    <SEC-DOCUMENT>0001206774-21-000057-index.html : 20210108
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    <ACCEPTANCE-DATETIME>20210108083026
    ACCESSION NUMBER:		0001206774-21-000057
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		44
    CONFORMED PERIOD OF REPORT:	20210108
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20210108
    DATE AS OF CHANGE:		20210108

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			GERON CORP
    		CENTRAL INDEX KEY:			0000886744
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				752287752
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-20859
    		FILM NUMBER:		21515752

    	BUSINESS ADDRESS:
    		STREET 1:		919 EAST HILLSDALE BOULEVARD
    		STREET 2:		SUITE 250
    		CITY:			FOSTER CITY
    		STATE:			CA
    		ZIP:			94404
    		BUSINESS PHONE:		6504737700

    	MAIL ADDRESS:
    		STREET 1:		919 EAST HILLSDALE BOULEVARD
    		STREET 2:		SUITE 250
    		CITY:			FOSTER CITY
    		STATE:			CA
    		ZIP:			94404

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	GERON CORPORATION
    		DATE OF NAME CHANGE:	19960521
    </SEC-HEADER>
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    <TYPE>8-K
    <SEQUENCE>1
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    <DESCRIPTION>CURRENT REPORT
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    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>geron3853301-ex991.htm
    <DESCRIPTION>JANUARY 2021 CORPORATE PRESENTATION HANDOUT
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    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
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    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
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