X0609 4 2026-09-14 0001494582 BOSTON OMAHA Corp BOC 0001689627 Keating Brendan Joseph false C/O BOSTON OMAHA CORPORATION 1601 DODGE STREET, SUITE 3300 OMAHA NE 68102 1 0 Class A common stock, par value $0.001 per share 2026-09-14 4 A 0 5252 13.71 A 5252 D Class A common stock, par value $0.001 per share 2026-09-15 4 S 0 100994 13.563 D 0 I See footnote 2 Class A common stock, par value $0.001 per share 50900 I See footnote 3 The Reporting Person was granted 5,252 shares of Class A common stock pursuant to the Boston Omaha Corporation 2022 Long-Term Incentive Plan for services as a member of the Board of Directors. The reported shares are directly owned by Rosecrest Trust, of which Brendan J. Keating is the Trustee. Mr. Keating sold these shares in order to provide equity to invest in commercial real estate, his primary business. The shares sold on September 15, 2026 were sold in multiple transactions at an average price of $13.5633 per share and at individual transaction prices ranging from $13.385 to $13.715 per share. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4. The shares are held in qualified retirement accounts account for the benefit of Mr. Keating. Mr. Keating could be deemed to have indirect beneficial ownership of the shares. /s/ Brendan J. Keating 2026-09-16