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UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , DC 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 to Pennsylvania ( State or Other Jurisdiction of Incorporation or Organization ) 349 Union Street Millersburg , Pennsylvania ( Address of Principal Executive Offices ) Commission file number 1-13677 MID PENN BANCORP , INC . ( Exact Name of Registrant as Specified in its Charter ) 25-1666413 ( I.R.S. Employer Identification Number ) Registrant's telephone number , including area code 1.866.642.7736 Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock , $ 1.00 par value per share Trading Symbol ( s ) MPB 17061 ( Zip Code ) Name of each exchange on which registered The NASDAQ Stock Market LLC Securities registered pursuant to Section 12 ( g ) of the Act : None . Yes ☐ No ☑ Yes □ No ☑ Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . 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 definition 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 Accelerated Filer ☐ Smaller Reporting Company Emerging Growth 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 in Rule 12b - 2 of the Act ) . Yes □ No ☑ The aggregate market value of the registrant's voting and non - voting common equity held by non - affiliates computed by reference to the closing price of the common equity of $ 18.43 per share , as reported by The NASDAQ Stock Market LLC ( " NASDAQ ” ) , on June 30 , 2020 , the last business day of the registrant's most recently completed second quarter was approximately $ 126,417,268 . As of March 1 , 2021 , the registrant had 8,413,383 shares of common stock outstanding , par value $ 1.00 per share . DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant's definitive proxy statement to be used in connection with the 2021 Annual Meeting of Shareholders is incorporated herein by reference in partial response to Part III , hereof .