ALTAIR ENGINEERING INC. Form DEF 14A: Definitive proxy statement
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2024-04-05: Form DEF 14A; Period of report 2024-05-16; Description DEF 14A; Document d722499ddef14a.htm.
- 2023-04-25: Form DEF 14A; Description DEF 14A; Document d421123ddef14a.htm.
- 2022-03-30: Form DEF 14A; Period of report 2022-05-11; Description DEF 14A; Document d287410ddef14a.htm.
- 2021-04-09: Form DEF 14A; Period of report 2021-05-20; Description DEF 14A; Document d76403ddef14a.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2024-04-05 | DEF 14A | 2024-05-16 | DEF 14A | d722499ddef14a.htm |
| 2023-04-25 | DEF 14A | DEF 14A | d421123ddef14a.htm | |
| 2022-03-30 | DEF 14A | 2022-05-11 | DEF 14A | d287410ddef14a.htm |
| 2021-04-09 | DEF 14A | 2021-05-20 | DEF 14A | d76403ddef14a.htm |
| 2020-04-09 | DEF 14A | 2020-05-19 | DEF 14A | d873378ddef14a.htm |
| 2019-04-04 | DEF 14A | 2019-05-14 | DEF 14A | d692186ddef14a.htm |
| 2018-04-26 | DEF 14A | 2018-06-14 | DEF 14A | d553373ddef14a.htm |