1、TableofContentsUNITEDSTATESSECURITIESANDEXCHANGECOMMISSIONWASHINGTON,D.C.20549FORM10-K(MarkOne)ANNUALREPORTPURSUANTTOSECTION13OR15(d)OFTHESECURITIESEXCHANGEACTOF1934ForthefiscalyearendedDecember31,2021ORTRANSITIONREPORTPURSUANTTOSECTION13OR15(d)OFTHESECURITIESEXCHANGEACTOF1934Forthetransitionperiodf
2、rom_to_CommissionFileNumber1-6075UNIONPACIFICCORPORATION(Exactnameofregistrantasspecifiedinitscharter)Utah13-2626465(Stateorotherjurisdictionof(I.R.S.Employerincorporationororganization)IdentificationNo.)1400DouglasStreet,Omaha,Nebraska(Addressofprincipalexecutiveoffices)68179(ZipCode)(402)544-5000(
3、Registrantstelephonenumber,includingareacode)SecuritiesregisteredpursuanttoSection12(b)oftheAct:TitleofeachClassTradingSymbolNameofeachexchangeonwhichregisteredCommonStock(ParValue$2.50pershare)UNPNewYorkStockExchangeIndicatebycheckmarkiftheregistrantisawell-knownseasonedissuer,asdefinedinRule405oft
4、heSecuritiesAct.YesNoIndicatebycheckmarkiftheregistrantisnotrequiredtofilereportspursuanttoSection13orSection15(d)oftheAct.YesNoIndicatebycheckmarkwhethertheregistrant(1)hasfiledallreportsrequiredtobefiledbySection13or15(d)oftheSecuritiesExchangeActof1934duringthepreceding12months(orforsuchshorterpe
5、riodthattheregistrantwasrequiredtofilesuchreports),and(2)hasbeensubjecttosuchfilingrequirementsforthepast90days.YesNoIndicatebycheckmarkwhethertheregistranthassubmittedelectronicallyeveryInteractiveDataFilerequiredtobesubmittedpursuanttoRule405ofRegulationS-T(232.405ofthischapter)duringthepreceding1
6、2months(orforsuchshorterperiodthattheregistrantwasrequiredtosubmitsuchfiles).YesNoIndicatebycheckmarkwhethertheregistrantisalargeacceleratedfiler,anacceleratedfiler,anon-acceleratedfiler,asmallerreportingcompany,oranemerginggrowthcompany.Seethedefinitionsof“largeacceleratedfiler,”“acceleratedfiler,”