — Debt in the Notes to Consolidated Financial Statements provides additional information regarding the Company’s outstanding debt obligations. At December 31, 2025, we had $1.7 billion of cash and cash equivalents and approximately $1.0 billion of available borrowing capacity on the revolving credit facility under our 2024 Credit Agreement. We believe that the Company has adequate liquidity and access to capital markets to meet its currently anticipated needs for both the next twelve months and the foreseeable future.

We have historically generated significant cash flows from our operating activities, benefiting from the favorable working capital dynamics of our subscription-based business model in our Insights segment, which is our largest business segment and historically has constituted a significant portion of our total revenues. The majority of our Insights customer contracts are paid in advance and, combined with a strong customer retention rate and high incremental margins, our subscription-based business model has resulted in continuously strong operating cash flow. Cash flow generation has also benefited from our ongoing efforts to improve the operating efficiencies of our businesses as well as a focus on the optimal management of our working capital as we increase sales.

During the fourth quarter of 2024, we entered into an amended lease agreement to significantly reduce the square footage and reduce future lease payments at one of our leased locations. We made installment payments of $24.0 million during each of the fourth quarter of 2024 and the second quarter of 2025 in consideration for the lease amendment.

Our cash and cash equivalents are held in numerous locations throughout the world with 57% held overseas at December 31, 2025. We continue to assert our intention to reinvest substantially all remaining accumulated undistributed foreign earnings, except in instances where repatriation would result in minimal additional tax.

The table below summarizes the changes in the Company’s cash balances for the years indicated (in thousands).

Year Ended December 31, Increase(Decrease)

Operating

Cash provided by operating activities was $1.3 billion and $1.5 billion in 2025 and 2024, respectively. The year-over-year decrease was primarily due to the $300.0 million of insurance proceeds received during 2024, partially offset by the improved timing of collections and lower income tax payments.

Investing

Cash used in investing activities was $115.1 million and $103.7 million in 2025 and 2024, respectively. The year-over-year increase was primarily the result of higher leasehold improvements expenditures.

Financing

Cash used in financing activities was $1.4 billion and $0.7 billion in 2025 and 2024, respectively. During the 2025 period, we used $2.0 billion of cash for share repurchases. In November 2025, we issued $350.0 million of senior notes due in 2031 and $450.0 million of senior notes due in 2035. A portion of the proceeds were used to repay the $274.4 million then outstanding under the 2024 Credit Agreement. During the 2024 period, we used $0.7 billion of cash for share repurchases. In March 2024, we borrowed $274.4 million under the 2024 Credit Agreement. The initial borrowing was used to repay the outstanding amounts under the 2020 Credit Agreement.

OBLIGATIONS AND COMMITMENTS

Debt

As of December 31, 2025, the Company had $3.0 billion of principal amount of debt outstanding. Note 6 — Debt in the Notes to Consolidated Financial Statements provides additional information regarding the Company’s outstanding debt obligations. From time to time, the Company may seek to retire or repurchase its outstanding debt through various methods including open market repurchases, negotiated block transactions, or otherwise, all or some of which may be effected through Rule 10b5-1 plans. Such transactions, if any, depend on prevailing market conditions, our liquidity and capital requirements, contractual restrictions, and other factors, and may involve material amounts.

Off-Balance Sheet Arrangements

Through December 31, 2025, the Company has not entered into any material off-balance sheet arrangements or transactions with unconsolidated entities or other persons.

Contractual Cash Commitments

The table below summarizes the Company’s future contractual cash commitments as of December 31, 2025 (in thousands).

(1)Principal repayments of the Company’s debt obligations were classified in the above table based on the contractual repayment dates. Interest payments were based on the effective interest rates as of December 31, 2025. Commitment fees were based on unused balances and commitment rates as of December 31, 2025. Note 6 — Debt in the Notes to Consolidated Financial Statements provides information regarding the Company’s debt obligations.

(2)The Company leases various facilities, automobiles, computer equipment and other assets under non-cancelable operating lease agreements expiring between 2026 and 2038. The total commitment excludes approximately $107.7 million of estimated future cash receipts from the Company’s subleasing arrangements. Note 1 — Business and Significant Accounting Policies and Note 7 — Leases in the Notes to Consolidated Financial Statements provide additional information regarding the Company’s leases.

(3)The Company has supplemental deferred compensation arrangements with certain of its employees. Amounts payable with known payment dates have been classified in the above table based on those scheduled payment dates. Amounts payable whose payment dates are unknown have been included in the Due In More Than 5 Years category because the Company cannot determine when the amounts will be paid. Note 15 — Employee Benefits in the Notes to Consolidated Financial Statements provides additional information regarding the Company’s supplemental deferred compensation arrangements.

(4)Other includes: (i) contractual commitments (a) for software, telecom and other services and (b) to secure sites for our Conferences business; and (ii) projected cash contributions to the Company’s defined benefit pension plans. Note 15 — Employee Benefits in the Notes to Consolidated Financial Statements provides additional information regarding the Company’s defined benefit pension plans.

In addition to the contractual cash commitments included in the above table, the Company has other payables and liabilities that may be legally enforceable but are not considered contractual commitments. Information regarding the Company’s payables and liabilities is included in Note 5 — Accounts Payable and Accrued and Other Liabilities and Note 12 — Income Taxesin the Notes to Consolidated Financial Statements.

RECENTLY ISSUED ACCOUNTING STANDARDS

The FASB has issued accounting standards that had not yet become effective as of December 31, 2025 and may impact the Company’s consolidated financial statements or its disclosures in future periods. Note 1 — Business and Significant Accounting Policies in the Notes to Consolidated Financial Statements provides information regarding those accounting standards.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

INTEREST RATE RISK

As of December 31, 2025, the Company had $3.0 billion in total debt principal outstanding. None of the Company’s total debt outstanding as of December 31, 2025 was based on a floating base rate of interest. Note 6 — Debt in the Notes to Consolidated Financial Statements provides additional information regarding the Company’s outstanding debt obligations.

FOREIGN CURRENCY RISK

A significant portion of our revenues are typically derived from sales outside of the United States. Among the major foreign currencies in which we conduct business are the Euro, the British Pound, the Japanese Yen, the Australian dollar and the Canadian dollar. The reporting currency of our Consolidated Financial Statements is the U.S. dollar. As the values of the foreign currencies in which we operate fluctuate over time relative to the U.S. dollar, the Company is exposed to both foreign currency translation and transaction risk.

Translation risk arises as our foreign currency assets and liabilities are translated into U.S. dollars because the functional currencies of our foreign operations are generally denominated in the local currency. Adjustments resulting from the translation of these assets and liabilities are deferred and recorded as a component of stockholders’ equity. A measure of the potential impact of foreign currency translation can be determined through a sensitivity analysis of our cash and cash equivalents. At December 31, 2025, we had $1.7 billion of cash and cash equivalents, with a substantial portion denominated in foreign currencies. If the exchange rates of the foreign currencies we hold all changed in comparison to the U.S. dollar by 10%, the amount of cash and cash equivalents we would have reported on December 31, 2025 could have increased or decreased by approximately $116.3 million. The translation of our foreign currency revenues and expenses historically has not had a material impact on our consolidated earnings because movements in and among the major currencies in which we operate tend to impact our revenues and expenses fairly equally. However, our earnings could be impacted during periods of significant exchange rate volatility, or when some or all of the major currencies in which we operate move in the same direction against the U.S. dollar.

Transaction risk arises when we enter into a transaction that is denominated in a currency that may differ from the local functional currency. As these transactions are translated into the local functional currency, a gain or loss may result, which is recorded in current period earnings. We typically enter into foreign currency forward exchange contracts to mitigate the effects of some of this foreign currency transaction risk. Our outstanding foreign currency forward exchange contracts as of December 31, 2025 had an immaterial net unrealized gain.

CREDIT RISK

Financial instruments that potentially subject the Company to concentration of credit risk consist primarily of short-term, highly liquid investments classified as cash equivalents, fees receivable, interest rate swap contracts and foreign currency forward exchange contracts. The majority of the Company’s cash and cash equivalents, interest rate swap contracts and foreign currency forward exchange contracts are with large investment grade commercial banks. Fees receivable balances deemed to be collectible from customers have limited concentration of credit risk due to our diverse customer base and geographic dispersion.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

Our financial statements for 2025, 2024 and 2023, together with the reports of KPMG LLP, our independent registered public accounting firm, are included herein in this Annual Report on Form 10-K.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING ANDFINANCIAL DISCLOSURE.

None.

ITEM 9A. CONTROLS AND PROCEDURES.

DISCLOSURE CONTROLS AND PROCEDURES

We have established disclosure controls and procedures that are designed to ensure that the information we are required to disclose in our reports filed or submitted under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC, and such information is accumulated and communicated to our executive management team, including our chief executive officer and our chief financial officer, to allow timely decisions regarding required disclosure.

Management conducted an evaluation, as of December 31, 2025, of the effectiveness of the design and operation of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, under the supervision and with the participation of our chief executive officer and chief financial officer. Based upon that evaluation, our chief executive officer and chief financial officer have concluded that, as of December 31, 2025, the Company’s disclosure controls and procedures were effective.

MANAGEMENT’S ANNUAL REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Gartner management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Gartner’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. In addition, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions and that the degree of compliance with the policies or procedures may deteriorate. Management assessed the effectiveness of our internal control over financial reporting as of December 31, 2025. In making this assessment, management used the criteria set forth in the Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Management’s assessment was reviewed with the Audit Committee of the Board of Directors.

Based on its assessment of internal control over financial reporting, management has concluded that, as of December 31, 2025, Gartner’s internal control over financial reporting was effective. The effectiveness of management’s internal control over financial reporting as of December 31, 2025 has been audited by KPMG LLP, an independent registered public accounting firm, as stated in their report, which is included in this Annual Report on Form 10-K in Part IV, Item 15.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

There have been no changes in the Company’s internal control over financial reporting during the quarter ended December 31, 2025 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

ITEM 9B. OTHER INFORMATION.

Insider Trading Arrangements

No director or Section 16 officer adopted or terminated a trading arrangement intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or a non-Rule 10b5–1 trading arrangement during the three months ended December 31, 2025.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

None.

PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.

The information required to be furnished pursuant to this item is incorporated by reference from the information set forth under the captions “The Board of Directors,” “Proposal One: Election of Directors,” “Executive Officers,” “Corporate Governance,” “Delinquent Section 16(a) Reports” (if necessary) and “Proxy and Voting Information — Available Information” in the Company’s 2026 Proxy Statement. See also Item 1. Business — Available Information.

ITEM 11. EXECUTIVE COMPENSATION.

The information required to be furnished pursuant to this item is incorporated by reference from the information set forth under the captions “Compensation Discussion & Analysis,” “Compensation Tables and Narrative Disclosures,” “Compensation Committee Report,” “The Board of Directors - Compensation of Directors,” “The Board of Directors - Director Compensation Table,” “Corporate Governance - Risk Oversight - Risk Assessment of Compensation Policies and Practices,” and “Corporate Governance - Compensation Committee” in the Company’s 2026 Proxy Statement.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.

The information required to be furnished pursuant to this item is incorporated by reference from the information set forth under the captions “Compensation Tables and Narrative Disclosures — Equity Compensation Plan Information” and “Security Ownership of Certain Beneficial Owners and Management” in the Company’s 2026 Proxy Statement.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE.

The information required to be furnished pursuant to this item is incorporated by reference from the information set forth under the captions “Transactions With Related Persons” and “Corporate Governance — Director Independence” in the Company’s 2026 Proxy Statement.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

The information required to be furnished pursuant to this item is incorporated by reference from the information set forth under the caption “Proposal Three: Ratification of Appointment of Independent Registered Public Accounting Firm” in the Company’s 2026 Proxy Statement.

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

(a) 1. and 2. Financial Statements and Schedules

The reports of our independent registered public accounting firm and financial statements listed in the Index to Consolidated Financial Statements herein are filed as part of this report.

All financial statement schedules not listed in the Index have been omitted because the information required is not applicable or is shown in the consolidated financial statements or notes thereto.

3. Exhibits

EXHIBIT NUMBER DESCRIPTION OF DOCUMENT

10.16*+ Form of 2026 Stock Appreciation Right Agreement for executive officers.

10.17*+ Form of 2026 Performance Stock Unit Agreement for executive officers.

21.1* Subsidiaries of Registrant.

23.1* Consent of Independent Registered Public Accounting Firm.

24.1* Power of Attorney (see Signature Page).

32* Certification under Section 906 of the Sarbanes-Oxley Act of 2002.

101.SCH* XBRL Taxonomy Extension Schema Document.

101.CAL* XBRL Taxonomy Extension Calculation Linkbase Document.

101.LAB* XBRL Taxonomy Extension Label Linkbase Document.

101.PRE* XBRL Taxonomy Extension Presentation Linkbase Document.

101.DEF* XBRL Taxonomy Extension Definition Linkbase Document.

* Filed with this document.

+ Management compensation plan or arrangement.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

GARTNER, INC. AND SUBSIDIARIES

CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm 41

Consolidated Balance Sheets as of December 31, 2025 and 2024 42

Notes to Consolidated Financial Statements 47

All financial statement schedules have been omitted because the information required is not applicable or is shown in the Consolidated Financial Statements or notes thereto.

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Gartner, Inc.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Gartner, Inc. and subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive income, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2025, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2025, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 12, 2026 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Unrecognized tax benefits

As discussed in Note 1 to the consolidated financial statements, the Company recognizes the tax benefit from an uncertain tax position when it believes such position is more likely than not of being sustained if challenged. As of December 31, 2025, the Company has recorded gross unrecognized tax benefits of $301.6 million.

Recognized tax positions are measured at the largest amount of benefit with greater than a 50 percent likelihood of being realized. The Company uses estimates and assumptions in determining the amount of unrecognized tax benefits.

We identified the assessment of unrecognized tax benefits related to transfer pricing as a critical audit matter. Complex auditor judgement was required in evaluating the Company’s interpretation of tax law and its estimate of the ultimate resolution of its tax positions.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls over the Company’s unrecognized tax benefits process, including transfer pricing positions. We involved tax and transfer pricing professionals with specialized skills and knowledge, who assisted in assessing unrecognized tax benefits by:

•evaluating the Company’s interpretation of tax laws and income tax consequences of intercompany transactions

•assessing transfer pricing practices for compliance with relevant tax laws and regulations

•analyzing the Company’s tax positions and determination of unrecognized tax benefits, including the associated effect in other jurisdictions.

In addition, we evaluated the Company’s ability to estimate its unrecognized tax benefits by comparing historical unrecognized tax benefits to actual results upon conclusion of examinations by applicable taxing authorities.

/s/ KPMG LLP

We have served as the Company’s auditor since 1996.

New York, New York

February 12, 2026

Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Gartner, Inc.:

Opinion on Internal Control Over Financial Reporting

We have audited Gartner, Inc. and subsidiaries' (the Company) internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 31, 2025 and 2024, the related consolidated statements of operations, comprehensive income, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2025, and the related notes (collectively, the consolidated financial statements), and our report dated February 12, 2026 expressed an unqualified opinion on those consolidated financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ KPMG LLP

New York, New York

February 12, 2026

GARTNER, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(IN THOUSANDS, EXCEPT SHARE DATA)

December 31,

ASSETS

Current assets:

Property, equipment and leasehold improvements, net 214,183 242,968

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities:

Current portion of long-term debt 5,000 —

Liabilities held-for-sale 20,503 —

Long-term debt, net of deferred financing fees and discounts 2,976,674 2,459,915

Stockholders’ Equity:

Preferred stock:

$0.01 par value, authorized 5,000,000 shares; none issued or outstanding — —

Common stock:

Accumulated other comprehensive loss, net (41,015) (88,333)

See Notes to Consolidated Financial Statements.

GARTNER, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(IN THOUSANDS, EXCEPT PER SHARE DATA)

Year Ended December 31,

Revenues:

Costs and expenses:

Acquisition and integration charges — 973 9,587

Goodwill impairment 150,000 — —

Gain from sale of divested operation — — (135,410)

Gain on event cancellation insurance claims — 300,000 3,077

Net income per share:

Weighted average shares outstanding:

See Notes to Consolidated Financial Statements.

GARTNER, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(IN THOUSANDS)

Year Ended December 31,

Other comprehensive income (loss), net of tax:

Interest rate swaps - net change in deferred gain or loss 9,800 14,362 15,086

Pension plans - net change in deferred actuarial gain or loss (730) 517 (1,484)

See Notes to Consolidated Financial Statements.

GARTNER, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(IN THOUSANDS)

Common share repurchases (including excise tax) — — — — (609,962) (609,962)

Common share repurchases (including excise tax) — — — — (746,246) (746,246)

Common share repurchases (including excise tax) — — — — (2,004,251) (2,004,251)

See Notes to Consolidated Financial Statements.

GARTNER, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(IN THOUSANDS)

Year Ended December 31,

Operating activities:

Goodwill impairment 150,000 — —

Gain from sale of divested operation — — (135,410)

Changes in assets and liabilities, net of acquisitions and divestitures:

Investing activities:

Acquisitions - cash paid (net of cash acquired) — (2,000) (3,800)

Proceeds from sale of divested operation — — 161,081

Financing activities:

Proceeds from issuance of long-term debt, net of discounts 799,859 — —

Payments for deferred financing fees (6,480) (2,972) —

Proceeds from revolving credit facility — 274,400 —

Payments on revolving credit facility (274,400) — —

Supplemental disclosures of cash flow information:

Cash paid during the year for:

See Notes to Consolidated Financial Statements.

GARTNER, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1 — Business and Significant Accounting Policies

Business. Gartner, Inc. (NYSE: IT) delivers actionable, objective business and technology insights that drive smarter decisions and stronger performance on an organization’s mission-critical priorities.

We are a trusted advisor and an objective resource for over 13,000 enterprises in approximately 90 countries and territories — across all major functions, in every industry and enterprise size.

Segments. Gartner delivers its products and services globally through three reportable segments – Business and Technology Insights (or “Insights”), Conferences, and Consulting. Note 9 — Revenue and Related Matters and Note 16 — Segment Information describe the products and services offered by each of our segments and provide additional financial information for those segments. In the second quarter of 2025, we renamed our segment previously referred to as Research to Business and Technology Insights (or “Insights”) to reflect the nature of the value we provide to clients. In the third quarter of 2025, we changed the structure of our internal organization and concluded that Gartner Digital Markets (“Digital Markets”) was an operating segment but does not meet the criteria of a reportable segment. Accordingly, Digital Markets results are now included in “Other” where segment information is provided. Digital Markets was previously included in our Insights segment. Prior periods have been recast to conform to current period presentation.

Basis of presentation. The accompanying Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”), as defined in the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), for financial information and with the applicable instructions of U.S. Securities and Exchange Commission (“SEC”) Regulation S-X.

The fiscal year of Gartner is the twelve-month period from January 1 through December 31. All references to 2025, 2024 and 2023 herein refer to the fiscal year unless otherwise indicated. When used in these notes, the terms “Gartner,” the “Company,” “we,” “us” or “our” refer to Gartner, Inc. and its consolidated subsidiaries.

Principles of consolidation. The accompanying Consolidated Financial Statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated.

Use of estimates. The preparation of the accompanying Consolidated Financial Statements requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. Such estimates include the valuation of fees receivable, goodwill, intangible assets, deferred tax assets and other long-lived assets, as well as tax accruals and other liabilities. In addition, estimates are used in revenue recognition, income tax expense or benefit, performance-based compensation charges, depreciation and amortization. Management believes its use of estimates in the accompanying Consolidated Financial Statements to be reasonable.

Management continually evaluates and revises its estimates using historical experience and other factors, including the general economic environment and actions it may take in the future. Management adjusts these estimates when facts and circumstances dictate. However, these estimates may involve significant uncertainties and judgments and cannot be determined with precision. In addition, these estimates are based on management’s best judgment at a point in time. As a result, differences between our estimates and actual results could be material and would be reflected in the Company’s Consolidated Financial Statements in future periods.

Business acquisitions. The Company accounts for business acquisitions in accordance with the acquisition method of accounting as prescribed by FASB ASC Topic 805. The acquisition method of accounting requires the Company to record the assets acquired and liabilities assumed based on their estimated fair values as of the acquisition date, with certain exceptions. Any excess of the consideration transferred over the estimated fair value of the net assets acquired, including identifiable intangible assets, is recorded as goodwill. Under the acquisition method, the operating results of acquired companies are included in the Company’s Consolidated Financial Statements beginning on the date of acquisition. The Company completed business acquisitions in 2023 and 2022. Note 2 — Acquisition and Divestiture provides additional information regarding those business acquisitions.

The determination of the fair values of intangible and other assets acquired in an acquisition requires management judgment and the consideration of a number of factors, including the historical financial performance of acquired businesses and their

projected future performance, and estimates surrounding customer turnover, as well as assumptions regarding the level of competition and the costs necessary to reproduce certain assets. Establishing the useful lives of intangible assets also requires management judgment and the evaluation of a number of factors, including the expected use of an asset, historical client retention rates, consumer awareness and trade name history, as well as any contractual provisions that could limit or extend an asset’s useful life.

Charges that are directly related to the Company’s acquisitions are expensed as incurred and classified as Acquisition and integration charges in the Consolidated Statements of Operations. Note 2 — Acquisition and Divestiture provides additional information regarding the Company’s Acquisition and integration charges.

Revenue recognition. The Company’s revenue by significant source is accounted for as follows:

•Insights revenues are mainly derived from subscription contracts for insights products. The related revenues are deferred and recognized ratably over the applicable contract term.

•Conferences revenues are deferred and recognized upon the completion of the related conference or meeting.

•Consulting revenues are principally generated from fixed fee or time and materials engagements. Revenues from fixed fee contracts are recognized as the Company works to satisfy its performance obligations. Revenues from time and materials engagements are recognized as work is delivered and/or services are provided. Revenues related to contract optimization engagements are contingent in nature and are only recognized upon satisfaction of all conditions related to their payment.

The majority of the Company’s Insights contracts are billable upon signing, absent special terms granted on a limited basis from time to time. Insights contracts are generally non-cancellable and non-refundable, except for government contracts that may have cancellation or fiscal funding clauses. When a subscription contract is invoiced, the Company records the billable amount as a fee receivable, representing its legally enforceable right to payment. The corresponding amount is recognized as deferred revenue until the underlying services are provided and control is transferred to the customer. In certain instances, the Company may have satisfied its performance obligations and earned revenue prior to invoicing the customer. In such cases, the Company records an unbilled receivable, which represents its right to payment for services already delivered but not yet billed. Fees derived from assisting organizations in selecting the right business software for their needs are recognized when the leads are provided to vendors. Note 9 — Revenue and Related Matters provides additional information regarding the Company’s business and revenues.

Allowance for losses. The Company estimates uncollectible amounts on its fees receivable using a historical loss rate method.

Cost of services and product development (“COS”). COS expense includes the direct costs incurred in the creation and delivery of the Company’s products and services. These costs primarily relate to personnel.

Selling, general and administrative (“SG&A”). SG&A expense includes direct and indirect selling costs, general and administrative costs, facility costs and bad debt expense.

Commission expense. The Company records deferred commissions upon the recognition of commission liabilities, which is generally aligned with the obtaining of a customer contract or the commencement of subsequent terms in the case of multi-year contracts. The deferred amount is amortized over a period that aligns with the transfer to the customer of the services to which the commissions relate. Note 9 — Revenue and Related Matters provides additional information regarding deferred commissions and the amortization of such costs.

Stock-based compensation expense. The Company accounts for stock-based compensation awards in accordance with FASB ASC Topics 505 and 718 and SEC Staff Accounting Bulletins No. 107 and No. 110. Stock-based compensation expense for equity awards is based on the fair value of the award on the date of grant. The Company recognizes stock-based compensation expense over the period that the related service is performed, which is generally the same as the vesting period of the underlying award. Forfeitures are recognized as they occur. A change in any of the terms or conditions of stock-based compensation awards is accounted for as a modification of the award. Incremental compensation cost is measured as the excess, if any, of the fair value of the modified award over the fair value of the original award immediately before its terms are modified, as measured on the modification date. For vested awards, the Company recognizes incremental compensation cost in the period the modificationoccurs. For unvested awards, the Company recognizes any incremental compensation expense at the modificationdate or ratably over the requisite remaining service period, as appropriate. If the fair value of the modified award is lower than the fair value of the original award immediately before modification, the minimum compensation cost the

Company recognizes is the cost of the original award. Note 10 — Stock-Based Compensation provides additional information regarding the Company’s stock-based compensation activity.

Income taxes. The Company uses the asset and liability method of accounting for income taxes. The Company estimates its income taxes in each of the jurisdictions where it operates. This process involves estimating the Company’s current tax expense or benefit together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in the Consolidated Balance Sheets. When assessing the realizability of deferred tax assets, the Company considers if it is more likely than not that some or all of the deferred tax assets will not be realized. In making this assessment, the Company considers the availability of loss carryforwards, projected reversals of deferred tax liabilities, projected future taxable income, and ongoing prudent and feasible tax planning strategies. The Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained based on the technical merits of the position. Recognized tax positions are measured at the largest amount of benefit with greater than a 50% likelihood of being realized. The Company uses estimates in determining the amount of unrecognized tax benefits associated with uncertain tax positions. Significant judgment is required in evaluating tax law and measuring the benefits likely to be realized. Uncertain tax positions are periodically re-evaluated and adjusted as more information about their ultimate realization becomes available. Note 12 — Income Taxes provides additional information regarding the Company’s income taxes.

Cash and cash equivalents and restricted cash. Cash and cash equivalents includes cash and all highly liquid investments with original maturities of three months or less, which are considered to be cash equivalents. The carrying value of cash equivalents approximates fair value due to the short-term maturity of such instruments. Investments with maturities of more than three months are classified as marketable securities. Interest earned is recorded in Interest income in the Consolidated Statements of Operations.

U.S. GAAP requires that amounts generally described as restricted cash and restricted cash equivalents be presented with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts presented on an entity’s statement of cash flows. Below is a table presenting the beginning-of-period and end-of-period cash amounts from the Company’s Consolidated Balance Sheets and the total cash amounts presented in the Consolidated Statements of Cash Flows (in thousands).

December 31,

Restricted cash classified in (1):

Prepaid expenses and other current assets — — 600 —

Other assets — — — 600

(1)Restricted cash consisted of an escrow account established in connection with one of the Company’s business acquisitions. Generally, such cash is restricted to use due to provisions contained in the underlying acquisition agreement. During the year ended December 31, 2024, the Company paid $0.6 million of restricted cash for deferred consideration related to a 2022 acquisition.

Leases. FASB ASC Topic 842 (“ASC 842”) requires accounting for leases under a right-of-use model whereby a lessee must record a right-of-use asset and a related lease liability on its balance sheet for most of its leases. Under ASC 842, leases are classified as either operating or finance arrangements, with such classification affecting the pattern of expense recognition in an entity’s income statement. For operating leases, ASC 842 requires recognition in an entity’s income statement of a single lease cost, calculated so that the cost of the lease is allocated over the lease term, generally on a straight-line basis.In connection with the continuing evaluation of its existing real estate portfolio, the Company reviewed certain of its right-of-use assets and related other long-lived assets for impairment under FASB ASC Topic 360 (“ASC 360”). As a result of the evaluation, the Company recognized impairment losses of $4.8 million, $10.9 million, and $20.4 million during the years ended December 31, 2025, 2024 and 2023, respectively. Note 7 — Leases provides additional information regarding the Company’s leases.

Property, equipment and leasehold improvements. Equipment, leasehold improvements and other fixed assets owned by the Company are recorded at cost less accumulated depreciation and amortization. Fixed assets, other than leasehold improvements, are depreciated using the straight-line method over the estimated useful life of the underlying asset. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life of the improvement or the remaining

term of the related lease. Depreciation and amortization expense for fixed assets was $118.0 million, $112.1 million and $98.6 million in 2025, 2024 and 2023, respectively. Property, equipment and leasehold improvements, net are presented in the table below (in thousands).

Useful Life December 31,

Less — accumulated depreciation and amortization (396,121) (405,871)

Property, equipment and leasehold improvements, net $ 214,183 $ 242,968

The Company incurs costs to develop internal-use software used in its operations. Certain of those costs that meet the criteria in FASB ASC Topic 350 are capitalized and amortized over future periods. Net capitalized internal-use software development costs were $101.8 million and $122.0 million at December 31, 2025 and 2024, respectively, and are included in Computer equipment and software in the table above. Amortization expense for capitalized internal-use software development costs, which is included with Depreciation in the Consolidated Statements of Operations, totaled $68.4 million, $60.1 million and $47.8 million in 2025, 2024 and 2023, respectively.

Goodwill. Goodwill represents the excess of the purchase price of acquired businesses over the estimated fair values of the tangible and identifiable intangible net assets acquired. Evaluations of the recoverability of goodwill are performed in accordance with FASB ASC Topic 350, which requires an annual assessment of potential goodwill impairment at the reporting unit level and whenever events or changes in circumstances indicate that the carrying value of goodwill may not be recoverable.

When performing the annual assessment of the recoverability of goodwill, the Company initially performs a qualitative analysis evaluating whether any events or circumstances occurred or exist that provide evidence that it is more likely than not that the fair value of any of the Company’s reporting units is less than the related carrying amount. If the Company does not believe that it is more likely than not that the fair value of any of the Company’s reporting units is less than the related carrying amount, then no quantitative impairment test is performed. However, if the results of the qualitative assessment indicate that it is more likely than not that the fair value of a reporting unit is less than its respective carrying amount, then the Company performs a quantitative impairment test. Evaluating the recoverability of goodwill requires judgments and assumptions regarding future trends and events. As a result, both the precision and reliability of management estimates are subject to uncertainty.

The Company’s most recent annual impairment test of goodwill was a quantitative analysis conducted during the quarter ended September 30, 2025 that indicated an impairment of the Company’s Digital Markets reporting unit. During the three months ended September 30, 2025, ongoing weakness in the market as well as changes in the Company’s internal organization structure prompted a revision to the long-term earnings forecast for the Digital Markets business. During the year end ended December 31, 2025, a goodwill impairment loss of $150.0 million was recognized in the Digital Markets reporting unit. The fair value of that reporting unit was estimated using a combination of the expected present value of future cash flows and market approach. Subsequent to completing the 2025 annual impairment test, no events or changes in circumstances were noted that required an interim goodwill impairment test. Note 3 — Goodwill and Intangible Assets provides additional information regarding the Company’s goodwill.

Finite-lived intangible assets. The Company has finite-lived intangible assets that are amortized using the straight-line method over the expected useful life of the underlying asset. Note 3 — Goodwill and Intangible Assets provides additional information regarding the Company’s finite-lived intangible assets.

Impairment of long-lived assets. The Company’s long-lived assets primarily consist of intangible assets other than goodwill, right-of-use assets and property, equipment and leasehold improvements. The Company reviews its long-lived asset groups for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or an asset group may not be recoverable. Such evaluation may be based on a number of factors, including current and projected operating results and cash flows, and changes in management’s strategic direction as well as external economic and market factors. The Company evaluates the recoverability of assets and asset groups by determining whether their carrying values can be recovered through undiscounted future operating cash flows. If events or circumstances indicate that the carrying values might not be recoverable based on undiscounted future operating cash flows, an impairment loss may be recognized. The amount of impairment is

measured based on the difference between the projected discounted future operating cash flows, using a discount rate reflecting the Company’s average cost of funds, and the carrying value of the asset or asset group.

Debt. The Company presents amounts borrowed in the Consolidated Balance Sheets, net of deferred financing fees. Interest accrued on amounts borrowed is recorded as Interest expense in the Consolidated Statements of Operations. Note 6 — Debtprovides additional information regarding the Company’s debt arrangements.

Foreign currency exposure. The functional currency of the Company’s foreign subsidiaries is typically the local currency. All assets and liabilities of foreign subsidiaries are translated into U.S. dollars at exchange rates in effect at the balance sheet date. Income and expense items are translated at average exchange rates throughout the year. The resulting translation adjustments are recorded as foreign currency translation adjustments, a component of Accumulated other comprehensive loss, net within Stockholders’ Equity on the Consolidated Balance Sheets.

Currency transaction gains or losses arising from transactions denominated in currencies other than the functional currency of a subsidiary are recognized in results of operations as part of Other income, net in the Consolidated Statements of Operations. The Company had net currency transaction gains / (losses) of $6.0 million, $(6.9) million and $(6.0) million in 2025, 2024 and 2023, respectively. The Company enters into foreign currency forward exchange contracts to mitigate the effects of adverse fluctuations in foreign currency exchange rates on certain transactions. Those contracts generally have short durations and are recorded at fair value with both realized and unrealized gains and losses recorded in Other income, net. The net (loss) / gain from foreign currency forward exchange contracts was $(3.4) million, $2.5 million and $1.9 million in 2025, 2024 and 2023, respectively. Note 13 — Derivatives and Hedging provides additional information regarding the Company’s foreign currency forward exchange contracts.

Fair value disclosures. The Company has a limited number of assets and liabilities that are adjusted to fair value at each balance sheet date. The Company’s required fair value disclosures are provided at Note 14 — Fair Value Disclosures.

Concentrations of credit risk. Assets that may subject the Company to concentration of credit risk consist primarily of short-term, highly liquid investments classified as cash equivalents, fees receivable, contract assets, interest rate swaps and a pension reinsurance asset. The majority of the Company’s cash equivalent investments and its interest rate swap contracts are with investment grade commercial banks. Fees receivable and contract asset balances deemed to be collectible from customers have limited concentration of credit risk due to the Company’s diverse customer base and geographic dispersion. The Company’s pension reinsurance asset (see Note 15 — Employee Benefits) is maintained with a large international insurance company that was rated investment grade as of December 31, 2025 and 2024.

Stock repurchase programs. The Company records the cost to repurchase shares of its own common stock as treasury stock. Shares repurchased by the Company are added to treasury shares and are not retired. Note 8 — Stockholders’ Equity provides additional information regarding the Company’s common stock repurchase activity.

Gain on event cancellation insurance claims. During the year ended December 31, 2024, the Company received $300.0 million in proceeds from a settlement agreement to resolve litigation concerning the Company's event cancellation insurance for 2020 and 2021. The settlement resolved all remaining 2020 and 2021 event cancellation insurance claims. The Company received $3.1 million in proceeds during the year ended December 31, 2023 related to 2020 conference cancellation insurance claims. The Company does not record any gain on insurance claims in excess of expenses incurred until the receipt of the insurance proceeds is deemed to be realizable.

Adoption of new accounting standard. The Company adopted the accounting standard described below during 2025.

Income Taxes— In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures (“ASU No. 2023-09”). The amendments in this ASU are expected to enhance the transparency and decision usefulness of income tax disclosures. ASU 2023-09 requires entities to enhance income tax disclosures primarily related to the rate reconciliation and income taxes paid information. Companies will need to disaggregate the disclosure of income taxes paid (net of refunds received) by federal, state, and foreign taxes on an annual basis. Additionally, on an annual basis, companies would disclose income taxes paid disaggregated by individual jurisdiction using a quantitative threshold of 5% of total income taxes paid. Public business entities would also be required to provide, on an annual basis, rate reconciliation information by specific categories, including state and local income tax, the effect of cross-border tax laws, foreign tax effects, changes in prior year unrecognized tax benefits, and tax credits, among others. Additionally, some categories would then require disaggregation based on a quantitative threshold of 5%. The foreign tax effect category requires disaggregation by both jurisdiction and nature. The ASU also requires additional qualitative disclosures. All public entities will be required to report income tax information in accordance with the new guidance starting in annual periods beginning after December 15, 2024. The Company adopted ASU 2023-09 effective with the 2025 10-K and the adoption only impacted its disclosures with no impacts to the Company's results of operations, cash flows, or financial condition. The Company has elected prospective adoption of ASU No. 2023-09.

Accounting standards issued but not yet adopted. The FASB has issued accounting standards that have not yet become effective as of December 31, 2025 and may impact the Company’s Consolidated Financial Statements or related disclosures in future periods. The standards and their potential impacts are discussed below.

Income Statement— In November 2024, the FASB issued ASU 2024-03, Income Statement-Reporting Comprehensive Income- Expense Disaggregation Disclosures (“ASU No. 2024-03”). The amendments in this ASU are expected to improve the disclosures about a public business entity’s expenses and address requests from investors for more detailed information about the types of expenses (including employee compensation, depreciation and amortization) in commonly presented expense captions (such as cost of sales, SG&A and research and development). ASU 2024-03 will require a quantitative disclosure of the components of each income statement line item (e.g., cost of services and product development and selling, general and administrative expenses). It will also require entities to disclose the total amount of selling expenses, and, on an annual basis, an entity’s definition of selling expenses. The amendments are effective for annual periods with fiscal years beginning after December 15, 2026, and interim periods in fiscal years beginning after December 15, 2027. The Company expects this ASU to only impact its disclosures with no impacts to the Company's results of operations, cash flows, or financial condition.

Credit Losses—In July 2025, the FASB issued ASU 2025-05, Financial Instruments – Credit Losses (Topic 326). The amendments in this ASU introduce a practical expedient for all entities related to applying Subtopic 326-20 to current accounts receivable and current contact assets arising from transactions accounted for under Topic 606. In developing reasonable and supportable forecasts as part of estimating expected credit losses, all entities may elect a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. The amendments are expected to provide decision-useful information to investors and other financial statement users while reducing the time and effort necessary to analyze and estimate credit losses for current accounts receivable and current contract assets. The amendments will be effective for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. Early adoption is permitted in both interim and annual reporting periods in which financial statements have not yet been issued or made available for issuance. The Company expects this ASU will not have a material impact to the Company's results of operations, cash flows, or financial condition.

Internal-use Software— In September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-Internal Use Software (Subtopic 350-40). The amendments in this ASU remove all references to project stages, and requires entities to start capitalizing software costs when (1) management has authorized and committed to funding the software project and (2) it is probable that the project will be completed and the software will be used to perform the function intended. The amendments are effective for annual periods with fiscal years beginning after December 15, 2027, and interim reporting periods within those annual reporting periods. The Company expects this ASU will not have a material impact to the Company's results of operations, cash flows, or financial condition.

Note 2 — Acquisition and Divestiture

Acquisition

Year Ended December 31, 2023

In September 2023, the Company acquired 100% of a formerly independent sales agent of Gartner Insights products in the Czech Republic for an aggregate purchase price of $7.9 million, including cash acquired and deferred consideration. During the year ended December 31, 2024, the Company paid $2.0 million of deferred consideration.

Divestiture

In February 2023, the Company completed the sale of a non-core business, TalentNeuron, for approximately $161.1 million after consideration of post-close adjustments. The Company recorded a pre-tax gain of $135.4 million on the sale of TalentNeuron, which is included in Gain from sale of divested operation in the Consolidated Statement of Operations for the year ended December 31, 2023. TalentNeuron was included in the Company’s Insights segment.

Acquisition and Integration Charges

The Company recognized $1.0 million and $9.6 million of Acquisition and integration charges during 2024 and 2023, respectively. Acquisition and integration charges reflect additional costs and expenses resulting from the Company’s acquisitions and divestitures and include, among other items, professional fees and personnel related expenses.

Note 3 — Goodwill and Intangible Assets

Goodwill.The table below presents changes to the carrying amount of goodwill by segment during the two-year period ended December 31, 2025 (in thousands).

Insights Conferences Consulting Other Total

Additions due to an acquisition

Reclassified as held-for-sale (2) — — — (49,057) (49,057)

Accumulated impairment loss (1) $ — $ — $ — $ (150,000) $ (150,000)

(1)The Company recognized an impairment loss of $150.0 million during the year ended December 31, 2025.

(2)Represents amounts reclassified to Assets held-for-sale due to the pending divestiture of the Company’s Digital Markets business. See Note 19 — Subsequent Events for additional information.

Finite-lived intangible assets. Changes in finite-lived intangible assets during the two-year period ended December 31, 2025 are presented in the tables below (in thousands).

December 31, 2025 CustomerRelationships Other Total

Intangible assets fully amortized (73,589) — (73,589)

Foreign currency translation impact 23,429 — 23,429

December 31, 2024 CustomerRelationships Technology-related Other Total

Intangible assets fully amortized — (11,200) — (11,200)

Foreign currency translation impact (5,266) — — (5,266)

(1)Finite-lived intangible assets are amortized using the straight-line method over the following periods: Customer relationships—6 to 13 years; Technology-related—3 to 7 years; and Other —11 years.

Amortization expense related to finite-lived intangible assets was $82.3 million, $90.2 million and $92.5 million in 2025, 2024 and 2023, respectively. The estimated future amortization expense by year for finite-lived intangible assets is presented in the table below (in thousands).

Note 4 — Other Assets

The Company’s other assets are summarized in the table below (in thousands).

December 31,

Note 5 — Accounts Payable and Accrued and Other Liabilities

The Company’s Accounts payable and accrued liabilities are summarized in the table below (in thousands).

December 31,

Current portion of operating lease liabilities 96,076 100,312

The Company’s Other liabilities are summarized in the table below (in thousands).

December 31,

Note 6 — Debt

The Company’s total outstanding borrowings are summarized in the table below (in thousands).

December 31,

2024 Credit Agreement - Revolving credit facility (1) $ — $ 274,400

Less: Deferred financing fees and unamortized discounts (4) (23,326) (19,485)

(1)The Company had approximately $1.0 billion of available borrowing capacity on the 2024 Credit Agreement revolver (not including the expansion feature) as of December 31, 2025.

(2)Consists of a State of Connecticut economic development loan originated in 2019 with a 10-year maturity and bears interest at a fixed rate of 1.75%. The Company expects to repay the loan in 2026.

(3)The weighted average annual effective rate on the Company’s outstanding debt for 2025, including the effects of its interest rate swaps discussed below, was 4.66%.

(4)Deferred financing fees and unamortized discounts and are being amortized to Interest expense over the term of the related debt obligation.

2024 Credit Agreement

On March 26, 2024, the Company entered into a Credit Agreement (the “2024 Credit Agreement”) among the Company, as borrower, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent (the “Administrative Agent”).

The 2024 Credit Agreement provides for a $1.0 billion senior unsecured five-year revolving facility. The facility may be increased, at the Company’s option and under certain conditions, by up to an additional $750.0 million in the aggregate. The facility may be used for revolving loans, and up to $75.0 million may be used for letters of credit. The revolving loans may be borrowed, repaid and re-borrowed until March 26, 2029, at which time all amounts borrowed must be repaid, subject to customary extension mechanics.

Interest under the revolving facility accrues, at a variable rate, based on, at our option, (i) the Secured Overnight Funding Rate (“SOFR”) plus a credit spread adjustment of 0.10% or (ii) an alternate base rate (“Base Rate”) plus, in each case, an applicable margin, and is payable monthly. The applicable margin ranges between 1.125% and 1.75%, depending on the lower rate determined by either the Company’s leverage ratio or the credit rating of the Company’s senior unsecured debt. At December 31, 2025, the applicable all-in margin on the revolving facility was 1.350% (including the credit spread adjustment). The contractual annualized interest rate as of December 31, 2025 on the 2024 Credit Agreement was 5.35%, which consisted of Term Secured Overnight Financing Rate (“SOFR”) of 4.00% plus a margin of 1.35%. The commitment fee payable on the

unused portion of the facility is equal to between 0.125% and 0.25% based on utilization of the facility. The Company has also agreed to pay customary letter of credit fees.

The 2024 Credit Agreement contains certain customary restrictive loan covenants, including, among others, a financial covenant requiring a maximum leverage ratio and covenants limiting the Company’s ability to grant liens, make acquisitions, be acquired and the ability of the Company’s subsidiaries to incur indebtedness. Subsidiaries of the Company are not required to guarantee obligations under the facility, unless such subsidiaries guarantee indebtedness in excess of a threshold set out in the 2024 Credit Agreement, subject to certain limitations and exceptions.

The 2024 Credit Agreement contains customary events of default that include, among others, non-payment of principal, interest or fees, material inaccuracy of representations and warranties, violation of covenants, cross defaults to certain other indebtedness, bankruptcy and insolvency events, ERISA defaults, material judgments, and events constituting a change of control. The occurrence of an event of default allows the lenders to terminate their obligations to lend under the 2024 Credit Agreement and could result in the acceleration of the Company’s obligations under the facility.

2031 and 2035 Notes

On November 20, 2025, the Company completed the public offering and issuance of $350.0 million aggregate principal amount of its 4.950% Senior Notes due 2031 and $450.0 million aggregate principal amount of its 5.600% Senior Notes due 2035 (together, the “Notes”). The 2031 Notes were issued at an issue price of 99.970% and the the 2035 Notes were issued at an issue price of 99.992%. The Notes were offered and sold pursuant to Gartner’s automatic shelf registration statement on Form S-3 (File No. 333-291447) and the prospectus included therein, filed with the Securities and Exchange Commission on November 12, 2025, and supplemented by the prospectus supplement dated November 13, 2025.

Gartner received approximately $799.9 million in net proceeds, after discounts and before underwriting fees and offering expenses, from the sale of the Notes. The Company used a portion of the net proceeds from the offering of the notes to repay the $274.4 million then outstanding under the 2024 Credit Agreement and to pay related fees and expenses, with remaining amounts to be used for general corporate purposes, which may include, without limitation, potential repurchases of its common stock.

2029 Notes

On June 18, 2021, the Company issued $600.0 million aggregate principal amount of 3.625% Senior Notes due 2029. The 2029 Notes were issued pursuant to an indenture, dated as of June 18, 2021 (the “2029 Note Indenture”), among the Company, the guarantors party thereto and U.S. Bank National Association, as trustee.

The 2029 Notes were issued at an issue price of 100.0% and bear interest at a rate of 3.625% per annum. Interest on the 2029 Notes is payable on June 15 and December 15 of each year, beginning on December 15, 2021. The 2029 Notes will mature on June 15, 2029. The Company may redeem some or all of the 2029 Notes at any time on or after June 15, 2024 for cash at the redemption prices set forth in the 2029 Note Indenture, plus accrued and unpaid interest to, but excluding, the redemption date.

2030 Notes

On September 28, 2020, the Company issued $800.0 million aggregate principal amount of 3.75% Senior Notes due 2030. The 2030 Notes were issued pursuant to an indenture, dated as of September 28, 2020 (the “2030 Note Indenture”), among the Company, the guarantors party thereto and U.S. Bank National Association, as trustee.

The 2030 Notes were issued at an issue price of 100.0% and bear interest at a rate of 3.75% per annum. Interest on the 2030 Notes is payable on April 1 and October 1 of each year, beginning on April 1, 2021. The 2030 Notes will mature on October 1, 2030.

The Company may redeem some or all of the 2030 Notes at any time on or after October 1, 2025 for cash at the redemption prices set forth in the 2030 Note Indenture, plus accrued and unpaid interest to, but excluding, the redemption date. Prior to October 1, 2025, the Company may redeem up to 40% of the aggregate principal amount of the 2030 Notes in connection with certain equity offerings, or some or all of the 2030 Notes with a “make-whole” premium, in each case subject to the terms set forth in the 2030 Note Indenture.

2028 Notes

On June 22, 2020, the Company issued $800.0 million aggregate principal amount of 4.50% Senior Notes due 2028. The 2028 Notes were issued pursuant to an indenture, dated as of June 22, 2020 (the “2028 Note Indenture”), among the Company, the guarantors party thereto and U.S. Bank National Association, as trustee.

The 2028 Notes were issued at an issue price of 100.0% and bear interest at a rate of 4.50% per annum. Interest on the 2028 Notes is payable on January 1 and July 1 of each year, beginning on January 1, 2021. The 2028 Notes will mature on July 1, 2028.

The Company may redeem some or all of the 2028 Notes at any time on or after July 1, 2023 for cash at the redemption prices set forth in the 2028 Note Indenture, plus accrued and unpaid interest to, but excluding, the redemption date.

Interest Rate Swap

Prior to September 30, 2025, the Company had one fixed-for-floating interest rate swap contract with a notional value of $350.0 million. Under the contract, the Company paid a base fixed rate of 2.98% and in return received a floating Term SOFR base rate on 30-day notional borrowings. The swap contract matured in September 2025.

Note 7 — Leases

The Company’s leasing activities are primarily for facilities under cancelable and non-cancelable lease agreements expiring during 2026 and through 2038. These facilities support the Company’s executive and administrative activities, insights and consulting, sales, systems support, operations, and other functions. The Company also has leases for office equipment and other assets, which are not significant. Certain of the Company’s lease agreements include (i) renewal options to extend the lease term for up to ten years and/or (ii) options to terminate the agreement within one year. Additionally, certain of the Company’s lease agreements provide standard recurring escalations of lease payments for, among other things, increases in a lessor’s maintenance costs and taxes. Under some lease agreements, the Company may be entitled to allowances, free rent, lessor-financed tenant improvements and other incentives. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants.

The Company subleases certain office space that it does not intend to occupy. Such sublease arrangements expire during 2026 and through 2032 and primarily relate to facilities in Arlington, Virginia. Certain of the Company’s sublease agreements: (i) include renewal and termination options; (ii) provide for customary escalations of lease payments in the normal course of business; and (iii) grant the subtenant certain allowances, free rent, Gartner-financed tenant improvements and other incentives.

Lease Accounting under ASC 842

Under ASC 842, a lease is a contract or an agreement, or a part of another arrangement, between two or more parties that, at its inception, creates enforceable rights and obligations that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration.

Right-of-use assets represent a right to use an underlying asset for the lease term and the related lease liability represents an obligation to make lease payments pursuant to the contractual terms of the lease agreement. Right-of-use assets and lease liabilities are initially recognized on the lease commencement date based on the present value of the lease payments over the lease term. For all of the Company’s facilities leases, the Company accounts for both lease components and nonlease components (e.g., common area maintenance charges, etc.) as a single lease component when determining the present value of the Company’s lease payments. Variable lease payments that are not dependent on an index or a rate are excluded from the determination of right-of-use assets and lease liabilities and such payments are recognized as expense in the period when the related obligation is incurred.

The Company’s lease agreements do not provide implicit interest rates. Instead, the Company uses an incremental borrowing rate determined on the lease commencement date to calculate the present value of future lease payments. The incremental borrowing rate is calculated for each individual lease and represents the rate of interest that the Company would have to pay to borrow on a collateralized basis (in the currency that the lease is denominated) over a similar term an amount equal to the lease payments in a similar economic environment. Right-of-use assets also include initial direct costs incurred by the Company and lease payments made to a lessor on or before the related lease commencement date, less any lease incentives received directly from the lessor.

Certain of the Company’s facility lease agreements include options to extend or terminate the lease. When it is reasonably certain that the Company will exercise a renewal or termination option, the present value of the lease payments for the affected

lease is adjusted accordingly. Leases with a term of twelve months or less are accounted for in the same manner as long-term lease arrangements, including any related disclosures. Lease expense for operating leases is generally recognized on a straight-line basis over the lease term, unless the related right-of-use asset was previously impaired.

All of the Company’s existing sublease arrangements have been classified as operating leases with sublease income recognized on a straight-line basis over the term of the sublease arrangement. To measure the Company’s periodic sublease income, the Company elected to use a practical expedient under ASC 842 to aggregate nonlease components with the related lease components when (i) the timing and pattern of transfer for the nonlease components and the related lease components are the same and (ii) the lease components, if accounted for separately, would be classified as an operating lease. This practical expedient applies to all of the Company’s existing sublease arrangements.

When the projected lease cost for the term of a sublease exceeds the anticipated sublease income for that same period, the Company treats that circumstance as an indicator that the carrying amount of the related right-of-use asset may not be fully recoverable. In those situations, the Company performs an impairment analysis and, if indicated, the Company records a charge against earnings to reduce the right-of-use asset to the amount deemed to be recoverable in the future.

On the Consolidated Balance Sheet, right-of-use assets are classified and reported in Operating lease right-of-use assets, and the related lease liabilities are included in Accounts payable and accrued liabilities (current) and Operating lease liabilities (long-term). On the Consolidated Statement of Cash Flows, the reduction in the carrying amount of right-of-use assets is presented separately and the change in operating lease liabilities is included under Accounts payable and accrued and other liabilities in the reconciliation of net income to cash provided by operating activities.

All of the Company’s leasing and subleasing activities are recognized in Selling, general and administrative expense in the Consolidated Statements of Operations. The table below presents the Company’s net lease cost and certain other information related to the Company’s leasing activities as of and for the years ended December 31, 2025, 2024 and 2023 (dollars in thousands).

Year Ended December 31,

Weighted average discount rate for operating leases 5.6 % 6.4 % 6.6 %

(1)Included in operating lease cost was $33.4 million, $36.4 million and $43.1 million of costs for subleasing activities during 2025, 2024, and 2023 respectively.

(2)These amounts are primarily variable lease and nonlease costs that were not fixed at the lease commencement date or are dependent on something other than an index or a rate.

(3)The Company capitalized de minimus amounts for initial direct costs for operating leases during 2025 and 2023.

(4)Amount excludes impairment charges of $4.8 million, $10.9 million, and $20.4 million for the years ended December 31, 2025, 2024, and 2023 respectively, as discussed below.

As of December 31, 2025, the (i) maturities of operating lease liabilities under non-cancelable arrangements and (ii) estimated future sublease cash receipts from non-cancelable arrangements were as follows (in thousands):

Operating Sublease

Lease Cash

Period ending December 31, Payments Receipts

Total operating lease liabilities per the Consolidated Balance Sheet $ 366,276

(1)Approximately 74% of the operating lease payments pertain to properties in the United States.

The table below indicates where the discounted operating lease payments from the above table are classified in the Consolidated Balance Sheet (in thousands).

December 31,

Accounts payable and accrued liabilities $ 96,076 $ 100,312

In connection with the continuing evaluation of its existing real estate portfolio, the Company reviewed certain of its right-of-use assets and related other long-lived assets for impairment under ASC 360. As a result of the evaluation, the Company recognized impairment losses of $4.8 million, $10.9 million and $20.4 million during the years ended December 31, 2025, 2024, and 2023, respectively, which are included as a component of Selling, general and administrative expenses in the accompanying Consolidated Statements of Operations. The impairment loss for the year ended December 31, 2025 includes $2.3 million related to right-of-use assets partially offset by a $1.0 million reduction in lease-related liabilities and $3.5 million related to other long-lived assets, primarily leasehold improvements. The impairment loss for the year ended December 31, 2024 includes $56.7 million related to right-of-use assets partially offset by a $56.1 million reduction in lease liabilities and $10.3 million related to other long-lived assets, primarily leasehold improvements. The impairment loss for the year ended December 31, 2023 includes $14.7 million related to right-of-use assets and $5.7 million related to other long-lived assets, primarily leasehold improvements.

During the fourth quarter of 2024, the Company entered into an amended lease agreement to significantly reduce the square footage and reduce future lease payments at one of its leased locations. The Company made an installment payment of $24.0 million during each of the fourth quarter of 2024 and the second quarter of 2025 in consideration for the lease amendment.

The fair values for the asset groups relating to the impaired long-lived assets were estimated primarily using discounted cash flow models (income approach) with Level 3 inputs. The significant assumptions used in estimating fair value include the expected downtime prior to the commencement of future subleases, projected sublease income over the remaining lease periods and discount rates that reflect the level of risk associated with receiving future cash flows.

Note 8 — Stockholders’ Equity

Common stock. Holders of Gartner’s common stock, par value $0.0005 per share, are entitled to one vote per share on all matters to be voted by stockholders. The Company does not currently pay cash dividends on its common stock. Also, the 2024 Credit Agreement contains a negative covenant that may limit the Company’s ability to pay dividends. The table below summarizes transactions relating to the Company’s common stock for the three years ended December 31, 2025.

IssuedShares TreasuryStockShares

Issuances under stock plans — (975,745)

Issuances under stock plans — (666,193)

Issuances under stock plans — (511,759)

(1)The Company used a total of $2.0 billion, $0.7 billion and $0.6 billion in cash for share repurchases during 2025, 2024 and 2023, respectively.

Share repurchase authorization. In 2015, the Company’s Board of Directors (the “Board”) authorized a share repurchase program to repurchase up to $1.2 billion of the Company’s common stock. From February 2021 to September 2025, the Board authorized incremental share repurchases of up to an aggregate additional $5.8 billion of the Company’s common stock. $0.7 billion remained available as of December 31, 2025. The Board also authorized incremental share repurchases of up to an additional $500 million in January 2026. The Company may repurchase its common stock from time-to-time in amounts, at prices and in the manner that the Company deems appropriate, subject to the availability of stock, prevailing market conditions, the trading price of the stock, the Company’s financial performance and other conditions. Repurchases may be made through open market purchases (which may include repurchase plans designed to comply with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended), accelerated share repurchases, private transactions or other transactions and will be funded by cash on hand and borrowings. Repurchases may also be made from time-to-time in connection with the settlement of the Company’s stock-based compensation awards.

Accumulated Other Comprehensive Income (Loss), net (“AOCI/L”)

The tables below provide information about the changes in AOCI/L by component and the related amounts reclassified out of AOCI/L to income during the years indicated (net of tax, in thousands) (1).

Year Ended December 31, 2025

Other comprehensive income (loss) activity during the year:

Change in AOCI/L before reclassifications to income — (930) 38,248 37,318

Year Ended December 31, 2024

Other comprehensive income (loss) activity during the year:

Change in AOCI/L before reclassifications to income — 315 (26,881) (26,566)

(1)Amounts in parentheses represent debits (deferred losses).

(2)$13.2 million and $19.1 million of the reclassifications related to interest rate swaps (cash flow hedges) were recorded in Interest expense for the year ended December 31, 2025 and 2024, respectively. See Note 6 — Debt and Note 13 — Derivatives and Hedging for information regarding the cash flow hedges.

(3)The reclassifications related to defined benefit pension plans were primarily recorded in Selling, general and administrative expense, net of tax effect. See Note 15 — Employee Benefits for information regarding the Company’s defined benefit pension plans.

Note 9 — Revenue and Related Matters

Our Business and Revenues

Gartner delivers its products and services globally through three reportable segments – Insights, Conferences and Consulting, as described below.

Insights

Insights revenues are derived from subscription contracts for insights products, representing substantially all of the segment’s revenue. The related revenues are deferred and recognized ratably over the applicable contract term (i.e., as services are provided over the contract period).

The Company enters into subscription contracts for published products that generally are for twelve-month periods or longer. Historically, approximately 80% to 85% of the Company’s annual and multi-year Insights subscription contracts provide for billing of the first full service period upon signing. In subsequent years, multi-year subscription contracts are normally billed prior to the contract’s anniversary date. Other Insights subscription contracts are usually invoiced in advance, commencing with the contract signing, on (i) a quarterly, monthly or other recurring basis or (ii) in accordance with a customized invoicing schedule. Insights contracts are generally non-cancelable and non-refundable, except for government contracts that may have cancellation or fiscal funding clauses, which have not historically resulted in material cancellations. When a subscription contract is invoiced, the Company records the billable amount as a fee receivable, representing its legally enforceable right to payment. The corresponding amount is recognized as deferred revenue until the underlying services are provided and control is transferred to the customer. In certain instances, the Company may have satisfied its performance obligations and earned revenue prior to invoicing the customer. In such cases, the Company records an unbilled receivable, which represents its right to payment for services already delivered but not yet billed.

Conferences

The Company earns revenues from both the attendees and exhibitors at Gartner conferences and meetings. Attendees are generally invoiced for the full attendance fee upon their completion of an online registration form or their signing of a contract, while exhibitors typically make several individual payments commencing with the signing of a contract. Almost all of the invoiced amounts are collected in advance of the related activity, resulting in the recording of deferred revenue. Both the attendee and exhibitor revenues are recognized as the related performance obligations are satisfied (i.e., when the related conference is held).

The Company defers certain costs directly related to specific conferences and meetings and expenses those costs in the period during which the related activity occurs. The Company’s policy is to defer only those costs that are incremental and directly

attributable to a specific activity, primarily prepaid site and production services costs. Other costs of organizing and producing conference activities, primarily Company personnel and non-conference specific expenses, are expensed in the period incurred.

Consulting

Consulting revenues, primarily derived from custom consulting and measurement services, are principally generated from fixed fee or time and materials engagements. Revenues from fixed fee engagements are recognized as the Company works to satisfy its performance obligations, while revenues from time and materials engagements are recognized as work is delivered and/or services are provided. In both of these circumstances, performance obligations are satisfied and control of the services is passed to customers over time (i.e., during the duration of the contract or consulting engagement). On a contract-by-contract basis, the Company typically uses actual labor hours incurred compared to total expected labor hours to measure the Company’s performance in respect of fixed fee engagements. If labor and other costs on an individual contract are expected to exceed the total contract value or the contract’s funded ceiling amount, the Company reflects an adjustment to the contract’s overall profitability in the period determined. Revenues related to contract optimization engagements are contingent in nature and are only recognized at the point in time when all of the conditions related to their payment have been satisfied.

Consulting customers are invoiced based on the specific terms and conditions in their underlying contracts. They are typically invoiced after the Company has satisfied some or all of the related performance obligations and the related revenue has been recognized. The Company records fees receivable for amounts that are billed or billable. Contract assets are also recorded representing amounts for which the Company has recognized revenue but lacks the unconditional right to payment as of the balance sheet date due to the required continued performance under the relevant contract, progress billing milestones or other billing-related restrictions.

Fees derived from assisting organizations in selecting the right business software for their needs are recognized when the leads are provided to vendors.

Disaggregated Revenue

Disaggregated revenue by reportable segment is presented in the tables below for the years indicated (in thousands).

By Primary Geographic Market(1)

Year Ended December 31, 2025

Primary Geographic Market Insights Conferences Consulting Other Total

Year Ended December 31, 2024

Primary Geographic Market Insights Conferences Consulting Other Total

Year Ended December 31, 2023

Primary Geographic Market Insights Conferences Consulting Other Total

(1)Revenue is reported based on where the sale is fulfilled.

The Company’s revenue is generated primarily through direct sales to clients by domestic and international sales forces and a network of independent international sales agents. Most of the Company’s products and services are provided on an integrated worldwide basis and, because of this integrated delivery approach, it is not practical to precisely separate Company’s revenue by geographic location. Accordingly, revenue information presented in the above tables is based on internal allocations, which involve certain management estimates and judgments.

By Timing of Revenue Recognition

Year Ended December 31, 2025

Timing of Revenue Recognition Insights Conferences Consulting Other Total

Year Ended December 31, 2024

Timing of Revenue Recognition Insights Conferences Consulting Other Total

Year Ended December 31, 2023

Timing of Revenue Recognition Insights Conferences Consulting Other Total

(1)Insights revenues were recognized in connection with performance obligations that were satisfied over time using a time-elapsed output method to measure progress. Consulting revenues were recognized over time using labor hours as an input measurement basis.

(2)The revenues in this category were recognized in connection with performance obligations that were satisfied at the point in time that the contractual deliverables were provided to the customer.

Determining a measure of progress for performance obligations that are satisfied over time and when control transfers for performance obligations that are satisfied at a point in time requires management to make judgments that affect the timing of revenue recognition. A key factor in this determination is when the customer can direct the use of, and can obtain substantially all of the benefits from, the deliverable.

For performance obligations recognized in accordance with a time-elapsed output method, the Company’s efforts are expended consistently throughout the contractual period and the Company transfers control evenly by providing stand-ready services. For performance obligations satisfied under Consulting fixed fee or time and materials engagements, the Company believes that labor hours are the best measure of depicting the Company’s progress because labor output corresponds directly to the value of the Company’s performance to date as control is transferred.

For customer contracts that are greater than one year in duration, the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially unsatisfied) as of December 31, 2025 was approximately $6.4 billion. The Company expects to recognize $3.9 billion, $2.0 billion and $0.5 billion of this revenue (most of which pertains to Insights) during the year ending December 31, 2026, the year ending December 31, 2027 and thereafter, respectively. The Company applies a practical expedient allowed in FASB ASC Topic 606 and, accordingly, it does not disclose such performance obligation information for customer contracts that have original durations of one year or less. The Company’s performance obligations for contracts meeting this ASC 606 disclosure exclusion primarily include: (i) stand-ready services under Insights subscription contracts; (ii) holding conferences and meetings where attendees and exhibitors can participate; and (iii) providing customized Consulting solutions for clients under fixed fee or time and materials engagements. The remaining duration of these performance obligations is generally less than one year, which aligns with the period that the parties have enforceable rights and obligations under the affected contracts.

Customer Contract Assets and Liabilities

The payment terms and conditions in the Company’s customer contracts vary. In some cases, customers prepay and, in other cases, after the Company conducts a credit evaluation, payment may be due in arrears. Because the timing of the Company’s service delivery typically differs from the timing of customer payments, the Company recognizes either a contract asset (the Company performs either fully or partially under the contract but a contingency remains) or a contract liability (upfront customer payments precede the Company’s performance, resulting in deferred revenue). Amounts recorded as contract assets are reclassified to fees receivable when all of the outstanding conditions have been resolved and the Company’s right to payment becomes unconditional. Contracts with payments due in arrears are also recognized as fees receivable. As contractual performance obligations are satisfied, the Company correspondingly relieves its contract liabilities and records the associated revenue.

The table below provides information regarding certain of the Company’s balance sheet accounts that pertain to its contracts with customers (in thousands).

December 31,

Assets:

Contract liabilities:

Non-current deferred revenues recorded in Other liabilities (3) 31,569 27,389

(1)Fees receivable represent an unconditional right of payment from the Company’s customers and include both billed and unbilled amounts.

(2)Contract assets represent recognized revenue for which the Company does not have an unconditional right to payment as of the balance sheet date because the project may be subject to a progress billing milestone or some other billing restriction.

(3)Deferred revenues represent amounts (i) for which the Company has received an upfront customer payment or (ii) that pertain to recognized fees receivable. Both situations occur before the completion of the Company’s performance obligation(s).

The Company recognized revenue of $2.4 billion, $2.3 billion and $2.0 billion during 2025, 2024 and 2023 respectively, which was attributable to deferred revenues that were recorded at the beginning of each such year. Those amounts primarily consisted of (i) Insights revenues and (ii) Conferences revenues pertaining to conferences and meetings that occurred during the reporting periods. During 2025, 2024 and 2023, the Company did not record any material impairments related to its contract assets.

Costs of Obtaining and Fulfilling a Customer Contract

When the Company concludes that a liability should be recognized for the costs of obtaining a customer contract and determines how such liability should be measured, certain commissions are capitalized as a recoverable direct incremental cost of obtaining the underlying contract. No other amounts are capitalized as a cost of obtaining or fulfilling a customer contract because no expenditures have been identified that meet the requisite capitalization criteria. For Insights and Consulting, the

Company amortizes deferred commissions on a systematic basis that aligns with the transfer to customers of the services to which the commissions relate. For Conferences, deferred commissions are expensed during the period when the related conference or meeting occurs.

During 2025, 2024 and 2023, deferred commission amortization expense was $612.3 million, $574.3 million and $550.5 million, respectively, and was included in Selling, general and administrative expense in the Consolidated Statements of Operations. The Company classifies Deferred commissions as a current asset on the Consolidated Balance Sheets at both December 31, 2025 and 2024 because those costs were, or will be, amortized over the twelve months following the respective balance sheet dates.

Note 10 — Stock-Based Compensation

The Company grants stock-based compensation awards as an incentive for employees and directors to contribute to the Company’s long-term success. The Company currently awards stock-settled stock appreciation rights, service-based and performance-based restricted stock units, and common stock equivalents. As of December 31, 2025, the Company had 5.2 million shares of its common stock, par value $0.0005 per share, (the “Common Stock”) available for stock-based compensation awards under its Long-Term Incentive Plan as amended and restated in June 2023 (the “Plan”). Currently, the Company issues treasury shares upon the exercise, release or settlement of stock-based compensation awards.

Determining the appropriate fair value model and calculating the fair value of stock-based compensation awards requires the use of certain subjective assumptions, including the expected life of a stock-based compensation award and Common Stock price volatility. In addition, determining the appropriate periodic stock-based compensation expense requires management to estimate the likelihood of the achievement of certain performance targets. The assumptions used in calculating the fair values of stock-based compensation awards and the related periodic expense represent management’s best estimates, which involve inherent uncertainties and the application of judgment. As a result, if circumstances change and the Company deems it necessary in the future to modify the assumptions it made or to use different assumptions, or if the quantity and nature of the Company’s stock-based compensation awards changes, then the amount of expense may need to be adjusted and future stock-based compensation expense could be materially different from what has been recorded in the current year.

Stock-Based Compensation Expense

The tables below summarize the Company’s stock-based compensation expense by award type and expense category line item during the years ended December 31 (in millions).

Stock appreciation rights $ 13.2 $ 13.5 $ 10.5

Common stock equivalents 0.9 1.1 1.1

Cost of services and product development $ 62.8 $ 61.8 $ 53.3

Selling, general and administrative 93.1 93.0 76.5

(1)Includes charges of $68.7 million, $71.4 million and $55.5 million during 2025, 2024 and 2023, respectively, for awards to retirement-eligible employees. Those awards vest on an accelerated basis.

As of December 31, 2025, the Company had $155.5 million of total unrecognized stock-based compensation cost, which is expected to be expensed over the remaining weighted average service period of approximately 1.6 years.

Stock-Based Compensation Awards

The disclosures presented below provide information regarding the Company’s stock-based compensation awards, all of which have been classified as equity awards in accordance with FASB ASC Topic 505.

Stock Appreciation Rights

Stock-settled stock appreciation rights (“SARs”) permit the holder to participate in the appreciation of the value of the Common Stock. After the applicable vesting criteria have been satisfied, SARs are settled in shares of Common Stock upon exercise by the employee. SARs vest ratably over a four-year service period and expire seven years from the date of grant. The fair value of a SARs award is recognized as compensation expense on a straight-line basis over four years. SARs have only been awarded to the Company’s executive officers.

When SARs are exercised, the number of shares of Common Stock issued is calculated as follows: (1) the total proceeds from the exercise of the SARs award (calculated as the closing price of the Common Stock as reported on the New York Stock Exchange on the date of exercise less the exercise price of the SARs award, multiplied by the number of SARs exercised) is divided by (2) the closing price of the Common Stock on the date of exercise. Upon exercise, the Company withholds a portion of the shares of the Common Stock to satisfy statutory tax withholding requirements. SARs recipients do not have any stockholder rights until the shares of Common Stock are issued in respect of the award, which is subject to the prior satisfaction of the vesting and other criteria relating to such grants.

IT US Equity

IT · 10-K · period ended 2025-12-31

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING ANDFINANCIAL DISCLOSURE.

ITEM 9A. CONTROLS AND PROCEDURES.

ITEM 9B. OTHER INFORMATION.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.

ITEM 11. EXECUTIVE COMPENSATION.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

IT US Equity☆

IT · 10-K · period ended 2025-12-31

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING ANDFINANCIAL DISCLOSURE.

ITEM 9A. CONTROLS AND PROCEDURES.

ITEM 9B. OTHER INFORMATION.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.

ITEM 11. EXECUTIVE COMPENSATION.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

IT US Equity