Costco Wholesale Corp /new,
Fiscal Year 2025.

Interest Expense 202520242023 Interest expense$154 $169 $160 27 Interest expense is primarily related to Senior Notes and financing leases. The decrease was primarily due to repayment of the 2.750% Senior Notes in May 2024. For more information on our debt arrangements, refer to the consolidated financial statements included in Item 8 of this Report.

Provision for Income Taxes 202520242023 Provision for income taxes$2,719 $2,373 $2,195 Effective tax rate25.1 %24.4 %25.9 % The effective tax rate for 2025 was favorably impacted by discrete tax benefits of $100 related to stock compensation. The effective tax rate for 2024 was favorably impacted by discrete tax benefits of $94 related to the portion of the special cash dividend payable through our 401(k) plan, a net non-recurring tax benefit of $63 related to a transfer pricing settlement and certain true-ups of tax reserves, and $45 related to stock compensation. The Organization of Economic Cooperation and Development (OECD) introduced a framework to implement a global minimum corporate tax of 15% (referred to as Pillar 2) which was effective for fiscal 2025. The impacts of Pillar 2 did not have a material impact on our consolidated financial statements.

approximately $6,655. In April 2025, the Board of Directors increased our quarterly cash dividend from $1.16 to $1.30 per share. Share Repurchase Program On January 19, 2023, the Board of Directors authorized a share repurchase program in the amount of $4,000, which expires in January 2027. During 2025 and 2024, we repurchased 943,000 and 1,004,000 shares of common stock, at an average price per share of $957.66 and $695.29, totaling approximately $903 and $698. These amounts may differ from the accompanying consolidated statements of cash flows due to changes in unsettled repurchases at the end of each fiscal year. Purchases are made from time to time, as conditions warrant, in the open market or in block purchases, pursuant to plans under SEC Rule 10b5-1. Repurchased shares are retired, in accordance with the Washington Business Corporation Act. The remaining amount available to be purchased under our approved plan was $1,962 at the end of 2025.

Selling, General and Administrative Expenses 202420232022 SG&A expenses$22,810$21,590$19,779 SG&A expenses as a percentage of net sales9.14 %9.08 %8.88 % SG&A expenses as a percentage of net sales increased six basis points compared to 2023. SG&A expenses as a percentage of net sales excluding the impact of gasoline price deflation was 9.10%, an increase of two basis points. The comparison to last year was negatively impacted by two basis points in warehouse operations and other businesses, driven by our U.S. operations, which included the impact of wage increases in March and September 2023, and July 2024, partially offset by sales leverage and improved productivity. SG&A expenses as percentage of net sales were lower in our Canadian and Other International operations.

Cash Flows from Financing Activities Net cash used in financing activities totaled $10,764 in 2024, compared to $2,614 in 2023. Cash flow used in financing activities primarily related to the payment of dividends, repayments of long-term debt and short-term borrowings, repurchases of common stock, and withholding taxes on stock-based awards. On May 18, 2024, we paid the $1,000 outstanding principal balance on the 2.750% Senior Notes, using cash and cash equivalents and short-term investments. Cash flow provided by financing activities included proceeds from short-term borrowings and four Guaranteed Senior Notes totaling approximately $500, at fixed interest rates ranging from 1.400% to 2.120%, issued by our Japan subsidiary.

Dividends Cash dividends declared in 2024 totaled $8,589 or $19.36 per share, as compared to $1,703 or $3.84 per share in 2023. Dividends in 2024 included a special dividend of $15 per share, resulting in a payment of approximately $6,655. In April 2024, the Board of Directors increased our quarterly cash dividend from $1.02 to $1.16 per share.

Gross Margin 202520242023 Net sales$269,912$249,625$237,710 Less merchandise costs239,886222,358212,586 Gross margin$30,026$27,267$25,124 Gross margin percentage11.12 %10.92 %10.57 % Gross margin percentage increased 20 basis points. Excluding the impact of gasoline price deflation on net sales, gross margin percentage was 11.03%, an increase of 11 basis points. This increase was positively impacted by 19 basis points in our core merchandise categories, primarily due to fresh foods and our co-branded credit card program. Gross margin percentage was negatively impacted by seven basis points due to a LIFO charge in 2025 for higher merchandise costs and one basis point in warehouse ancillary and other businesses. Changes in foreign currencies relative to the U.S. dollar negatively impacted gross margin by approximately $224, attributable to our Other International and Canadian operations. The gross margin in core merchandise categories, when expressed as a percentage of core merchandise sales (rather than total net sales), increased 16 basis points. The increase was primarily due to fresh foods and foods and sundries, partially offset by non-foods. This measure eliminates the impact of changes in sales penetration and gross margin from our warehouse ancillary and other businesses. Gross margin on a segment basis, when expressed as a percentage of the segment's own sales and excluding the impact of changes in gasoline prices on net sales (segment gross margin percentage), increased in our U.S. segment, which performed similarly to the consolidated results above. Our Canadian and Other International segments gross margin increased, primarily due to increases in core merchandise categories and warehouse ancillary and other businesses.

Interest Income and Other, Net 202520242023 Interest income$469 $533 $470 Foreign-currency transaction gains, net84 26 29 Other, net36 65 34 Interest income and other, net$589 $624 $533 The decrease in interest income in 2025 was due to lower interest rates, partially offset by higher cash balances. Foreign-currency transaction gains, net, include revaluation or settlement of monetary assets and liabilities, and mark-to-market adjustments for forward foreign-exchange contracts. See Derivatives and Foreign-Currency sections in Note 1 to the consolidated financial statements included in Item 8 of this Report.

LIQUIDITY AND CAPITAL RESOURCES The following table summarizes our significant sources and uses of cash and cash equivalents: 202520242023 Net cash provided by operating activities$13,335 $11,339 $11,068

Net cash used in investing activities(5,311)(4,409)(4,972) Net cash used in financing activities(3,775)(10,764)(2,614) Our primary sources of liquidity are cash flows from operations, cash and cash equivalents, and short-term investments. Cash and cash equivalents and short-term investments were $15,284 and $11,144 at August 31, 2025, and September 1, 2024. Of these balances, unsettled credit and debit card receivables represented approximately $2,670 and $2,519. These receivables generally settle within four days. Material contractual obligations arising in the normal course of business primarily consist of purchase obligations, long-term debt and related interest payments, leases, and construction and land purchase obligations. See Notes 4 and 5 to the consolidated financial statements included in Item 8 of this Report for amounts outstanding on August 31, 2025, related to debt and leases. 28 Purchase obligations consist of contracts primarily related to merchandise, equipment, and third-party services, the majority of which are due in the next 12 months. Construction and land-purchase obligations consist of contracts primarily related to the development and opening of new and relocated warehouses, the majority of which (other than leases) are due in the next 12 months. We believe that our cash and investment positions and operating cash flow, with capacity under existing and available credit agreements, will be sufficient to meet our liquidity and capital requirements for the foreseeable future and that our U.S. current and projected asset position is sufficient to meet our U.S. liquidity requirements.

Cash Flows from Operating Activities Net cash provided by operating activities totaled $13,335 in 2025, compared to $11,339 in 2024. Our cash flow provided by operations is primarily from net sales and membership fees. Cash flow used in operations generally consists of payments to merchandise suppliers, warehouse operating costs, including wages and employee benefits, utilities, credit and debit card processing fees, and operating leases. Cash used in operations also includes payments for income taxes. Changes in our net investment in merchandise inventories (the difference between merchandise inventories and accounts payable) is impacted by several factors, including inventory levels and turnover, payment terms with suppliers, and early payments to obtain discounts.

Cash Flows from Investing Activities Net cash used in investing activities totaled $5,311 in 2025, compared to $4,409 in 2024, and is primarily related to capital expenditures. Net cash from investing activities also includes purchases and maturities of short-term investments.

Capital Expenditure Plans Our primary requirements for capital are acquiring land, buildings, and equipment for new and remodeled warehouses, information systems, and manufacturing and distribution facilities. In 2025, we spent $5,498 on capital expenditures, and it is our current intention to spend $6,000 to $6,500 during fiscal 2026. These expenditures are expected to be financed with cash from operations, cash and cash equivalents, and short-term investments. We opened 27 new warehouses, including three relocations, in 2025, and plan to open up to 35 new warehouses, including five relocations, in 2026. There can be no assurance that current expectations will be realized, and plans are subject to change upon further review of our capital expenditure needs and the economic environment.

Off-Balance Sheet Arrangements In the opinion of management, we have no off-balance sheet arrangements that have had or are reasonably likely to have a material current or future effect on our financial condition or financial statements.

Insurance/Self-insurance Liabilities Claims for employee health-care benefits, workers' compensation, general liability, property damage, directors' and officers' liability, vehicle liability, inventory loss, and other exposures are funded predominantly through self-insurance. Insurance coverage is maintained for certain risks to limit exposures to very large losses. We use various risk management mechanisms, including a wholly-owned captive insurance subsidiary, and participate in a reinsurance program. Liabilities associated with the risks that we retain are not discounted and are estimated using historical claims experience, demographic factors, severity factors, and other actuarial assumptions. The costs of claims are highly unpredictable and can fluctuate as a result of inflation rates, regulatory or legal changes, and unforeseen developments 30 in claim frequency and amounts. While we believe our estimates are reasonable, actual claims and costs could differ significantly from recorded liabilities. Historically, adjustments to our estimates have been immaterial.

U.S.7 %5 %4 % Canada8 %8 %8 % Other International8 %8 %8 % Total Company8 %6 %5 % E-commerce16 %16 %(5)% _______________ (1)Comparable sales for 2024 were calculated using comparable retail weeks. Net sales increased $20,287 or 8% during 2025. The improvement was primarily attributable to an increase in comparable sales of $14,788 or 6%. Comparable sales were positively impacted by increases of 5% in shopping frequency and approximately 1% in average ticket. The remaining increase in net sales was driven by sales at the 24 net new warehouses opened since the end of 2024. Sales increased $19,086 or 10% in core merchandise categories, increasing in all categories. Sales in warehouse ancillary and other businesses increased $1,201, or 2%. Lower gasoline prices negatively impacted net sales by $2,329, or 93 basis points, with an 8% decrease in the average price per gallon. The volume of gasoline sold increased approximately 2%, positively impacting net sales by $440, or 18 basis points. Changes in foreign currencies relative to the U.S. dollar negatively impacted net sales by approximately $1,943, or 78 basis points, attributable to our Other International and Canadian operations.

Legal and Regulatory Risks Changes in or failure to comply with laws and regulations could adversely impact our business, financial condition and results of operations. We are subject to a wide and growing array of federal, state, local and international laws and regulations relating to (among other things), product and food safety, marketing, information security and privacy, labor and employment, imports and customs, transportation, intellectual property, anti-corruption, and environmental or social matters. These laws and regulations may expand mandatory reporting, increase the scope and complexity of matters that we are required to regulate, assess, and disclose, potentially limit our sourcing flexibility or require extensive system or other changes that could increase the cost of doing business. Failure to comply could result in harm to our members, employees, workers in the value chain or others, significant costs to satisfy environmental compliance, remediation or compensatory requirements, or the imposition of severe penalties or restrictions on operations by governmental agencies or courts that could adversely affect our business, financial condition and results of operations. The impact of changes to or the introduction of new laws, regulations and policies and enforcement practices, can be unpredictable. These may require extensive system and operational changes, be difficult to implement, increase the cost of doing business, require significant capital expenditures, adversely impact the products or services we offer, or result in adverse publicity and harm to our reputation. If we fail to comply or respond adequately to changes in laws and regulations, our business, operations and financial performance may be adversely affected. We are subject to risks associated with the legislative, judicial, accounting, regulatory, political and economic factors specific to the countries or regions in which we operate, which could adversely affect our business, financial condition and results of operations. At the end of 2025, we operated 285 warehouses outside of the U.S. (31% of all warehouse locations), and we plan to continue expanding our international operations. Future operating results internationally could be negatively affected by a variety of factors, many similar to those we face in the U.S., certain of which are beyond our control. These factors include political and economic conditions, regulatory constraints, currency regulations, policy changes, and other matters in any of the countries or regions in which we operate, now or in the future. Other factors that may impact international operations include foreign trade (including tariffs and trade sanctions), monetary and fiscal policies and the laws and regulations of the U.S. and foreign governments, agencies and similar organizations, and risks associated with having major facilities in locations which have been historically less stable than the U.S. Risks inherent in international operations also include, among others, the costs and difficulties of managing international operations, adverse tax consequences, and difficulty in enforcing intellectual property rights. New reporting obligations globally are increasing the cost and complexity of doing business. Changes in accounting standards and subjective assumptions, estimates and judgments by management related to complex accounting matters could significantly affect our financial condition and results of operations. Accounting principles and related pronouncements, implementation guidelines, and interpretations we apply to a wide range of matters that are relevant to our business, including self-insurance liabilities, are highly complex and involve subjective assumptions, estimates and judgments by our management. 16 Changes in rules or interpretation or changes in underlying assumptions, estimates or judgments by our management could significantly change our reported or expected financial performance and have a material impact on our consolidated financial statements.

We might sell products that cause illness or injury to our members, harm to our reputation, and expose us to litigation. If our merchandise, including food and prepared food products for human consumption, drugs, children's products, pet products and durable goods, do not meet or are perceived not to meet applicable safety or labeling standards or our members' expectations, we could experience lost sales, increased costs, litigation or reputational harm. The sale of these items involves the risk of illness or injury to our members. Such illnesses or injuries could result from tampering by unauthorized third parties, product contamination or spoilage, including the presence of foreign objects, substances, chemicals, other agents, or residues introduced during the growing, manufacturing, storage, handling and transportation phases, or faulty design. Our suppliers are generally contractually required to comply with product safety laws, and we are dependent on them to ensure that the products we buy comply with safety and other standards. While we are subject to governmental inspection and regulations and work to comply in all material respects with applicable laws and regulations, we cannot be sure that consumption or use of our products will not cause illness or injury or that we will not be subject to claims, lawsuits, or government investigations relating to such matters, resulting in costly product recalls and other liabilities that could adversely affect our business and results of operations. Even if a product liability claim is unsuccessful or is not fully pursued, negative publicity could adversely affect our reputation with existing and potential members and our corporate and brand image, and these effects could be long-term. If we do not successfully develop and maintain a relevant and comprehensive digital experience for our members, our results of operations could be adversely impacted. We must keep pace with changing member expectations and new developments by our competitors. Our members are increasingly using mobile phones, tablets, computers, and other devices to shop and otherwise interact with us. We are making investments in our websites and mobile applications. If we are 12 unable to make, improve, or develop relevant member-facing technology in a timely manner, our ability to compete and our results of operations could be adversely affected.

Business and Operating Risks We are highly dependent on the financial performance of our U.S. and Canadian operations. Our financial and operational performance is highly dependent on our U.S. and Canadian operations, which comprised 86% and 84% of net sales and operating income in 2025. Within the U.S., we are highly dependent on our California operations, which comprised 26% of U.S. net sales in 2025. Our California market, in general, has a larger percentage of higher volume warehouses as compared to our other domestic markets. Any substantial slowing or sustained decline in these operations could materially adversely affect our business and financial results. Declines in financial performance of our U.S. operations, particularly in California, and our Canadian operations could arise from, among other things: slow growth or declines in comparable warehouse sales (comparable sales); negative trends in operating expenses, including increased labor, healthcare and energy costs; failing to meet targets for warehouse openings; cannibalizing existing locations with new warehouses; shifts in sales mix toward lower gross margin products; changes or uncertainties in economic conditions in our markets, including higher levels of unemployment and depressed home values; and failing to consistently provide high quality and innovative new products. We may be unsuccessful implementing our growth strategy, including expanding our business in existing markets and new markets, and integrating acquisitions, which could have an adverse impact on our business, financial condition and results of operations. Our growth is dependent, in part, on our ability to acquire property and build or lease new warehouses and depots. We compete with other retailers and businesses for suitable locations. Local land use and other regulations restricting the construction and operation of our warehouses and depots, as well as local community actions opposed to the location of our warehouses or depots at specific sites and the adoption of local laws restricting our operations and environmental regulations, may impact our ability to find suitable locations and increase the cost of sites and of constructing, leasing and operating warehouses and depots. We also may have difficulty negotiating leases or purchase agreements on acceptable terms. With continued growth in global demand for electricity and water stress in certain regions, we may have difficulty securing long-term utility contracts for new buildings or incur additional costs due to onsite generation and storage requirements. In addition, certain jurisdictions have enacted or proposed laws and regulations that would prevent or restrict the operation or expansion plans of certain large retailers and warehouse clubs, including us. Failure to effectively manage these and other similar factors may affect our ability to timely build or lease and operate new warehouses and depots, which could have a material adverse effect on our future growth and profitability. We seek to expand in existing markets to attain a greater overall market share. A new warehouse may draw members away from our existing warehouses and adversely affect their comparable sales performance, member traffic, and profitability. We intend to continue to open warehouses in new markets. Associated risks include difficulties in attracting members due to a lack of familiarity with us, attracting members of other wholesale club operators, our lesser familiarity with local member preferences, and seasonal differences in the market. Entry into new markets may bring us into competition with new competitors or with existing competitors with a large, established market presence. We cannot ensure that new warehouses and new e-commerce sites will be profitable and future profitability could be delayed or otherwise materially adversely affected. We have made and may continue to make investments and acquisitions to improve the speed, accuracy and efficiency of our supply chains and delivery channels. The effectiveness of these investments can be less predictable than opening new locations and might not provide the anticipated benefits or desired rates of return.

Fluctuations in foreign-exchange rates may adversely affect our results of operations. During 2025, our international operations, including Canada, generated 27% and 34% of our net sales and operating income. Our international operations have accounted for an increasing portion of our warehouses, and we plan to continue international growth. To prepare our consolidated financial statements, we translate the financial statements of our international operations from local currencies into U.S. dollars using current exchange rates. Future fluctuations in exchange rates that are unfavorable to us may adversely affect the financial performance of our Canadian and Other International operations and have a corresponding adverse period-over-period effect on our results of operations. As we continue to expand internationally, our exposure to fluctuations in foreign-exchange rates may increase. A portion of the products we purchase is paid for in a currency other than the local currency of the country in which the goods are sold. Currency fluctuations may increase our merchandise costs and may not be passed on to members and thus may adversely affect our results of operations. Natural disasters, extreme weather conditions, or other catastrophic events could negatively affect our business, financial condition, and results of operations. Natural disasters, extreme weather conditions, and other catastrophic events, including those impacted by climate change, such as extreme temperatures, hurricanes, typhoons, floods, earthquakes, wildfires, droughts; acts of terrorism or violence, including active shooter situations; and energy shortages; particularly in California or Washington state, where our centralized operating systems and administrative personnel are located, could negatively affect our operations and financial performance. Such events could result in physical damage to our properties or inventory, additional heating, cooling, and refrigeration costs, limitations on store operating hours, less frequent visits by members to physical locations, the temporary closure of warehouses, depots, manufacturing or home office facilities, the temporary lack of an adequate work force, disruptions to our IT systems, the temporary or long-term disruption in the supply of products from some local or overseas suppliers, the temporary disruption in the transport of goods to or from overseas, delays in the delivery of goods to our warehouses or depots, delays in online merchandise delivery, the temporary reduction in the availability of products in our warehouses, and long-term disruption or threats to the habitability of key markets in which we operate. These events could also reduce demand for our products or make it difficult or impossible to procure products. We may be required to suspend operations in some or all of our locations, which could have a material adverse effect on our business, financial condition and results of operations.

Failure to meet financial market expectations could adversely affect the market price and volatility of our stock. We believe that the price of our stock currently reflects high market expectations for our future operating results. Any failure to meet or delay in meeting these expectations, including our comparable sales growth rates, membership fee revenue, including new member sign-ups and renewal rates, gross margin, earnings, earnings per share, new warehouse openings, or dividend or stock repurchase policies could cause the price of our stock to decline.

Inclusion The commitment to "Take Care of Our Employees" includes promoting an inclusive and respectful workplace. We strive for an environment where all employees feel that they belong, are accepted, included, respected and supported. We demonstrate leadership commitment to inclusion through consistent communication, employee development and education, support of diversity and inclusion initiatives within the organization, community involvement, and supplier inclusion. Listening to our employees is one of the ways Costco takes care of its workforce. In 2025, we hosted the Costco Connects meetings, its second annual Costco Connects campaign. These open listening sessions are an invitation for employees to talk about what is on their minds and what is impacting them both personally and professionally. This allows Costco leaders to engage with their employees on a deeper level and for employees to build connections with each other. This year we had approximately 200,000 employees participate globally. Costco continues its efforts to develop future leaders, including through our supervisor in training (SIT) programs in the U.S. and Canada. In 2025, approximately 7,500 hourly employees completed the 6-week course.

Membership Our members may utilize their memberships at all of our warehouses and e-commerce sites. Gold Star memberships are available to individuals; Business memberships are limited to businesses, including individuals with a business license, retail sales license, or comparable document. Business members may add additional cardholders (affiliates), to which the same annual fee applies. Affiliates are not available for Gold Star members. During fiscal 2024, our annual fee for these memberships was $60 in the U.S. and varies in other countries. All paid memberships include a free household card. Paid members (except affiliates) were eligible to upgrade to an Executive membership in the U.S., for an additional annual fee of $60. Executive memberships are also available in Canada, Mexico, the U.K., Japan, Korea, Taiwan, and Australia, for which the additional fee varies. Executive members earn a 2% reward on qualified purchases (generally up to a maximum reward of $1,000 per year), redeemable at Costco warehouses. The sales penetration of Executive members represented approximately 73.3% of worldwide net sales in 2024. Our member renewal rate was 92.9% in the U.S. and Canada and 90.5% worldwide at the end of 2024. The majority of members renew within six months following their renewal date. Our renewal rate, which excludes affiliates of Business members, is a trailing calculation that captures renewals during the period seven to eighteen months prior to the reporting date. Our membership counts include active memberships as well as memberships that have not renewed within the 12 months prior to the reporting date.

Item 1-Business Costco Wholesale Corporation and its subsidiaries (Costco or the Company) began operations in 1983, in Seattle, Washington. We are principally engaged in the operation of membership warehouses in the United States (U.S.) and Puerto Rico, Canada, Mexico, Japan, the United Kingdom (U.K.), Korea, Australia, Taiwan, China, Spain, France, Sweden, Iceland, and New Zealand. Costco operated 914, 890, and 861 warehouses worldwide at August 31, 2025, September 1, 2024, and September 3, 2023. The Company operates e-commerce sites in the U.S., Canada, Mexico, the U.K., Korea, Taiwan, Japan, and Australia. Our common stock trades on the NASDAQ Global Select Market, under the symbol "COST." We report on a 52/53-week fiscal year, consisting of thirteen four-week periods and ending on the Sunday nearest the end of August. The first three quarters consist of three periods each, and the fourth quarter consists of four periods (five weeks in the thirteenth period in a 53-week year). The material seasonal impact in our operations is increased net sales and earnings during the winter holiday season. References to 2025 and 2024 relate to the 52-week fiscal years ended August 31, 2025, and September 1, 2024. References to 2023 relate to the 53-week fiscal year ended September 3, 2023.

General We operate membership warehouses and e-commerce sites based on the concept that offering low prices on a limited selection of nationally-branded and private-label products in a wide range of categories will produce high sales volumes and rapid inventory turnover. When combined with the operating efficiencies achieved by volume purchasing, efficient distribution and reduced handling of merchandise in no-frills, self-service warehouse facilities, these volumes and turnover enable us to operate profitably at significantly lower gross margins (net sales less merchandise costs) than most other retailers. We often sell inventory before we are required to pay for it, even while taking advantage of early payment discounts. We buy most of our merchandise directly from suppliers and route it to cross-docking consolidation points (depots) or directly to our warehouses. Our depots receive large shipments from suppliers and quickly ship these goods to warehouses. This process creates freight volume and handling efficiencies, lowering costs associated with traditional multiple-step distribution channels. Our e-commerce operations ship merchandise through our depots and logistics operations, as well as through drop-ship and other delivery arrangements with our suppliers. Our average warehouse space is approximately 147,000 square feet, with newer units being slightly larger. Floor plans are designed for efficiency in the use of selling space, the handling of merchandise, and the control of inventory. Because shoppers are attracted principally by the quality of merchandise and low prices, our warehouses are not elaborate. By strictly controlling the entrances and exits and using a membership format, we believe our inventory losses (shrinkage) are well below those of typical retail operations. Our operating hours are shorter than many other retailers, and due to other efficiencies inherent in a warehouse club operation, we believe labor costs are lower relative to the volume of sales. In the U.S., we recently added exclusive shopping hours for our Executive members and our gasoline operations generally have extended hours. Merchandise is generally stored on racks above the sales floor and displayed on pallets containing large quantities, reducing labor required. In general, with variations by country, our warehouses accept certain credit cards, including Costco co-branded cards, debit cards, cash and checks, Executive member 2% reward certificates, co-brand cardholder rebates, and our proprietary stored-value card (shop card). Our strategy is to provide our members with a broad range of high-quality merchandise at prices we believe are consistently lower than elsewhere. We seek to limit most items to fast-selling models, sizes, and colors. We carry less than 4,000 active stock keeping units (SKUs) per warehouse in our core warehouse business, significantly less than other broadline retailers. We average from 9,000 to 10,000 SKUs online, some of which are available in our warehouses. Many consumable products are offered for sale in case, carton, or multiple-pack quantities only. To promote member satisfaction, we generally accept returns of merchandise. On certain electronic items, we have a 90-day return policy and provide, free of charge, technical support services, as well as an extended warranty. Additional third-party warranty coverage is sold on certain electronic items and major appliances.

Total employees341,000 333,000 316,000 Growth and Engagement We believe that our warehouses are among the most productive in the retail industry, owing largely to the commitment and efficiency of our employees. We seek to provide them not merely with employment but careers. Many attributes of our business contribute to the objective. The more significant include: competitive compensation and benefits; a commitment to employee development and promoting from within; and a target ratio of at least 50% of our base being full-time employees. These attributes contribute to what we consider, especially for the industry, a high retention rate. In 2025, in the U.S. and Canada that rate was approximately 94% for employees who have been with us for at least one year.

NamePositionExecutiveOfficerSinceAge Ron M. VachrisPresident and Chief Executive Officer. Mr. Vachris has been a director since February 2022. Mr. Vachris was previously President and Chief Operating Officer from February 2022 to December 2023. He was Executive Vice President of Merchandising from June 2016 to January 2022, Senior Vice President, Real Estate Development, from August 2015 to June 2016, and Senior Vice President, General Manager, Northwest Region, from 2010 to July 2015.201660 Gary MillerchipExecutive Vice President and Chief Financial Officer. Mr. Millerchip previously served as Senior Vice President and Chief Financial Officer of The Kroger Co. from April 2019 to February 2024 and, prior to that, as Chief Executive Officer of Kroger Personal Finance since July 2010.202454 Russ MillerSenior Executive Vice President, U.S. Operations. Mr. Miller was Executive Vice President, Chief Operating Officer, Southwest Division and Mexico, from January 2018 to May 2022. Mr. Miller was Senior Vice President, Western Canada Region, from 2001 to January 2018. Mr. Miller will be retiring from the Company effective February 2026.201868 Claudine AdamoExecutive Vice President, Merchandising. Ms. Adamo was Senior Vice President, Non-Foods, from 2018 to February 2022, and Vice President, Non-Foods, from 2013 to 2018.202255 Patrick CallansExecutive Vice President, Administration. Mr. Callans was Senior Vice President, Human Resources and Risk Management, from 2013 to December 2018.201963 Caton FratesExecutive Vice President, Chief Operating Officer, Southwest Division. Mr. Frates was Senior Vice President, Los Angeles Region, from 2015 to May 2022. Mr. Frates will be appointed Senior Executive Vice President, Warehouse Operations - U.S. and Mexico, effective February 2026.202257 Teresa JonesExecutive Vice President, Global Depots and Traffic. Ms. Jones was Senior Vice President, Depot Operations from August 2022 to July 2024, and Vice President, Depot Operations, from 2018 to 2022.202456 Jim C. KlauerExecutive Vice President, Chief Operating Officer, Northern Division. Mr. Klauer was Senior Vice President, Non-Foods and E-commerce Merchandise, from 2013 to January 2018.201863 Javier PolitExecutive Vice President, Chief Information and Digital Officer. Mr. Polit previously served as Chief Information Officer for Mondelez International (formerly Kraft Foods) from 2022 to 2024. From 2017 to 2022, he was Chief Information Officer for The Procter & Gamble Company. Prior to that role, he served as Group Chief Information Officer for The Coca-Cola Company from 2007 to 2017.202361 Pierre RielExecutive Vice President, Chief Operating Officer, International Division. Mr. Riel was Senior Vice President, Country Manager, Canada, from 2019 to March 2022, and Senior Vice President, Eastern Canada Region, from 2001 to 2019.202262 Yoram RubanenkoExecutive Vice President, Chief Operating Officer, Eastern Division. Mr. Rubanenko was Senior Vice President and General Manager, Southeast Region, from 2013 to September 2021, and Vice President, Regional Operations Manager for the Northeast Region, from 1998 to 2013.202161 John SullivanExecutive Vice President, General Counsel & Corporate Secretary. Mr. Sullivan has been General Counsel since 2016 and Corporate Secretary since 2010.202165 W. Richard WilcoxExecutive Vice President, Chief Operating Officer, Southwest Division. Mr. Wilcox was Senior Vice President, General Manager - San Diego Region from 2016 to October 2025.202559

We offer merchandise and services in the following categories: ■Core Merchandise Categories: •Foods and Sundries (including sundries, dry grocery, candy, cooler, freezer, liquor, and tobacco) •Non-Foods (including major appliances, small electronics, health and beauty aids, hardware, lawn and garden, sporting goods, tires, toys and seasonal, automotive, stamps, tickets, apparel, furniture, domestics, housewares, special order kiosk, and jewelry)

■Other Businesses (includes e-commerce, business centers, travel, and other) Warehouse ancillary operate primarily within, next to or near our warehouses, encouraging more frequent shopping. The number of warehouses with gas stations varies significantly by country. We operated 747 gas stations at the end of 2025. Our gasoline business represented approximately 10% of total net sales in 2025. Our other businesses sell products and services that largely complement our warehouse operations. Our e-commerce operations give members convenience and a broader selection of goods and services. Net sales for e-commerce represented approximately 7% of total net sales in 2025. Digitally-enabled sales, which represents sales delivered to members that are initiated through a digital device, whether fulfilled through a warehouse or distribution center, as well as Costco Travel, represented approximately 10% of total net sales in 2025. Our business centers carry items tailored for food services, convenience stores and offices and offer walk-in shopping and deliveries. Business centers are included in our total warehouse count. Costco Travel offers vacation packages, car rentals, cruises and other travel products exclusively for Costco members (offered to varying degrees in the U.S., Canada, Australia, and the U.K.). We have direct relationships with many producers of brand-name merchandise. We do not obtain a significant portion of merchandise from any one supplier. When sources of supply become unavailable, we seek alternative sources or items. For future product supply need, we pursue diversification in our supply-chain and seek to expand in-country production. We also purchase and manufacture private-label merchandise, as long as quality and member demand are high and the value to our members is significant. Certain financial information for our segments and geographic areas is included in Note 11 to the consolidated financial statements included in Item 8 of this Report.

Employee Base At the end of 2025, we employed 341,000 employees worldwide. Approximately 95% are employed in our membership warehouses and distribution channels. Around 5% are represented by unions. We also utilize seasonal employees.