Form SCHEDULE 13D/A BEST BUY CO INC Filed by: SCHULZE RICHARD M

Item 4 is hereby amended and supplemented to add the following: On May 29, 2026, Mr. Schulze sold Shares into the open market. The Shares were sold as part of Mr. Schulze's personal long-term strategy for asset diversification and liquidity. Effective May 29, 2026, Mr. Schulze adopted a pre-arranged trading plan to sell Shares owned by the Reporting Persons in the open market (the "May 2026 Plan"). The Shares to be sold pursuant to the May 2026 Plan are part of Mr. Schulze's personal estate planning. The Shares to be sold are subject to the provisions of the May 2026 Plan until the May 2026 Plan expires, which is expected to occur in June 2027.

Item 5 is hereby amended as follows: The first two paragraphs of Item 5(a) are hereby amended and restated as follows: (a) The percentages used herein are calculated based upon 210,695,187 Shares outstanding as of April 13, 2026, as reported by the Company in its most recent Schedule 14A filed with the SEC on April 30, 2026. As of the date of this Amendment No. 15, the Reporting Persons beneficially owned in the aggregate 12,859,275 Shares, constituting approximately 6.1% of the outstanding Shares. As of the date of this Amendment No. 15, the Reporting Persons may be deemed to have direct beneficial ownership of the Shares as follows: Item 5(a)(i) is hereby amended and restated in its entirety as follows: (i) Mr. Schulze, individually and as trustee to the various trusts listed in Item 2(i), beneficially owns 12,859,275 Shares, constituting approximately 6.1% of the outstanding Shares. Mr. Schulze disclaims beneficial ownership of such Shares for all other purposes. This figure excludes (a) 7,000,679 Shares held personally by his spouse and in trusts for the benefit of Mr. Schulze's spouse, Mr. Schulze's children and grandchildren, and the children of Mr. Schulze's spouse, and (b) 172,831 Shares in the Richard M Schulze Qualified Terminable Interest Property Marital Trust, in each case as to which Mr. Schulze disclaims beneficial ownership. Item 5(a)(iii) is hereby amended and restated in its entirety as follows: (iii) Olympus B may be deemed to own beneficially (as that term is defined in Rule 13-d under the Securities Exchange Act of 1934) 702,903 Shares, constituting approximately 0.3% of the outstanding Shares. Olympus B disclaims beneficial ownership of such Shares for all other purposes. Item 5(a)(v) is hereby amended and restated in its entirety as follows: (v) The Family Foundation may be deemed to own beneficially (as that term is defined in Rule 13-d under the Securities Exchange Act of 1934) 0 Shares.

Item 5(b) is hereby amended and restated in its entirety as follows: (b) Mr. Schulze has the sole power to vote or direct the vote of and to dispose of or direct the disposition of 12,156,372 Shares. Mr. Schulze has shared power to vote or direct the vote of and to dispose of or direct the disposition of 702,903 Shares. Olympus B may be deemed to share with Mr. Schulze the power to vote or direct the vote of and to dispose of or direct the disposition of 702,903 Shares.

Item 5(c) is hereby amended and restated in its entirety as follows: (c) Mr. Schulze made the following transactions in the Shares that were effected during the past sixty days. ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Identity Transaction Date Number of Price Per Where and How Type Shares Shares the Transaction Was Effected ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Richard M Change in 03/30/2026 1 (3,689 ) N/A Periodic adjustment Schulze (via Best Buy in the amount of 401(k)) 401(k) equivalent shares under the employee retirement savings account (401(k)) ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Richard M Gift to third 04/15/2026 (20,975) N/A N/A Schulze Party ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------- Richard M Sale 05/29/2026 (133,778) $75.09 2 Open Market Schulze ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Richard M Sale 05/29/2026 (191,572) $75.96 3 Open Market Schulze ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Richard M Sale 05/29/2026 (147,868) $76.96 4 Open Market Schulze ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Richard M Sale 05/29/2026 (27,132) $77.69 5 Open Market Schulze ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Richard M Change in 05/28/2026 6 976 N/A Periodic adjustment Schulze (via Best Buy in the amount of 401(k)) 401(k) equivalent shares under the employee retirement savings account (401(k)) ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ Richard M Gift from 06/01/2026 350 N/A N/A Schulze Spouse ------------------- ----------------- ------------------ ----------------- ----------------- ------------------------------ 1. This adjustment to the equity in Mr. Schulze's 401(k) account reflects the amount of equivalent shares added to the account as of March 30, 2026, ahead of the filing of the April 16, 2026 Form 4. An equivalent number of Shares held in the stock fund is calculated and included in quarterly statements by dividing its closing balance by the closing price of the Company's common stock as reported by the New York Stock Exchange on the last trading date of the statement period. Equivalent shares are approximate, since in this Fund participants own units of a Fund that primarily invest in stock and a very small portion of cash. 2. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $74.34 to $75.33, inclusive. The reporting person undertakes to provide to the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. 3. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.34 to $76.32, inclusive. The reporting person undertakes to provide to the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. 4. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.53 to $77.52, inclusive. The reporting person undertakes to provide to the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. 5. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $77.53 to $78.05, inclusive. The reporting person undertakes to provide to the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. 6. This adjustment to the equity in Mr. Schulze's 401(k) account reflects the amount of equivalent shares added to the account as of May 28, 2026, ahead of the filing of the June 2, 2026 Form 4. An equivalent number of Shares held in the stock fund is calculated and included in quarterly statements by dividing its closing balance by the closing price of the Company's common stock as reported by the New York Stock Exchange on the last trading date of the statement period. Equivalent shares are approximate, since in this Fund participants own units of a Fund that primarily invest in stock and a very small portion of cash.

Item 6 is hereby amended and supplemented to add the following: Effective May 29, 2026, Mr. Schulze adopted the May 2026 Plan, a discussion of which is contained in Item 4 hereof and incorporated into this Item 6 by reference.

Exhibit A: Joint Filing Agreement, dated June 2, 2026, among the Reporting Persons