ALTAIR ENGINEERING INC. Form 10-K: Annual report
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2025-02-20: Form 10-K; Period of report 2024-12-31; Description 10-K; Document altr-20241231.htm.
- 2024-02-22: Form 10-K; Period of report 2023-12-31; Description 10-K; Document altr-20231231.htm.
- 2023-02-24: Form 10-K; Period of report 2022-12-31; Description 10-K; Document altr-20221231.htm.
- 2022-02-28: Form 10-K; Period of report 2021-12-31; Description 10-K; Document altr-10k_20211231.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2025-02-20 | 10-K | 2024-12-31 | 10-K | altr-20241231.htm |
| 2024-02-22 | 10-K | 2023-12-31 | 10-K | altr-20231231.htm |
| 2023-02-24 | 10-K | 2022-12-31 | 10-K | altr-20221231.htm |
| 2022-02-28 | 10-K | 2021-12-31 | 10-K | altr-10k_20211231.htm |
| 2021-02-26 | 10-K | 2020-12-31 | 10-K | altr-10k_20201231.htm |
| 2020-03-02 | 10-K | 2019-12-31 | 10-K | altr-10k_20191231.htm |
| 2019-03-01 | 10-K | 2018-12-31 | 10-K | altr-10k_20181231.htm |
| 2018-03-21 | 10-K | 2017-12-31 | FORM 10-K | d503331d10k.htm |