| 2017-05-03 | Sale | NCS Multistage Holdings, Inc. NCSM | director | 2.75M 4.6691% | $15.94 | $43.83M | -3.98% | |
| 2010-09-28 | Sale | Aspen Technology, Inc. AZPN | director | 1,601 0.0014% | $8.57 | $13,719 | +43.76% | |
| 2007-04-05 | Sale | Aspen Technology, Inc. AZPN | director | 11 <0.0001% | $12.99 | $143 | +7.19% | |
| 2007-04-04 | Sale | Aspen Technology, Inc. AZPN | director | 14 <0.0001% | $13.09 | $183 | +6.09% | |
| 2007-04-03 | Sale | Aspen Technology, Inc. AZPN | director | 10 <0.0001% | $12.98 | $130 | +6.25% | |
| 2007-04-02 | Sale | Aspen Technology, Inc. AZPN | director | 5 <0.0001% | $12.74 | $64 | +9.07% | |
| 2007-03-30 | Sale | Aspen Technology, Inc. AZPN | director | 34 <0.0001% | $13.10 | $445 | +7.85% | |
| 2007-03-29 | Sale | Aspen Technology, Inc. AZPN | director | 7 <0.0001% | $13.03 | $91 | +7.19% | |
| 2007-03-28 | Sale | Aspen Technology, Inc. AZPN | director | 10 <0.0001% | $12.99 | $130 | +7.23% | |
| 2007-03-27 | Sale | Aspen Technology, Inc. AZPN | director | 15 <0.0001% | $13.02 | $195 | +7.39% | |
| 2007-03-26 | Sale | Aspen Technology, Inc. AZPN | director | 11 <0.0001% | $12.96 | $143 | +8.14% | |
| 2007-03-23 | Sale | Aspen Technology, Inc. AZPN | director | 10 <0.0001% | $13.00 | $130 | +7.85% | |
| 2007-03-22 | Sale | Aspen Technology, Inc. AZPN | director | 6 <0.0001% | $12.79 | $77 | +8.26% | |
| 2007-03-21 | Sale | Aspen Technology, Inc. AZPN | director | 8 <0.0001% | $12.72 | $102 | +9.41% | |
| 2007-03-20 | Sale | Aspen Technology, Inc. AZPN | director | 8 <0.0001% | $12.72 | $102 | +9.37% | |
| 2007-03-19 | Sale | Aspen Technology, Inc. AZPN | director | 5 <0.0001% | $12.36 | $62 | +12.71% |