| 2010-09-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 10.12M 9.0558% | $8.57 | $86.71M | +43.76% | |
| 2007-04-05 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 68,437 0.0764% | $12.99 | $888,778 | +7.19% | |
| 2007-04-04 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 87,989 0.098% | $13.09 | $1.15M | +6.09% | |
| 2007-04-03 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 61,103 0.0676% | $12.98 | $792,989 | +6.25% | |
| 2007-04-02 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 34,217 0.0381% | $12.74 | $435,942 | +9.07% | |
| 2007-03-30 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 212,640 0.2485% | $13.10 | $2.79M | +7.85% | |
| 2007-03-29 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 43,995 0.0508% | $13.03 | $573,184 | +7.19% | |
| 2007-03-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 64,036 0.0738% | $12.99 | $832,077 | +7.23% | |
| 2007-03-27 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 97,766 0.1131% | $13.02 | $1.27M | +7.39% | |
| 2007-03-26 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 68,437 0.0794% | $12.96 | $887,094 | +8.14% | |
| 2007-03-23 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 60,126 0.0697% | $13.00 | $781,385 | +7.85% | |
| 2007-03-22 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 39,106 0.0448% | $12.79 | $499,994 | +8.26% | |
| 2007-03-21 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 48,882 0.0563% | $12.72 | $621,965 | +9.41% | |
| 2007-03-20 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 50,350 0.0578% | $12.68 | $638,493 | +9.37% | |
| 2007-03-19 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 34,217 0.0395% | $12.36 | $422,874 | +12.71% | |
| 2006-05-18 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 1.42M 3.0189% | $11.30 | $16.02M | -3.45% |