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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 to For the transition period from Commission file number 001-15451 Delaware ( State or Other Jurisdiction of Incorporation or Organization ) 55 Glenlake Parkway , N.E. Atlanta , Georgia 30328 ( Address of Principal Executive Offices ) Title of Each Class Class B common stock , par value $ .01 per 0.375 % Senior Notes due 2023 1.625 % Senior Notes due 2025 1 % Senior Notes due 2028 1.500 % Senior Notes due 2032 United Parcel Service , Inc. ( Exact name of registrant as specified in its charter ) ( Zip Code ) share ups ( 404 ) 828-6000 ( Registrant's telephone number , including area code ) Securities registered pursuant to Section 12 ( b ) of the Act : Trading Symbol UPS UPS23A UPS25 UPS28 UPS32 Securities registered pursuant to Section 12 ( g ) of the Act : Class A common stock , par value $ .01 per share 58-2480149 ( I.R.S. Employer Identification No. ) Name of Each Exchange on Which Registered New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange ( Title of Class ) No X 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 Exchange 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 filin quirements 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 ( Section 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 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 X Accelerated filer · 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 . 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 No x Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes The aggregate market value of the class B common stock held by non - affiliates of the registrant was $ 78,510,244,191 as of June 30 , 2020. The registrant's class A common stock is not listed on a national securities exchange or traded in an organized over - the - counter market , but each share of the registrant's class A common stock is convertible into one share of the registrant's class B common stock . As of February 5 , 2021 , there were 147,531,933 outstanding shares of class A common stock and 719,506,596 outstanding shares of class B common stock . DOCUMENTS INCORPORATED BY REFERENCE Portions of the registrant's definitive proxy statement for its annual meeting of shareowners scheduled for May 13 , 2021 are incorporated by reference into Part III of this report .