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<!-- DFIN ActiveDisclosure(SM) XBRL Linkbase Document - http://www.dfinsolutions.com/ --> |
<!-- Creation Date : 2020-08-05T08:42:50.6645151+00:00 --> |
<!-- Version : 5.0.1.476 --> |
<!-- Package ID : 6c14fb7220944db7aaa4097cd3e1a822 --> |
<!-- Copyright (c) 2020 Donnelley Financial Solutions, Inc. All Rights Reserved. --> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_InvestmentHoldingsLineItems" xlink:to="us-gaap_IncreaseDecreaseInEquitySecuritiesFvNi" order="10770.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_InvestmentHoldingsLineItems" xlink:to="us-gaap_ForeignCurrencyTransactionGainLossUnrealized" order="10890.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_InvestmentHoldingsLineItems" xlink:to="us-gaap_BusinessCombinationCostOfAcquiredEntityEquityInterestsIssuedAndIssuableFairValueMethod" order="11010.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_InvestmentHoldingsLineItems" xlink:to="gern_DescriptionOfAcquisition" order="11130.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
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| | <link:loc xlink:href="gern-20200630.xsd#gern_CollaborativeArrangementAfterTerminationCostSharingPercentageOfEntity" xlink:type="locator" xlink:label="gern_CollaborativeArrangementAfterTerminationCostSharingPercentageOfEntity"/> |
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| | <link:loc xlink:href="gern-20200630.xsd#gern_ClinicalSupplyAgreementMember" xlink:type="locator" xlink:label="gern_ClinicalSupplyAgreementMember"/> |
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| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:to="gern_ClinicalSupplyAgreementMember" order="10140.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
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| | <link:loc xlink:href="gern-20200630.xsd#gern_OperatingLeaseRentAbatementPeriod" xlink:type="locator" xlink:label="gern_OperatingLeaseRentAbatementPeriod"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiability"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseRenewalTerm"/> |
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| | <link:loc xlink:href="gern-20200630.xsd#gern_FosterCityOfficeSpaceLeaseMember" xlink:type="locator" xlink:label="gern_FosterCityOfficeSpaceLeaseMember"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_NewJerseyOfficeSpaceLeaseMember" xlink:type="locator" xlink:label="gern_NewJerseyOfficeSpaceLeaseMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LeaseContractualTermDomain" xlink:type="locator" xlink:label="us-gaap_LeaseContractualTermDomain"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:type="locator" xlink:label="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_LeasesAbstract" xlink:type="locator" xlink:label="us-gaap_LeasesAbstract"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_LeasesAbstract" xlink:to="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" order="10070.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" order="10110.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" order="10130.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" order="10150.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" order="10170.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive" order="10190.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive" order="10210.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" order="10230.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" order="10270.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract" xlink:to="us-gaap_OperatingLeaseLiability" order="10290.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | </link:presentationLink> |
| <link:roleRef roleURI="http://www.geron.com/20200630/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYPUBLICOFFERINGDetails" xlink:href="gern-20200630.xsd#Role_DisclosureSTOCKHOLDERSEQUITYPUBLICOFFERINGDetails" xlink:type="simple"/> |
| <link:presentationLink xlink:type="extended" xlink:role="http://www.geron.com/20200630/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYPUBLICOFFERINGDetails"> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_AccruedUnpaidOfferingExpenses" xlink:type="locator" xlink:label="gern_AccruedUnpaidOfferingExpenses"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockPricePerShare" xlink:type="locator" xlink:label="us-gaap_SaleOfStockPricePerShare"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SharesIssuedPricePerShare" xlink:type="locator" xlink:label="us-gaap_SharesIssuedPricePerShare"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_ShareOfCommonStockIssuedDuringPeriodSharesNewIssuesPublicOffering" xlink:type="locator" xlink:label="gern_ShareOfCommonStockIssuedDuringPeriodSharesNewIssuesPublicOffering"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_PublicOfferingLineItems" xlink:type="locator" xlink:label="gern_PublicOfferingLineItems"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_PreFundedWarrantsMember" xlink:type="locator" xlink:label="gern_PreFundedWarrantsMember"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_StockPurchaseWarrantsMember" xlink:type="locator" xlink:label="gern_StockPurchaseWarrantsMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityComponentDomain" xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_UnderwrittenPublicOfferingMember" xlink:type="locator" xlink:label="gern_UnderwrittenPublicOfferingMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:type="locator" xlink:label="us-gaap_SubsidiarySaleOfStockAxis"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_PublicOfferingTable" xlink:type="locator" xlink:label="gern_PublicOfferingTable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:type="locator" xlink:label="us-gaap_StockholdersEquityNoteAbstract"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_StockholdersEquityNoteAbstract" xlink:to="gern_PublicOfferingTable" order="10020.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingTable" xlink:to="us-gaap_SubsidiarySaleOfStockAxis" order="10030.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain" order="10060.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="gern_UnderwrittenPublicOfferingMember" order="10080.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingTable" xlink:to="us-gaap_StatementEquityComponentsAxis" order="10030.02" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" order="10300.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_EquityComponentDomain" xlink:to="gern_StockPurchaseWarrantsMember" order="10320.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_EquityComponentDomain" xlink:to="gern_PreFundedWarrantsMember" order="10340.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingTable" xlink:to="gern_PublicOfferingLineItems" order="10440.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingLineItems" xlink:to="gern_ShareOfCommonStockIssuedDuringPeriodSharesNewIssuesPublicOffering" order="10450.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingLineItems" xlink:to="us-gaap_ProceedsFromIssuanceOrSaleOfEquity" order="10470.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingLineItems" xlink:to="us-gaap_SharesIssuedPricePerShare" order="10490.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="10510.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" order="10530.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingLineItems" xlink:to="us-gaap_SaleOfStockPricePerShare" order="10570.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_PublicOfferingLineItems" xlink:to="gern_AccruedUnpaidOfferingExpenses" order="10610.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | </link:presentationLink> |
| <link:roleRef roleURI="http://www.geron.com/20200630/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYATMARKETISSUANCESALESAGREEMENTDetails" xlink:href="gern-20200630.xsd#Role_DisclosureSTOCKHOLDERSEQUITYATMARKETISSUANCESALESAGREEMENTDetails" xlink:type="simple"/> |
| <link:presentationLink xlink:type="extended" xlink:role="http://www.geron.com/20200630/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYATMARKETISSUANCESALESAGREEMENTDetails"> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_CommonStockValueToBeSold" xlink:type="locator" xlink:label="gern_CommonStockValueToBeSold"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_MaximumCommissionRate" xlink:type="locator" xlink:label="gern_MaximumCommissionRate"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_CommonStockAggregateOfferingPrice" xlink:type="locator" xlink:label="gern_CommonStockAggregateOfferingPrice"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_AtMarketIssuanceSalesAgreementsLineItems" xlink:type="locator" xlink:label="gern_AtMarketIssuanceSalesAgreementsLineItems"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_AtMarketIssuanceTwoThousandAndEighteenSalesAgreementMember" xlink:type="locator" xlink:label="gern_AtMarketIssuanceTwoThousandAndEighteenSalesAgreementMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:type="locator" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_TypeOfArrangementAxis" xlink:type="locator" xlink:label="us-gaap_TypeOfArrangementAxis"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_AtMarketIssuanceSalesAgreementsTable" xlink:type="locator" xlink:label="gern_AtMarketIssuanceSalesAgreementsTable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:type="locator" xlink:label="us-gaap_StockholdersEquityNoteAbstract"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_StockholdersEquityNoteAbstract" xlink:to="gern_AtMarketIssuanceSalesAgreementsTable" order="10020.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_AtMarketIssuanceSalesAgreementsTable" xlink:to="us-gaap_TypeOfArrangementAxis" order="10030.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_TypeOfArrangementAxis" xlink:to="us-gaap_ArrangementsAndNonarrangementTransactionsMember" order="10060.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:to="gern_AtMarketIssuanceTwoThousandAndEighteenSalesAgreementMember" order="10080.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_AtMarketIssuanceSalesAgreementsTable" xlink:to="gern_AtMarketIssuanceSalesAgreementsLineItems" order="10180.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_AtMarketIssuanceSalesAgreementsLineItems" xlink:to="gern_CommonStockAggregateOfferingPrice" order="10190.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_AtMarketIssuanceSalesAgreementsLineItems" xlink:to="gern_MaximumCommissionRate" order="10230.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_AtMarketIssuanceSalesAgreementsLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues" order="10270.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_AtMarketIssuanceSalesAgreementsLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues" order="10310.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="gern_AtMarketIssuanceSalesAgreementsLineItems" xlink:to="gern_CommonStockValueToBeSold" order="10350.00" priority="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/> |
| | </link:presentationLink> |
| <link:roleRef roleURI="http://www.geron.com/20200630/taxonomy/role/DisclosureSTOCKHOLDERSEQUITY2018INDUCEMENTAWARDPLANDetails" xlink:href="gern-20200630.xsd#Role_DisclosureSTOCKHOLDERSEQUITY2018INDUCEMENTAWARDPLANDetails" xlink:type="simple"/> |
| <link:presentationLink xlink:type="extended" xlink:role="http://www.geron.com/20200630/taxonomy/role/DisclosureSTOCKHOLDERSEQUITY2018INDUCEMENTAWARDPLANDetails"> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:type="locator" xlink:label="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/> |
| | <link:loc xlink:href="gern-20200630.xsd#gern_TwoThousandAndEighteenInducementAwardPlanMember" xlink:type="locator" xlink:label="gern_TwoThousandAndEighteenInducementAwardPlanMember"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PlanNameDomain" xlink:type="locator" xlink:label="us-gaap_PlanNameDomain"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PlanNameAxis" xlink:type="locator" xlink:label="us-gaap_PlanNameAxis"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:type="locator" xlink:label="us-gaap_StockholdersEquityNoteAbstract"/> |
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