| 2017-12-15 | Sale | CSG Systems International, Inc. CSGS | director | 3,800 0.0116% | $44.26 | $168,185 | -6.12% | |
| 2017-11-22 | Sale | CSG Systems International, Inc. CSGS | director | 5,000 0.0153% | $44.72 | $223,600 | -5.15% | |
| 2016-12-09 | Sale | CSG Systems International, Inc. CSGS | director | 2,800 0.0089% | $47.60 | $133,280 | -15.31% | |
| 2016-11-30 | Sale | CSG Systems International, Inc. CSGS | director | 2,500 0.0081% | $44.51 | $111,275 | -7.9% |