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( Mark One ) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D. C. 20549 FORM 10 - K 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 Commission file number 001-11290 NATIONAL RETAIL PROPERTIES , INC . ( Exact name of registrant as specified in its charter ) Maryland ( State or other jurisdiction of incorporation or organization ) Title of each class : Common Stock , $ 0.01 par value Depositary Shares , each representing one - hundredth of a share of 5.200 % Series F Preferred Stock , $ 0.01 par value 450 South Orange Avenue , Suite 900 Orlando , Florida 32801 ( Address of principal executive offices , including zip code ) Registrant's telephone number , including area code : ( 407 ) 265-7348 Securities registered pursuant to Section 12 ( b ) of the Act : Accelerated filer Trading Symbol ( s ) NNN NNN / PF Securities registered pursuant to section 12 ( g ) of the Act : None ( Title of class ) 56-1431377 ( I.R.S. Employer Identification No. ) Name of exchange on which registered : New York Stock Exchange New York Stock Exchange Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes x 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 X 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 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 x 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 x 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 0 Non - 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 . 0 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 . X Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No x At June 30 , 2020 , the aggregate market value of voting and non - voting common stock held by non - affiliates of the registrant was $ 6,111,300,000 based upon the last reported sale price on the New York Stock Exchange on June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter . For purposes of this disclosure , shares of common stock held by each executive officer and director have been excluded in that such persons may be deemed to be