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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K ( Mark One ) ☑ ☐ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from Pennsylvania to Commission file number : 001-36706 CB FINANCIAL SERVICES , INC . ( Exact name of registrant as specified in its charter ) ( State or other jurisdiction of incorporation or organization ) 100 North Market Street , Carmichaels , Pennsylvania ( Address of principal executive offices ) 51-0534721 ( IRS Employer Identification Number ) Registrant's telephone number , including area code : ( 724 ) 966-5041 Securities registered pursuant to Section 12 ( b ) of the Act : Common stock , par value $ 0.4167 per share ( Title of each class ) CBFV ( Trading symbol ) 15320 ( Zip Code ) The Nasdaq Stock Market , LLC ( Name of each exchange on which registered ) Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes □ No ☑ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Yes □ No ☑ Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes ☑ No □ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( §232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit such files ) . Yes > No □ Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of “ large accelerated filer , " " accelerated filer , ” “ smaller reporting company " and " emerging growth company ” in Rule 12b - 2 of the Exchange Act . Large accelerated filer □ Non - accelerated Filer > Emerging growth company □ Accelerated Filer Smaller reporting company ☑ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report □ Indicate by check mark whether the registrant is a shell company ( as defined by Rule 12b - 2 of the Act ) . Yes □ No ☑ The aggregate market value of the voting and non - voting common equity held by non - affiliates of the registrant , computed by reference to the last sale price on June 30 , 2020 , as reported by the Nasdaq Global Market , was approximately $ 108.5 million . As of March 17 , 2021 , the number of shares outstanding of the Registrant's Common Stock was 5,434,374 . DOCUMENTS INCORPORATED BY REFERENCE Proxy Statement for the 2021 Annual Meeting of Stockholders of the Registrant ( Part III )