2018 Guide to Effective Proxies

6 TH EDITION | GUIDE TO EFFECTIVE PROXIES 64 TEGNA, INC. TERADATA TWITTER, INC. UNUM GROUP Table of Contents 2017:AYEAROFTRANSFORMATION 1 PROPOSAL1—ELECTIONOFDIRECTORS 1 YourBoardofDirectors 1 BoardLeadershipStructure 2 TheBoard’sRoleinRiskOversight 2 DirectorIndependence 3 CompensationCommitteeInterlocksandInsider Participation;RelatedTransactions 3 CorporateGovernance 4 ShareholderEngagement 4 AnnualBoardPerformanceEvaluation 5 InformationAboutDirectors 5 CommitteesoftheBoardofDirectors 10 AuditCommittee 10 ExecutiveCommittee 10 ExecutiveCompensationCommittee 10 NominatingandPublicResponsibilityCommittee 11 CommitteeCharters 12 EthicsPolicy 12 ReportoftheAuditCommittee 12 PROPOSAL2—RATIFICATIONOFAPPOINTMENTOF INDEPENDENTREGISTEREDPUBLICACCOUNTING FIRM 15 EXECUTIVECOMPENSATION 16 CompensationDiscussionandAnalysis 16 ExecutiveSummary 16 OverviewofExecutiveCompensationProgram 22 HowtheCommitteeDeterminesNEOCompensation 23 ExecutiveCompensationCommitteeReport 41 SummaryCompensationTable 42 GrantsofPlan-basedAwards 44 AdditionalInformationRegardingtheSummary CompensationTableandtheGrantsofPlan-based AwardsTable 45 OutstandingEquityAwardsatFiscalYear-end 46 OptionExercisesandStockVested 47 PensionBenefits 49 Non-qualifiedDeferredCompensation 50 OtherPotentialPost-EmploymentPayments 51 CEOPayRatio 59 PROPOSAL3—APPROVAL,ONANADVISORYBASIS, OFTHECOMPENSATIONOFOURNAMEDEXECUTIVE OFFICERS 60 DIRECTORCOMPENSATION 61 OUTSTANDINGDIRECTOREQUITYAWARDSAT FISCALYEAR-END 62 EQUITYCOMPENSATIONPLANINFORMATION 63 SECURITIESBENEFICIALLYOWNEDBYDIRECTORS, EXECUTIVEOFFICERSANDPRINCIPAL SHAREHOLDERS 64 INVESTMENTINTEGNASTOCKBYDIRECTORSAND EXECUTIVEOFFICERS 65 COSTOFSOLICITINGPROXIES 66 GENERALINFORMATION 67 OTHER 71 Section16(a)BeneficialOwnershipReporting Compliance 71 IncorporationbyReference 71 TABLE OF CONTENTS ProxySummary ................................................................................................... 1 ElectionofDirectors(Item1onProxyCard) ...................................................................... 4 AdditionalInformationConcerningtheBoardofDirectors ........................................................ 11 CommitteesoftheBoard ......................................................................................... 17 RelatedPersonTransactions ...................................................................................... 21 CorporateSocialResponsibility ................................................................................... 22 StockOwnership .................................................................................................. 23 DirectorCompensation ........................................................................................... 25 BoardCompensationandHumanResourceCommitteeReportonExecutiveCompensation ..................... 27 CompensationDiscussionandAnalysis ........................................................................... 28 Section1:ExecutiveSummary 28 Section2:CompensationPhilosophyandGovernance 34 Section3:CoreCompensationProgram 35 Section4:CompensationConsultantandPeerGroup 42 Section5:SeveranceandChangeinControlBenefits 44 Section6:OtherCompensationPoliciesandPractices 46 Section7:TaxandAccountingConsiderations 47 CompensationTables ............................................................................................. 48 PotentialPaymentsUponTerminationorChangeinControl ...................................................... 54 CEOPayRatioDisclosure ......................................................................................... 61 Advisory(non-binding)VoteonExecutiveCompensation(Item2onProxyCard) ................................ 62 VoteonApprovaloftheTeradataEmployeeStockPurchasePlan,asAmendedandRestated (Item3onProxyCard) ........................................................................................... 64 Directors’ProposaltoRatifytheAppointmentofIndependentRegisteredPublicAccountingFirmfor2018 (Item4onProxyCard) ........................................................................................... 68 BoardAuditCommitteeReport ................................................................................... 69 FeesPaidtoIndependentRegisteredPublicAccountingFirm .................................................... 70 OtherMatters ..................................................................................................... 72 HouseholdingofProxyMaterials .................................................................................. 72 AdditionalInformation ............................................................................................ 73 OtherGeneralInformation ........................................................................................ 75 Appendix ......................................................................................................... A-1 i TABLE OF CONTENTS NOTICEOF2018ANNUALMEETING 5 CompensationProgramStructure PROXYSUMMARY 6 andCommitteeDecisions 50 PerformanceHighlights 6 IndividualPerformanceAssessments 55 CapitalGenerationforShareholders 8 CompanyPerformanceTargets 58 TotalShareholderReturn 9 CompensationDecisions 63 2017Say-on-PayVoteandShareholder SeveranceandChangeinControlArrangements 72 Outreach 10 CompensationPoliciesandPractices 73 KeyCorporateGovernanceandExecutive REPORTOFTHEHUMANCAPITALCOMMITTEE 75 CompensationPractices 11 COMPENSATIONTABLES 76 VotingItems 12 2017SummaryCompensationTable 76 CORPORATEGOVERNANCE 13 2017GrantsofPlan-BasedAwards 79 BoardOverview 13 2017OutstandingEquityAwardsatFiscal BoardEvaluationProcess 16 Year-End 80 ProcessforSelectingandNominatingDirectors 17 VestingScheduleforUnvestedRestricted INFORMATIONABOUTTHEBOARDOFDIRECTORS 19 StockUnits 81 DirectorNominees 19 2017OptionExercisesandStockVested 81 AdditionalCurrentDirector-Retiringatthe POST-EMPLOYMENTCOMPENSATION 82 2018AnnualMeeting 24 PensionBenefits 82 SummaryofDirectorQualificationsandExperience 25 Non-QualifiedDeferredCompensation 85 DirectorIndependence 26 OtherPost-EmploymentPayments 86 DirectorCompensation 26 CEOPAYRATIO 92 BOARDANDCOMMITTEEGOVERNANCE 30 OWNERSHIPOFCOMPANYSECURITIES 93 CorporateGovernanceGuidelines 30 SecurityOwnershipofCertainShareholders 94 BoardLeadershipStructure 30 Section16(a)-BeneficialOwnership BoardMeetingsandAttendance 31 ReportingCompliance 95 CommitteesoftheBoard 32 ITEMSTOBEVOTEDON 96 LimitsonBoardandAuditCommitteeService 34 ElectionofDirectors 96 TheBoard'sRoleinRiskOversight 34 AdvisoryVotetoApproveExecutive DirectorRetirementPolicy 35 Compensation 96 CompensationCommitteeInterlocks RatificationofAppointmentofIndependent andInsiderParticipation 36 RegisteredPublicAccountingFirm 97 RelatedPartyTransactionsandPolicy 36 ApprovalofanAmendedandRestatedCertificate CodesofConductandEthics 37 ofIncorporation,IncludingtheEliminationof OTHERGOVERNANCEMATTERS 38 SupermajorityVotingRequirements 98 ShareholderEngagement 38 ABOUTTHE2018ANNUALMEETING 100 CorporateSocialResponsibility 38 ADDITIONALINFORMATION 104 REPORTOFTHEAUDITCOMMITTEE 41 APPENDIXA 107 COMPENSATIONDISCUSSIONANDANALYSIS 44 ReconciliationofNon-GAAPFinancialMeasures 107 BusinessandPerformanceReview 44 APPENDIXB 113 ExecutiveCompensation 49 AmendedandRestatedCertificateofIncorporation 113 KeyPractices 49 2017Say-on-PayVoteandShareholder Outreach 49 Wearefurnishingproxymaterials,includingthisproxystatement,inconnectionwiththesolicitationofproxiesonbehalfoftheBoardof Directors,tobevotedatthe2018AnnualMeetingofShareholdersofUnumGroupandatanyadjournmentorpostponementthereof. Our proxymaterialsarefirstbeingmailedandmadeavailableelectronicallytoshareholdersonoraboutApril12,2018. 2018PROXYSTATEMENT 3 TABLE OF CONTENTS PAGE QUESTIONS AND ANSWERS ABOUT THE PROXY MATERIALS AND OUR ANNUAL MEETING 2 BOARD OF DIRECTORS AND CORPORATE GOVERNANCE 10 ConsiderationsinEvaluatingDirectorNominees 11 NomineesforDirector 14 ContinuingDirectors 16 DirectorIndependence 18 BoardLeadershipStructureandRoleofOurLeadIndependentDirector 19 BoardMeetingsandCommittees 20 CompensationCommitteeInterlocksandInsiderParticipation 22 StockholderRecommendationsandNominationstotheBoardofDirectors 22 CommunicationswiththeBoardofDirectors 23 CorporateGovernanceOverview 23 CorporateGovernanceGuidelinesandCodeofBusinessConductandEthics 26 RiskManagement 26 ManagementSuccessionPlanning 27 DirectorCompensation 28 PROPOSAL NO. 1 ELECTION OF DIRECTORS 31 Nominees 31 VoteRequired 31 PROPOSAL NO. 2 ADVISORY VOTE ON NAMED EXECUTIVE OFFICER COMPENSATION 33 VoteRequired 33 PROPOSAL NO. 3 RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 34 FeesPaidtotheIndependentRegisteredPublicAccountingFirm 34 AuditorIndependence 34 AuditCommitteePolicyonPre-ApprovalofAuditandPermissibleNon-AuditServicesofIndependent RegisteredPublicAccountingFirm 34 VoteRequired 35 STOCKHOLDER PROPOSALS 36 TWITTER,INC./2018ProxyStatement i Total of 02 pages in section