| 2013-02-07 | Sale | CSG Systems International, Inc. CSGS | director | 40,000 0.127% | $19.41 | $776,205 | +26.46% | |
| 2012-05-04 | Sale | CSG Systems International, Inc. CSGS | director | 20,000 0.0623% | $16.11 | $322,155 | +20.12% | |
| 2007-05-29 | Sale | CSG Systems International, Inc. CSGS | director | 24,000 0.0404% | $19.06 | $457,500 | -38.42% |