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Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 FORM 10 - K For the fiscal year ended December 31 , 2020 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 Title of each class Common Stock , par value $ 0.01 Preferred Stock Purchase Rights OR For the transition period from Delaware ( State or other jurisdiction of incorporation or organization ) 6210 Ardrey Kell Road , Suite 600 Charlotte , North Carolina ( Address of principal executive offices ) Commission file number 000-23486 NN NN , Inc. ( Exact name of registrant as specified in its charter ) 62-1096725 ( I.R.S. Employer Identification Number ) ( 980 ) 264-4300 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading symbol NNBR 28277 ( Zip Code ) Name of each exchange on which registered The Nasdaq Stock Market LLC The Nasdaq Stock Market LLC Securities registered pursuant to Section 12 ( g ) of the Act : None