| 2005-07-28 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 11,039 0.0233% | $18.85 | $208,085 | +21.5% | |
| 2005-07-27 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 37,002 0.0756% | $18.23 | $674,572 | +21.17% | |
| 2005-07-26 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 2,000 0.0042% | $17.75 | $35,500 | +28.24% | |
| 2005-07-25 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 40,000 0.0848% | $17.69 | $707,439 | +29.42% | |
| 2005-07-19 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 10,500 0.0223% | $17.93 | $188,250 | +27.48% | |
| 2005-07-18 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 34,000 0.072% | $17.62 | $599,036 | +29.26% | |
| 2005-07-12 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 7,500 0.0159% | $18.00 | $135,000 | +26.52% | |
| 2005-07-11 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 37,000 0.0774% | $17.73 | $656,072 | +26.58% | |
| 2005-05-05 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 75,000 0.1559% | $18.00 | $1.35M | +23.46% | |
| 2005-01-11 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 22,462 0.0473% | $18.04 | $405,138 | +8.72% | |
| 2005-01-05 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 75,500 0.1518% | $17.75 | $1.34M | +5.33% | |
| 2004-11-30 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 10,000 0.0201% | $18.06 | $180,600 | +1.05% | |
| 2004-11-29 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 5,000 0.0104% | $18.45 | $92,250 | +2.17% | |
| 2004-11-26 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 5,000 0.0101% | $18.50 | $92,500 | -0.57% | |
| 2004-11-24 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 130,000 0.2626% | $18.52 | $2.41M | -1% | |
| 2004-11-23 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 100,000 0.2022% | $18.44 | $1.84M | -0.43% | |
| 2004-11-22 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 80,000 0.1606% | $18.23 | $1.46M | <0.01% | |
| 2004-11-19 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 20,000 0.0405% | $18.20 | $364,000 | +0.91% | |
| 2004-11-08 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 10,500 0.0205% | $17.39 | $182,600 | +2.06% | |
| 2004-11-02 | Sale | CSG Systems International, Inc. CSGS | Chairman & CEO | 30,000 0.0599% | $17.00 | $510,000 | +5.82% |