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X 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 Virginia Commission File Number 1-10258 TREDEGAR CORPORATION ( Exact name of registrant as specified in its charter ) ( State or other jurisdiction of incorporation or organization ) 1100 Boulders Parkway , Richmond , Virginia ( Address of principal executive offices ) 54-1497771 ( I.R.S. Employer Identification No. ) 23225 ( Zip Code ) Registrant's telephone number , including area code : 804-330-1000 Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class Common Stock Trading Symbol TG Name of each exchange on which registered New York Stock Exchange Securities registered pursuant to Section 12 ( g ) of the Act : None ( Title of class ) Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes ¨ No x 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 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 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 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 . x Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes No x Aggregate market value of voting and non - voting common equity held by non - affiliates of the registrant as of June 30 , 2020 ( the last business day of the registrant's most recently completed second fiscal quarter ) : $ 406,328,122 * Number of shares of Common Stock outstanding as of March 12 , 2021 : 33,537,892 * In determining this figure , an aggregate of 7,133,634 shares of Common Stock beneficially owned by Floyd D. Gottwald , Jr. , John D. Gottwald , William M. Gottwald and the members of their immediate families has been excluded because the shares are deemed to be held by affiliates . The aggregate market value has been computed based on the closing price in the New York Stock Exchange on June 30 , 2020 . Documents Incorporated By Reference Portions of the Tredegar Corporation Proxy Statement for the 2021 Annual Meeting of Shareholders ( the " Proxy Statement " ) are incorporated by reference into Part III of this Form 10 - K .