| 2010-09-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 1.34M 1.1975% | $8.57 | $11.47M | +43.76% | |
| 2007-04-05 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 9,049 0.0101% | $12.99 | $117,518 | +7.19% | |
| 2007-04-04 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 11,635 0.013% | $13.09 | $152,321 | +6.09% | |
| 2007-04-03 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 8,080 0.0089% | $12.98 | $104,861 | +6.25% | |
| 2007-04-02 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 4,525 0.005% | $12.74 | $57,651 | +9.07% | |
| 2007-03-30 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 28,118 0.0329% | $13.10 | $368,410 | +7.85% | |
| 2007-03-29 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 5,817 0.0067% | $13.03 | $75,786 | +7.19% | |
| 2007-03-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 8,468 0.0098% | $12.99 | $110,032 | +7.23% | |
| 2007-03-27 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 12,928 0.015% | $13.02 | $168,314 | +7.39% | |
| 2007-03-26 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 9,049 0.0105% | $12.96 | $117,295 | +8.14% | |
| 2007-03-23 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 7,951 0.0092% | $13.00 | $103,330 | +7.85% | |
| 2007-03-22 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 5,171 0.0059% | $12.79 | $66,114 | +8.26% | |
| 2007-03-21 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 6,464 0.0074% | $12.72 | $82,247 | +9.41% | |
| 2007-03-20 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 6,658 0.0076% | $12.68 | $84,431 | +9.37% | |
| 2007-03-19 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 4,525 0.0052% | $12.36 | $55,923 | +12.71% | |
| 2006-05-18 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 187,452 0.3992% | $11.30 | $2.12M | -3.45% |