Farmers & Merchants Bancorp (the “Company”) has filed a Current Report on Form 8-K with the U.S. Securities and Exchange Commission dated October 21, 2026. The filing discloses that the Company released an Investor Presentation on that date.

The presentation, attached as Exhibit 99.1 to the filing, is intended to be used by management for ongoing investor communications and conferences. It includes updates regarding the Company’s financial position, business, and operations.

The filing indicates that the information furnished in the report, including the attached presentation, shall not be deemed “filed” for the purposes of the Securities Exchange Act of 1934 and is not to be incorporated by reference into any other filing.