| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| 10-Q | Report | Data | 10-Q | Aug 1, 2024 | Jun 30, 2024 |
| 8-K | Report | Data | 8-K | Aug 1, 2024 | Aug 1, 2024 |
| SC 13G/A | Report | Jul 8, 2024 | ||
| 8-K | Report | Data | 8-K | Jun 4, 2024 | Jun 3, 2024 |
| 8-K | Report | Data | 8-K | May 16, 2024 | May 16, 2024 |
| 10-Q | Report | Data | 10-Q | May 2, 2024 | Mar 31, 2024 |
| 8-K | Report | Data | 8-K | May 2, 2024 | May 2, 2024 |
| 10-K | Report | Data | 10-K | Feb 22, 2024 | Dec 31, 2023 |
| 8-K | Report | Data | 8-K | Feb 22, 2024 | Feb 22, 2024 |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 13, 2024 | |
| SC 13G/A | Report | ALTAIR ENGINEERING, INC. | Feb 13, 2024 | |
| SC 13G/A | Report | SC 13G/A | Feb 13, 2024 | |
| SC 13G/A | Report | SC 13G/A | Feb 13, 2024 | |
| SC 13G | Report | Jan 31, 2024 | ||
| SC 13G/A | Report | Jan 25, 2024 | ||
| 10-Q | Report | Data | 10-Q | Nov 2, 2023 | Sep 30, 2023 |
| 8-K | Report | Data | 8-K | Nov 2, 2023 | Nov 2, 2023 |
| 10-Q | Report | Data | 10-Q | Aug 3, 2023 | Jun 30, 2023 |
| 8-K | Report | Data | 8-K | Aug 3, 2023 | Aug 3, 2023 |
| SC 13G/A | Report | SCHEDULE 13G/A | Jun 9, 2023 | |
| 8-K | Report | Data | 8-K | Jun 8, 2023 | Jun 6, 2023 |
| 8-K | Report | Data | 8-K | May 31, 2023 | May 31, 2023 |
| 10-Q | Report | Data | 10-Q | May 4, 2023 | Mar 31, 2023 |
| 8-K | Report | Data | 8-K | May 4, 2023 | May 4, 2023 |
| 10-K | Report | Data | 10-K | Feb 24, 2023 | Dec 31, 2022 |
| 8-K | Report | Data | 8-K | Feb 23, 2023 | Feb 23, 2023 |
| SC 13G/A | Report | ALTAIR ENGINEERING, INC. | Feb 13, 2023 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 9, 2023 | |
| SC 13G/A | Report | SC 13G/A | Feb 6, 2023 | |
| SC 13G/A | Report | SC 13G/A | Feb 6, 2023 | |
| SC 13G/A | Report | Jan 31, 2023 | ||
| 8-K | Report | Data | 8-K | Jan 4, 2023 | Dec 30, 2022 |
| 8-K | Report | Data | 8-K | Nov 10, 2022 | Nov 7, 2022 |
| 10-Q | Report | Data | 10-Q | Nov 4, 2022 | Sep 30, 2022 |
| 8-K | Report | Data | 8-K | Nov 3, 2022 | Nov 3, 2022 |
| 8-K | Report | Data | 8-K | Oct 3, 2022 | Sep 30, 2022 |
| 8-K | Report | Data | 8-K | Sep 16, 2022 | Sep 16, 2022 |
| 8-K | Report | Data | FORM 8-K | Sep 13, 2022 | Sep 13, 2022 |
| 8-K | Report | Data | 8-K | Aug 23, 2022 | Aug 17, 2022 |
| 10-Q | Report | Data | 10-Q | Aug 4, 2022 | Jun 30, 2022 |
| 8-K | Report | Data | 8-K | Aug 4, 2022 | Aug 4, 2022 |
| 8-K | Report | Data | 8-K | Jun 24, 2022 | Jun 24, 2022 |
| 8-K | Report | Data | 8-K | Jun 24, 2022 | Jun 18, 2022 |
| 8-K | Report | Data | 8-K | Jun 15, 2022 | Jun 14, 2022 |
| 8-K | Report | Data | 8-K | Jun 10, 2022 | Jun 9, 2022 |
| 8-K | Report | Data | 8-K | May 12, 2022 | May 11, 2022 |
| 10-Q | Report | Data | 10-Q | May 5, 2022 | Mar 31, 2022 |
| 8-K | Report | Data | 8-K | May 5, 2022 | May 5, 2022 |
| 10-K | Report | Data | 10-K | Feb 28, 2022 | Dec 31, 2021 |
| 8-K | Report | Data | 2021 8-K FY 2021 EARNINGS RELEASE | Feb 24, 2022 | Feb 21, 2022 |
| SC 13G/A | Report | Feb 14, 2022 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 9, 2022 | |
| SC 13G/A | Report | SC 13G/A | Feb 8, 2022 | |
| SC 13G/A | Report | SC 13G/A | Feb 8, 2022 | |
| SC 13G/A | Report | Feb 3, 2022 | ||
| 8-K | Report | Data | 8-K | Dec 15, 2021 | Dec 15, 2021 |
| 8-K | Report | Data | 8-K | Dec 10, 2021 | Dec 9, 2021 |
| 10-Q | Report | Data | 10-Q | Nov 4, 2021 | Sep 30, 2021 |
| 8-K | Report | Data | 8-K | Nov 4, 2021 | Nov 4, 2021 |
| 8-K | Report | Data | 8-K | Sep 27, 2021 | Sep 27, 2021 |
| 10-Q | Report | Data | 10-Q | Aug 5, 2021 | Jun 30, 2021 |
| 8-K | Report | Data | 8-K | Aug 5, 2021 | Aug 5, 2021 |
| 8-K | Report | Data | 8-K | Jul 16, 2021 | Jul 13, 2021 |
| 8-K | Report | Data | 8-K | Jun 2, 2021 | Jun 2, 2021 |
| 10-Q | Report | Data | 10-Q | May 6, 2021 | Mar 31, 2021 |
| 8-K | Report | Data | 8-K | May 6, 2021 | May 6, 2021 |
| 8-K | Report | Data | 8-K | Mar 17, 2021 | Mar 17, 2021 |
| 10-K | Report | Data | 10-K | Feb 26, 2021 | Dec 31, 2020 |
| 8-K | Report | Data | 8-K | Feb 25, 2021 | Feb 25, 2021 |
| SC 13G/A | Report | ALTAIR ENGINEERING INC. | Feb 16, 2021 | |
| SC 13G/A | Report | SC 13G/A | Feb 16, 2021 | |
| SC 13G/A | Report | SC 13G/A | Feb 16, 2021 | |
| SC 13G/A | Report | NONE | Feb 11, 2021 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 10, 2021 | |
| SC 13G/A | Report | Jan 29, 2021 | ||
| 8-K | Report | Data | 8-K | Jan 27, 2021 | Jan 23, 2021 |
| 8-K | Report | Data | 8-K | Jan 19, 2021 | Jan 15, 2021 |
| 8-K | Report | Data | 8-K | Jan 7, 2021 | Jan 4, 2021 |
| SC 13G/A | Report | CONESTOGA CAPITAL ADVISORS | Jan 6, 2021 | |
| 8-K | Report | Data | 8-K | Dec 8, 2020 | Dec 4, 2020 |
| 10-Q | Report | Data | 10-Q | Nov 5, 2020 | Sep 30, 2020 |
| 8-K | Report | Data | 8-K | Nov 5, 2020 | Nov 5, 2020 |
| 8-K | Report | Data | 8-K | Sep 14, 2020 | Sep 14, 2020 |
| 8-K | Report | Data | 8-K | Aug 17, 2020 | Aug 11, 2020 |
| 10-Q | Report | Data | 10-Q | Aug 6, 2020 | Jun 30, 2020 |
| 8-K | Report | Data | 8-K | Aug 6, 2020 | Aug 6, 2020 |
| 8-K | Report | Data | 8-K | Jun 8, 2020 | Jun 2, 2020 |
| 8-K | Report | Data | 8-K | May 26, 2020 | May 19, 2020 |
| 10-Q | Report | Data | 10-Q | May 7, 2020 | Mar 31, 2020 |
| 8-K | Report | Data | 8-K | May 7, 2020 | May 7, 2020 |
| 10-K | Report | Data | 10-K | Mar 2, 2020 | Dec 31, 2019 |
| 8-K | Report | Data | 8-K | Feb 27, 2020 | Feb 27, 2020 |
| SC 13G/A | Report | NONE | Feb 18, 2020 | |
| SC 13G | Report | ALTAIR ENGINEERING, INC. | Feb 14, 2020 | |
| SC 13G/A | Report | NONE | Feb 13, 2020 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 12, 2020 | |
| SC 13G/A | Report | SC 13G/A | Feb 6, 2020 | |
| SC 13G/A | Report | SC 13G/A | Feb 6, 2020 | |
| SC 13G/A | Report | Feb 5, 2020 | ||
| SC 13G | Report | CONESTOGA CAPITAL ADVISORS | Jan 17, 2020 | |
| 10-Q | Report | Data | 10-Q | Nov 7, 2019 | Sep 30, 2019 |
| 8-K | Report | Data | 8-K | Nov 7, 2019 | Nov 7, 2019 |
| 8-K | Report | Data | FORM 8-K | Oct 10, 2019 | Oct 7, 2019 |
| SC 13G/A | Report | Oct 9, 2019 | ||
| 10-Q | Report | Data | 10-Q | Aug 8, 2019 | Jun 30, 2019 |
| 8-K | Report | 8K-20190805 | Aug 8, 2019 | Aug 8, 2019 |
| 8-K | Report | FORM 8-K | Jun 14, 2019 | Jun 14, 2019 |
| 8-K | Report | FORM 8-K | Jun 10, 2019 | Jun 10, 2019 |
| 8-K | Report | FORM 8-K | Jun 6, 2019 | Jun 5, 2019 |
| 8-K | Report | FORM 8-K | Jun 4, 2019 | Jun 4, 2019 |
| 8-K | Report | FORM 8-K | May 16, 2019 | May 10, 2019 |
| 10-Q | Report | Data | 10-Q | May 9, 2019 | Mar 31, 2019 |
| 8-K | Report | FORM 8-K | May 9, 2019 | May 9, 2019 |
| 8-K | Report | FORM 8-K | Mar 12, 2019 | Mar 11, 2019 |
| 10-K | Report | Data | 10-K | Mar 1, 2019 | Dec 31, 2018 |
| 8-K | Report | 8-K | Feb 28, 2019 | Feb 28, 2019 |
| 8-K/A | Report | FORM 8-K/A | Feb 22, 2019 | Dec 13, 2018 |
| SC 13G/A | Report | SC 13G/A | Feb 20, 2019 | |
| SC 13G/A | Report | SC 13G/A | Feb 14, 2019 | |
| SC 13G/A | Report | SC 13G/A | Feb 14, 2019 | |
| SC 13G/A | Report | SC 13G/A | Feb 14, 2019 | |
| SC 13G/A | Report | SC 13G/A | Feb 14, 2019 | |
| SC 13G/A | Report | SC 13G/A | Feb 14, 2019 | |
| SC 13G/A | Report | SC 13G/A | Feb 14, 2019 | |
| SC 13G/A | Report | NONE | Feb 14, 2019 | |
| SC 13G/A | Report | NONE | Feb 13, 2019 | |
| SC 13G | Report | Feb 11, 2019 | ||
| SC 13G | Report | Feb 8, 2019 | ||
| 8-K | Report | 8-K | Dec 13, 2018 | Dec 13, 2018 |
| SC 13D | Report | SC 13D | Nov 14, 2018 | |
| 8-K | Report | 8-K | Nov 13, 2018 | Nov 6, 2018 |
| 10-Q | Report | Data | 10-Q | Nov 8, 2018 | Sep 30, 2018 |
| 8-K | Report | 8-K | Nov 8, 2018 | Nov 8, 2018 |
| 8-K | Report | 8-K | Nov 5, 2018 | Oct 31, 2018 |
| 10-Q | Report | Data | 10-Q | Aug 9, 2018 | Jun 30, 2018 |
| 8-K | Report | FORM 8-K | Aug 9, 2018 | Aug 9, 2018 |
| 8-K | Report | FORM 8-K | Jun 19, 2018 | Jun 14, 2018 |
| 10-Q | Report | Data | 10-Q | May 14, 2018 | Mar 31, 2018 |
| 8-K | Report | 8-K | May 14, 2018 | May 14, 2018 |
| 8-K | Report | 8-K | Apr 3, 2018 | Apr 1, 2018 |
| 10-K | Report | Data | FORM 10-K | Mar 21, 2018 | Dec 31, 2017 |
| 8-K | Report | 8-K | Mar 21, 2018 | Mar 21, 2018 |
| SC 13G | Report | NONE | Feb 15, 2018 | |
| SC 13G | Report | NONE | Feb 14, 2018 | |
| SC 13G | Report | SC 13G | Feb 14, 2018 | |
| SC 13G | Report | SC 13G | Feb 14, 2018 | |
| SC 13G | Report | SC 13 | Feb 14, 2018 | |
| SC 13G | Report | SC 13G | Feb 14, 2018 | |
| SC 13G | Report | SC 13G | Feb 14, 2018 | |
| SC 13G | Report | SC 13 | Feb 14, 2018 | |
| 8-K | Report | FORM 8-K | Dec 18, 2017 | Dec 18, 2017 |
| 10-Q | Report | Data | 10-Q | Dec 1, 2017 | Sep 30, 2017 |
| 8-K | Report | 8-K | Nov 30, 2017 | Nov 30, 2017 |