Marsh & Mclennan Companies, Inc,
Fiscal Year 2025 Q3.

Consolidated Operating Expenses Consolidated operating expenses increased $592 million, or 13%, to $5.2 billion for the three months ended September 30, 2025, compared to $4.6 billion for the three months ended September 30, 2024. Expenses also reflect an increase of 7% from acquisitions and 1% from the impact of foreign currency translation. Consolidated operating expenses increased $1.7 billion, or 12%, to $15.4 billion for the nine months ended September 30, 2025, compared to $13.7 billion for the nine months ended September 30, 2024. Expenses also reflect an 8% increase from acquisitions. Consolidated operating expenses for the three and nine months ended September 30, 2025 increased due to acquisitions, primarily in Risk and Insurance Services, resulting in higher compensation and benefits and amortization of identified intangibles. In the third quarter of 2025, the Company launched a three-year program, Thrive, which focuses on our brand strategy, delivering greater value to clients, accelerating growth and improving efficiency. The Company also announced the formation of Business Client Services ("BCS"), to accelerate innovation and centralize investments in operational excellence, data, AI and other analytics. BCS brings together operations and technology teams across the Company to improve client service through enhancing our technology and effective deployment of resources.

The Company continues to refine its detailed plans for the Program which may change the timing, expected costs, and related savings. 47 Risk and Insurance Services In the Risk and Insurance Services segment, the Company's subsidiaries and other affiliated entities act as brokers, agents or consultants for insureds, insurance underwriters and other brokers in the areas of risk management, insurance broking, insurance program management, risk consulting, analytical modeling and alternative risk financing services, primarily under the brand of Marsh, and engage in specialized reinsurance broking expertise, strategic advisory services and analytics solutions, primarily under the brand of Guy Carpenter.

Income and Other Taxes The Company's effective tax rate for the three months ended September 30, 2025 was 25.1%, compared with 27.3% for the corresponding quarter of 2024. The effective tax rates for the nine months ended September 30, 2025 and 2024 were 24.2% and 25.8%, respectively. The tax rate in each period reflects the impact of discrete tax items such as excess tax benefits related to share-based compensation, enacted tax legislation, changes in uncertain tax positions, deferred tax adjustments, non-taxable adjustments related to contingent consideration for acquisitions, and valuation allowances for certain tax credits and attributes. The excess tax benefit related to share-based payments is the most significant discrete item in both periods, reducing the effective tax rate by 0.3% for the three months ended September 30, 2025 and 2024, and by 1.0% and 1.3% for the nine months ended September 30, 2025 and 2024, respectively. The effective tax rate may vary significantly from period to period. The effective tax rate is sensitive to the geographic mix and repatriation of the Company's earnings, which may result in higher or lower effective tax rates. Therefore, a shift in the mix of profits among jurisdictions, or changes in the Company's repatriation strategy to access offshore cash, can affect the effective tax rate. In addition, losses in certain jurisdictions cannot be offset by earnings from other operations and may require valuation allowances that affect the rate in a particular period, depending on estimates of the value of associated deferred tax assets which can be realized. A valuation allowance was recorded to reduce deferred tax assets to the amount that the Company believes is more likely than not to be realized. The effective tax rate is also sensitive to changes in unrecognized tax benefits, including the impact of settled tax audits and expired statutes of limitations. The Company has established liabilities for uncertain tax positions in relation to potential assessments in the jurisdictions in which it operates. In 2024, the Company received closure notices and assessments from the U.K. tax authority in relation to its 2016-2020 examinations which disallowed certain interest expense deductions. The Company has appealed the assessments and resolving this matter through litigation or alternative dispute resolution may take several years. The Company believes the resolution of tax matters will not have a material effect on the consolidated financial position of the Company. However, an adverse resolution of tax matters could have a material impact on the Company's net income or cash flows and on its effective tax rate in a particular future period. It is reasonably possible that the total amount of unrecognized tax benefits could decrease up to approximately $69 million within the next twelve months due to settlement of audits and expiration of statutes of limitations. Changes in tax laws, rulings, policies, or related legal and regulatory interpretations occur frequently and may have significant favorable or adverse impacts on our effective tax rate. 51 On July 4, 2025, U.S tax legislation was signed into law (known as the "One Big Beautiful Bill Act" or "OBBBA") which makes permanent many of the tax provisions enacted in 2017 as part of the Tax Cuts and Jobs Act, that were set to expire at the end of 2025. In addition, the OBBBA makes changes to certain U.S. corporate tax provisions, but many are generally not effective until 2026. The enactment of the OBBBA does not have a material impact on the results from operations for the current year or future years. In 2021, the Organization for Economic Cooperation and Development ("OECD") released model rules for a 15% global minimum tax, known as Pillar Two. Pillar Two has now been enacted by most key non-U.S. jurisdictions where the Company operates, including the U.K. and Ireland. Parts of the minimum tax rules were applicable in 2024, with the remaining provisions becoming fully effective for 2025. This minimum tax is treated as a period cost and does not have a material impact on the Company's financial results from operations for the current period. The Company continues to monitor legislative developments, as well as additional guidance from countries that have enacted Pillar Two legislation, and will ensure it complies with any changes. As a U.S. domiciled parent holding company, the Company is the issuer of essentially all the Company's external indebtedness, and incurs the related interest expense in the U.S. The Company's interest expense deductions are not currently limited. However, the Company may not be able to fully deduct intercompany interest on loans used to finance the Company's foreign operations. Further, most senior executive and oversight functions are conducted in the U.S. and the associated costs are incurred primarily in the U.S. Some of these expenses may not be deductible in the U.S., which may impact the effective tax rate. Changes to the U.S. tax law in recent years have allowed the Company to repatriate foreign earnings without incurring additional U.S. federal income tax costs as foreign income is generally already taxed in the U.S. However, permanent reinvestment continues to be a component of the Company's global capital strategy. The Company continues to evaluate its global investment and repatriation strategy in light of our capital requirements and potential costs of repatriation, which are generally limited to local country withholding taxes. 52

Dividends The Company paid dividends on its common stock shares of $1.3 billion ($2.53 per share) for the nine months ended September 30, 2025, as compared with $1.1 billion ($2.235 per share) for the first nine months of 2024. In January and March of 2025, the Board of Directors of the Company declared quarterly dividends of $0.815 per share on outstanding common stock, which were paid in February and May 2025, respectively. In July 2025, the Board of Directors of the Company declared a quarterly dividend of $0.900 per share on outstanding common stock, which was paid in August 2025. In September 2025, the Board of Directors of the Company declared a quarterly dividend of $0.900 per share on outstanding common stock, payable in November 2025.

The results of operations for the Risk and Insurance Services segment are as follows: Three Months Ended June 30,Six Months Ended June 30, (In millions, except percentages)2025202420252024

Consolidated Results of Operations Three Months Ended June 30,Six Months Ended June 30, (In millions, except per share data)2025202420252024 Revenue$6,974 $6,221 $14,035 $12,694

Debt The Company has a $3.5 billion short-term debt financing program through the issuance of commercial paper. The proceeds from the issuance of commercial paper are used for general corporate purposes. The Company had $150 million of commercial paper outstanding at June 30, 2025, at an average effective interest rate of 4.60%. The Company did not have any commercial paper outstanding at December 31, 2024.

Average number of shares outstanding: - Basic491 492 492 492 - Diluted494 496 495 496 Shares outstanding at September 30,490 491 490 491 Consolidated operating income increased $62 million, or 6% to $1.2 billion for the three months ended September 30, 2025, compared to $1.1 billion for the corresponding quarter in the prior year, reflecting an 11% increase in revenue and a 13% increase in expenses. Revenue growth was driven by increases in the Risk and Insurance Services and Consulting segments of 13% and 9%, respectively. Consolidated operating income increased $329 million, or 7% to $5.0 billion for the nine months ended September 30, 2025, compared to $4.7 billion for the corresponding period in the prior year, reflecting an 11% increase in revenue and a 12% increase in expenses. Revenue growth was driven by increases in the Risk and Insurance Services and Consulting segments of 13% and 7%, respectively. The Company's revenue and expenses for the three and nine months ended September 30, 2025 include the results of operations of McGriff Insurance Services, LLC ("McGriff'") in the Risk and Insurance Services segment. Diluted earnings per share for the three months ended September 30, 2025 was $1.51, consistent with the prior year, reflecting an increase in operating income, offset by higher interest expense. For the nine months ended September 30, 2025, diluted earnings per share increased to $6.75 from $6.59, or 2% from the prior year, reflecting an increase in operating income, partially offset by higher interest expense. 42

Total Consulting2,465 2,262 9 %2,365 2,255 5 % Corporate Eliminations(21)(18)(21)(18) Total Revenue$6,351 $5,697 11 %$5,895 $5,685 4 % The following table provides more detailed revenue information for certain of the components presented in the previous table: Three Months Ended September 30,

Non-GAAP measures The Company reports its financial results in accordance with accounting principles generally accepted in the United States (U.S.), referred to as in accordance with "GAAP" or "reported" results. The Company also refers to and presents a non-GAAP financial measure in non-GAAP revenue, within the meaning of Regulation G and Item 10(e) of Regulation S-K in accordance with the Securities Exchange Act of 1934. The Company has included a reconciliation of this non-GAAP financial measure to the most directly comparable financial measure calculated in accordance with GAAP as part of the consolidated revenue and expense discussion. Percentage changes, referred to as non-GAAP underlying revenue, are calculated by dividing the period over period change in non-GAAP revenue by the prior period non-GAAP revenue. The Company believes this non-GAAP financial measure provides useful supplemental information that enables investors to better compare the Company's performance across periods. Management also uses this measure internally to assess the operating performance of its businesses and to decide how to allocate resources. However, investors should not consider this non-GAAP measure in isolation from, or as a substitute for, the financial information that the Company reports in accordance with GAAP. The Company's non-GAAP measure 40

(In millions, except percentages) GAAP Revenue% Change GAAP Revenue*Non-GAAP RevenueNon-GAAP Underlying Revenue* 2025202420252024 Marsh: EMEA$2,878 $2,684 7 %$2,858 $2,680 7 %

Total Mercer$4,573 $4,256 7 %$4,367 $4,226 3 % (*) Rounded to whole percentages. 44 Revenue - Reconciliation of Non-GAAP Measures The following tables provide the reconciliation of GAAP revenue to Non-GAAP revenue for the three and nine months ended September 30, 2025 and 2024:

The following table provides more detailed revenue information for certain of the components presented in the previous table: 20252024 Three Months Ended September 30,

Note: Amounts in the tables above are rounded to whole numbers. 45 20252024 Nine Months Ended September 30, (In millions) GAAP RevenueCurrency ImpactAcquisitions/Dispositions/Other ImpactNon-GAAP RevenueGAAP RevenueAcquisitions/Dispositions/Other ImpactNon-GAAP Revenue

Financial Highlights •Consolidated revenue for the three months ended September 30, 2025 was $6.4 billion, an increase of 11%, or 4% on an underlying basis. For the nine months ended September 30, 2025, consolidated revenue was $20.4 billion, an increase of 11%, or 4% on an underlying basis. •Consolidated operating income increased $62 million, or 6% to $1.2 billion for the three months ended September 30, 2025, compared to the corresponding quarter in the prior year. Net income attributable to the Company was $747 million. Earnings per share on a diluted basis was $1.51, consistent with the corresponding quarter in the prior year. For the nine months ended September 30, 2025, consolidated operating income increased $329 million, or 7% to $5.0 billion, compared to the corresponding period in the prior year. Net income attributable to the Company was $3.3 billion. Earnings per share on a diluted basis increased to $6.75 from $6.59, or 2%, compared to the corresponding period in the prior year. •Risk and Insurance Services revenue for the three months ended September 30, 2025 was $3.9 billion, an increase of 13%, or 3% on an underlying basis. Operating income was $750 million, compared with $733 million for the corresponding quarter in the prior year. For the nine months ended September 30, 2025, Risk and Insurance Services revenue was $13.3 billion, an increase of 13%, or 4% on an underlying basis. Operating income was $3.8 billion, compared with $3.6 billion for the corresponding period in the prior year. •Marsh's revenue for the three months ended September 30, 2025 was $3.4 billion, an increase of 16%, or 4% on an underlying basis. For the nine months ended September 30, 2025, Marsh's revenue was $10.7 billion, an increase of 16%, or 5% on an underlying basis. Guy Carpenter's revenue for the three months ended September 30, 2025 was $398 million, an increase of 5% on both a reported and an underlying basis. For the nine months ended September 30, 2025, Guy Carpenter's revenue was $2.3 billion, an increase of 6%, or 5% on an underlying basis. •Consulting revenue for the three months ended September 30, 2025 was $2.5 billion, an increase of 9%, or 5% on an underlying basis. Operating income was $501 million, compared with $462 million for the corresponding quarter in the prior year. For the nine months ended September 30, 2025, Consulting revenue was $7.2 billion, an increase of 7%, or 4% on an underlying basis. Operating income was $1.4 billion, compared with $1.3 billion for the corresponding period in the prior year. •Mercer's revenue for the three months ended September 30, 2025 was $1.6 billion, an increase of 9%, or 3% on an underlying basis. For the nine months ended September 30, 2025, Mercer's revenue was $4.6 billion, an increase of 7%, or 3% on an underlying basis. Oliver Wyman Group's revenue for the three months ended September 30, 2025 was $886 million, an increase of 9%, or 8% on an underlying basis. For the nine months ended September 30, 2025, Oliver Wyman Group's revenue was $2.6 billion, an increase of 6%, or 5% on an underlying basis. •In the third quarter of 2025, the Company launched a three-year program, Thrive (the "Program"), which focuses on our brand strategy, delivering greater value to clients, accelerating growth and improving efficiency.

Total Revenue$20,386 $(5)$(1,343)$19,038 $18,391 $(61)$18,330 The following table provides more detailed revenue information for certain of the components presented in the previous table:

Health (b) 1,757 5 (11)1,751 1,605 42 1,647 Career756 (3)(26)727 742 - 742 Total Mercer$4,573 $(5)$(201)$4,367 $4,256 $(30)$4,226 (a)Acquisitions, dispositions and other in 2025 includes the impact of McGriff. (b)Acquisitions, dispositions and other in 2024 includes a net gain of $21 million from the sale of the U.K. pension administration and U.S. health and benefits administration businesses, that comprised of a $66 million gain in Wealth, offset by a $45 million loss in Health.

Note: Amounts in the tables above are rounded to whole numbers. 46 Consolidated Revenue Consolidated revenue increased $654 million, or 11%, to $6.4 billion for the three months ended September 30, 2025, compared to $5.7 billion for the three months ended September 30, 2024. Consolidated revenue increased 4% on an underlying basis, 7% from acquisitions, and 1% from the impact of foreign currency translation. On an underlying basis, revenue increased 3% and 5% for the three months ended September 30, 2025, in the Risk and Insurance Services and Consulting segments, respectively. Consolidated revenue increased $2.0 billion, or 11%, to $20.4 billion for the nine months ended September 30, 2025, compared to $18.4 billion for the nine months ended September 30, 2024. Consolidated revenue increased 4% on an underlying basis and 7% from acquisitions. On an underlying basis, revenue increased 4% for the nine months ended September 30, 2025, in both the Risk and Insurance Services and Consulting segments.

7336252,1511,832 Operating expenses3,1572,7209,4888,153 Operating income$750$733$3,806$3,595 Operating income margin19.2%21.2%28.6%30.6% Revenue Revenue in the Risk and Insurance Services segment increased $454 million, or 13%, to $3.9 billion for the three months ended September 30, 2025, compared to $3.5 billion for the three months ended September 30, 2024. Revenue increased 3% on an underlying basis, 9% from acquisitions, and 1% from the impact of foreign currency translation. Interest earned on fiduciary funds decreased $29 million to $109 million for the three months ended September 30, 2025, compared to $138 million for the three months ended September 30, 2024. The decrease is due to lower average interest rates compared to the corresponding quarter in the prior year. Revenue in the Risk and Insurance Services segment increased $1.5 billion, or 13%, to $13.3 billion for the nine months ended September 30, 2025, compared to $11.7 billion for the nine months ended September 30, 2024. Revenue increased 4% on an underlying basis and 9% from acquisitions. Interest earned on fiduciary funds decreased $74 million to $311 million for the nine months ended September 30, 2025, compared to $385 million for the nine months ended September 30, 2024. The decrease is due to lower average interest rates compared to the corresponding period in the prior year. In Risk and Insurance Services, underlying revenue growth for the three and nine months ended September 30, 2025 was driven by growth in new business and renewal revenue at Marsh and Guy Carpenter, partially offset by declining insurance and reinsurance rates. Marsh's revenue increased $466 million, or 16%, to $3.4 billion for the three months ended September 30, 2025, compared to $2.9 billion for the three months ended September 30, 2024. This reflects an increase of 4% on an underlying basis, 11% from acquisitions, and 1% from the impact of foreign currency translation. U.S./Canada rose 3% on an underlying basis. Total International operations produced underlying revenue growth of 5%, reflecting growth of 6% in Asia Pacific, 5% in EMEA, and 3% in Latin America. Marsh's revenue increased $1.5 billion, or 16%, to $10.7 billion for the nine months ended September 30, 2025, compared to $9.2 billion for the nine months ended September 30, 2024. This reflects an increase of 5% on an underlying basis and 12% from acquisitions. U.S./Canada rose 4% on an underlying basis. Total International operations produced underlying revenue growth of 6%, reflecting growth of 7% in EMEA, and 5% in each of Latin America and Asia Pacific. Guy Carpenter's revenue increased $17 million, or 5%, to $398 million for the three months ended September 30, 2025, compared to $381 million for the three months ended September 30, 2024. This reflects an increase of 5% on an underlying basis and 1% from the impact of foreign currency translation. Guy Carpenter's revenue increased $120 million, or 6%, to $2.3 billion for the nine months ended September 30, 2025, compared to $2.2 billion for the nine months ended September 30, 2024. This reflects an increase of 5% on an underlying basis and 1% from acquisitions. 48

Operating Expenses Expenses in the Risk and Insurances Services segment increased $437 million, or 16%, to $3.2 billion for the three months ended September 30, 2025, compared to $2.7 billion for the three months ended September 30, 2024. Expenses also reflect an increase of 10% from acquisitions and 1% from the impact of foreign currency translation. Expenses in the Risk and Insurances Services segment increased $1.3 billion, or 16%, to $9.5 billion for the nine months ended September 30, 2025, compared to $8.2 billion for the nine months ended September 30, 2024. Expenses also reflect an increase of 11% from acquisitions. Expenses for the three and nine months ended September 30, 2025 increased due to acquisitions, resulting in higher compensation and benefits and amortization of identified intangibles. Expenses for the three and nine months ended September 30, 2025 included integration and retention related costs of $50 million and $164 million, respectively, related to the acquisition of McGriff. Expenses for the three and nine months ended September 30, 2025 also included higher intangible amortization cost of $39 million and $124 million, respectively, compared to the corresponding periods in the prior year, primarily related to the acquisition of McGriff.

The results of operations for the Consulting segment are as follows: Three Months Ended September 30,Nine Months Ended September 30, (In millions, except percentages)2025202420252024

Operating income$501$462$1,413$1,304 Operating income margin20.3%20.4%19.8%19.5% Revenue Consulting revenue increased $203 million, or 9%, to $2.5 billion for the three months ended September 30, 2025, compared to $2.3 billion for the three months ended September 30, 2024. This reflects an increase of 5% on an underlying basis, 3% from acquisitions, and 2% from the impact of foreign currency translation. Consulting revenue increased $458 million, or 7%, to $7.2 billion for the nine months ended September 30, 2025, compared to $6.7 billion for the nine months ended September 30, 2024. This reflects an increase of 4% on an underlying basis and 3% from acquisitions. In Consulting, underlying revenue growth for the three and nine months ended September 30, 2025 was driven by growth in both Mercer and Oliver Wyman Group. Mercer's revenue increased $127 million, or 9%, to $1.6 billion for the three months ended September 30, 2025, compared to $1.5 billion for the three months ended September 30, 2024. This reflects an increase of 3% on an underlying basis, 4% from acquisitions, and 1% from the impact of foreign currency translation. 49 On an underlying basis, revenue for Health and Wealth increased 6% and 3%, respectively, and remained flat in Career, as compared to the corresponding quarter in the prior year. Mercer's revenue increased $317 million, or 7%, to $4.6 billion for the nine months ended September 30, 2025, compared to $4.3 billion for the nine months ended September 30, 2024. This reflects an increase of 3% on an underlying basis and 4% from acquisitions. On an underlying basis, revenue for Health and Wealth increased 6% and 3%, respectively, and decreased 2% in Career, as compared to the corresponding period in the prior year. Underlying revenue growth at Mercer was driven by continued solid growth in Health and stable growth at Wealth. Revenue for the nine months ended September 30, 2025 was offset by a contraction in Career. Health reflected strong growth across all regions. Wealth growth was driven by investment management, primarily reflecting positive net flows and the impact of capital markets. Career reflected continued softness in project-related work in the U.S. and Canada, offset by growth in workforce products. Revenue for the nine months ended September 30, 2024 includes a net gain of $21 million from the sale of the Mercer U.K. pension administration and U.S. health and benefits administration businesses. Oliver Wyman Group's revenue increased $76 million, or 9%, to $886 million for the three months ended September 30, 2025, compared to $810 million for the three months ended September 30, 2024. This reflects an increase of 8% on an underlying basis and 2% from the impact of foreign currency translation. Oliver Wyman Group's revenue increased $141 million, or 6%, to $2.6 billion for the nine months ended September 30, 2025, compared to $2.4 billion for the nine months ended September 30, 2024. This reflects an increase of 5% on an underlying basis and 1% from the impact of foreign currency translation. The increase in underlying revenue growth at Oliver Wyman Group for the three months ended September 30, 2025 was driven by growth in each of the regions. Underlying revenue growth for the nine months ended September 30, 2025 was driven by growth in the Americas and the Middle East. The Consulting segment completed 4 acquisitions for the nine months ended September 30, 2025. Information regarding these acquisitions is included in Note 8, Acquisitions and Dispositions, in the notes to the consolidated financial statements.

Operating Expenses Expenses in the Consulting segment increased $164 million, or 9%, to $2.0 billion for the three months ended September 30, 2025, compared to $1.8 billion for the three months ended September 30, 2024. Expenses reflect a 2% increase from acquisitions and 1% from the impact of foreign currency translation. Expenses in the Consulting segment increased $349 million, or 6%, to $5.7 billion for the nine months ended September 30, 2025, compared to $5.4 billion for the nine months ended September 30, 2024. Expenses reflect a 3% increase from acquisitions. Expenses for the three and nine months ended September 30, 2025 increased due to compensation and benefits driven by higher base salaries and incentive compensation. Expenses also increased due to acquisitions. For the nine months ended September 30, 2024, expenses also reflected acquisition and disposition costs of $21 million, primarily related to exit costs for the disposition of the Mercer U.K. pension administration and U.S. health benefits administration businesses in 2024.

Corporate and Other Corporate expenses decreased $6 million, or 6%, to $81 million for the three months ended September 30, 2025, compared to $87 million for the three months ended September 30, 2024. Corporate expenses decreased $9 million, or 4%, to $215 million for the nine months ended September 30, 2025, compared to $224 million for the nine months ended September 30, 2024.

Interest Income Interest income for the three months ended September 30, 2025 was $10 million, compared to $12 million for the three months ended September 30, 2024. Interest income for the nine months ended September 30, 2025 was $34 million, compared to $61 million for the nine months ended September 30, 2024. Interest income decreased $2 million and $27 million for the three and nine months ended September 30, 2025, respectively, due to lower average interest rates compared to the corresponding periods in the prior year. 50

Interest Expense Interest expense for the three months ended September 30, 2025 was $237 million, compared to $154 million for the three months ended September 30, 2024. Interest expense for the nine months ended September 30, 2025 was $725 million, compared to $469 million for the nine months ended September 30, 2024. Interest expense increased $83 million and $256 million for the three and nine months ended September 30, 2025, respectively, due to debt raised to fund the McGriff acquisition.

Investment Income The caption "Investment income" in the consolidated statements of income comprises realized and unrealized gains and losses from investments. It includes, when applicable, other than temporary declines in the value of securities, mark-to-market increases or decreases in equity investments with readily determinable fair values and equity method gains or losses on the Company's investments in private equity funds. The Company's investments may include direct investments in insurance, consulting or other strategically linked companies and investments in private equity funds. The Company recorded net investment income of $15 million and $27 million for the three and nine months ended September 30, 2025, compared to net investment income of $1 million and $3 million, respectively, for the corresponding periods in the prior year. The increase in 2025 for both periods is primarily driven by higher mark-to-market gains from the Company's investments.

Operating Cash Flows The Company provided $3.1 billion of cash from operations for the nine months ended September 30, 2025, compared to $2.3 billion for the first nine months of 2024. These amounts reflect the net income of the Company during those periods, excluding gains or losses from investments, adjusted for non-cash charges and changes in working capital which relate primarily to the timing of payments of accrued liabilities, including incentive compensation, or receipts of receivables and pension plan contributions. The Company used cash of $138 million and $195 million related to its restructuring activities for the nine months ended September 30, 2025 and 2024, respectively.

Pension Related Items Contributions The Company's policy for funding its tax-qualified defined benefit plans is to contribute amounts at least sufficient to meet the funding requirements set forth in accordance with applicable law. For the three and nine months ended September 30, 2025, the Company contributed $9 million and $29 million, respectively, to its U.S. defined benefit pension plans and $12 million and $27 million to its non-U.S. defined benefit pension plans, respectively. For the three and nine months ended September 30, 2024, the Company contributed $8 million and $25 million to its U.S. defined benefit pension plans, respectively, and $8 million and $42 million to its non-U.S. defined benefit pension plans, respectively. In the U.S., contributions to the tax-qualified defined benefit plans are based on Employee Retirement Income Security Act ("ERISA") guidelines and the Company generally expects to maintain a funded status of 80% or more of the liability determined in accordance with the ERISA guidelines. For the three and nine months ended September 30, 2025, the Company made contributions of $9 million and $27 million, respectively, to its non-qualified plans. The Company also made $2 million of required contributions to its U.S. qualified plans for the nine months ended September 30, 2025. The Company expects to make approximately $8 million of additional contributions to it's U.S. non-qualified plans over the remainder of 2025. Outside the U.S., the Company has a large number of non-U.S. defined benefit pension plans, the largest of which are in the U.K., which comprise approximately 78% of non-U.S. plan assets at December 31, 2024. Contribution rates for non-U.S. plans are generally based on local funding practices and statutory requirements, which may differ significantly from measurements in accordance with U.S. GAAP. 53 In the U.K., the assumptions used to determine pension contributions are the result of legally-prescribed negotiations between the Company and the plans' trustee that typically occur every 3 years in conjunction with the actuarial valuation of the plans. Currently, this results in a lower funded status compared to U.S. GAAP and may result in contributions irrespective of the U.S. GAAP funded status. In 2021, the JLT Pension Scheme was merged into the MMC U.K. Pension Fund with a new segregated JLT section created (referred to as the "JLT section"). The Company is not required to make any deficit contributions to the JLT section in 2025. The funding level will be re-assessed during the fourth quarter of 2025 as part of the December 31, 2024 actuarial valuation to determine if contributions are required in 2026. For the MMC U.K. Pension Fund, excluding the JLT section, an agreement was reached with the trustee in the fourth quarter of 2022, based on the surplus funding position at December 31, 2021. In accordance with the agreement, no deficit funding is required at the earliest until 2026. The funding level will be re-assessed during the fourth quarter of 2025 as part of the December 31, 2024 actuarial valuation to determine if contributions are required in 2026. In December 2022, the Company renewed its agreement to support annual deficit contributions that may be required by the U.K. operating companies under certain circumstances, up to £450 million (or $603 million) over a seven year period. This is part of an agreement which gives the Company greater influence over asset allocation and overall investment decisions. The Company expects to fund an additional $16 million to its non-U.S. defined benefit plans over the remainder of 2025, mainly to plans outside of the U.K.

Financing Cash Flows Net cash used for financing activities was $2.6 billion for the nine months ended September 30, 2025, compared with $1.8 billion used for financing activities for the corresponding period in 2024.

Credit Facilities The Company has a $3.5 billion multi-currency unsecured five-year credit facility (the "Credit Facility") expiring October 2028. Borrowings under the Credit Facility bear interest at a rate per annum, equal, at the Company's option, either at (a) the Securities Overnight Financing Rate ("SOFR") benchmark rate for U.S. dollar borrowings, or (b) a currency specific benchmark rate, plus an applicable margin which varies with the Company's credit ratings. The Company is required to maintain certain coverage and leverage ratios for the Credit Facility, which are evaluated quarterly. The Credit Facility includes provisions for determining a benchmark replacement rate in the event existing benchmark rates are no longer available, or in certain other circumstances, in which an alternative rate may be required. At September 30, 2025 and December 31, 2024, the Company had no borrowings under this facility. The Company also maintains other credit and overdraft facilities with various financial institutions aggregating $122 million and $123 million at September 30, 2025 and December 31, 2024. There were no outstanding borrowings under these facilities at September 30, 2025 and December 31, 2024. The Company also has outstanding guarantees and letters of credit with various banks aggregating $158 million and $163 million at September 30, 2025 and December 31, 2024, respectively.

Share Repurchases For the nine months ended September 30, 2025, the Company repurchased 4.6 million shares of its common stock for $1 billion. At September 30, 2025, the Company remained authorized by the Board of Directors to repurchase up to approximately $1.3 billion in shares of its common stock. There is no time limit on the authorization. For the nine months ended September 30, 2024, the Company repurchased 4.3 million shares of its common stock for $900 million.

The following amounts are included in the consolidated statements of cash flows as operating and financing activities: For the Nine Months Ended September 30,

(In millions)20252024 Operating: Contingent consideration payments for prior year acquisitions$(27)$(90) Acquisition/disposition related net charges for adjustments4521

Adjustments and payments related to contingent consideration$18 $(69) Financing: Contingent consideration for prior year acquisitions$(11)$(73) Deferred consideration for prior year acquisitions (53)(18)

Payments of deferred and contingent consideration for acquisitions$(64)$(91) Receipt of contingent consideration for dispositions $- $1 55 For acquisitions completed during the first nine months of 2025 and in prior years, remaining estimated future contingent payments of $230 million and deferred consideration payments of $140 million, are recorded in accounts payable and accrued liabilities or other liabilities in the consolidated balance sheet at September 30, 2025.

Fiduciary Liabilities Since fiduciary assets are not available for corporate use, they are shown separately in the consolidated balance sheets as cash and cash equivalents held in a fiduciary capacity, with a corresponding amount in current liabilities. Financing cash flows reflect increases of $231 million and $916 million for the nine months ended September 30, 2025 and 2024, respectively, related to fiduciary liabilities.

Investing Cash Flows Net cash used for investing activities amounted to $322 million for the first nine months of 2025, compared with $1.2 billion used for investing activities for the corresponding period in 2024. The Company paid $224 million and $1.0 billion, net of cash, cash equivalents, and cash and cash equivalents held in a fiduciary capacity acquired, for acquisitions it made in the first nine months of 2025 and 2024, respectively. The outflow of funds in 2024 relates primarily to the acquisitions of Horton Group, Inc. and Fischer Brown Bottrell Insurance Inc., for $705 million. In the first quarter of 2025, the Company sold Marsh McLennan Agency's ("MMA") Technology Consulting and Administrative Solutions ("TCAS") business for approximately $25 million, and recorded a gain of $15 million, which is included in revenue in the consolidated statements of income. On January 1, 2024, the Company sold its Mercer U.K pension administration and U.S. health and benefits administration businesses for approximately $114 million, comprising of cash proceeds of $30 million and deferred consideration of $84 million. The Company received $76 million of deferred consideration during the third quarter of 2024. The Company's additions to fixed assets and capitalized software for the nine months ended September 30, 2025 and 2024, amounted to $186 million and $240 million, respectively, related primarily to software development costs, the refurbishing and modernizing of office facilities, and technology equipment purchases. Cash from the sale of long-term investments for the nine months ended September 30, 2025 is primarily due to the disposal of an investment in a unit trust fund. Cash used for long-term investments for the nine months ended September 30, 2025 is due to investments in private equity funds. At September 30, 2025, the Company has commitments for potential future investments of approximately $101 million in private equity funds that invest primarily in financial services companies. 56

Commitments and Obligations The following sets forth the Company's future contractual obligations by the type at September 30, 2025: Payment due by Period