1、UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549FORM 10-Kx ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31,2018OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACTOF 1934Commissi
2、on File Number 001-36720Upland Software,Inc.(Exact name of registrant as specified in its charter)Delaware27-2992077(State or other jurisdiction ofincorporation or organization)(I.R.S.EmployerIdentification Number)401 Congress Ave.,Suite 1850Austin,Texas 78701(512)960-1010(Address,including zip code
3、,and telephone number,including area code,of registrants principal executive offices)Securities registered pursuant to Section 12(b)of the Act:Title of each className of each exchange on which registeredCommonStock,parvalue$0.0001pershareTheNasdaqGlobalMarketSecurities registered pursuant to Section
4、 12(g)of the Act:NoneIndicatebycheckmarkiftheregistrantisawell-knownseasonedissuer,asdefinedinRule405oftheSecuritiesAct.YesNoxIndicatebycheckmarkiftheregistrantisnotrequiredtofilereportspursuanttoSection13orSection15(d)oftheAct.YesNoxIndicatebycheckmarkwhethertheregistrant(1)hasfiledallreportsrequir
5、edtobefiledbySection13or15(d)oftheSecuritiesExchangeActof1934duringthepreceding12months(orforsuchshorterperiodthattheregistrantwasrequiredtofilesuchreports),and(2)hasbeensubjecttosuchfilingrequirementsforthepast90days.YesxNoIndicatebycheckmarkwhethertheregistranthassubmittedelectronicallyandpostedon
6、itscorporateWebsite,ifany,everyInteractiveDataFilerequiredtobesubmittedandpostedpursuanttoRule405ofRegulationS-T(232.405ofthischapter)duringthepreceding12months(orforsuchshorterperiodthattheregistrantwasrequiredtosubmitandpostsuchfiles).YesxNoIndicatebycheckmarkifdisclosureofdelinquentfilerspursuant