| 2015-12-04 | Sale | CSG Systems International, Inc. CSGS | CEO | 4,214 0.0136% | $35.57 | $149,892 | +17.38% | |
| 2015-12-03 | Sale | CSG Systems International, Inc. CSGS | CEO | 22,546 0.0734% | $35.47 | $799,667 | +18.38% | |
| 2015-12-02 | Sale | CSG Systems International, Inc. CSGS | CEO | 30,566 0.0988% | $35.62 | $1.09M | +17.05% | |
| 2015-12-01 | Sale | CSG Systems International, Inc. CSGS | CEO | 22,674 0.073% | $35.62 | $807,573 | +16.5% | |
| 2015-05-15 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 40,000 0.1299% | $30.13 | $1.21M | +14.28% | |
| 2015-04-20 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 2,000 0.0065% | $30.20 | $60,400 | +8.81% | |
| 2015-04-17 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 1,400 0.0046% | $30.03 | $42,042 | +8.78% | |
| 2015-04-16 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 9,600 0.0312% | $30.41 | $291,936 | +7.35% | |
| 2015-04-15 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 27,000 0.0877% | $30.64 | $827,280 | +6.34% | |
| 2014-11-17 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 40,000 0.1248% | $25.44 | $1.02M | +22.18% | |
| 2014-10-15 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 40,000 0.1241% | $25.24 | $1.01M | +21.16% | |
| 2014-04-04 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 47,334 0.1458% | $25.78 | $1.22M | +3.34% | |
| 2014-04-03 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 18,666 0.0572% | $26.12 | $487,556 | +1.19% | |
| 2013-04-03 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 66,000 0.2052% | $20.49 | $1.35M | +23.7% | |
| 2012-04-03 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 49,626 0.1544% | $15.19 | $753,903 | +24.13% | |
| 2012-04-02 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 50,374 0.1551% | $15.24 | $767,725 | +22.25% | |
| 2010-05-26 | Sale | CSG Systems International, Inc. CSGS | CEO | 15,000 0.0459% | $20.13 | $301,950 | -3.79% | |
| 2010-03-10 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 10,000 0.0294% | $20.89 | $208,893 | -7.42% | |
| 2010-03-09 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 10,000 0.0294% | $20.82 | $208,177 | -7.16% | |
| 2010-03-08 | Sale | CSG Systems International, Inc. CSGS | CEO & President | 10,000 0.0297% | $20.82 | $208,156 | -6.08% |