Exhibit 99.1

   Geron Corporation Reports 2003 Third Quarter Results and Events

    MENLO PARK, Calif.--(BUSINESS WIRE)--Nov. 12, 2003--Geron
Corporation (Nasdaq:GERN) today reported financial results for the
three and nine months ended September 30, 2003.
    For the third quarter of 2003, the company reported a net loss of
$5.1 million or $(0.15) per share compared to $7.2 million or $(0.29)
per share in the third quarter of 2002. Net loss for the first nine
months of 2003 was $22.3 million or $(0.76) per share compared to
$26.7 million or $(1.08) per share for the same period in 2002.
    Revenues for the third quarter of 2003 were $472,000 compared to
$218,000 for the comparable period in 2002. Revenues for the third
quarter of 2003 included funding received under collaborative
agreements with various biotechnology companies, royalty revenues
under license agreements with companies for sales of telomerase-based
diagnostic kits, earned milestone payments and license fee revenues
recognized from sublicense agreements and license option agreements
with multiple companies for nuclear transfer and telomerase
technology. The increase in revenue in 2003 reflected new license
agreements signed for Geron's telomerase technology during the second
and third quarters of 2003 and a milestone payment earned under its
oncolytic virus program.
    Operating expenses for the third quarter of 2003 were $5.7 million
compared to $7.7 million for the comparable period in 2002. The
decrease in operating expenses is the result of reduced
personnel-related costs, reflecting the Company's progression from
internal research to focused development of potential products.
    In November 2003, the Company received approximately $64.4 million
in net cash proceeds from its public offering of common stock. With
the proceeds of the public offering, the Company estimates that its
existing capital resources, interest income and equipment financing
will be sufficient to fund current and planned operations through
December 31, 2006.

    Third Quarter 2003 Highlights:

    --  The Summer 2003 issue of Cloning & Stem Cells published
        research results that osteoblasts (bone-forming cells) can be
        derived in vitro from human embryonic stem cells (hESCs). Such
        hESC-derived osteoblasts have potential applications in
        orthopedic tissue repair and in the treatment of osteoporosis.

    --  At the 94th Annual Meeting of the American Association for
        Cancer Research, Geron collaborators presented new preclinical
        data from in vivo and in vitro studies on both the safety and
        stability of the telomerase inhibitor anti-cancer drug,
        GRN163. The results demonstrate excellent safety and
        tolerability of daily intravenous (IV bolus) dosing in rats
        for 4 weeks and, in a separate study, in dogs for 7 days, as
        well as good tolerability of continuous intracranial delivery
        for the same time periods in both species. Moreover, a series
        of stability studies demonstrated that GRN163 has appropriate
        stability in both liquid and powder formulations.

    --  Cancer Research published detailed data on cell and animal
        testing of GRN163, Geron's telomerase inhibitor anti-cancer
        drug. The results include the demonstration that GRN163
        suppresses the growth of human prostate cancer when
        administered systemically to mice.

    --  The U.S. Patent and Trademark Office granted U.S. Patent No.
        6,608,036 which includes 19 claims drawn to oligonucleotides
        that are targeted to the RNA component of human telomerase and
        have thiophosphoramidate linkages. Geron is currently
        conducting pre-clinical testing for this class of compounds,
        which includes its lead compounds, GRN163 and GRN163L.

    --  In a study conducted by collaborators at the University of
        Washington, Geron reported the successful transplant of human
        cardiomyocytes (heart muscle cells) derived from human
        embryonic stem cells (hESCs) into animals. The cardiomyocytes
        not only engrafted efficiently, but also matured and expanded
        in vivo at the site of the graft.

    --  The U.S. Patent and Trademark Office granted U.S. Patent No.
        6,610,839, with claims covering the promoter that regulates
        expression of the human telomerase reverse transcriptase gene.
        This granted patent triggered a milestone payment.

    Geron is a biopharmaceutical company focused on developing and
commercializing therapeutic and diagnostic products for cancer based
on its telomerase technology, and cell-based therapeutics using its
human embryonic stem cell technology.

    This news release may contain forward-looking statements made
pursuant to the "safe harbor" provisions of the Private Securities
Litigation Reform Act of 1995. Investors are cautioned that such
forward-looking statements in this press release regarding potential
applications of Geron's technologies and future financial results
constitute forward-looking statements that involve risks and
uncertainties, including, without limitation, risks inherent in the
development and commercialization of potential products, need for
future capital and maintenance of our intellectual property rights.
Actual results may differ materially from the results anticipated in
these forward-looking statements. Additional information on potential
factors that could affect our results and other risks and
uncertainties are detailed from time to time in Geron's periodic
reports, including the quarterly report on Form 10-Q for the quarter
ended September 30, 2003.

    Additional information about the company can be obtained at
http://www.geron.com

    Financial table follows.




                           GERON CORPORATION
            CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                              (UNAUDITED)

                         THREE MONTHS ENDED        NINE MONTHS ENDED
                            SEPTEMBER 30,            SEPTEMBER 30,
(In thousands,            2003        2002          2003       2002
 except share and
 per share
 amounts)

Revenues from
 collaborative
  agreements            $   --      $   18        $   72      $  548
License fees and
 royalties                 472         200           947         407
                        ------      ------        ------      ------
  Total revenues           472         218         1,019         955

Operating
 expenses:
  Research and
   development           4,864       6,346        19,600      24,656
  General and
   administrative          845       1,314         3,353       4,363
                       -------      ------        ------      ------
 Total operating
  expenses               5,709       7,660        22,953      29,019
                       -------      ------        ------      ------
Loss from
 operations             (5,237)     (7,442)      (21,934)    (28,064)

Interest and other
 income                    287         434           957       1,970
Debenture
 conversion
 expense                    --          --          (779)         --
Interest and other
 expense                  (157)       (188)         (571)       (585)
                       -------      ------        ------      ------
Net loss               $(5,107)    $(7,196)     $(22,327)   $(26,679)
                       =======      ======        ======      ======

Basic and diluted
 net loss per
 share                 $ (0.15)    $ (0.29)     $  (0.76)   $  (1.08)
                       =======      ======        ======      ======

Weighted average
 shares used in
  computing basic
   and diluted
  net loss per
   share            33,189,213   24,737,635    29,192,273   24,634,161
                    ==========   ==========    ==========   ==========


                 CONDENSED CONSOLIDATED BALANCE SHEETS

                                      SEPTEMBER 30,    DECEMBER 31,
(In thousands)                            2003             2002
                                          ----             ----
                                       (Unaudited)       (Note 1)
Current assets:
  Cash, restricted cash and cash
   equivalents                          $ 8,572          $ 5,134
  Marketable securities                  41,058           42,383
  Interest and other receivables            681              704
  Other current assets                    1,453            2,548
                                        -------          -------
Total current assets                     51,764           50,769

Property and equipment, net               1,809            2,444
Deposits and other assets                   881              772
Intangible assets                         4,535            6,684
                                        -------          -------
                                        $58,989          $60,669
                                        =======          =======

Current liabilities                     $ 7,600          $ 9,383
Noncurrent liabilities                    2,788           21,545
Stockholders' equity                     48,601           29,741
                                        -------          -------
                                        $58,989          $60,669
                                        =======          =======

   Note 1: Derived from audited financial statements included in
Geron's Annual Report on Form 10-K, filed with the SEC.

    CONTACT: Geron Corporation
             Olivia Bloom, 650-473-7765