The following information should be read in conjunction with the condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q and the audited consolidated financial statements and notes thereto of Core & Main, Inc. for the fiscal year ended February 1, 2026 included in our 2025 Annual Report on Form 10-K. The following discussion may contain forward-looking statements that reflect our plans, estimates and beliefs. Our actual results could differ materially from those discussed below and elsewhere in this Quarterly Report on Form 10-Q for a number of important factors, particularly those described under the caption “Cautionary Note Regarding Forward-Looking Statements” and “Risk Factors” in Part I, Item 1A of the 2025 Annual Report on Form 10-K. Overview Core & Main, Inc. (“Core & Main” and collectively with its subsidiaries, the “Company”) is a leading specialty distributor dedicated to advancing reliable infrastructure with local service, nationwide. With a focus on water, wastewater, storm drainage and fire protection products, and related services, we provide solutions to municipalities, private water companies and professional contractors across municipal, non-residential and residential end markets, nationwide. Our specialty products and services are used primarily in the maintenance, repair, replacement and new construction of water, wastewater, storm drainage and fire protection infrastructure. We reach customers through a network of over 370 branches across the United States (“U.S.”) and Canada. Our products include pipes, valves, fittings, storm drainage products, fire protection products, smart utility products and other products. We complement our core products through additional offerings, including smart meter systems, fusible high-density polyethylene (“fusible HDPE “) piping solutions, specifically engineered treatment plant products, geosynthetics and erosion control products. Basis of Presentation The Company is a holding company and its primary material assets are its direct and indirect ownership interest in Core & Main Holdings, LP, a Delaware limited partnership (“Holdings”) and deferred tax assets associated with this ownership. Holdings has no operations and no material assets of its own other than its indirect ownership interest in Core & Main LP, a Florida limited partnership, the legal entity that conducts the operations of Core & Main. The condensed consolidated financial information of Core & Main, within this Quarterly Report on Form 10-Q, includes the consolidated financial information of Holdings and its subsidiaries. The limited partner interests of Holdings (“Partnership Interests”) not held by Core & Main are reflected as non-controlling interests in the condensed consolidated financial statements. Fiscal Year The Company’s fiscal year is a 52- or 53-week period ending on the Sunday nearest to January 31st. Quarters within the fiscal year include 13-week periods, unless a fiscal year includes a 53rd week, in which case the fourth quarter of the fiscal year will be a 14-week period. Each of the three months ended May 3, 2026 and three months ended May 4, 2025 included 13 weeks. The current fiscal year ending January 31, 2027 (“fiscal 2026”) will include 52 weeks. Significant Events During the Three Months Ended May 3, 2026 On April 9, 2026, Core & Main LP amended the terms of the Senior ABL Credit Facility (as defined in Note 6 to the unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q) in order to extend the maturity from February 9, 2029 to April 9, 2031. Key Factors Affecting Our Business End-Markets and General Economic Conditions Historically, demand for our products has been tied to municipal infrastructure spending, non-residential construction and residential construction in the U.S. We estimate that, based on net sales for the fiscal year ended February 1, 2026 (“fiscal 2025”), our exposure by end market was approximately 44% municipal, 38% non-residential and 18% residential. Infrastructure spending and the non-residential and residential construction markets are subject to cyclical market pressures. Municipal demand has been relatively steady over the long term due to the consistent and immediate need to replace broken infrastructure; however, activity levels are subject to the availability of funding for municipal projects. Non-residential and residential construction activities are primarily driven by availability of credit, interest rates, general economic conditions, consumer confidence and other factors that are beyond our control. Fluctuations in interest rates will continue to impact home buying and new lot development in the residential end market. The length and magnitude of these cycles have varied over time and by market. Cyclicality can also have an impact on the products we procure for our customers or our related services, as further discussed under “—Price Fluctuations” below. 20 Seasonality Our operating results within a fiscal year are typically impacted by seasonality. Colder weather and shorter daylight hours historically have reduced construction, maintenance and repair activity. As a result, net sales are typically lower in our first and fourth fiscal quarters, especially in northern geographic regions. Abnormal levels of precipitation may negatively impact our operating results as it may result in the delay of construction projects across fiscal quarters. Our operating results may also be adversely affected by hurricanes, which typically occur during our third fiscal quarter. Our cash flows from operating activities are typically lower during the first and second fiscal quarters due to investment in working capital and annual incentive compensation payments and are typically higher during the third and fourth fiscal quarters due to cash inflows associated with receivable collections and reduced inventory purchases. Price Fluctuations Our financial performance is impacted by price fluctuations in the cost to procure substantially all the products we sell and our ability to reflect these changes, in a timely manner, in our customer pricing. The costs to procure the products we sell are historically volatile and subject to fluctuations arising from changes in supply and demand, national and international economic conditions, labor and material costs, competition, market speculation, government regulation, weather events, trade policies and periodic delays in the delivery of our products. If we are able to pass through price increases to our customers, our net sales will increase; conversely, during periods of deflation, our customer pricing may decrease to remain competitive, resulting in decreased net sales. Additionally, supply chain disruptions may result in increases in product costs which we may not be able to pass on to our customers, loss of sales due to lack of product availability or potential customer claims from the inability to provide products in accordance with contractual terms. Greater product availability from supply chain improvements may lead to increased competition that may result in price and volume declines. The conflicts in the Middle East may have caused supply chain disruptions and may result in fluctuations in product prices. We continue to monitor all of these factors and the resulting price impacts. In addition, the cost of products we purchase and sell may be impacted by the imposition of additional tariffs on imported goods from several geographic regions. The U.S. government has implemented tariffs and trade restrictions on certain goods produced outside the United States. In February 2026, the U.S. Supreme Court issued a ruling invalidating certain tariffs previously imposed under the International Emergency Economic Powers Act. The current U.S. presidential administration has implemented, or indicated it intends to implement, replacement tariffs for all or a portion of the invalidated tariffs. We believe our exposure to tariffs is limited as over three-quarters of products that we purchase are manufactured domestically. In addition, when price increases occur, we proactively evaluate our customer pricing and strategic buying opportunities. The potential direct and indirect impacts of tariffs on the broad economy and our end markets are uncertain and we continue to closely monitor and evaluate the ongoing situation. We are also exposed to fluctuations in costs for petroleum as we distribute a substantial portion of our products by truck. Petroleum prices have increased as a result of the conflicts in the Middle East. In addition, we are exposed to fluctuations in prices for imported products due to logistical challenges and changes in labor, fuel, shipping container and other importation-related costs. We may also face price fluctuations on other products due to constrained labor availability and manufacturing capacity of our suppliers. Our ability to reflect these changes, in a timely manner, in our customer pricing may impact our financial performance. Interest Rates Certain of our indebtedness, including borrowings under the Senior Term Loan Credit Facility (as defined in Note 6 to the unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q) and the Senior ABL Credit Facility, are subject to variable rates of interest and expose us to interest rate risk. The Senior Term Loan Credit Facility and the Senior ABL Credit Facility each bear interest based on term secured overnight financing rate (“Term SOFR”). If interest rates increase, our debt service obligations on our variable-rate indebtedness will increase and our net income would decrease, even though the amount borrowed under the facilities remains the same. As of May 3, 2026, we had $2,160 million of outstanding variable-rate debt. We seek to mitigate our exposure to interest rate volatility through the entry into interest rate swap instruments, such as our interest rate swap, associated with borrowings under the Senior Term Loan Credit Facility, which effectively converts $700 million of our variable rate debt to fixed rate debt through the instrument maturity on July 27, 2026 and the interest rate swap that has a starting notional amount of $750 million that increases to $1,500 million on July 27, 2026 through the instrument maturity on July 27, 2028. Despite these efforts, unfavorable movement in interest rates may further result in higher interest expense and cash payments. 21 Acquisitions In addition to our organic growth strategy, we opportunistically pursue strategic asset and business acquisitions to grow our business. Below is a summary of the acquisitions that closed during the fiscal year ended February 1, 2026 (the "Fiscal 2025 Acquisitions") with an aggregate transaction value of $76 million, subject to working capital adjustments, respectively. Product Lines Closing Date Fiscal 2025 Pioneer Supply LLC Pipes, Valves & Fittings; Storm Drainage; Smart Utility products January 2026 Canada Waterworks Inc. and Canada Waterworks Ottawa Inc. Pipes, Valves & Fittings; Storm Drainage September 2025 As we integrate these and other acquisitions into our existing operations, we may not be able to identify the specific financial statement impacts associated with these acquisitions. There can be no assurance that the anticipated benefits of the acquisitions will be realized on the timeline we expect, or at all. Key Business Metrics Net Sales We generate net sales primarily from the sale of water, wastewater, storm drainage and fire protection products and the provision of related services to over 60,000 customers, as of February 1, 2026, including municipalities, private water companies and professional contractors. We recognize sales, net of sales tax, customer incentives, returns and discounts. Net sales fluctuate as a result of changes in product costs as we seek to reflect these changes in our customer pricing in a timely manner. This will increase net sales if we are able to pass along price increases and decrease net sales if we are required to reduce our customer prices as a result of competitive dynamics. We categorize our net sales into pipes, valves & fittings, storm drainage products, fire protection products and smart utility products: •Pipe, valves, hydrants, fittings include these products and other complementary products and services. Pipe includes PVC, ductile iron, fusible HDPE and copper tubing. •Storm drainage products primarily include corrugated piping systems, retention basins, manholes, grates, geosynthetics, erosion control and other related products. •Fire protection products primarily include fire protection pipe, sprinkler heads, fittings, valves and devices as well as custom fabrication services. •Smart utility products primarily include smart meter products, meter sets, meter accessories, installation, software and other services. Gross Profit Gross profit represents the difference between the product cost inclusive of material costs from suppliers (net of earned rebates and discounts and including the cost of inbound freight), labor and overhead costs and depreciation and the net sale price to our customers. Gross profit may be impacted by the time between changes in supplier costs and changes in our customer pricing. Gross profit may not be comparable to those of other companies, as other companies may include all of the costs related to their distribution network in cost of sales. Operating Expenses Operating expenses are primarily comprised of selling, general and administrative costs, which include personnel expenses (salaries, wages, incentive compensation, benefits and payroll taxes), rent, insurance, utilities, professional fees, outbound freight, fuel and repair and maintenance. Net Income Net income represents net sales less cost of sales, operating expenses, depreciation and amortization, interest expense, other expense and the provision for income taxes. 22 Adjusted EBITDA We define Adjusted EBITDA as EBITDA further adjusted for certain items management believes are not reflective of the underlying operations of our business, including but not limited to (a) loss on debt modification and extinguishment, (b) equity-based compensation, (c) expenses associated with the initial public offering and subsequent secondary offerings, (d) expenses associated with acquisition and other activities and (e) other income. Adjusted EBITDA includes amounts otherwise attributable to non-controlling interests as we manage the consolidated Company and evaluate operating performance in a similar manner. We use Adjusted EBITDA to assess the operating results and effectiveness of our business. See “—Non-GAAP Financial Measures” below for further discussion of Adjusted EBITDA and a reconciliation to net income or net income attributable to Core & Main, Inc., the most directly comparable measure under U.S. generally accepted accounting principles (“GAAP”), as applicable. Earnings Per Share Earnings per share represents the Class A common stock basic and diluted earnings per share. For a further description of basic and diluted earnings per share, refer to Note 10 to the unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q. Adjusted Diluted Earnings Per Share We define Adjusted Diluted Earnings Per Share as diluted earnings per share adjusted for (a) amortization of intangible assets, (b) loss on debt modification and extinguishment, (c) equity-based compensation, (d) expenses associated with acquisition and other activities, (e) expenses associated with the initial public offering and subsequent secondary offerings, (f) other income and (g) the tax impact of these Non-GAAP adjustments, divided by the weighted-average number of shares of our common stock outstanding on a fully diluted basis for the applicable period. We use Adjusted Diluted Earnings Per Share to assess the operating results and effectiveness of our business. See “—Non-GAAP Financial Measures” below for further discussion of Adjusted Diluted Earnings Per Share and a reconciliation to diluted earnings per share, the most directly comparable measure under U.S. GAAP. 23 Results of Operations Three Months Ended May 3, 2026 Compared with Three Months Ended May 4, 2025 Amounts in millions (except per share data) Three Months Ended May 3, 2026 May 4, 2025 Net sales $ 1,910 $ 1,911 Cost of sales 1,390 1,401 Gross profit 520 510 Operating expenses: Selling, general and administrative 299 293 Depreciation and amortization 44 46 Total operating expenses 343 339 Operating income 177 171 Interest expense 27 30 Income before provision for income taxes 150 141 Provision for income taxes 37 36 Net income 113 105 Less: net income attributable to non-controlling interests 5 5 Net income attributable to Core & Main, Inc. $ 108 $ 100 Earnings per share: Basic $ 0.57 $ 0.53 Diluted $ 0.57 $ 0.52 Non-GAAP Financial Data: Adjusted EBITDA $ 226 $ 224 Adjusted Diluted Earnings Per Share $ 0.72 $ 0.68 Net Sales Net sales for the three months ended May 3, 2026 was $1,910 million compared with $1,911 million for the three months ended May 4, 2025. Net sales were essentially flat primarily due to decreased volume that was offset by acquisitions. Net sales for pipes, valves & fittings and storm drainage decreased due to lower volume partially offset by acquisitions. Net sales of fire protection products increased due to higher volume and higher selling prices. Net sales of smart utility products increased due to higher volume. Three Months Ended May 3, 2026 May 4, 2025 Percentage Change Pipes, valves & fittings products $ 1,274 $ 1,297 (1.8) % Storm drainage products 278 295 (5.8) % Fire protection products 178 152 17.1 % Smart utility products 180 167 7.8 % Total net sales $ 1,910 $ 1,911 Gross Profit Gross profit for the three months ended May 3, 2026 increased $10 million, or 2.0%, to $520 million compared with $510 million for the three months ended May 4, 2025. Gross profit as a percentage of net sales for the three months ended May 3, 2026 was 27.2% compared with 26.7% for the three months ended May 4, 2025. The overall increase in gross profit as a percentage of net sales was primarily attributable to favorable impacts from the execution of our gross margin initiatives and disciplined purchasing and pricing management. 24 Selling, General and Administrative (“SG&A”) Expenses SG&A expenses for the three months ended May 3, 2026 increased $6 million, or 2.0%, to $299 million compared with $293 million during the three months ended May 4, 2025. SG&A expenses as a percentage of net sales were 15.7% for the three months ended May 3, 2026 compared with 15.3% for the three months ended May 4, 2025. The increase was primarily attributable to higher distribution costs and investments to support long-term growth, including greenfield expansion and sales initiatives, partially offset by the benefits of recent cost actions. Depreciation and Amortization (“D&A”) Expense D&A expense for the three months ended May 3, 2026 was $44 million compared with $46 million during the three months ended May 4, 2025. The decrease was primarily attributable to lower amortization on existing intangible assets. Operating Income Operating income for the three months ended May 3, 2026 increased $6 million, or 3.5%, to $177 million compared with $171 million during the three months ended May 4, 2025. The increase in operating income was primarily attributable to higher gross profit partially offset by higher SG&A expenses. Interest Expense Interest expense was $27 million for the three months ended May 3, 2026 compared with $30 million for the three months ended May 4, 2025. The decrease was primarily attributable to a decrease in interest rates and decreased borrowings under the Senior ABL Credit Facility. Provision for Income Taxes The provision for income taxes for the three months ended May 3, 2026 increased $1 million, or 2.8% to $37 million compared with $36 million for the three months ended May 4, 2025. The increase was primarily attributable to an increase in operating income partially offset by a decrease in the effective tax rate. For the three months ended May 3, 2026 and the three months ended May 4, 2025, our effective tax rate was 24.7% and 25.5%, respectively. The decrease in the effective tax rate was primarily due to net benefits from tax credit investments and certain tax windfall benefits from equity award exercises. Net Income Net income for the three months ended May 3, 2026 increased $8 million, or 7.6%, to $113 million compared with $105 million for the three months ended May 4, 2025. The increase in net income was primarily attributable to an increase in operating income and lower interest expense. Net Income Attributable to Core & Main, Inc. Net income attributable to Core & Main, Inc. for the three months ended May 3, 2026 increased $8 million, or 8.0%, to $108 million compared with $100 million for the three months ended May 4, 2025. The increase was primarily attributable to increased net income. Earnings Per Share The Class A common stock basic earnings per share for the three months ended May 3, 2026 increased 7.5% to $0.57 compared with $0.53 for the three months ended May 4, 2025. The Class A common stock diluted earnings per share for the three months ended May 3, 2026 increased 9.6% to $0.57 compared with $0.52 for the three months ended May 4, 2025. The basic and diluted earnings per share increased due to an increase in net income and lower Class A share counts following share repurchase transactions. Adjusted EBITDA Adjusted EBITDA for the three months ended May 3, 2026 increased $2 million, or 0.9%, to $226 million compared with $224 million for the three months ended May 4, 2025. The increase in Adjusted EBITDA was primarily attributable to higher gross profit partially offset by higher SG&A expenses. For a reconciliation of Adjusted EBITDA to net income or net income attributable to Core & Main, Inc., the most comparable GAAP financial metric, as applicable, see “—Non-GAAP Financial Measures.” 25 Adjusted Diluted Earnings Per Share Adjusted Diluted Earnings Per Share for the three months ended May 3, 2026 increased 5.9% to $0.72 compared with $0.68 for the three months ended May 4, 2025. The increase in Adjusted Diluted Earnings Per Share was primarily attributable to an increase in net income and lower Class A share counts following share repurchase transactions. For a reconciliation of Adjusted Diluted Earnings Per Share to diluted earnings per share, the most comparable GAAP financial metric, as applicable, see “—Non-GAAP Financial Measures.” Liquidity and Capital Resources Historically, we have financed our liquidity requirements through cash flows from operating activities, borrowings under our credit facilities, issuances of equity and debt securities and working capital management activities. Our principal historical liquidity requirements have been for working capital, capital expenditures, acquisitions, servicing indebtedness, payments under the Tax Receivable Agreements and share repurchases (including under the Repurchase Program). As of May 3, 2026, our cash and cash equivalents totaled $150 million. We maintain our cash deposits according to a banking policy that requires diversification across a variety of highly-rated financial institutions. However, this could result in a concentration of cash and cash equivalents across these financial institutions in excess of Federal Deposit Insurance Corporation-insured limits. As of May 3, 2026, there were no outstanding borrowings on our Senior ABL Credit Facility, which provides for borrowings of up to $1,250 million, subject to borrowing base availability. As of May 3, 2026, after giving effect to approximately $24 million of letters of credit issued under the Senior ABL Credit Facility, Core & Main LP would have been able to borrow approximately $1,226 million under the Senior ABL Credit Facility, subject to borrowing base availability. Our short term debt obligations of $24 million are related to quarterly principal payments on the Senior Term Loan Credit Facility. In the three months ended May 3, 2026 and the three months ended May 4, 2025, the Company had a financing cash outflow related to the payment of $42 million and $18 million, respectively, under the Tax Receivable Agreements. The annual payments under the Tax Receivable Agreements increased as a result of exchanges of Partnership Interests completed in fiscal 2023 and fiscal 2024. Payments under the Tax Receivable Agreements are only required to be made to the extent that we realize or are deemed to have realized the benefit of the corresponding tax deductions to reduce payments to federal, state and local taxing authorities. These payments are in an amount that represents 85% of the reduction in payments to such taxing authorities. As such, the cash savings from the incremental tax deductions are expected to exceed the payments under the Tax Receivable Agreements over the life of these arrangements. Based on the anticipated filing date of income tax returns and contractual payment terms in the Tax Receivable Agreements, we expect these payments to occur two fiscal years after we utilize the corresponding tax deductions. Further exchanges of Partnership Interest by Management Feeder will result in additional tax deductions to us and require additional payables pursuant to Tax Receivable Agreements. The actual amount and timing of the additional payments under the Tax Receivable Agreements will vary depending upon a number of factors as discussed further in Note 7 to the unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q. Payments under the Tax Receivable Agreements may be accelerated if we elect an early termination in accordance with the terms of the Tax Receivable Agreements or negotiate a settlement of the Tax Receivable Agreements. An early termination or negotiated settlement of our obligations, or our successor’s obligations, under such Tax Receivable Agreement to make payments thereunder would be based on certain assumptions, including an assumption that we would have sufficient taxable income to fully utilize all potential future tax benefits that are subject to such Tax Receivable Agreement. We believe that our current sources of liquidity, which include cash generated from operations, existing cash and cash equivalents and available borrowing capacity under the Senior ABL Credit Facility, will be sufficient to meet our working capital, capital expenditures and other cash commitments, including obligations relating to our indebtedness and the Tax Receivable Agreements, over the next 12 months, at minimum. We have based these estimates on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. Our growth strategy contemplates future acquisitions for which we will need sufficient access to capital. To finance future acquisitions, particularly larger acquisitions, we may issue additional equity or incur additional indebtedness. Any such additional indebtedness would increase our debt leverage. See “Risk Factors” in Part I, Item 1A of the 2025 Annual Report on Form 10-K. 26 Additionally, we regularly evaluate our approach to our capital allocation, which may include acquisitions, capital expenditures, greenfields, debt reduction (including through open market debt repurchases, negotiated repurchases, other retirements of outstanding debt and opportunistic refinancing of debt), stock repurchases, dividends, payments on Tax Receivable Agreements or other distributions. During the three months ended May 3, 2026 and the three months ended May 4, 2025, we completed $88 million and $39 million, respectively, of repurchases of Class A common stock under the Repurchase Program. For further details, refer to Note 1 to the unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q. We may continue to return capital to our shareholders through share repurchases, including pursuant to the Repurchase Program or initiating dividend payments. The execution of these, and other, capital allocation activities may be at the discretion of, and subject to the approval by, our board of directors and will depend on our financial condition, earnings, liquidity and capital requirements, market conditions, level of indebtedness, contractual restrictions, compliance with our debt covenants, restrictions imposed by applicable law, general business conditions and any other factors that our board of directors deems relevant in making any such determination. Therefore, there can be no assurance that we will engage in any or all of these actions or to what amount of capital we will allocate to each option. The execution of certain initiatives under our capital allocation policy may require distributions by Holdings and Core & Main LP. These entities’ ability to make distributions may be limited as a practical matter by our growth plans as well as Core & Main LP’s Senior Term Loan Credit Facility and Senior ABL Credit Facility. The Senior Term Loan Credit Facility may require accelerated repayment based upon cash flows generated in excess of operating and investing requirements when Core & Main LP’s net total leverage ratio (as defined in the agreement governing the Senior Term Loan Credit Facility) is greater than or equal to 3.25. In addition, the Senior ABL Credit Facility requires us to comply with a consolidated fixed charge coverage ratio of greater than or equal to 1.00 when availability is less than 10.0% of the lesser of (i) the then applicable borrowing base and (ii) the then aggregate effective commitments under the Senior ABL Credit Facility. Substantially all of Core & Main LP’s assets secure the Senior Term Loan Credit Facility and the Senior ABL Credit Facility. Information about our cash flows, by category, is presented in the Condensed Consolidated Statements of Cash Flows and is summarized as follows: Three Months Ended May 3, 2026 May 4, 2025 Cash flows provided by operating activities $ 82 $ 77 Cash flows used in investing activities (21) (16) Cash flows used in financing activities (131) (61) Decrease in cash and cash equivalents $ (70) $ — Operating Activities Net cash provided by operating activities was $82 million for the three months ended May 3, 2026 compared with $77 million for the three months ended May 4, 2025. The $5 million increase was due to an increase in net income and lower investment in working capital in the three months ended May 3, 2026 partially offset by the timing of certain interest payments. Investing Activities Net cash used in investing activities increased by $5 million to $21 million for the three months ended May 3, 2026 compared with $16 million for the three months ended May 4, 2025, primarily attributable to $3 million of investments in tax advantaged limited partnerships. Financing Activities Net cash used in financing activities increased by $70 million to $131 million for the three months ended May 3, 2026 compared with $61 million for the three months ended May 4, 2025, primarily attributable to a $49 million increase in the repurchase of Class A common stock under the Repurchase Program and a $24 million increase in payments under the Tax Receivable Agreements. 27 Financing As of May 3, 2026, our debt obligations (in millions) consisted of the following: Aggregate Principal/Borrowing Capacity Maturity Date Interest 2028 Senior Term Loan $ 1,230 July 27, 2028 (i) Term SOFR plus, in each case, an effective applicable margin of 2.00%, or (ii) the base rate (described in Note 6 included elsewhere in this Quarterly Report on Form 10-Q). The weighted average interest rate, excluding the effects of the interest rate swaps, was 5.65% as of May 3, 2026. 2031 Senior Term Loan 930 February 9, 2031 (i) Term SOFR plus, in each case, an applicable margin of 2.00%, or (ii) the base rate (described in Note 6 included elsewhere in this Quarterly Report on Form 10-Q). The weighted average interest rate, excluding the effects of the interest rate swaps, was 5.65% as of May 3, 2026. Senior ABL Credit Facility(1) 1,250 April 9, 2031 Term SOFR rate plus an applicable margin ranging from 1.25% to 1.50%, or an alternate base rate plus an applicable margin ranging from 0.25% to 0.50%, depending on the borrowing capacity under the Senior ABL Credit Facility. Interest Rate Swap 700 July 27, 2026 Effective fixed rate of 2.693%, based upon the 0.693% fixed rate plus an applicable margin of 2.00% associated with the Senior Term Loan Credit Facility. Interest Rate Swap(2) 750 July 27, 2028 Effective fixed rate of 5.913%, based upon the 3.913% fixed rate plus an applicable margin of 2.00% associated with the Senior Term Loan Credit Facility. (1)Aggregate amount of commitments under the asset-based revolving credit facility of $1,250 million overall, subject to borrowing base availability. There were no outstanding borrowings under the Senior ABL Credit Facility as of May 3, 2026. (2)Interest rate swap entered into on February 12, 2024 for a notional amount of $750 million. The notional amount increases to $1,500 million on July 27, 2026 through the instrument maturity on July 27, 2028. Refer to Note 6 to the unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q for a description of our debt obligations and the timing of future principal and interest payments including impacts from our interest rate swap. Purchase Obligations As of May 3, 2026, the Company had agreements in place with various suppliers to purchase goods and services, primarily inventory, in the aggregate amount of $1,325 million. These purchase obligations are generally cancellable, but the Company foresees no intent to cancel. Payments are generally expected to be made during fiscal 2026 and the fiscal year ended January 31, 2027. Non-GAAP Financial Measures In addition to providing results that are determined in accordance with GAAP, we present EBITDA, Adjusted EBITDA and Adjusted Diluted Earnings Per Share, all of which are non-GAAP financial measures. These measures are not considered measures of financial performance or liquidity under GAAP and the items excluded therefrom are significant components in understanding and assessing our financial performance or liquidity. These measures should not be considered in isolation or as alternatives to GAAP measures such as net income, net income attributable to Core & Main, Inc. or diluted earnings per share, as applicable, cash provided by or used in operating, investing or financing activities or other financial statement data presented in our financial statements as an indicator of our financial performance or liquidity. We define EBITDA as net income, or net income attributable to Core & Main, Inc., as applicable, adjusted for non-controlling interests, depreciation and amortization, provision for income taxes and interest expense. We define Adjusted EBITDA as EBITDA as further adjusted for certain items management believes are not reflective of the underlying operations of our business, including but not limited to (a) loss on debt modification and extinguishment, (b) equity-based compensation, (c) expenses associated with the initial public offering and subsequent secondary offerings, (d) expenses associated with acquisition and other activities and (e) other income. Net income attributable to Core & Main, Inc. is the most directly comparable GAAP measure to EBITDA and Adjusted EBITDA. 28 We define Adjusted Diluted Earnings Per Share as diluted earnings per share adjusted for (a) amortization of intangible assets, (b) loss on debt modification and extinguishment, (c) equity-based compensation, (d) expenses associated with acquisition and other activities, (e) expenses associated with the initial public offering and subsequent secondary offerings and (f) other income and (g) the tax impact of these Non-GAAP adjustments, divided by the weighted-average number of shares of our common stock outstanding on a fully diluted basis for the applicable period. Diluted earnings per share is the most directly comparable GAAP measure to Adjusted Diluted Earnings Per Share. We use EBITDA, Adjusted EBITDA and Adjusted Diluted Earnings Per Share to assess the operating results and effectiveness and efficiency of our business. Adjusted EBITDA and Adjusted Diluted Earnings Per Share include amounts otherwise attributable to non-controlling interests as we manage the consolidated Company and evaluate operating performance in a similar manner. We present these non-GAAP financial measures because we believe that investors consider them to be important supplemental measures of performance, and we believe that these measures are frequently used by securities analysts, investors and other interested parties in the evaluation of companies in our industry. Non-GAAP financial measures as reported by us may not be comparable to similarly titled metrics reported by other companies and may not be calculated in the same manner. These measures have limitations as analytical tools, and investors should not consider them in isolation or as substitutes for analysis of our results as reported under GAAP. For example, EBITDA and Adjusted EBITDA: • do not reflect the significant interest expense or the cash requirements necessary to service interest or principal payments on debt; • do not reflect income tax expenses, the cash requirements to pay taxes or related distributions; • do not reflect cash requirements to replace in the future any assets being depreciated and amortized; and • exclude certain transactions or expenses as allowed by the various agreements governing our indebtedness. In evaluating Adjusted EBITDA and Adjusted Diluted Earning Per Share, you should be aware that, in the future, we may incur expenses similar to those eliminated in this presentation. The following table sets forth a reconciliation of net income or net income attributable to Core & Main, Inc. to EBITDA and Adjusted EBITDA for the periods presented: Three Months Ended May 3, 2026 May 4, 2025 Net income attributable to Core & Main, Inc. $ 108 $ 100 Plus: net income attributable to non-controlling interest 5 5 Net income 113 105 Depreciation and amortization (1) 46 47 Provision for income taxes 37 36 Interest expense 27 30 EBITDA $ 223 $ 218 Equity-based compensation 3 5 Acquisition and other expenses (2) — 1 Adjusted EBITDA $ 226 $ 224 (1)Includes depreciation of certain assets which are reflected in “cost of sales” in our Statement of Operations. (2)Represents expenses associated with acquisition and other activities, including transaction costs, post-acquisition employee retention bonuses, severance payments and expense recognition of purchase accounting fair value adjustments (excluding amortization). 29 The following table sets forth a reconciliation of diluted earnings per share to Adjusted Diluted Earnings Per Share for the periods presented: Three Months Ended May 3, 2026 May 4, 2025 Diluted earnings per share $ 0.57 $ 0.52 Amortization of intangible assets 0.18 0.18 Equity-based compensation 0.02 0.03 Acquisition and other expenses (1) — 0.01 Income tax impact of adjustments (2) (0.05) (0.06) Adjusted Diluted Earnings Per Share $ 0.72 $ 0.68 (1)Represents expenses associated with acquisition and other activities, including transaction costs, post-acquisition employee retention bonuses, severance payments and expense recognition of purchase accounting fair value adjustments (excluding amortization). (2)Represents the tax impact on the above non-GAAP adjustments. Recently Issued and Adopted Accounting Pronouncements and Accounting Pronouncements Issued But Not Yet Adopted Refer to Note 2 to the unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q. Critical Accounting Policies and Estimates A summary of our significant accounting policies are discussed in Note 2 to the audited consolidated financial statements in our 2025 Annual Report on Form 10-K. The preparation of condensed consolidated financial statements requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Our estimates and assumptions are based on historical experiences and changes in the business environment. However, actual results may differ from estimates under different conditions, sometimes materially. Critical accounting policies and estimates are defined as those that are both most important to the portrayal of our financial condition and results of operations and require management judgment. There have been no significant changes to these policies which have had a material impact on the Company’s interim unaudited condensed consolidated financial statements and related notes during the three months ended May 3, 2026. 30 Off-Balance Sheet Arrangements We had no off-balance sheet arrangements as of May 3, 2026.