| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13G/A | Open Document | Open Filing | NONE | Feb 14, 2023 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | Jun 9, 2022 | 005-44607 | ||
| 15-12B | Open Document | Open Filing | 15-12B | May 26, 2022 | 001-34630 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 18, 2022 | May 16, 2022 | |
| S-8 POS | Open Document | Open Filing | FORM S-8 POS | May 18, 2022 | 333-228978 | |
| S-8 POS | Open Document | Open Filing | FORM S-8 POS | May 18, 2022 | 333-215818 | |
| S-8 POS | Open Document | Open Filing | FORM S-8 POS | May 18, 2022 | 333-169657 | |
| 8-K | Open Document | Data | Open Filing | 8-K | May 17, 2022 | May 16, 2022 | 001-34630 |
| 25-NSE | Open Document | Open Filing | May 16, 2022 | 001-34630 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 11, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2022 | May 12, 2022 | |
| SC 13G | Open Document | Open Filing | May 9, 2022 | 005-44607 | ||
| 425 | Open Document | Open Filing | FORM 425 | May 4, 2022 | 001-34630 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | May 4, 2022 | May 4, 2022 | 001-34630 |
| 425 | Open Document | Open Filing | 425 | May 3, 2022 | 001-34630 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | May 3, 2022 | May 3, 2022 | 001-34630 |
| 425 | Open Document | Open Filing | 425 | May 2, 2022 | 001-34630 | |
| 8-K | Open Document | Data | Open Filing | 8-K | May 2, 2022 | May 2, 2022 | 001-34630 |
| 425 | Open Document | Open Filing | 425 | Apr 28, 2022 | 001-34630 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 27, 2022 | Apr 21, 2022 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 27, 2022 | Apr 27, 2022 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Apr 27, 2022 | Mar 31, 2022 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 22, 2022 | Apr 18, 2022 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 20, 2022 | Apr 18, 2022 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 20, 2022 | Apr 18, 2022 | |
| DEFM14A | Open Document | Open Filing | DEFM14A | Apr 18, 2022 | 001-34630 | |
| 425 | Open Document | Open Filing | 425 | Apr 6, 2022 | 001-34630 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2022 | Mar 31, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2022 | Mar 31, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2022 | Mar 31, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2022 | Mar 31, 2022 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2022 | Mar 31, 2022 | |
| UPLOAD | Open Document | Open Filing | Mar 28, 2022 | |||
| 425 | Open Document | Open Filing | 425 | Mar 22, 2022 | 001-34630 | |
| CORRESP | Open Document | Open Filing | Mar 18, 2022 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 15, 2022 | Mar 13, 2022 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 15, 2022 | Mar 13, 2022 | 001-34630 |
| UPLOAD | Open Document | Open Filing | Mar 8, 2022 | |||
| 425 | Open Document | Open Filing | 425 | Mar 2, 2022 | 001-34630 | |
| SC 13G/A | Open Document | Open Filing | Feb 14, 2022 | 005-44607 | ||
| SC 13G/A | Open Document | Open Filing | NONE | Feb 14, 2022 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Feb 9, 2022 | 005-44607 | |
| 425 | Open Document | Open Filing | FORM 425 | Feb 2, 2022 | 001-34630 | |
| SC 13G/A | Open Document | Open Filing | Feb 1, 2022 | 005-44607 | ||
| 425 | Open Document | Open Filing | 425 | Jan 27, 2022 | 001-34630 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jan 26, 2022 | Jan 26, 2022 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 26, 2022 | Dec 31, 2021 | 001-34630 |
| 425 | Open Document | Open Filing | FORM 425 | Jan 18, 2022 | 001-34630 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2022 | Dec 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2022 | Dec 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2022 | Dec 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2022 | Dec 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2022 | Dec 30, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 22, 2021 | Dec 21, 2021 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 20, 2021 | Dec 14, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 14, 2021 | Dec 10, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 14, 2021 | Dec 10, 2021 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | NONE | Dec 10, 2021 | 005-44607 | |
| 425 | Open Document | Open Filing | 425 | Dec 2, 2021 | 001-34630 | |
| 4 | Open Document | Open Filing | FORM 4 | Nov 22, 2021 | Nov 18, 2021 | |
| 425 | Open Document | Open Filing | 425 | Nov 17, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Nov 3, 2021 | 001-34630 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 28, 2021 | Dec 10, 2021 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 28, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | 425 | Oct 28, 2021 | 001-34630 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Oct 27, 2021 | Oct 27, 2021 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Oct 27, 2021 | Sep 30, 2021 | 001-34630 |
| 425 | Open Document | Open Filing | 425 | Oct 21, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | 425 | Oct 21, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 13, 2021 | 001-34630 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2021 | Oct 10, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2021 | Oct 10, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2021 | Oct 10, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 13, 2021 | Oct 10, 2021 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | FORM 425 | Oct 12, 2021 | 001-34630 | |
| 425 | Open Document | Open Filing | 425 | Oct 12, 2021 | 001-34630 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Oct 12, 2021 | Oct 10, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2021 | Sep 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2021 | Sep 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2021 | Sep 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2021 | Sep 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2021 | Sep 30, 2021 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 15, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2021 | Sep 1, 2021 | |
| 10-K | Open Document | Data | Open Filing | 10-K | Aug 18, 2021 | Jun 30, 2021 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 11, 2021 | Aug 11, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 10, 2021 | Aug 9, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 3, 2021 | Aug 2, 2021 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Jul 29, 2021 | Jul 27, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 23, 2021 | Jul 22, 2021 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 15, 2021 | May 26, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 14, 2021 | Jul 12, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 12, 2021 | Jul 8, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 8, 2021 | Jul 6, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2021 | Jun 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2021 | Jun 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2021 | Jun 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2021 | Jun 30, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2021 | Jun 30, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jun 14, 2021 | Jun 14, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2021 | May 28, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 2, 2021 | May 28, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2021 | May 26, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2021 | May 26, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 28, 2021 | Apr 28, 2021 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Apr 28, 2021 | Mar 31, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 23, 2021 | Apr 21, 2021 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 23, 2021 | Apr 21, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 21, 2021 | Apr 21, 2021 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 19, 2021 | Apr 15, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 15, 2021 | Apr 13, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2021 | Mar 31, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2021 | Mar 31, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2021 | Mar 31, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2021 | Mar 31, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2021 | Mar 22, 2021 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2021 | Mar 22, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2021 | Mar 8, 2021 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 10, 2021 | Mar 8, 2021 | |
| SC 13G/A | Open Document | Open Filing | NONE | Mar 10, 2021 | 005-44607 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 8, 2021 | Mar 8, 2021 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 2, 2021 | Mar 2, 2021 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 12, 2021 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | Feb 12, 2021 | 005-44607 | ||
| 8-K | Open Document | Data | Open Filing | 8-K | Feb 11, 2021 | Feb 10, 2021 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | NONE | Feb 11, 2021 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Feb 10, 2021 | 005-44607 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 8, 2021 | Feb 4, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2021 | Jan 29, 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 2, 2021 | Jan 29, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Feb 1, 2021 | Jan 29, 2021 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | Jan 29, 2021 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2021 | Jan 25, 2021 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jan 27, 2021 | Jan 27, 2021 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 27, 2021 | Dec 31, 2020 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Jan 13, 2021 | 001-34630 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 6, 2021 | Dec 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2021 | Dec 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 30, 2020 | Dec 28, 2020 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | Dec 30, 2020 | 001-34630 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Dec 22, 2020 | Sep 30, 2020 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | Dec 10, 2020 | 005-44607 | ||
| 10-K | Open Document | Data | Open Filing | 10-K | Dec 9, 2020 | Jun 30, 2020 | 001-34630 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Dec 9, 2020 | Jan 29, 2021 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Dec 9, 2020 | 001-34630 | |
| 8-K/A | Open Document | Data | Open Filing | 8-K/A | Nov 25, 2020 | Nov 12, 2020 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 17, 2020 | Nov 12, 2020 | 001-34630 |
| NT 10-Q | Open Document | Open Filing | NT 10-Q | Nov 10, 2020 | Sep 30, 2020 | 001-34630 |
| SC 13G | Open Document | Open Filing | Nov 9, 2020 | 005-44607 | ||
| 8-K | Open Document | Data | Open Filing | 8-K | Nov 5, 2020 | Nov 5, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 28, 2020 | Oct 26, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2020 | Sep 30, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2020 | Sep 30, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2020 | Sep 30, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2020 | Sep 30, 2020 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Sep 23, 2020 | Sep 17, 2020 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Sep 18, 2020 | Sep 14, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 16, 2020 | Sep 14, 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 16, 2020 | Sep 14, 2020 | |
| NT 10-K | Open Document | Open Filing | NT 10-K | Sep 1, 2020 | Jun 30, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2020 | Aug 24, 2020 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Aug 12, 2020 | Aug 12, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 24, 2020 | Jul 22, 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 24, 2020 | Jul 22, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 24, 2020 | Jul 22, 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 24, 2020 | Jul 22, 2020 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jul 23, 2020 | Jul 22, 2020 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Jul 22, 2020 | Jul 22, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2020 | Jun 30, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2020 | Jun 30, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2020 | Jun 30, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2020 | Jun 30, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2020 | May 26, 2020 | |
| 8-K | Open Document | Data | Open Filing | 8-K | May 21, 2020 | May 19, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2020 | May 20, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 19, 2020 | May 15, 2020 | |
| SC 13G | Open Document | Open Filing | May 11, 2020 | 005-44607 | ||
| 8-K | Open Document | Data | Open Filing | 8-K | May 6, 2020 | May 6, 2020 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 6, 2020 | Mar 31, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2020 | Apr 27, 2020 | |
| UPLOAD | Open Document | Open Filing | Apr 15, 2020 | |||
| CORRESP | Open Document | Open Filing | Apr 3, 2020 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2020 | Mar 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2020 | Mar 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2020 | Mar 31, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2020 | Mar 31, 2020 | |
| UPLOAD | Open Document | Open Filing | Mar 26, 2020 | |||
| CORRESP | Open Document | Open Filing | Mar 13, 2020 | |||
| 8-K | Open Document | Data | Open Filing | 8-K | Mar 4, 2020 | Mar 1, 2020 | 001-34630 |
| UPLOAD | Open Document | Open Filing | Mar 3, 2020 | |||
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 14, 2020 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | NONE | Feb 14, 2020 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | Feb 13, 2020 | 005-44607 | ||
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | Feb 12, 2020 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | Feb 5, 2020 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 29, 2020 | Jan 27, 2020 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jan 29, 2020 | Jan 29, 2020 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 29, 2020 | Dec 31, 2019 | 001-34630 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2020 | Jan 14, 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 27, 2020 | Jan 14, 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2020 | Jan 13, 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 15, 2020 | Jan 13, 2020 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Jan 15, 2020 | Jan 13, 2020 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2020 | Dec 31, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2020 | Dec 31, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2020 | Dec 31, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2020 | Dec 31, 2019 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 23, 2019 | Dec 23, 2019 | 001-34630 |
| 8-K | Open Document | Data | Open Filing | 8-K | Dec 12, 2019 | Dec 12, 2019 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Dec 3, 2019 | 001-34630 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 30, 2019 | Oct 28, 2019 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Oct 30, 2019 | Oct 30, 2019 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Oct 30, 2019 | Sep 30, 2019 | 001-34630 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 28, 2019 | Dec 12, 2019 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 28, 2019 | 001-34630 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2019 | Sep 30, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2019 | Sep 30, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2019 | Sep 30, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2019 | Sep 30, 2019 | |
| 10-K | Open Document | Data | Open Filing | 10-K | Sep 10, 2019 | Jun 30, 2019 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Sep 10, 2019 | Sep 5, 2019 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2019 | Sep 3, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Sep 3, 2019 | Sep 3, 2019 | 001-34630 |
| NT 10-K | Open Document | Open Filing | NT 10-K | Aug 30, 2019 | Jun 30, 2019 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 14, 2019 | Aug 12, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 8, 2019 | Aug 2, 2019 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Aug 7, 2019 | Aug 7, 2019 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Jul 26, 2019 | Jul 25, 2019 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Jul 16, 2019 | Jul 12, 2019 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2019 | Jun 28, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2019 | Jun 28, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2019 | Jun 28, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2019 | Jun 28, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 8, 2019 | May 6, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 6, 2019 | May 2, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 3, 2019 | May 1, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2019 | Apr 29, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 1, 2019 | Apr 29, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Apr 24, 2019 | Apr 24, 2019 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Apr 24, 2019 | Mar 31, 2019 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 19, 2019 | Apr 17, 2019 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 19, 2019 | Apr 17, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Apr 18, 2019 | Apr 17, 2019 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2019 | Mar 29, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2019 | Mar 29, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2019 | Mar 29, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2019 | Mar 29, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 22, 2019 | Feb 20, 2019 | |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 14, 2019 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | NONE | Feb 13, 2019 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | NONE | Feb 12, 2019 | 005-44607 | |
| SC 13G | Open Document | Open Filing | Feb 12, 2019 | 005-44607 | ||
| SC 13G/A | Open Document | Open Filing | Feb 11, 2019 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 5, 2019 | Feb 1, 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2019 | Jan 31, 2019 | |
| SC 13G/A | Open Document | Open Filing | Feb 4, 2019 | 005-44607 | ||
| 8-K | Open Document | Open Filing | 8-K | Feb 1, 2019 | Jan 31, 2019 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2019 | Jan 28, 2019 | |
| 8-K | Open Document | Open Filing | 8-K | Jan 23, 2019 | Jan 23, 2019 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 23, 2019 | Dec 31, 2018 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2019 | Dec 31, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2019 | Dec 31, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2019 | Dec 31, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2019 | Dec 31, 2018 | |
| S-8 | Open Document | Open Filing | S-8 | Dec 21, 2018 | 333-228978 | |
| 8-K | Open Document | Open Filing | 8-K | Dec 10, 2018 | Dec 7, 2018 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 26, 2018 | Nov 21, 2018 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | Nov 26, 2018 | 001-34630 | |
| SC 13G/A | Open Document | Open Filing | Nov 13, 2018 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 1, 2018 | Oct 30, 2018 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 26, 2018 | Dec 7, 2018 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 26, 2018 | 001-34630 | |
| 8-K | Open Document | Open Filing | 8-K | Oct 24, 2018 | Oct 24, 2018 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Oct 24, 2018 | Sep 30, 2018 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2018 | Sep 28, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2018 | Sep 28, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2018 | Sep 28, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2018 | Sep 28, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2018 | Sep 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 24, 2018 | Aug 22, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 22, 2018 | Aug 20, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2018 | Aug 13, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2018 | Aug 13, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2018 | Aug 13, 2018 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 10, 2018 | Aug 6, 2018 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 8, 2018 | Aug 6, 2018 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 8, 2018 | Aug 6, 2018 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 8, 2018 | Aug 8, 2018 | 001-34630 |
| 10-K | Open Document | Data | Open Filing | 10-K | Aug 8, 2018 | Jun 30, 2018 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Jul 27, 2018 | Jul 26, 2018 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 3, 2018 | Jun 29, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 3, 2018 | Jun 29, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 3, 2018 | Jun 29, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 5, 2018 | Jun 1, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2018 | May 24, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 25, 2018 | May 23, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 8, 2018 | May 4, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 4, 2018 | May 2, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 2, 2018 | Apr 30, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 2, 2018 | Apr 30, 2018 | |
| 8-K | Open Document | Open Filing | 8-K | Apr 25, 2018 | Apr 25, 2018 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Apr 25, 2018 | Mar 31, 2018 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2018 | Mar 29, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2018 | Mar 29, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2018 | Mar 29, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2018 | Feb 16, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 15, 2018 | Feb 14, 2018 | |
| SC 13G | Open Document | Open Filing | NONE | Feb 15, 2018 | 005-44607 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2018 | Feb 12, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2018 | Feb 12, 2018 | |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 14, 2018 | 005-44607 | |
| SC 13G | Open Document | Open Filing | NONE | Feb 13, 2018 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | Feb 12, 2018 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2018 | Feb 7, 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2018 | Feb 7, 2018 | |
| 8-K | Open Document | Open Filing | 8-K | Feb 5, 2018 | Feb 5, 2018 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | Jan 29, 2018 | 005-44607 | ||
| 8-K | Open Document | Open Filing | 8-K | Jan 24, 2018 | Jan 24, 2018 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 24, 2018 | Dec 31, 2017 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Dec 29, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Dec 29, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2018 | Dec 29, 2017 | |
| 8-K | Open Document | Open Filing | 8-K | Dec 11, 2017 | Dec 8, 2017 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 7, 2017 | Nov 3, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2017 | Nov 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2017 | Nov 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2017 | Oct 31, 2017 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 30, 2017 | Dec 8, 2017 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 30, 2017 | 001-34630 | |
| 8-K | Open Document | Open Filing | 8-K | Oct 26, 2017 | Oct 26, 2017 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Oct 26, 2017 | Sep 30, 2017 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 3, 2017 | Sep 29, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 3, 2017 | Sep 29, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 3, 2017 | Sep 29, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2017 | Sep 1, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 25, 2017 | Aug 23, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 17, 2017 | Aug 15, 2017 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 10, 2017 | Aug 10, 2017 | 001-34630 |
| 10-K | Open Document | Data | Open Filing | 10-K | Aug 10, 2017 | Jun 30, 2017 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Jul 19, 2017 | Jul 13, 2017 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2017 | Jun 30, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2017 | Jun 30, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2017 | Jun 30, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2017 | Jun 30, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 15, 2017 | Jun 13, 2017 | |
| 8-K | Open Document | Open Filing | 8-K | May 2, 2017 | May 2, 2017 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | May 2, 2017 | Mar 31, 2017 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 5, 2017 | Apr 3, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2017 | Mar 31, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2017 | Mar 31, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2017 | Mar 31, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2017 | Mar 31, 2017 | |
| SC 13G/A | Open Document | Open Filing | Mar 10, 2017 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2017 | Feb 27, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 21, 2017 | Feb 17, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 17, 2017 | Feb 16, 2017 | |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 14, 2017 | 005-44607 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2017 | Feb 10, 2017 | |
| SC 13G/A | Open Document | Open Filing | SEC SCHEDULE 13G | Feb 10, 2017 | 005-44607 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 9, 2017 | Feb 8, 2017 | |
| SC 13G/A | Open Document | Open Filing | Feb 9, 2017 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2017 | Feb 6, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 7, 2017 | Feb 6, 2017 | |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 3, 2017 | 005-44607 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2017 | Jan 31, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2017 | Jan 31, 2017 | |
| S-8 | Open Document | Open Filing | S-8 | Jan 31, 2017 | 333-215818 | |
| 8-K | Open Document | Open Filing | 8-K | Jan 26, 2017 | Jan 26, 2017 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 26, 2017 | Dec 31, 2016 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | Jan 19, 2017 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2017 | Jan 4, 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2017 | Dec 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2017 | Dec 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2017 | Dec 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 4, 2017 | Dec 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 22, 2016 | Dec 20, 2016 | |
| 8-K | Open Document | Open Filing | 8-K | Dec 12, 2016 | Dec 8, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 5, 2016 | Oct 7, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 21, 2016 | Nov 18, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2016 | Nov 17, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 7, 2016 | Nov 4, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 4, 2016 | Nov 3, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2016 | Nov 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2016 | Nov 1, 2016 | |
| 8-K | Open Document | Open Filing | 8-K | Oct 27, 2016 | Oct 27, 2016 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Oct 27, 2016 | Sep 30, 2016 | 001-34630 |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 26, 2016 | Dec 8, 2016 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 26, 2016 | 001-34630 | |
| 8-K | Open Document | Open Filing | 8-K | Oct 24, 2016 | Oct 19, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 7, 2016 | Oct 5, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2016 | Sep 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2016 | Sep 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2016 | Sep 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 4, 2016 | Sep 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 7, 2016 | Sep 6, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 6, 2016 | Sep 1, 2016 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 30, 2016 | Aug 29, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 29, 2016 | Aug 25, 2016 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 11, 2016 | Aug 11, 2016 | 001-34630 |
| 10-K | Open Document | Data | Open Filing | 10-K | Aug 11, 2016 | Jun 30, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 25, 2016 | Jul 21, 2016 | |
| 8-K | Open Document | Open Filing | 8-K | Jul 25, 2016 | Jul 21, 2016 | 001-34630 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 25, 2016 | Jul 21, 2016 | |
| 8-K | Open Document | Open Filing | 8-K | Jul 22, 2016 | Jul 21, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2016 | Jun 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2016 | Jun 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2016 | Jun 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 5, 2016 | Jun 30, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 13, 2016 | Jun 10, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 8, 2016 | Jun 6, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 9, 2016 | May 5, 2016 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 29, 2016 | Apr 20, 2016 | |
| 8-K | Open Document | Data | Open Filing | 8-K | Apr 28, 2016 | Apr 28, 2016 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Apr 28, 2016 | Mar 31, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2016 | Mar 31, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2016 | Mar 31, 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 4, 2016 | Mar 31, 2016 | |
| 8-K | Open Document | Open Filing | 8-K | Feb 29, 2016 | Feb 26, 2016 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Feb 18, 2016 | Feb 17, 2016 | 001-34630 |
| SC 13G | Open Document | Open Filing | SEC SCHEDULE 13G | Feb 16, 2016 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 12, 2016 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | Feb 10, 2016 | 005-44607 | ||
| SC 13G | Open Document | Open Filing | ASPEN TECHNOLOGY INC | Feb 2, 2016 | 005-44607 | |
| 8-K | Open Document | Open Filing | 8-K | Jan 28, 2016 | Jan 28, 2016 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 28, 2016 | Dec 31, 2015 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | Jan 25, 2016 | 005-44607 | ||
| 8-K | Open Document | Open Filing | 8-K | Jan 19, 2016 | Jan 12, 2016 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Dec 31, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Dec 31, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2016 | Dec 31, 2015 | |
| 8-K | Open Document | Open Filing | 8-K | Dec 11, 2015 | Dec 11, 2015 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Nov 13, 2015 | Nov 13, 2015 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Nov 13, 2015 | 001-34630 | |
| 8-K | Open Document | Open Filing | 8-K | Oct 29, 2015 | Oct 29, 2015 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Oct 29, 2015 | Sep 30, 2015 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 23, 2015 | 001-34630 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 23, 2015 | Dec 10, 2015 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2015 | Sep 30, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2015 | Sep 30, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2015 | Sep 30, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2015 | Oct 1, 2015 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 1, 2015 | Oct 1, 2015 | |
| 8-K | Open Document | Open Filing | 8-K | Sep 28, 2015 | Sep 28, 2015 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 26, 2015 | Aug 25, 2015 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 13, 2015 | Aug 13, 2015 | 001-34630 |
| 10-K | Open Document | Data | Open Filing | 10-K | Aug 13, 2015 | Jun 30, 2015 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2015 | Aug 3, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2015 | Aug 3, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2015 | Aug 3, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2015 | Aug 3, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2015 | Aug 3, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2015 | Aug 3, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2015 | Aug 3, 2015 | |
| 8-K | Open Document | Open Filing | 8-K | Jul 24, 2015 | Jul 22, 2015 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Jul 21, 2015 | Jul 20, 2015 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2015 | Jun 30, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2015 | Jun 30, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2015 | Jun 30, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 1, 2015 | Jun 30, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2015 | Jun 2, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 4, 2015 | Jun 3, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2015 | Jun 1, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 3, 2015 | Jun 1, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2015 | May 27, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 29, 2015 | May 27, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 26, 2015 | May 22, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 26, 2015 | May 22, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2015 | May 21, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 21, 2015 | May 19, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2015 | May 19, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 20, 2015 | May 18, 2015 | |
| UPLOAD | Open Document | Open Filing | May 12, 2015 | |||
| 8-K | Open Document | Open Filing | 8-K | Apr 28, 2015 | Apr 27, 2015 | 001-34630 |
| 8-K | Open Document | Open Filing | 8-K | Apr 28, 2015 | Apr 28, 2015 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Apr 28, 2015 | Mar 31, 2015 | 001-34630 |
| CORRESP | Open Document | Open Filing | Apr 3, 2015 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2015 | Mar 31, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2015 | Mar 31, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2015 | Mar 31, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2015 | Mar 31, 2015 | |
| UPLOAD | Open Document | Open Filing | Mar 20, 2015 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2015 | Feb 19, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2015 | Feb 17, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 19, 2015 | Feb 17, 2015 | |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 13, 2015 | 005-44607 | |
| SC 13G/A | Open Document | Open Filing | Feb 10, 2015 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 5, 2015 | Feb 4, 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 4, 2015 | Feb 3, 2015 | |
| 8-K | Open Document | Open Filing | 8-K | Jan 28, 2015 | Jan 28, 2015 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 28, 2015 | Dec 31, 2014 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | Jan 22, 2015 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Dec 31, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Dec 31, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Dec 31, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2015 | Dec 31, 2014 | |
| 8-K | Open Document | Open Filing | 8-K | Dec 5, 2014 | Dec 4, 2014 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2014 | Nov 17, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2014 | Nov 11, 2014 | |
| 8-K | Open Document | Open Filing | 8-K | Oct 28, 2014 | Oct 28, 2014 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Oct 28, 2014 | Sep 30, 2014 | 001-34630 |
| DEFA14A | Open Document | Open Filing | DEFA14A | Oct 24, 2014 | 001-34630 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | Oct 24, 2014 | Dec 4, 2014 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2014 | Sep 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2014 | Sep 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2014 | Sep 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 2, 2014 | Sep 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 8, 2014 | Sep 5, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 5, 2014 | Sep 3, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 3, 2014 | Sep 2, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2014 | Aug 25, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 27, 2014 | Aug 26, 2014 | |
| 8-K | Open Document | Open Filing | 8-K | Aug 13, 2014 | Aug 13, 2014 | 001-34630 |
| 10-K | Open Document | Data | Open Filing | 10-K | Aug 13, 2014 | Jun 30, 2014 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2014 | Aug 1, 2014 | |
| 8-K | Open Document | Open Filing | 8-K | Jul 25, 2014 | Jul 23, 2014 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jun 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jun 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jun 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 2, 2014 | Jun 30, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2014 | Jun 5, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 6, 2014 | Jun 4, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 30, 2014 | May 28, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2014 | May 23, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2014 | May 23, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 28, 2014 | May 23, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 22, 2014 | May 20, 2014 | |
| 8-K | Open Document | Open Filing | 8-K | Apr 29, 2014 | Apr 29, 2014 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Apr 29, 2014 | Mar 31, 2014 | 001-34630 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2014 | Mar 31, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2014 | Mar 31, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2014 | Mar 31, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 2, 2014 | Mar 31, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 26, 2014 | Feb 25, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 24, 2014 | Feb 20, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 20, 2014 | Feb 18, 2014 | |
| SC 13G/A | Open Document | Open Filing | Feb 14, 2014 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 13, 2014 | Feb 11, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 12, 2014 | Feb 10, 2014 | |
| SC 13G/A | Open Document | Open Filing | Feb 11, 2014 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2014 | Feb 6, 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 10, 2014 | Feb 6, 2014 | |
| SC 13G/A | Open Document | Open Filing | ASPEN TECHNOLOGY, INC. | Feb 7, 2014 | 005-44607 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 6, 2014 | Feb 4, 2014 | |
| 8-K | Open Document | Open Filing | 8-K | Jan 30, 2014 | Jan 30, 2014 | 001-34630 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | Jan 30, 2014 | Dec 31, 2013 | 001-34630 |
| SC 13G/A | Open Document | Open Filing | Jan 28, 2014 | 005-44607 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Dec 31, 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Dec 31, 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Dec 31, 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 3, 2014 | Dec 31, 2013 |