Financial Analysis

Business Combinations Overview of Acquisition Strategy Our acquisition strategy focuses on building expertise within an assembled workforce to enhance our strategic business platforms and agency brands, including expanding geographic reach and service offerings. In evaluating acquisitions, we consider factors such as specialized know-how, competitive position, client relationships, and geographic coverage, with expected benefits typically shared across multiple agencies and regions. One of the primary drivers of executing our acquisition strategy is the existence of, or the ability to expand, our existing client relationships. The expected benefits of our acquisitions are typically shared across multiple agencies and regions. For each acquisition, we identify and separately value identifiable intangible assets using market participant assumptions to determine fair value. This approach includes consideration of similar and recent transactions, the use of discounted expected cash flow methodologies, and, when available and as appropriate, the use of comparative market multiples to supplement our analysis. Identifiable intangible assets primarily consist of customer relationships, trade names, and core technology, software tools and platforms for internal use. General Acquisition Activity In 2025, we completed two acquisitions that increased goodwill by $7,698.6 million, the most significant of which was the Merger with IPG, discussed below. During 2025 and 2024, we also acquire …

BusinessCombinationDisclosureTextBlock · excerpt; the full note is in the filing

Commitments and Contingent Liabilities In the ordinary course of business, we are involved in various legal proceedings. We do not expect that such proceedings will have a material adverse effect on our business, results of operations or financial condition.

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Debt IPG Senior Note s Exchange Offers In connection with the Merger, Omnicom commenced offers to exchange all outstanding notes of certain series issued by IPG for up to $2.95 billion in aggregate principal amount of new notes issued by Omnicom. As a result of these exchange offers, which were completed on December 2, 2025, approximately 94% of IPG's outstanding senior notes were exchanged for $2.76 billion in aggregate principal amount of new notes issued by Omnicom (the Exchange Senior Notes). The only cash exchanged was related to the consent payment of $2.7 million and the remaining debt exchange is presented as a non-cash financing activity. The remainder of the acquired IPG senior notes, representing approximately $185.0 million in aggregate principal amount (the IPG Senior Notes), that were not exchanged pursuant to the exchange offers remain obligations of IPG and will continue to be subject to their existing terms, as modified by the amendments made in the exchange offers and consent solicitations. Collectively, the aggregate principal amount of the Exchange Senior Notes and IPG Senior Notes is $2.95 billion. As of December 31, 2025, the unamortized discount related to the fair value adjustment of the Exchange Senior Notes and IPG Senior Notes was $183.9 million. Consent payments in connection with the exchange offers included $2.7 million capitalized as debt issuance costs and $13.2 million recorded as interest expense. Interest on the Exchange Senior Notes and IPG …

DebtDisclosureTextBlock · excerpt; the full note is in the filing

Share-Based Compensation Plans Share-based incentive awards are granted to employees under the 2021 Incentive Award Plan, or the 2021 Plan, that was approved by the shareholders. The 2021 Plan is administered by the Compensation Committee of the Board of Directors, or the Compensation Committee. Awards include stock options, restricted stock and other performance-based stock awards. The maximum number of shares of common stock that can be granted under the 2021 Plan is 14.7 million shares plus any shares awarded under the 2021 Plan and any prior plan that have been forfeited or have expired. All awards reduce the number of shares available for grant on a one-for-one basis. The terms of each award and the exercise date are determined by the Compensation Committee. The 2021 Plan does not permit the holder of an award to elect cash settlement under any circumstances. At December 31, 2025, there were 1,086,325 shares available for grant under the 2021 Plan and the plan was effectively frozen for new grants upon approval of the 2026 Incentive Award Plan. On January 28, 2026, our shareholders approved the 2026 Incentive Award Plan (the Plan). The Plan is administered by a committee, which may be the Board of Directors (the Board) or a committee appointed by the Board such as our Compensation Committee (collectively, the Committee). Until otherwise determined by the Board, the Committee consists solely of two or more Board members who are Non-Employee Directors (as defined in Rule 1 …

DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock · excerpt; the full note is in the filing

Fair Value Financial assets and liabilities measured at fair value on a recurring basis: December 31, 2025 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents $ 6,881.1 $ 6,881.1 Marketable equity securities 0.9 0.9 Cross currency swaps - net investment hedge $ 7.1 7.1 Liabilities: Contingent purchase price obligations $ 214.9 214.9 December 31, 2024 Assets: Cash and cash equivalents $ 4,339.4 $ 4,339.4 Marketable equity securities 0.9 0.9 Cross currency swaps - net investment hedge 9.3 $ 9.3 Liabilities: Foreign currency derivatives $ 0.1 $ 0.1 Contingent purchase price obligations $ 220.1 220.1 Changes in contingent purchase price obligations: December 31, 2025 2024 January 1 $ 220.1 $ 229.5 Acquisitions 37.7 39.2 Revaluation and interest 5.2 (5.1) Payments (48.4) (42.4) Foreign currency translation 0.3 (1.1) December 31 $ 214.9 $ 220.1 Carrying amount and fair value of our financial assets and liabilities: December 31, 2025 2024 Carrying Amount Fair Value Carrying Amount Fair Value Assets: Cash and cash equivalents $ 6,881.1 $ 6,881.1 $ 4,339.4 $ 4,339.4 Marketable equity securities 0.9 0.9 0.9 0.9 Non-marketable equity securities 62.1 62.1 36.8 36.8 Cross currency swaps - net investment hedge 7.1 7.1 9.3 9.3 Liabilities: Short-term debt $ 62.0 $ 62.0 $ 21.3 $ 21.3 Foreign currency derivatives 0.1 0.1 Contingent purchase price obligations 214.9 214.9 220.1 220.1 Long-Term Debt, including current portion 9,054.5 8,818.9 6,035.3 5,664.9 The estimated fair values …

FairValueDisclosuresTextBlock · excerpt; the full note is in the filing

Goodwill and Intangible Assets Change in goodwill: December 31, 2025 2024 January 1 $ 10,677.4 $ 10,082.3 Acquisitions 7,698.6 761.2 Noncontrolling interests in acquired businesses 2.7 22.8 Contingent purchase price obligations of acquired businesses 2.6 Planned dispositions (see Note 14) (66.2) (6.0) Foreign currency translation 326.3 (182.9) December 31 $ 18,641.4 $ 10,677.4 The increase in goodwill in 2025 and 2024 is primarily attributable to the acquisitions of IPG and Flywheel Digital, respectively. There were no goodwill impairment losses recorded in 2025 or 2024, and there are no accumulated goodwill impairment losses. Intangible assets: December 31, 2025 2024 Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value Trade Names 929.9 (76.5) 853.4 153.7 (73.1) 80.6 Customer Relationships 4,389.5 (504.1) 3,885.4 813.7 (484.0) 329.7 Technology and other 409.2 (79.6) 329.6 128.7 (48.9) 79.8 Acquired intangible assets and internally developed strategic platform assets $ 5,728.6 $ (660.2) $ 5,068.4 $ 1,096.1 $ (606.0) $ 490.1 Other purchased and internally developed software 275.6 (243.0) 32.6 258.3 (226.3) 32.0 Intangible Assets $ 6,004.2 $ (903.2) $ 5,101.0 $ 1,354.4 $ (832.3) $ 522.1 The increase in the gross carrying value of acquired intangible assets for 2025 and 2024 was primarily related to the $4,640.3 million and $182.6 million of combined customer relationships, intellectual property and tra …

GoodwillAndIntangibleAssetsDisclosureTextBlock · excerpt; the full note is in the filing

Income Taxes Income before income taxes: Year Ended December 31, 2025 2024 2023 Domestic $ 319.0 $ 940.0 $ 696.0 International (40.8) 1,187.6 1,296.9 Income Before Income Taxes $ 278.2 $ 2,127.6 $ 1,992.9 Income tax expense (benefit): Year Ended December 31, 2025 2024 2023 Current: U.S. federal $ 103.0 $ 183.8 $ 154.2 U.S. state and local 26.9 46.6 34.8 International 171.5 309.9 330.8 Total Current Income Tax Expense 301.4 540.3 519.8 Deferred: U.S. federal (19.0) 17.5 10.9 U.S. state and local (10.9) 1.3 1.3 International (29.3) 1.4 (7.1) Total Deferred Tax Expense (Benefit) (59.2) 20.2 5.1 Total Income Tax Expense $ 242.2 $ 560.5 $ 524.9 Total Income Tax Expense: U.S. federal 84.0 201.3 165.1 U.S. state and local 16.0 47.9 36.1 International 142.2 311.3 323.7 Total Income Tax Expense $ 242.2 $ 560.5 $ 524.9 On January 1, 2025, we prospectively adopted ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (ASU 2023-09), that requires, greater disaggregation of information in the rate reconciliation. Reconciliation from the statutory U.S. federal income tax rate to effective tax rate for 2025: Year Ended December 31, 2025 Statutory U.S. federal income tax rate $ 58.4 21.0 % Domestic - Federal Tax credits (6.5) (2.3) % Nontaxable and nondeductible items Nondeductible transaction costs 49.0 17.6 % Nontaxable investment income (42.1) (15.1) % Other 23.8 8.6 % Cross-border taxes, net of foreign tax credit (0.2) (0.1) % U.S. state and local income taxes, ne …

IncomeTaxDisclosureTextBlock · excerpt; the full note is in the filing

Pension and Other Postemployment Benefits Defined Contribution Plans Our domestic and international subsidiaries provide retirement benefits for their employees primarily through defined contribution profit sharing and savings plans. Contributions to the plans vary by subsidiary and have generally been in amounts up to the maximum percentage of total eligible compensation of participating employees that is deductible for income tax purposes. Contribution expense was $110.4 million, $87.9 million and $127.9 million in 2025, 2024 and 2023, respectively. Defined Benefit Pension Plans Two of our U.S. businesses and several of our non-U.S. businesses sponsor noncontributory defined benefit pension plans. These plans provide benefits to employees based on formulas recognizing length of service and earnings. The U.S. plans are subject to ERISA and cover approximately 750 participants. These plans are closed to new participants and do not accrue future benefit credits. The non-U.S. plans, which include statutory plans, are not subject to ERISA and cover approximately 17,000 participants. In addition, we acquired US and international plans from IPG, the largest international plan being in the U.K. In 2023, the IPG U.K. pension plan entered into an annuity purchase contract that matches the plans future projected benefit obligations to covered participants. The annuity contract has the option to complete a buy-out, which would transfer all liabilities of the plan to the insurer. There …

PensionAndOtherPostretirementBenefitsDisclosureTextBlock · excerpt; the full note is in the filing

Revenue Nature of our services We provide data-inspired, creative marketing and sales solutions through various client-centric networks that are organized to meet specific client objectives. Our networks, connected capabilities and agencies provide a comprehensive range of services in the following fundamental disciplines: Media & Advertising, Precision Marketing, Public Relations, Healthcare, Branding & Retail Commerce, Experiential, and Execution & Support. Media & Advertising includes creative services across digital and traditional media, strategic media planning and buying, performance media, data analytics services, and Omnicom Production. Precision Marketing includes digital and direct marketing, digital transformation consulting, e-commerce operations, media execution, market intelligence and data and analytics. Public Relations services include corporate communications, crisis management, public affairs and media and media relations services. Healthcare includes corporate communications and advertising and media services to global healthcare and pharmaceutical companies. Branding & Retail Commerce services include brand and product consulting, strategy and research and retail marketing. Experiential marketing services include live and digital events and experience design and execution. Execution & Support includes field marketing, sales support, digital and physical merchandising, point-of-sale and product placement, as well as other specializ …

RevenueFromContractWithCustomerTextBlock · excerpt; the full note is in the filing

Segment Reporting Our branded agency networks operate in the advertising, marketing and corporate communications services industry, and are organized into agency networks, virtual client networks, regional reporting units and operating groups or connected capabilities. Our networks, virtual client networks and agencies increasingly share clients and provide clients with integrated services. The main economic components of each agency are employee compensation and related costs, direct service costs and occupancy and other costs which include rent and occupancy costs, technology costs and overhead expenses. Therefore, given these similarities, we aggregate our four operating segments, which are our agency networks, into one reporting segment. The chief operating decision maker, or CODM, reviews segment operating income for each network and allocates resources accordingly. Beginning in December of 2025, we integrated the newly acquired IPG businesses into our existing four networks and the effect of one month of IPGs operations were not significant to the networks operations. The CODM includes Omnicoms chief executive officer, chief financial officer and chief operating officer. Segment operating results include allocations of costs, including information technology, and other shared services costs, that are allocated using metrics designed to correlate the allocation with consumption. Segment revenue, segment operating expenses and segment operating income of our operating seg …

SegmentReportingDisclosureTextBlock · excerpt; the full note is in the filing

Significant Accounting Policies Revenue Recognition . Revenue is recognized when a customer obtains control and receives the benefit of the promised goods or services (the performance obligation) in an amount that reflects the consideration we expect to receive in exchange for those goods or services (the transaction price). We measure revenue by estimating the transaction price based on the consideration specified in the client arrangement. Revenue is recognized as the performance obligations are satisfied. Our revenue is primarily derived from the planning and execution of advertising, marketing, and communications services in the following fundamental disciplines: Media & Advertising, Precision Marketing, Public Relations, Healthcare, Branding & Retail Commerce, Experiential, and Execution & Support. Our client contracts are primarily fees for service on a rate per hour or per project basis. Revenue is recorded net of sales, use and value added taxes. Performance Obligations. In substantially all our disciplines, the performance obligation is to provide advisory and consulting services at an agreed-upon level of effort to accomplish the specified engagement. Our client contracts are comprised of diverse arrangements involving fees based on any one or a combination of the following: an agreed fee or rate per hour for the level of effort expended by our employees; commissions based on the clients spending for media purchased from third parties; qualitative or qua …

SignificantAccountingPoliciesTextBlock · excerpt; the full note is in the filing

Accumulated Other Comprehensive Income (Loss) Changes in AOCI, net of income taxes: Cash Flow Hedge Pension and Other Postemployment Benefits Foreign Currency Translation Total January 1, 2024 $ (8.1) $ (42.7) $ (1,286.8) $ (1,337.6) Other comprehensive income (loss) before reclassifications 13.1 (158.6) (145.5) Reclassification from accumulated other comprehensive income (loss) 3.1 4.1 7.2 December 31, 2024 (5.0) (25.5) (1,445.4) (1,475.9) Other comprehensive income (loss) before reclassifications (18.2) 220.7 202.5 Reclassification from accumulated other comprehensive income (loss) 3.7 3.5 0.4 7.6 December 31, 2025 $ (1.3) $ (40.2) $ (1,224.3) $ (1,265.8) …

StockholdersEquityNoteDisclosureTextBlock · excerpt; the full note is in the filing

Subsequent Events In February 2026, the Board authorized the repurchase of up to $5.0 billion of our common stock. Pursuant to this authorization, we also entered into an accelerated share repurchase program to repurchase approximately $2.5 billion of our common stock.

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Business Combinations On November 26, 2025, we completed the Merger (see Note 1 to the consolidated financial statements). The acquisition combines complementary capabilities and service offerings and is expected to expand client opportunities and support long-term growth. Purchase Consideration Pursuant to the Merger Agreement, the 361,498,876 shares of IPG common stock (the IPG common stock) (par value $0.10 per share) that were issued and outstanding immediately prior to the Merger were converted into 124,352,188 shares of Omnicom common stock (par value $0.15 per share) and cash in lieu of fractional shares, based on an exchange ratio (the Exchange Ratio) of 0.344 shares of Omnicom common stock for each share of IPG common stock. Following the closing of the Merger, legacy Omnicom shareholders owned approximately 60.6% of the combined company, and legacy IPG shareholders owned approximately 39.4%, on a fully diluted basis. The total consideration paid at closing was $8,893.5 million, consisting primarily of equity consideration of $8,891.2 million, excluding debt assumed in connection with Omnicom's offer to exchange all outstanding notes of certain series issued by IPG. The following table summarizes the purchase consideration: Fair value of shares issued to IPG shareholders 1 $8,891.2 Cash paid for fractional shares $0.3 Fair value of equity awards 2 $2.0 Total Consideration $8,893.5 1) The fair value of shares issued reflects the number of IPG shares outstanding at the …

BusinessCombinationDisclosureTextBlock · excerpt; the full note is in the filing

Commitments and Contingent Liabilities In the ordinary course of business, we are involved in various legal proceedings. We do not presently expect that such proceedings will have a material adverse effect on our results of operations or financial position.

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"Debt Credit Facility On November 26, 2025, the Company entered into a Fourth Amended and Restated Five Year Credit Agreement (the Credit Agreement Amendment), which amended and restated the Companys Third Amended and Restated Five Year Credit Agreement, dated as of June 2, 2023. The Credit Agreement Amendment, among other things, (i) increased the unsecured multi-currency revolving credit facility (the Credit Facility) amount from $2.5 billion to $3.5 billion, (ii) reduced the facility fee and applicable margin, (iii) extended the termination date (with respect to the available commitments of the extending lenders) from June 2, 2028 to November 26, 2030 and (iv) designated Omnicom as sole borrower under the Credit Facility. We can issue up to $3.0 billion of U.S. Dollar denominated commercial paper under a U.S. commercial paper program, and issue up to the equivalent of $500 million in British Pounds, Euro, or U.S. Dollars under a Euro commercial paper program. In addition, certain of our subsidiaries have uncommitted credit lines that are guaranteed by Omnicom, aggregating $919.1 million. All of these facilities provide additional liquidity sources for operating capital and general corporate purposes. During the three months ended June 30, 2026, we issued commercial paper, and the average and maximum amounts outstanding during the quarter were $34.0 million and $230.0 million, respectively. During the six months ended June 30, 2026, we issued commercial paper, and the avera …

DebtDisclosureTextBlock · excerpt; the full note is in the filing

Fair Value Financial assets and liabilities measured at fair value on a recurring basis: June 30, 2026 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents $ 3,336.2 $ 3,336.2 Marketable equity securities $ 0.8 $ 0.8 Cross currency swaps - net investment hedge $ 11.9 $ 11.9 Liabilities: Contingent purchase price obligations $ 244.8 $ 244.8 December 31, 2025 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents $ 6,881.1 $ 6,881.1 Marketable equity securities $ 0.9 $ 0.9 Cross currency swaps - net investment hedge $ 7.1 $ 7.1 Liabilities: Contingent purchase price obligations $ 214.9 214.9 Changes in contingent purchase price obligations: Six Months Ended June 30, 2026 2025 January 1 $ 214.9 $ 220.1 Acquisitions 24.8 5.4 Revaluation and interest 8.2 7.3 Payments (3.3) (41.5) Foreign currency translation 0.2 0.8 June 30 $ 244.8 $ 192.1 Carrying amount and fair value of our financial assets and liabilities: June 30, 2026 December 31, 2025 Carrying Amount Fair Value Carrying Amount Fair Value Assets: Cash and cash equivalents $ 3,336.2 $ 3,336.2 $ 6,881.1 $ 6,881.1 Marketable equity securities 0.8 0.8 0.9 0.9 Non-marketable equity securities 62.1 62.1 Cross currency swaps - net investment hedge 11.9 11.9 7.1 7.1 Liabilities: Short-term debt $ 48.8 $ 48.8 $ 62.0 $ 62.0 Foreign currency derivatives 0.2 0.2 Contingent purchase price obligations 244.8 244.8 214.9 214.9 Long-Term Debt 9,953.2 9,624.7 9,054.5 8,818.9 The estimated fair value of the foreign currency …

FairValueDisclosuresTextBlock · excerpt; the full note is in the filing

Goodwill and Intangible Assets Change in goodwill: Six Months Ended June 30, 2026 2025 January 1 $ 18,641.4 $ 10,677.4 Acquisitions* 155.1 2.4 Noncontrolling interests in acquired businesses 13.5 2.6 Contingent purchase price obligations of acquired businesses 13.5 2.5 Dispositions (21.6) (20.9) Foreign currency translation (61.2) 337.8 June 30 $ 18,740.7 $ 11,001.8 *The increase in goodwill in the six months ended June 30, 2026 is primarily attributable to adjustments to the preliminary purchase price accounting for the IPG acquisition in November 2025 (see Note 5 to the consolidated financial statements). There were no goodwill impairment charges recorded in the six months ended June 30, 2026 and 2025, and there are no accumulated goodwill impairment charges. We completed our annual goodwill impairment test as of May 1, 2026. The market assumptions used in our assessment reflected the current economic environment (see Note 1 to the consolidated financial statements). Based on the results of our impairment test, we concluded that our goodwill was not impaired at May 1, 2026. Intangible assets: June 30, 2026 December 31, 2025 Gross Carrying Value Accumulated Amortization Net Carrying Value Gross Carrying Value Accumulated Amortization Net Carrying Value Trade Names $ 922.5 $ (115.2) $ 807.3 $ 929.9 $ (76.5) $ 853.4 Customer Relationships 4,366.8 (643.2) 3,723.6 4,389.5 (504.1) 3,885.4 Technology and Other 357.6 (112.2) 245.4 409.2 (79.6) 329.6 Acquired intangible assets and i …

GoodwillAndIntangibleAssetsDisclosureTextBlock · excerpt; the full note is in the filing

"Income Taxes Our effective tax rate for the six months ended June 30, 2026 was 27.0% compared to 29.4% for the six months ended June 30, 2025. The decrease was primarily due to the non-deductibility of certain integration and acquisition related costs in connection with the Merger that negatively impacted the effective tax rate in 2025. The effective tax rates for 2026 and 2025 reflect the impact of the lower tax benefit associated with severance and repositioning charges and IPG acquisition related costs. Numerous foreign jurisdictions have enacted legislation to adopt a minimum effective tax rate described in the Global Anti-Base Erosion, or Pillar Two, model rules issued by the Organization for Economic Co-operation and Development (""OECD""). Under such rules, a minimum effective tax rate of 15% applies to multinational companies with consolidated revenue above 750 million. Under the Pillar Two rules, a company is required to determine a combined effective tax rate for all entities located in a jurisdiction. If the jurisdictional effective tax rate determined under the Pillar Two rules is less than 15%, a top-up tax will be due to bring the jurisdictional effective tax rate up to 15%. We are continuing to monitor Pillar Two legislative developments and the effects of Pillar Two on our business. On January 5, 2026, the OECD released comprehensive administrative guidance on the side-by-side system to streamline Pillar Twos global minimum tax rules, which would exclude U.S. …

IncomeTaxDisclosureTextBlock · excerpt; the full note is in the filing

Pension and Other Postemployment Benefits Pension and other postemployment benefits net periodic benefit expense: Defined Benefit Pension Plans Postemployment Arrangements Six Months Ended June 30, Six Months Ended June 30, 2026 2025 2026 2025 Service cost $ 6.1 $ 3.1 $ 1.0 $ 1.1 Interest cost 12.5 4.1 2.5 2.8 Expected return on plan assets (8.1) (0.4) Amortization of prior service cost 2.1 1.6 1.5 1.8 Amortization of actuarial losses (1.1) 0.5 Total net periodic benefit expense $ 11.5 $ 8.9 $ 5.0 $ 5.7 In the six months ended June 30, 2026 and 2025, we contributed $0.6 million and $0.2 million, respectively, to the defined benefit pension plans. …

PensionAndOtherPostretirementBenefitsDisclosureTextBlock · excerpt; the full note is in the filing

Revenue Nature of our services We provide data-driven, creative marketing and sales solutions through client-centric networks organized to meet specific client objectives. On a global, pan-regional, and local basis, our agencies provide a comprehensive range of services across our fundamental disciplines. Beginning in 2026, we realigned our disciplines as follows and as described below: Integrated Media, Advertising, Health, Public Relations, and Experiential & Other. The classification of certain services and prior period amounts have been reclassified to conform to the current period presentation. Integrated Media includes strategic media planning and buying, performance media and audience-based solutions, as well as digital commerce and data and identity solutions. It also includes proprietary data, analytics, and precision marketing capabilities and automated content delivery solutions. Advertising includes creative, brand development, and integrated advertising services across digital and traditional channels, supporting clients' brand strategy and communications needs. Health includes specialized medical communications, market access strategy and other services to global health and pharmaceutical companies. Public Relations services include corporate communications, crisis management, public affairs, and media relations services. Experiential & Other includes experiential design and execution, live and digital events, and entertainment and sports marketing, as w …

RevenueFromContractWithCustomerTextBlock · excerpt; the full note is in the filing

Segment Reporting Our branded agency networks operate in the advertising, marketing and corporate communications services industry, and are organized into agency networks, virtual client networks, regional reporting units and operating groups or connected capabilities. Our networks, virtual client networks and agencies increasingly share clients and provide clients with integrated services. The main economic components of each agency are employee compensation and related costs, direct service costs and occupancy and other costs which include rent and occupancy costs, technology costs and overhead expenses. Therefore, given these similarities, we aggregate our four operating segments, which are our global agency networks, into one reporting segment. The Chief Operating Decision Maker, or CODM, reviews segment operating income for each network and allocates resources accordingly. Beginning in December of 2025, we integrated the newly acquired IPG businesses into our existing four networks. The CODM includes Omnicoms chief executive officer, chief financial officer and chief operating officer. Segment operating results include allocations of costs, including information technology, and other shared services costs, that are allocated using metrics designed to correlate the allocation with consumption. Segment revenue, segment operating expenses and segment operating income of our operating segments: Three Months Ended June 30, Six Months Ended June 30, 2026 2025 2026 2025 Revenue …

SegmentReportingDisclosureTextBlock · excerpt; the full note is in the filing

Accumulated Other Comprehensive Income (Loss) Changes in accumulated other comprehensive income (loss), net of income taxes: Cash Flow Hedge Defined Benefit Pension Plans and Postemployment Arrangements Foreign Currency Translation Total Six Months Ended June 30, 2026 January 1 $ (1.3) $ (40.2) $ (1,224.3) $ (1,265.8) Other comprehensive income (loss) before reclassifications (32.8) (32.8) Reclassification from accumulated other comprehensive income (loss) 0.9 0.1 1.0 June 30 $ (0.4) $ (40.1) $ (1,257.1) $ (1,297.6) Six Months Ended June 30, 2025 January 1 $ (5.0) $ (25.5) $ (1,445.4) $ (1,475.9) Other comprehensive income (loss) before reclassifications 202.2 202.2 Reclassification from accumulated other comprehensive income (loss) 1.9 0.9 2.8 June 30 $ (3.1) $ (24.6) $ (1,243.2) $ (1,270.9) …

StockholdersEquityNoteDisclosureTextBlock · excerpt; the full note is in the filing

Subsequent Events We have evaluated events subsequent to the balance sheet date and determined that there have not been any events that have occurred that would require additional adjustments to, or disclosures in, these unaudited consolidated financial statements.

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