ALTAIR ENGINEERING INC. Form 10-Q: Quarterly report

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

2024-10-31: Form 10-Q; Period of report 2024-09-30; Description 10-Q; Document altr-20240930.htm.
2024-08-01: Form 10-Q; Period of report 2024-06-30; Description 10-Q; Document altr-20240630.htm.
2024-05-02: Form 10-Q; Period of report 2024-03-31; Description 10-Q; Document altr-20240331.htm.
2023-11-02: Form 10-Q; Period of report 2023-09-30; Description 10-Q; Document altr-20230930.htm.

Filed	Form	Period of report	Description	Document
2024-10-31	10-Q	2024-09-30	10-Q	altr-20240930.htm
2024-08-01	10-Q	2024-06-30	10-Q	altr-20240630.htm
2024-05-02	10-Q	2024-03-31	10-Q	altr-20240331.htm
2023-11-02	10-Q	2023-09-30	10-Q	altr-20230930.htm
2023-08-03	10-Q	2023-06-30	10-Q	altr-20230630.htm
2023-05-04	10-Q	2023-03-31	10-Q	altr-20230331.htm
2022-11-04	10-Q	2022-09-30	10-Q	altr-20220930.htm
2022-08-04	10-Q	2022-06-30	10-Q	altr-20220630.htm
2022-05-05	10-Q	2022-03-31	10-Q	altr-10q_20220331.htm
2021-11-04	10-Q	2021-09-30	10-Q	altr-10q_20210930.htm
2021-08-05	10-Q	2021-06-30	10-Q	altr-10q_20210630.htm
2021-05-06	10-Q	2021-03-31	10-Q	altr-10q_20210331.htm
2020-11-05	10-Q	2020-09-30	10-Q	altr-10q_20200930.htm
2020-08-06	10-Q	2020-06-30	10-Q	altr-10q_20200630.htm
2020-05-07	10-Q	2020-03-31	10-Q	altr-10q_20200331.htm
2019-11-07	10-Q	2019-09-30	10-Q	altr-10q_20190930.htm
2019-08-08	10-Q	2019-06-30	10-Q	altr-10q_20190630.htm
2019-05-09	10-Q	2019-03-31	10-Q	altr-10q_20190331.htm
2018-11-08	10-Q	2018-09-30	10-Q	altr-10q_20180930.htm
2018-08-09	10-Q	2018-06-30	10-Q	altr-10q_20180630.htm
2018-05-14	10-Q	2018-03-31	10-Q	altr-10q_20180331.htm
2017-12-01	10-Q	2017-09-30	10-Q	d224585d10q.htm