| 2011-06-14 | Sale | Geron Corporation GERN | SVP Alliance Mgmt & Operations | 45,182 0.0383% | $4.28 | $193,379 | -50.86% | |
| 2011-05-24 | Sale | Geron Corporation GERN | SVP Prgm Mgmt, Cell Therapies | 838 0.0007% | $4.47 | $3,746 | -53.51% | |
| 2010-06-02 | Sale | Geron Corporation GERN | VP Operations, Regen Med Progs | 16,372 0.0163% | $5.43 | $88,900 | -10.35% | |
| 2010-05-24 | Sale | Geron Corporation GERN | VP Operations, Regen Med Progs | 770 0.0008% | $5.11 | $3,935 | +1.4% | |
| 2009-05-29 | Sale | Geron Corporation GERN | VP Operations, Regen Med Progs | 800 0.0009% | $6.35 | $5,080 | -6.06% | |
| 2009-05-26 | Sale | Geron Corporation GERN | VP Operations, Regen Med Progs | 5,728 0.0065% | $6.75 | $38,664 | -8.35% |