| 2010-09-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 146,548 0.1312% | $8.57 | $1.26M | +43.76% | |
| 2007-04-05 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 991 0.0011% | $12.99 | $12,870 | +7.19% | |
| 2007-04-04 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 1,274 0.0014% | $13.09 | $16,679 | +6.09% | |
| 2007-04-03 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 885 0.001% | $12.98 | $11,485 | +6.25% | |
| 2007-04-02 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 496 0.0006% | $12.74 | $6,319 | +9.07% | |
| 2007-03-30 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 3,080 0.0036% | $13.10 | $40,355 | +7.85% | |
| 2007-03-29 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 637 0.0007% | $13.03 | $8,299 | +7.19% | |
| 2007-03-28 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 927 0.0011% | $12.99 | $12,045 | +7.23% | |
| 2007-03-27 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 1,416 0.0016% | $13.02 | $18,435 | +7.39% | |
| 2007-03-26 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 991 0.0011% | $12.96 | $12,846 | +8.14% | |
| 2007-03-23 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 871 0.001% | $13.00 | $11,319 | +7.85% | |
| 2007-03-22 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 566 0.0006% | $12.79 | $7,237 | +8.26% | |
| 2007-03-21 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 708 0.0008% | $12.72 | $9,008 | +9.41% | |
| 2007-03-20 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 729 0.0008% | $12.68 | $9,245 | +9.37% | |
| 2007-03-19 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 496 0.0006% | $12.36 | $6,130 | +12.71% | |
| 2006-05-18 | Sale | Aspen Technology, Inc. AZPN | Member of group > 10% | 20,531 0.0437% | $11.30 | $232,000 | -3.45% |