(Mark One) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended May 2, 2026 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromtoCommission File Number: 1-9595 BEST BUY CO., INC. 41-0907483 (I.R.S. Employer Identification No.) (612)291-1000(Registrant’s telephone number, including area code)N/A(Former name, former address and former fiscal year, if changed since last report)Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filingrequirements for the past 90 days.YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 ofRegulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit suchfiles).YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or anemerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growthcompany” in Rule 12b-2 of the Exchange Act. Smaller Reporting Company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any newor revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).YesNo The registrant had 210,767,126shares of common stock outstanding as of June3, 2026. FORM 10-Q FOR THE QUARTER ENDED MAY2, 2026 TABLE OF CONTENTS Part I — Financial Information3Item 1.Financial Statements3a)Condensed Consolidated Balance Sheets as ofMay 2, 2026,January 31, 2026, and May 3, 20253b)Condensed Consolidated Statements of Earnings for the three months endedMay 2, 2026, andMay 3, 20254c)Condensed Consolidated Statements of Comprehensive Income for the three months endedMay 2, 2026, andMay 3, 20255d)Condensed Consolidated Statements of Cash Flows for the three months endedMay 2, 2026, andMay 3,20256e)Condensed Consolidated Statements of Changes in Shareholders' Equity for the three months endedMay 2, 2026, andMay3,20257f)Notes to Condensed Consolidated Financial Statements8Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations16Item 3.Quantitative and Qualitative Disclosures About Market Risk25Item 4.Controls and Procedures26Part II — Other Information26Item 1.Legal Proceedings26Item 2.Unregistered Sales of Equity Securities and Use of Proceeds26Item 5.Other Information26Item 6.Exhibits27Signatures28 WEBSITE AND SOCIAL MEDIA DISCLOSURE We disclose information to the public concerning Best Buy, Best Buy’s products, content and services and other items through ourwebsites in order to achieve broad, non-exclusionary distribution of information to the public. Some of the information distributedthrough this channel may be considered material information. Investors and others are encouraged to review the information we makepublic in the locations below.* This list may be updated from time to time. •For information concerning Best Buy and its products, content and services, please visit: https://bestbuy.com.•For information provided to the investment community, including news releases, events and presentations, and filings with theSEC, please visit: https://investors.bestbuy.com.•For the latest information from Best Buy, including press releases, please visit: https://corporate.bestbuy.com/archive/. * These corporate websites, and the contents thereof, are not incorporated by reference into this Quarterly Report on Form 10-Q nordeemed filed with the SEC. Condensed Consolidated Balance Sheets$ in millions, except per share amounts (unaudited) $ and shares in millions, except per share amounts (unaudited) Three Months Ended Notes to Condensed Consolidated Financial Statements(unaudited) 1.Basis of Presentation Unless the context otherwise requires, the terms “Best Buy,” “we,” “us,” “our” and the “company” in these Notes to CondensedConsolidated Financial Statements refer to Best Buy Co., Inc. and, as applicable, its consolidated subsidiaries. In the opinion of management, the accompanying condensed consolidated financial statements contain all adjustments necessary for afair presentation as prescribed by accounting principles generally accepted in the U.S. (“GAAP”). All adjustments were comprised