| 2019-05-21 | Sale | CSG Systems International, Inc. CSGS | director | 6,800 0.0213% | $46.09 | $313,412 | +12.07% | |
| 2019-05-17 | Sale | CSG Systems International, Inc. CSGS | director | 200 0.0006% | $46.10 | $9,220 | +13.07% | |
| 2018-02-26 | Sale | CSG Systems International, Inc. CSGS | director | 5,000 0.0151% | $47.28 | $236,400 | -16.76% | |
| 2017-06-12 | Sale | CSG Systems International, Inc. CSGS | director | 5,000 0.0153% | $41.53 | $207,650 | +2.87% |