X0508 4 2025-12-10 0001085913 FARMERS & MERCHANTS BANCORP FMCB 0001733836 Green Steven K. 111 W. PINE ST. LODI CA 95240 true false false false 0 Common stock 2025-12-10 4 G false 362 0 D 547 I Held in family trust 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. 185 additional shares of the Issuer's common stock held in Trust were previously reported as directly owned by the Reporting Person. Green Steven K. 2025-12-18