| Dec 31, 2018 FForm 4 → | Jan 3, 2019, 4:44 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 911 | $80.97 | $73,764 | 23,030 | — | plan? |
| Sep 28, 2018 FForm 4 → | Oct 2, 4:35 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 911 | $113.13 | $103,061 | 23,941 | — | plan? |
| Sep 4, 2018 AForm 4 → | Sep 6, 5:11 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 5,851 | — | — | 24,852 | — | plan? |
| Aug 13, 2018 SForm 4 → | Aug 15, 4:33 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 3,311 | $107.51 | $355,966 | 19,001 | −14.8% | plan? |
| Aug 13, 2018 MForm 4 → | Aug 15, 4:33 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 1,733 | $44.56 | $77,230 | 22,312 | — | plan? |
| Jun 29, 2018 FForm 4 → | Jul 3, 3:42 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 989 | $94.26 | $93,223 | 20,579 | — | plan? |
| May 2, 2018 SForm 4 → | May 4, 4:09 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 16,024 | $88.00 | $1,410,112 | 21,568 | −42.6% | plan? |
| May 2, 2018 MForm 4 → | May 4, 4:09 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 14,439 | $43.74 | $631,622 | 25,238 | — | plan? |
| Mar 29, 2018 FForm 4 → | Apr 2, 4:38 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 656 | $77.54 | $50,866 | 23,153 | — | plan? |
| Feb 13, 2018 SForm 4 → | Feb 15, 4:49 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 6,292 | $73.47 | $462,264 | 23,809 | −20.9% | plan? |
| Feb 13, 2018 MForm 4 → | Feb 15, 4:49 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 4,715 | $43.44 | $204,820 | 26,167 | — | plan? |
| Dec 29, 2017 FForm 4 → | Jan 3, 2018, 4:16 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 722 | $66.37 | $47,919 | 25,386 | — | plan? |
| Nov 1, 2017 SForm 4 → | Nov 3, 4:17 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 1,578 | $65.00 | $102,570 | 26,108 | −5.70% | plan? |
| Sep 29, 2017 FForm 4 → | Oct 3, 4:45 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 722 | $62.64 | $45,226 | 27,686 | — | plan? |
| Sep 1, 2017 AForm 4 → | Sep 6, 5:35 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 8,063 | — | — | 28,408 | — | plan? |
| Aug 23, 2017 SForm 4 → | Aug 25, 4:28 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 3,388 | $60.60 | $205,321 | 20,345 | −14.3% | plan? |
| Jun 30, 2017 FForm 4 → | Jul 5, 5:55 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 761 | $54.42 | $41,414 | 23,733 | — | plan? |
| Mar 31, 2017 FForm 4 → | Apr 4, 4:21 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 754 | $58.91 | $44,418 | 24,494 | — | plan? |
| Feb 6, 2017 SForm 4 → | Feb 7, 4:47 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 1,808 | $54.67 | $98,834 | 25,248 | −6.68% | plan? |
| Jan 31, 2017 MForm 4 → | Feb 1, 4:46 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 2,370 | $32.54 | $77,120 | 29,426 | — | plan? |
| Jan 31, 2017 SForm 4 → | Feb 1, 4:46 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 6,912 | $53.00 | $366,336 | 27,056 | −20.3% | plan? |
| Dec 30, 2016 FForm 4 → | Jan 4, 2017, 4:31 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 761 | $54.75 | $41,665 | 31,598 | — | plan? |
| Nov 3, 2016 SForm 4 → | Nov 4, 4:15 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 2,254 | $48.05 | $108,302 | 32,359 | −6.51% | plan? |
| Nov 1, 2016 SForm 4 → | Nov 3, 7:02 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 5,736 | $49.10 | $281,609 | 34,613 | −14.2% | plan? |
| Sep 30, 2016 FForm 4 → | Oct 4, 4:54 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 761 | $47.00 | $35,767 | 40,349 | — | plan? |
| Sep 7, 2016 SForm 4 → | Sep 7, 5:00 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 18,542 | $45.91 | $851,215 | 41,110 | −31.1% | plan? |
| Sep 6, 2016 MForm 4 → | Sep 7, 5:00 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 11,744 | $26.58 | $312,126 | 59,652 | — | plan? |
| Sep 1, 2016 AForm 4 → | Sep 6, 5:01 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 9,899 | — | — | 47,908 | — | plan? |
| Jun 30, 2016 FForm 4 → | Jul 5, 5:10 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 813 | $39.37 | $32,008 | 38,009 | — | plan? |
| Mar 31, 2016 FForm 4 → | Apr 4, 4:33 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 793 | $35.95 | $28,508 | 38,822 | — | plan? |
| Dec 31, 2015 FForm 4 → | Jan 5, 2016, 4:31 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 814 | $38.10 | $31,013 | 39,615 | — | plan? |
| Sep 30, 2015 FForm 4 → | Oct 2, 4:05 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 814 | $37.12 | $30,216 | 40,429 | — | plan? |
| Aug 3, 2015 AForm 4 → | Aug 5, 5:13 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 8,872 | — | — | 41,243 | — | plan? |
| Jun 30, 2015 FForm 4 → | Jul 1, 7:57 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 1,014 | $45.03 | $45,660 | 32,371 | — | plan? |
| Jun 2, 2015 SForm 4 → | Jun 4, 5:41 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 2,442 | $43.50 | $106,227 | 33,385 | −6.82% | plan? |
| May 27, 2015 SForm 4 → | May 29, 5:07 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 2,911 | $43.50 | $126,629 | 35,827 | −7.51% | plan? |
| May 19, 2015 SForm 4 → | May 21, 5:10 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 5,196 | $43.86 | $227,917 | 38,738 | −11.8% | plan? |
| May 19, 2015 MForm 4 → | May 21, 5:10 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 5,196 | $14.37 | $74,643 | 43,934 | — | plan? |
| Mar 31, 2015 FForm 4 → | Apr 2, 4:04 pm EDT | ASPEN TECHNOLOGY INC /DE/AZPN | 1,001 | $38.69 | $38,729 | 38,738 | — | plan? |
| Dec 31, 2014 FForm 4 → | Jan 5, 2015, 4:14 pm EST | ASPEN TECHNOLOGY INC /DE/AZPN | 1,017 | $35.55 | $36,154 | 39,739 | — | plan? |