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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 26 , 2020 . OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934. For the transition period of Commission File No .: 0-22684 to UFP INDUSTRIES , INC . ( Exact name of registrant as specified in its charter ) Michigan ( State or other jurisdiction of incorporation or organization ) 2801 East Beltline , N.E. , Grand Rapids , Michigan ( Address of principal executive offices ) Registrant's telephone number , including area code ( 616 ) 364-6161 Securities registered pursuant to Section 12 ( b ) of the Act : 38-1465835 ( I.R.S. Employer Identification No. ) Trading Symbol UFPI No | Title of Each Class Common Stock , $ 1 par value Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes 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 □ 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 □ Non - accelerated filer 49525 ( Zip Code ) Name of Each Exchange on Which Registered The NASDAQ Global Select Market 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 Accelerated filer 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 a new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Exhibit Index located on page E - 16 . No □ Smaller Reporting Company 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 . < No " Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Act ) . Yes The aggregate market value of the common stock held by non - affiliates of the registrant ( i.e. excluding shares held by executive officers , directors , and control persons as defined in Rule 405 , 17 CFR 230.405 ) on June 27 , 2020 was $ 2,635,631,630 computed at the closing price of $ 45.72 on that date . As of January 30 , 2021 , 61,207,924 shares of the registrant's common stock , $ 1 par value , were outstanding . Documents incorporated by reference : ( 1 ) Certain portions of the registrant's Annual Report to Shareholders for the fiscal year ended December 26 , 2020 are incorporated by reference into Part I and II of this Report . ( 2 ) Certain portions of the registrant's Proxy Statement for its 2021 Annual Meeting of Shareholders are incorporated by reference into Part III of this Report .