X0508 4 2025-12-10 0001085913 FARMERS & MERCHANTS BANCORP FMCB 0001977329 Weubbe John W 121 W PINE STREET LODI CA 95240 false true false false Executive Vice President 0 Common Stock 774 D Common Stock 2025-12-10 4 G false 625 0 D 625 I Held in family trust Includes, as previously reported, grants on February 3, 2025 to Reporting Person of a RSA of 774 shares of Issuer's common stock, which will vest ratably over a two (2) year term. Shares previously held indirectly through the Company's Non-Qualified Executive Retirement Plans, which, in connection with the liquidation and distribution of the Plans, were distributed by the Trustees of the Plan to Reporting Person's family trust on December 10, 2025, for no consideration. The Reporting Person is a trustee of the trust, and the Reporting Person and member of his immediate family are the sole beneficiaries of the trust. The Reporting Person remains the beneficial owner of the securities held by the trust. Weubbe John W 2025-12-10