X0508 4 2026-03-02 1 0000836147 MIDDLEFIELD BANC CORP MBCN 0002007936 Noblit Rebecca A 15985 EAST HIGH STREET MIDDLEFIELD OH 44062 1 EVP-Chief Credit Officer 0 Common Stock 2026-03-02 4 D 0 21427 D 0 D Disposed of pursuant to the Agreement and Plan of Merger, dated October 22, 2025 (the "Agreement"), by and between Middlefield Banc Corp. ("Middlefield") and Farmers National Banc Corp. ("Farmers"), pursuant when Middlefield merged with and into Farmers on March 2, 2026. /s/ Rebecca A. Noblit by Julie E. Shaw Power of Attorney 2026-03-02