| 2012-05-30 | Sale | Geron Corporation GERN | SVP, Corp Transactions | 54,310 0.0444% | $1.37 | $74,405 | +9.09% | |
| 2011-06-14 | Sale | Geron Corporation GERN | Chief Legal Counsel | 50,524 0.0429% | $4.28 | $216,243 | -50.86% | |
| 2011-05-24 | Sale | Geron Corporation GERN | SVP Bus Dev, Chief Patnt Couns | 5,950 0.0048% | $4.47 | $26,597 | -53.51% | |
| 2010-06-02 | Sale | Geron Corporation GERN | SVP Bus Dev, Chief Patnt Couns | 21,234 0.0211% | $5.43 | $115,301 | -10.35% | |
| 2010-05-24 | Sale | Geron Corporation GERN | SVP Bus Dev, Chief Patnt Couns | 4,672 0.0049% | $5.11 | $23,874 | +1.4% | |
| 2009-05-29 | Sale | Geron Corporation GERN | SVP Bus Dev, Chief Patnt Couns | 4,554 0.005% | $6.35 | $28,918 | -6.06% | |
| 2009-05-26 | Sale | Geron Corporation GERN | SVP Bus Dev, Chief Patnt Couns | 30,912 0.0351% | $6.75 | $208,656 | -8.35% | |
| 2009-01-05 | Sale | Geron Corporation GERN | SVP Bus Dev, Chief Patnt Couns | 17,722 0.0206% | $4.90 | $86,838 | +27.8% | |
| 2008-01-04 | Sale | Geron Corporation GERN | SVP Bus Dev, Chief Patnt Couns | 17,822 0.0237% | $5.34 | $95,169 | -17.52% | |
| 2006-01-09 | Sale | Geron Corporation GERN | SVP Bus Dev / Chf Patent Couns | 11,323 0.0174% | $8.56 | $96,925 | -12.02% | |
| 2005-01-13 | Sale | Geron Corporation GERN | SVP Bus Dev / Chf Patent Couns | 9,239 0.0174% | $8.57 | $79,178 | +2.38% |