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  <xsd:element id="gmab_BoardOfDirectorDeirdreP.ConnellyMember" name="BoardOfDirectorDeirdreP.ConnellyMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_BoardOfDirectorPeterStormKristensenMember" name="BoardOfDirectorPeterStormKristensenMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_BoardOfDirectorMijkeZachariasseMember" name="BoardOfDirectorMijkeZachariasseMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ExecutiveManagementMember" name="ExecutiveManagementMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ExecutiveManagerJanVanDeWinkelMember" name="ExecutiveManagerJanVanDeWinkelMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ExecutiveManagerJudithKlimovskyMember" name="ExecutiveManagerJudithKlimovskyMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsRestrictedStockUnitsRSUsMember" name="IfrsRestrictedStockUnitsRSUsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsGrantedDuringPeriod" name="NumberOfWarrantsGrantedDuringPeriod" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsExercisedDuringPeriod" name="NumberOfWarrantsExercisedDuringPeriod" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_MarketableSecuritiesMember" name="MarketableSecuritiesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_TripleaRatingMember" name="TripleaRatingMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_PercentageOfMarketableSecurities" name="PercentageOfMarketableSecurities" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_DisclosureOfWarrantsActivityTableTextBlock" name="DisclosureOfWarrantsActivityTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_RestrictedStockUnitsRSUsMember" name="RestrictedStockUnitsRSUsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_StockRepurchaseFirstAuthorizationMember" name="StockRepurchaseFirstAuthorizationMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_StockRepurchaseSecondAuthorizationMember" name="StockRepurchaseSecondAuthorizationMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" name="IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ShareBasedArrangementNumberOfSharesPerRsu" name="ShareBasedArrangementNumberOfSharesPerRsu" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ShareBasedArrangementNumberOfAuthorization" name="ShareBasedArrangementNumberOfAuthorization" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfSharesAuthorizedToBeRepurchased" name="NumberOfSharesAuthorizedToBeRepurchased" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_SharesRepurchasedNominalValue" name="SharesRepurchasedNominalValue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="gmab_ShareRepurchasedDuringPeriodShares" name="ShareRepurchasedDuringPeriodShares" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_SharesAvailableForRepurchase" name="SharesAvailableForRepurchase" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_TreasurySharesAcquired" name="TreasurySharesAcquired" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_PercentageOfShareCapitalRepurchased" name="PercentageOfShareCapitalRepurchased" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_Weightedaveragefairvalueofotherequityinstrumentsgrantedinsharebasedpaymentarrangement" name="Weightedaveragefairvalueofotherequityinstrumentsgrantedinsharebasedpaymentarrangement" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WarrantVestingPeriod" name="WarrantVestingPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsOutstanding" name="NumberOfWarrantsOutstanding" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfWarrantsGranted" name="WeightedAverageExercisePriceOfWarrantsGranted" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfWarrantsExercised" name="WeightedAverageExercisePriceOfWarrantsExercised" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_PercentageOfShareCapitalAttributedToExerciseOfWarrants" name="PercentageOfShareCapitalAttributedToExerciseOfWarrants" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfFairValueOfWarrants" name="WeightedAverageExercisePriceOfFairValueOfWarrants" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsSubsidiarySaleOfStockAxis" name="IfrsSubsidiarySaleOfStockAxis" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsSaleOfStockNameOfTransactionDomain" name="IfrsSaleOfStockNameOfTransactionDomain" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeTable" name="IfrsCollaborativeArrangementAndArrangementOtherThanCollaborativeTable" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_CollaborativeArrangementAndArrangementOtherThanCollaborativeLineItems" name="CollaborativeArrangementAndArrangementOtherThanCollaborativeLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsNumberOfReportingUnits" name="IfrsNumberOfReportingUnits" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_ScheduleOfSegmentDisclosuresInFinancialStatementsTableTextBlock" name="ScheduleOfSegmentDisclosuresInFinancialStatementsTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_DisclosureOfStaffCostTableTextBlock" name="DisclosureOfStaffCostTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_StaffCostAbstract" name="StaffCostAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" />
  <xsd:element id="gmab_StaffCostsAreIncludedInIncomeStatementAsFollowsAbstract" name="StaffCostsAreIncludedInIncomeStatementAsFollowsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" />
  <xsd:element id="gmab_StaffCostsIncludedInResearchAndDevelopmentExpense" name="StaffCostsIncludedInResearchAndDevelopmentExpense" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_NumberOfFullTimeEmployment" name="NumberOfFullTimeEmployment" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ExpensesOnGovernmentGrants" name="ExpensesOnGovernmentGrants" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_ValuationAssumptionsForWarrantsGrantedTableTextBlock" name="ValuationAssumptionsForWarrantsGrantedTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageFairValuePerWarrantOnGrantDate" name="WeightedAverageFairValuePerWarrantOnGrantDate" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageSharePriceWarrantsGranted" name="WeightedAverageSharePriceWarrantsGranted" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExercisePriceWarrantsGranted" name="WeightedAverageExercisePriceWarrantsGranted" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExpectedDividendYieldWarrantsGranted" name="WeightedAverageExpectedDividendYieldWarrantsGranted" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExpectedVolatilityWarrantsGranted" name="WeightedAverageExpectedVolatilityWarrantsGranted" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageRiskFreeInterestRateWarrantsGranted" name="WeightedAverageRiskFreeInterestRateWarrantsGranted" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExpectedLifeWarrantsGranted" name="WeightedAverageExpectedLifeWarrantsGranted" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageFairValueOfWarrantsGranted" name="WeightedAverageFairValueOfWarrantsGranted" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="gmab_DisclosureOfCorporateAndDeferredTaxTableTextBlock" name="DisclosureOfCorporateAndDeferredTaxTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ShareBasedInstrumentsMember" name="ShareBasedInstrumentsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_OperatingAssetsAndLiabilitiesAbstract" name="OperatingAssetsAndLiabilitiesAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_OperatingAssetsAndLiabilitiesTextBlock" name="OperatingAssetsAndLiabilitiesTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_EquipmentFurnitureAndFixturesMember" name="EquipmentFurnitureAndFixturesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_DepreciationOnDisposalPropertyPlantAndEquipment" name="DepreciationOnDisposalPropertyPlantAndEquipment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_DepreciationAmortizationAndImpairmentsIncludedInResearchAndDevelopmentExpenses" name="DepreciationAmortizationAndImpairmentsIncludedInResearchAndDevelopmentExpenses" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_DepreciationAmortizationAndImpairmentsIncludedInGeneralAndAdministrativeExpenses" name="DepreciationAmortizationAndImpairmentsIncludedInGeneralAndAdministrativeExpenses" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_DisclosureOfCashOutflowForLeasesTableTextBlock" name="DisclosureOfCashOutflowForLeasesTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_CollaborationAgreementsReceivables" name="CollaborationAgreementsReceivables" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="gmab_CollaborationAgreementsLiabilities" name="CollaborationAgreementsLiabilities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="gmab_DefinedContributionPlansPensionObligation" name="DefinedContributionPlansPensionObligation" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="gmab_ScheduleOfOtherInvestmentsTableTextBlock" name="ScheduleOfOtherInvestmentsTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_AverageNumberOfTreasurySharesOutstanding" name="AverageNumberOfTreasurySharesOutstanding" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_AverageNumberOfOrdinarySharesExcludingOutstanding" name="AverageNumberOfOrdinarySharesExcludingOutstanding" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_DisclosureOfMaturityProfileOfOurMarketableSecuritiesTableTextBlock" name="DisclosureOfMaturityProfileOfOurMarketableSecuritiesTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ScheduleOfPortfolioOfMarketableSecurities" name="ScheduleOfPortfolioOfMarketableSecurities" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_MarketableSecuritiesIncludingInterestReceivables" name="MarketableSecuritiesIncludingInterestReceivables" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="gmab_BankDepositsIncludingShortTermMarketableSecurities" name="BankDepositsIncludingShortTermMarketableSecurities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="gmab_PercentageOfRevenue" name="PercentageOfRevenue" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_PercentageOfMarketableSecuritiesInvested" name="PercentageOfMarketableSecuritiesInvested" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_PercentageOfPossibleIncreaseDecreaseInExchangeRate" name="PercentageOfPossibleIncreaseDecreaseInExchangeRate" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_PositiveFluctuationInForeignCurrencyExchangeRate" name="PositiveFluctuationInForeignCurrencyExchangeRate" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NegativeFluctuationInForeignCurrencyExchangeRate" name="NegativeFluctuationInForeignCurrencyExchangeRate" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ReceivablesExPrepaymentsMember" name="ReceivablesExPrepaymentsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsCashAndCashEquivalentsMember" name="IfrsCashAndCashEquivalentsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_OtherPayablesMember" name="OtherPayablesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_DkkPortfolioMember" name="DkkPortfolioMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_KingdomOfDenmarkBondsAndTreasuryBillsMember" name="KingdomOfDenmarkBondsAndTreasuryBillsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_DanishMortgageBackedSecuritiesMember" name="DanishMortgageBackedSecuritiesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_EurPortfolioMember" name="EurPortfolioMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_EuropeanGovernmentBondsAndTreasuryBillsMember" name="EuropeanGovernmentBondsAndTreasuryBillsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_UsdPortfolioMember" name="UsdPortfolioMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_UsGovernmentBondsAndTreasuryBillsMember" name="UsGovernmentBondsAndTreasuryBillsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_GbpPortfolioMember" name="GbpPortfolioMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_UkGovernmentBondsAndTreasuryBillsMember" name="UkGovernmentBondsAndTreasuryBillsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_OtherDisclosureAbstract" name="OtherDisclosureAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_OtherDisclosureTextBlock" name="OtherDisclosureTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_BasicBoardFee" name="BasicBoardFee" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_NumberOfVotes" name="NumberOfVotes" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_NumberOfWarrantsIssued" name="NumberOfWarrantsIssued" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_NumberOfWarrantsReissued" name="NumberOfWarrantsReissued" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_NumberOfWarrantsRemainingAvailableForIssue" name="NumberOfWarrantsRemainingAvailableForIssue" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_NumberOfWarrantsRemainingAvailableForReissue" name="NumberOfWarrantsRemainingAvailableForReissue" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_IfrsSaleOfStockAxis" name="IfrsSaleOfStockAxis" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsSaleOfStockDomain" name="IfrsSaleOfStockDomain" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfSharesAbstract" name="NumberOfSharesAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_TreasurySharesSold" name="TreasurySharesSold" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ShareCapitalAbstract" name="ShareCapitalAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ProportionOfShareCapitalAbstract" name="ProportionOfShareCapitalAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_PercentageOfShareCapitalOnPurchaseOfTreasuryShares" name="PercentageOfShareCapitalOnPurchaseOfTreasuryShares" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_PercentageOfShareCapitalOnSalleOfTreasuryShares" name="PercentageOfShareCapitalOnSalleOfTreasuryShares" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_CostOfTreasurySharesAbstract" name="CostOfTreasurySharesAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_TreasurySharesAtCost" name="TreasurySharesAtCost" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="gmab_PurchaseOfTreasurySharesAtCost" name="PurchaseOfTreasurySharesAtCost" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_CostOfTreasurySharesUsedForFundingProgram" name="CostOfTreasurySharesUsedForFundingProgram" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_NumberOfWarrantsSettled" name="NumberOfWarrantsSettled" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsTransferred" name="NumberOfWarrantsTransferred" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsCancelled" name="NumberOfWarrantsCancelled" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_FormerMemberOfBoardOfDirectorsAndEmployeesMember" name="FormerMemberOfBoardOfDirectorsAndEmployeesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_EmployeesMember" name="EmployeesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsExpired" name="NumberOfWarrantsExpired" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsTransfers" name="NumberOfWarrantsTransfers" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfWarrantsExercisable" name="NumberOfWarrantsExercisable" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_NumberOfWarrantsExercisableInMoney" name="NumberOfWarrantsExercisableInMoney" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfWarrantsOutstanding" name="WeightedAverageExercisePriceOfWarrantsOutstanding" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_WeightedAverageRemainingContractualLifeOfOutstandingWarrants" name="WeightedAverageRemainingContractualLifeOfOutstandingWarrants" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfWarrantsExpired" name="WeightedAverageExercisePriceOfWarrantsExpired" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfWarrantsCancelled" name="WeightedAverageExercisePriceOfWarrantsCancelled" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfWarrantsExercisable" name="WeightedAverageExercisePriceOfWarrantsExercisable" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_WeightedAverageExercisePriceOfWarrantsExercisableInMoney" name="WeightedAverageExercisePriceOfWarrantsExercisableInMoney" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_ShareholdingsByBoardOfDirectorsAndExecutiveManagementLineItems" name="ShareholdingsByBoardOfDirectorsAndExecutiveManagementLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_KeyManagementPersonnelCompensationCommitteeFees" name="KeyManagementPersonnelCompensationCommitteeFees" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_RemunerationToExecutiveManagementAbstract" name="RemunerationToExecutiveManagementAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_KeyManagementPersonnelCompensationBaseSalary" name="KeyManagementPersonnelCompensationBaseSalary" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_KeyManagementPersonnelCompensationOtherBenefits" name="KeyManagementPersonnelCompensationOtherBenefits" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_KeyManagementPersonnelCompensationAnnualCashBonus" name="KeyManagementPersonnelCompensationAnnualCashBonus" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_GenmabB.v.Member" name="GenmabB.v.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_GenmabHoldingB.v.Member" name="GenmabHoldingB.v.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_GenmabUsInc.Member" name="GenmabUsInc.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_GenmabK.k.Member" name="GenmabK.k.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ProportionOfOwnershipInterestAndVotingRightsInSubsidiary" name="ProportionOfOwnershipInterestAndVotingRightsInSubsidiary" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_CommitmentsAbstract" name="CommitmentsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ShortTermContractualObligations" name="ShortTermContractualObligations" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="gmab_ContingentCommitmentsAmount" name="ContingentCommitmentsAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="gmab_AuditorSRemunerationForAuditRelatedServices" name="AuditorSRemunerationForAuditRelatedServices" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_FeesForOtherAuditServices" name="FeesForOtherAuditServices" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_CollaborationsAgreementTieredRoyaltyPercentage" name="CollaborationsAgreementTieredRoyaltyPercentage" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_CollaborationsAgreementRoyaltyObligationExpirationTermAfterFirstSaleOfProduct" name="CollaborationsAgreementRoyaltyObligationExpirationTermAfterFirstSaleOfProduct" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_CollaborationsAgreementNonCancerTreatmentRoyaltyPercentageOnWorldWideNetSales" name="CollaborationsAgreementNonCancerTreatmentRoyaltyPercentageOnWorldWideNetSales" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_CollaborationsAgreementCostAndProfitSharingRatio" name="CollaborationsAgreementCostAndProfitSharingRatio" nillable="true" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_CollaborationsAgreementUpfrontFeePaid" name="CollaborationsAgreementUpfrontFeePaid" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelTableTextBlock" name="DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ImpactOnFinancialPositionTerminationOfServices" name="ImpactOnFinancialPositionTerminationOfServices" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_ExercisePriceShareWarrantsGranted" name="ExercisePriceShareWarrantsGranted" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfPeriodTerminationSeverancePayment" name="NumberOfPeriodTerminationSeverancePayment" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_EmployeeNoticePeriod" name="EmployeeNoticePeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfPeriodTerminationSeverancePaymentChangeInControl" name="NumberOfPeriodTerminationSeverancePaymentChangeInControl" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ShareholdingsByBoardOfDirectorAndExecutiveManagementLineItems" name="ShareholdingsByBoardOfDirectorAndExecutiveManagementLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_AgreementsWithBointechMember" name="AgreementsWithBointechMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_UpfrontMilestonePaymentReceived" name="UpfrontMilestonePaymentReceived" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_DevelopmentRegulatoryAndSalesMilestoneMember" name="DevelopmentRegulatoryAndSalesMilestoneMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_CountriesOutsideUnitedStatesAndJapanMember" name="CountriesOutsideUnitedStatesAndJapanMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_RatioOfShareOfProfitsBeforeIncomeTaxes" name="RatioOfShareOfProfitsBeforeIncomeTaxes" nillable="true" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_ClinicalDevelopmentAndCommercialSuccessAcrossAllThreeProgramsMember" name="ClinicalDevelopmentAndCommercialSuccessAcrossAllThreeProgramsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_SuccessOfAllFourNextGenerationAntibodyProductCandidatesDevelopedMember" name="SuccessOfAllFourNextGenerationAntibodyProductCandidatesDevelopedMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_DiscoverResearchAndDevelopmentCostResponsibilityPercent" name="DiscoverResearchAndDevelopmentCostResponsibilityPercent" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfPerformanceObligations" name="NumberOfPerformanceObligations" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_ContractTransactionPrice" name="ContractTransactionPrice" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="gmab_NumberOfDeliveryLicenses" name="NumberOfDeliveryLicenses" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="gmab_AgreementsWithAbbvieMember" name="AgreementsWithAbbvieMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ResultsForYearTextBlock" name="ResultsForYearTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_BoardOfDirectorRimaNassarMember" name="BoardOfDirectorRimaNassarMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ExecutiveManagerAnthonyPaganoMember" name="ExecutiveManagerAnthonyPaganoMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_ExecutiveManagerAnthonyManciniMember" name="ExecutiveManagerAnthonyManciniMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_CorporateTaxReceivable" name="CorporateTaxReceivable" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="gmab_ProceedsFromNonRefundableUpfrontPayment" name="ProceedsFromNonRefundableUpfrontPayment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="gmab_AgreementsWithRocheMember" name="AgreementsWithRocheMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_TaxBenefitArisingFromPreviouslyUnrecognizedDeferredTaxAssets" name="TaxBenefitArisingFromPreviouslyUnrecognizedDeferredTaxAssets" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="gmab_DeferredRevenueMember" name="DeferredRevenueMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_DisclosureOfFairValueMeasurementOfAssetsLevel3ReconciliationTableTextBlock" name="DisclosureOfFairValueMeasurementOfAssetsLevel3ReconciliationTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_GainOnOtherInvestments" name="GainOnOtherInvestments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="gmab_ShareCapitalExerciseOfWarrants" name="ShareCapitalExerciseOfWarrants" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_LossesOnOtherInvestmentsNet" name="LossesOnOtherInvestmentsNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_StaffCostsIncludedInSellingGeneralAndAdministrativeExpenses" name="StaffCostsIncludedInSellingGeneralAndAdministrativeExpenses" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_OtherInvestmentMember" name="OtherInvestmentMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_CollaborationRevenueMember" name="CollaborationRevenueMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_CorporateBondsMember" name="CorporateBondsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_IfrsCommercialPaperMember" name="IfrsCommercialPaperMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_OtherMarketableSecuritiesMember" name="OtherMarketableSecuritiesMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="gmab_DisclosureOfMarketableSecuritiesByCurrencyTableTextBlock" name="DisclosureOfMarketableSecuritiesByCurrencyTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_GainsOnMarketableSecurities" name="GainsOnMarketableSecurities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="gmab_NumberOfApprovedProductsCommercializedByThirdParties" name="NumberOfApprovedProductsCommercializedByThirdParties" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NumberOfApprovedProductsJointlyCommercializedWithCollaboration" name="NumberOfApprovedProductsJointlyCommercializedWithCollaboration" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="gmab_NonDeductibleExpensesNonTaxableIncomeAndOtherPermanentDifferencesNet" name="NonDeductibleExpensesNonTaxableIncomeAndOtherPermanentDifferencesNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="gmab_ExecutiveManagerTahamtanAhmadiMember" name="ExecutiveManagerTahamtanAhmadiMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="TaxOnItemsRecognizedDirectlyInEquity" id="gmab_TaxOnItemsRecognizedDirectlyInEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsRoyaltiesByProductAxis" id="gmab_IfrsRoyaltiesByProductAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsRoyaltiesByProductDomain" id="gmab_IfrsRoyaltiesByProductDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DarzalexMember" id="gmab_DarzalexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TepezzaMember" id="gmab_TepezzaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="KesimptaMember" id="gmab_KesimptaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherRoyaltyProductMember" id="gmab_OtherRoyaltyProductMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfShareRepurchasesTableTextBlock" id="gmab_ScheduleOfShareRepurchasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ElizabethOfarrellMember" id="gmab_ElizabethOfarrellMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MartinSchultzMember" id="gmab_MartinSchultzMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TakahiroHamataniMember" id="gmab_TakahiroHamataniMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ResultsForYearAbstract" id="gmab_ResultsForYearAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AdjustmentToUnrecognizedDeferredTaxAssets" id="gmab_AdjustmentToUnrecognizedDeferredTaxAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TaxEffectOfAdjustmentToUnrecognizedDeferredTaxAssets" id="gmab_TaxEffectOfAdjustmentToUnrecognizedDeferredTaxAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AmountOfSeekingAwardInSecondArbitration" id="gmab_AmountOfSeekingAwardInSecondArbitration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NewRoyaltyObligationTermFromDateOfFirstCommercialSaleOfProduct" id="gmab_NewRoyaltyObligationTermFromDateOfFirstCommercialSaleOfProduct" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReceivableAmountRelatedToAdditionalDevelopmentRegulatoryAndSalesMilestonePayments" id="gmab_ReceivableAmountRelatedToAdditionalDevelopmentRegulatoryAndSalesMilestonePayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ReceivableAmountRelatedToClinicalDevelopmentAndCommercialSuccess" id="gmab_ReceivableAmountRelatedToClinicalDevelopmentAndCommercialSuccess" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MaximumNumberOfProductConceptsForWhichCostPlusMarginApproachWasUtilized" id="gmab_MaximumNumberOfProductConceptsForWhichCostPlusMarginApproachWasUtilized" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AgreementWithJanssenDuobodyMember" id="gmab_AgreementWithJanssenDuobodyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfProductsWereInActiveClinicalDevelopment" id="gmab_NumberOfProductsWereInActiveClinicalDevelopment" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CollaborationsAgreementRoyaltiesExpirationTermAfterFirstSaleOfEachLicensedProduct" id="gmab_CollaborationsAgreementRoyaltiesExpirationTermAfterFirstSaleOfEachLicensedProduct" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EstimatedImpactOfNetProfitBeforeTaxDueToIncreaseOrDecreaseInExchangeRate" id="gmab_EstimatedImpactOfNetProfitBeforeTaxDueToIncreaseOrDecreaseInExchangeRate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncreaseInInterestIncome" id="gmab_IncreaseInInterestIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PercentageOfIncreaseInInterestIncome" id="gmab_PercentageOfIncreaseInInterestIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfIncreaseDecreaseInForeignExchangeRate" id="gmab_PercentageOfIncreaseDecreaseInForeignExchangeRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GmabWarrantsGrantedFromMarchTwoThousandSeventeenUntilFebruaryTwoThousandTwentyOneMember" id="gmab_GmabWarrantsGrantedFromMarchTwoThousandSeventeenUntilFebruaryTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtInstrumentGovernmentBondsMaturityPeriod" id="gmab_DebtInstrumentGovernmentBondsMaturityPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="RatioOfSharingPreTaxProfits" id="gmab_RatioOfSharingPreTaxProfits" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfWarrantsIssuedAndWarrantsReissuedActivityTableTextBlock" id="gmab_DisclosureOfWarrantsIssuedAndWarrantsReissuedActivityTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StockRepurchaseThirdAuthorizationMember" id="gmab_StockRepurchaseThirdAuthorizationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PropertyAndEquipmentMember" id="gmab_PropertyAndEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NetProductSalesMember" id="gmab_NetProductSalesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NovartisMember" id="gmab_NovartisMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PaymentTerms" id="gmab_PaymentTerms" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BirgitteStephensenMember" id="gmab_BirgitteStephensenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ChristopherCozicMember" id="gmab_ChristopherCozicMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MartineVanVugtMember" id="gmab_MartineVanVugtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfFutureDifferentiatedAntibodyTherapeuticsForCancer" id="gmab_NumberOfFutureDifferentiatedAntibodyTherapeuticsForCancer" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" id="gmab_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GmabWarrantsGrantedFromAprilTwoThousandTwelveUntilMarchTwoThousandSeventeenMember" id="gmab_GmabWarrantsGrantedFromAprilTwoThousandTwelveUntilMarchTwoThousandSeventeenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StaffCostsIncludedInCostOfProductSales" id="gmab_StaffCostsIncludedInCostOfProductSales" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PfizerMember" id="gmab_PfizerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsGeographicalAxis" id="gmab_IfrsGeographicalAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsGeographicalDomain" id="gmab_IfrsGeographicalDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfInventoriesTable" id="gmab_ScheduleOfInventoriesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfInventoriesLineItems" id="gmab_ScheduleOfInventoriesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfReceivablesTable" id="gmab_DisclosureOfReceivablesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfReceivablesLineItems" id="gmab_DisclosureOfReceivablesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsScheduleOfInventoryCurrentTableTextBlock" id="gmab_IfrsScheduleOfInventoryCurrentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ExcludingNetProductSalesMember" id="gmab_ExcludingNetProductSalesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StockRepurchaseAuthorization2024Member" id="gmab_StockRepurchaseAuthorization2024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsIncreaseDecreaseInOperatingCapitalAbstract" id="gmab_IfrsIncreaseDecreaseInOperatingCapitalAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PaymentsForPostCombinationEquityAwards" id="gmab_PaymentsForPostCombinationEquityAwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProfoundbioMember" id="gmab_ProfoundbioMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationNumberOfCandidatesInClinicalDevelopmentRightsReceived" id="gmab_BusinessCombinationNumberOfCandidatesInClinicalDevelopmentRightsReceived" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CashTransferredForOutstandingShares" id="gmab_CashTransferredForOutstandingShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CashTransferredForOutstandingEquityAwardsForSettlementOfVestedAndNonVestedAwards" id="gmab_CashTransferredForOutstandingEquityAwardsForSettlementOfVestedAndNonVestedAwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CashTransferredForOutstandingEquityAwardsForSettlementOfVestedAwards" id="gmab_CashTransferredForOutstandingEquityAwardsForSettlementOfVestedAwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CashTransferredForOutstandingEquityAwardsForSettlementOfNonVestedAwards" id="gmab_CashTransferredForOutstandingEquityAwardsForSettlementOfNonVestedAwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsInProcessResearchAndDevelopmentMember" id="gmab_IfrsInProcessResearchAndDevelopmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherCurrentAssetsRecognisedAsOfAcquisitionDate" id="gmab_OtherCurrentAssetsRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" id="gmab_OtherNonCurrentAssetsRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" id="gmab_OtherCurrentLiabilitiesRecognisedAsOfAcquisitionDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ResearchAndDevelopmentExpensesOfAcquiree" id="gmab_ResearchAndDevelopmentExpensesOfAcquiree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SellingGeneralAndAdministrativeExpensesOfAcquiree" id="gmab_SellingGeneralAndAdministrativeExpensesOfAcquiree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AcquisitionAndIntegrationRelatedChargesOfAcquiree" id="gmab_AcquisitionAndIntegrationRelatedChargesOfAcquiree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ExpensesOfAcquiree" id="gmab_ExpensesOfAcquiree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LicensesAndPatentsMember" id="gmab_LicensesAndPatentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfPatentsOnWhichCaseFiled" id="gmab_NumberOfPatentsOnWhichCaseFiled" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfShareBuyBackPrograms" id="gmab_NumberOfShareBuyBackPrograms" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsStatementTable" id="gmab_IfrsStatementTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsStatementLineItems" id="gmab_IfrsStatementLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProfoundbioIncMember" id="gmab_ProfoundbioIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProfoundbioUsCoMember" id="gmab_ProfoundbioUsCoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProfoundLimitedMember" id="gmab_ProfoundLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProfoundbioCo.LtdMember" id="gmab_ProfoundbioCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProfoundbioShanghaiBranchCo.LtdMember" id="gmab_ProfoundbioShanghaiBranchCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BeijingPuyifangBiotechnologyCo.LtdMember" id="gmab_BeijingPuyifangBiotechnologyCo.LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsNumberOfOperatingSegments" id="gmab_IfrsNumberOfOperatingSegments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BradBaileyMember" id="gmab_BradBaileyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RayneWallerMember" id="gmab_RayneWallerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StaffCostsAbstract" id="gmab_StaffCostsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsAccountingPoliciesAbstract" id="gmab_IfrsAccountingPoliciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsOtherInvestmentsAbstract" id="gmab_IfrsOtherInvestmentsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReceivablesTextBlock" id="gmab_ReceivablesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsMarketableSecuritiesTextBlock" id="gmab_IfrsMarketableSecuritiesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsMarketableSecuritiesAbstract" id="gmab_IfrsMarketableSecuritiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TradeAndOtherPayablesTextBlock" id="gmab_TradeAndOtherPayablesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PrivatelyHeldEquitySecuritiesMember" id="gmab_PrivatelyHeldEquitySecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AccountingPoliciesTextBlock" id="gmab_AccountingPoliciesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AuditorsRemunerationTable" id="gmab_AuditorsRemunerationTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AuditorsRemunerationLineItems" id="gmab_AuditorsRemunerationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfFeesToAuditorsTextBlock" id="gmab_DisclosureOfFeesToAuditorsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AccountingPoliciesTable" id="gmab_AccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AccountingPoliciesLineItems" id="gmab_AccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EmployeeBenefitExpenseTable" id="gmab_EmployeeBenefitExpenseTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EmployeeBenefitExpenseLineItems" id="gmab_EmployeeBenefitExpenseLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncomeTaxDisclosureTable" id="gmab_IncomeTaxDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncomeTaxDisclosureLineItems" id="gmab_IncomeTaxDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LeasesTable" id="gmab_LeasesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LeasesLineItems" id="gmab_LeasesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherInvestmentsTable" id="gmab_OtherInvestmentsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherInvestmentsLineItems" id="gmab_OtherInvestmentsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReceivablesTable" id="gmab_ReceivablesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReceivablesLineItems" id="gmab_ReceivablesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractLiabilitiesTable" id="gmab_ContractLiabilitiesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractLiabilitiesLineItems" id="gmab_ContractLiabilitiesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinanceIncomeAndExpensesTable" id="gmab_FinanceIncomeAndExpensesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinanceIncomeAndExpensesLineItems" id="gmab_FinanceIncomeAndExpensesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherPayablesTable" id="gmab_OtherPayablesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherPayablesLineItems" id="gmab_OtherPayablesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RemunerationToBoardsDirectorsAndExecutiveManagementTextBlock" id="gmab_RemunerationToBoardsDirectorsAndExecutiveManagementTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IntercompanyReimbursementIncomeMember" id="gmab_IntercompanyReimbursementIncomeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IntercompanyNetProductSalesMember" id="gmab_IntercompanyNetProductSalesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PercentageOfCommissionExecutiveManagementNotEmployedByParentCompanyPercentage" id="gmab_PercentageOfCommissionExecutiveManagementNotEmployedByParentCompanyPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ReimbursementRevenueRelatedPartyTransactions" id="gmab_ReimbursementRevenueRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MilestoneCostRelatedPartyTransactions" id="gmab_MilestoneCostRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ImpairmentLossInvestmentInSubsidiaries" id="gmab_ImpairmentLossInvestmentInSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DividendIncomeRelatedPartyTransactions" id="gmab_DividendIncomeRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FinancialIncomeRelatedPartyTransactions" id="gmab_FinancialIncomeRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FinancialExpensesRelatedPartyTransactions" id="gmab_FinancialExpensesRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IntangibleAssetsRelatedPartyTransactions" id="gmab_IntangibleAssetsRelatedPartyTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InvestmentsInSubsidiariesAdditions" id="gmab_InvestmentsInSubsidiariesAdditions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DisclosureOfCommitmentsAndContingenciesAbstract" id="gmab_DisclosureOfCommitmentsAndContingenciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DisclosureOfSubsidiariesPolicyTextBlock" id="gmab_DisclosureOfSubsidiariesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InterestExpensesInvestmentInSubsidiaries" id="gmab_InterestExpensesInvestmentInSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DividendIncomeInvestmentInSubsidiaries" id="gmab_DividendIncomeInvestmentInSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="InterestIncomeInvestmentInSubsidiaries" id="gmab_InterestIncomeInvestmentInSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProceedsPaymentsFromTransactionWithSubsidiaries" id="gmab_ProceedsPaymentsFromTransactionWithSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GainLossOnMarketableSecuritiesNet" id="gmab_GainLossOnMarketableSecuritiesNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DecreaseInGainOfMarketableSecurities" id="gmab_DecreaseInGainOfMarketableSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PercentageOfDecreaseInGainOfMarketableSecurities" id="gmab_PercentageOfDecreaseInGainOfMarketableSecurities" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseInGainOfMarketableSecurities" id="gmab_IncreaseInGainOfMarketableSecurities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PercentageOfIncreaseInGainOfMarketableSecurities" id="gmab_PercentageOfIncreaseInGainOfMarketableSecurities" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GainsLossOnOtherInvestmentsNet" id="gmab_GainsLossOnOtherInvestmentsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ExcludingIntercompanyRevenueMember" id="gmab_ExcludingIntercompanyRevenueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IfrsDebtInstrumentTerm" id="gmab_IfrsDebtInstrumentTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IfrsLineOfCreditFacilityMaximumBorrowingCapacity" id="gmab_IfrsLineOfCreditFacilityMaximumBorrowingCapacity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IfrsLineOfCreditFacilityMaximumBorrowingCapacityOptionToIncrease" id="gmab_IfrsLineOfCreditFacilityMaximumBorrowingCapacityOptionToIncrease" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AdditionalDebtInstrumentTerm" id="gmab_AdditionalDebtInstrumentTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UnsecuredRevolvingCreditFacilityMember" id="gmab_UnsecuredRevolvingCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ContractLiabilityRevenueRecognizedDuringPeriod" id="gmab_ContractLiabilityRevenueRecognizedDuringPeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="TreasuryStockSharesOutstanding" id="gmab_TreasuryStockSharesOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="IntangibleAssetsTemporaryDifferenceMember" id="gmab_IntangibleAssetsTemporaryDifferenceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MaximumExposureToCreditRiskOfReceivables" id="gmab_MaximumExposureToCreditRiskOfReceivables" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="AmountByWhichReceivablesRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk" id="gmab_AmountByWhichReceivablesRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DeferredTaxAssetsIncludingIntangibleAssets" id="gmab_DeferredTaxAssetsIncludingIntangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CurrentPayablesOther" id="gmab_CurrentPayablesOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CurrentReceivables" id="gmab_CurrentReceivables" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
</xsd:schema>
