| 2010-09-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 2.65M 2.3713% | $8.57 | $22.7M | +43.76% | |
| 2007-04-05 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 17,920 0.02% | $12.99 | $232,723 | +7.19% | |
| 2007-04-04 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 23,040 0.0257% | $13.09 | $301,630 | +6.09% | |
| 2007-04-03 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 16,000 0.0177% | $12.98 | $207,646 | +6.25% | |
| 2007-04-02 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 8,960 0.01% | $12.74 | $114,155 | +9.07% | |
| 2007-03-30 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 55,681 0.0651% | $13.10 | $729,549 | +7.85% | |
| 2007-03-29 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 11,520 0.0133% | $13.03 | $150,087 | +7.19% | |
| 2007-03-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 16,768 0.0193% | $12.99 | $217,882 | +7.23% | |
| 2007-03-27 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 25,600 0.0296% | $13.02 | $333,294 | +7.39% | |
| 2007-03-26 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 17,920 0.0208% | $12.96 | $232,283 | +8.14% | |
| 2007-03-23 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 15,744 0.0183% | $13.00 | $204,606 | +7.85% | |
| 2007-03-22 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 10,240 0.0117% | $12.79 | $130,925 | +8.26% | |
| 2007-03-21 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 12,800 0.0147% | $12.72 | $162,865 | +9.41% | |
| 2007-03-20 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 13,184 0.0151% | $12.68 | $167,188 | +9.37% | |
| 2007-03-19 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 8,960 0.0103% | $12.36 | $110,733 | +12.71% | |
| 2006-05-18 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 371,206 0.7905% | $11.30 | $4.19M | -3.45% |