| 2019-04-09 | Sale | Geron Corporation GERN | EVP, Chief Business Officer | 241,270 0.1421% | $2.00 | $482,540 | -23.08% | |
| 2015-05-29 | Sale | Geron Corporation GERN | EVP BD and Port&Alliance Mgmt | 4,760 0.003% | $3.84 | $18,278 | -14.77% | |
| 2014-05-29 | Sale | Geron Corporation GERN | EVP Portfolio & Alliance Mgmt | 9,652 0.0061% | $2.10 | $20,269 | +44.58% | |
| 2014-04-01 | Sale | Geron Corporation GERN | EVP Portfolio & Alliance Mgmt | 24,620 0.0158% | $2.13 | $52,441 | +22.05% | |
| 2013-01-17 | Sale | Geron Corporation GERN | SVP Alliance and Prog Mgmt | 56,584 0.0438% | $1.65 | $93,137 | -9.64% | |
| 2012-05-30 | Sale | Geron Corporation GERN | SVP Strategic Portfolio Mgmt | 37,820 0.0309% | $1.37 | $51,813 | +9.09% | |
| 2011-06-14 | Sale | Geron Corporation GERN | SVP Strategic Portfolio Mgmt | 50,524 0.0429% | $4.28 | $216,243 | -50.86% | |
| 2011-05-24 | Sale | Geron Corporation GERN | SVP Strategic Portfolio Mgmt | 5,950 0.0048% | $4.47 | $26,597 | -53.51% | |
| 2010-06-02 | Sale | Geron Corporation GERN | SVP Oncology | 21,234 0.0211% | $5.43 | $115,301 | -10.35% | |
| 2010-05-24 | Sale | Geron Corporation GERN | SVP Oncology | 4,672 0.0049% | $5.11 | $23,874 | +1.4% | |
| 2009-05-29 | Sale | Geron Corporation GERN | SVP Oncology | 4,554 0.005% | $6.35 | $28,918 | -6.06% | |
| 2009-05-26 | Sale | Geron Corporation GERN | SVP Oncology | 13,638 0.0155% | $6.75 | $92,057 | -8.35% | |
| 2009-02-02 | Sale | Geron Corporation GERN | SVP Oncology | 29,530 0.0368% | $8.12 | $239,784 | -18.02% | |
| 2009-01-05 | Sale | Geron Corporation GERN | SVP Oncology | 17,722 0.0206% | $4.90 | $86,838 | +27.8% | |
| 2008-11-05 | Sale | Geron Corporation GERN | SVP Oncology | 47,690 0.0632% | $4.05 | $193,145 | +63.43% | |
| 2008-01-04 | Sale | Geron Corporation GERN | SVP Oncology | 17,822 0.0237% | $5.34 | $95,169 | -17.52% | |
| 2006-01-09 | Sale | Geron Corporation GERN | VP, Oncology | 8,441 0.013% | $8.56 | $72,255 | -12.02% | |
| 2005-07-29 | Sale | Geron Corporation GERN | VP, Oncology | 65,571 0.1139% | $10.88 | $713,412 | -22.1% | |
| 2005-01-13 | Sale | Geron Corporation GERN | VP, Oncology | 8,648 0.0162% | $8.57 | $74,113 | +2.38% | |
| 2004-04-06 | Sale | Geron Corporation GERN | VP, Oncology | 2,029 0.0047% | $9.60 | $19,478 | -23.35% |