FILINGS
| ALTR 0001701732 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2023-03-01 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-02-24 | 10-K | 10-K | View Document |
| 2023-02-23 | 8-K | 8-K | View Document |
| 2023-02-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-02-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-02-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-02-13 | SC 13G/A | ALTAIR ENGINEERING, INC. | View Document |
| 2023-02-09 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2023-02-06 | SC 13G/A | SC 13G/A | View Document |
| 2023-02-06 | SC 13G/A | SC 13G/A | View Document |
| 2023-01-31 | SC 13G/A | View Document | |
| 2023-01-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-19 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-10 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-10 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-10 | 4 | PRIMARY DOCUMENT | View Document |
| 2023-01-04 | 8-K | 8-K | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-12-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-11-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-11-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-11-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-11-10 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-11-10 | 8-K | 8-K | View Document |
| 2022-11-10 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-11-04 | 10-Q | 10-Q | View Document |
| 2022-11-03 | 8-K | 8-K | View Document |
| 2022-10-18 | 3 | PRIMARY DOCUMENT | View Document |
| 2022-10-03 | 8-K | 8-K | View Document |
| 2022-09-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-09-16 | 8-K | 8-K | View Document |
| 2022-09-13 | 8-K | FORM 8-K | View Document |
| 2022-08-23 | 8-K | 8-K | View Document |
| 2022-08-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-08-05 | S-3ASR | S-3ASR | View Document |
| 2022-08-04 | 10-Q | 10-Q | View Document |
| 2022-08-04 | 8-K | 8-K | View Document |
| 2022-07-18 | 4 | FORM 4 SUBMISSION | View Document |
| 2022-07-18 | 4 | FORM 4 SUBMISSION | View Document |
| 2022-07-18 | 4/A | FORM 4/A SUBMISSION | View Document |
| 2022-07-18 | 4 | FORM 4 SUBMISSION | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-07-01 | UPLOAD | View Document | |
| 2022-06-30 | CORRESP | View Document | |
| 2022-06-24 | 8-K | 8-K | View Document |
| 2022-06-24 | 8-K | 8-K | View Document |
| 2022-06-23 | UPLOAD | View Document | |
| 2022-06-15 | 8-K | 8-K | View Document |
| 2022-06-10 | 8-K | 8-K | View Document |
| 2022-06-09 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-27 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-18 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-12 | 8-K | 8-K | View Document |
| 2022-05-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-05-05 | 10-Q | 10-Q | View Document |
| 2022-05-05 | 8-K | 8-K | View Document |
| 2022-04-22 | 4/A | PRIMARY DOCUMENT | View Document |
| 2022-04-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-04-22 | 4/A | PRIMARY DOCUMENT | View Document |
| 2022-03-30 | DEFA14A | DEFA14A | View Document |
| 2022-03-30 | DEF 14A | DEF 14A | View Document |
| 2022-03-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-03-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-03-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-03-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2022-03-18 | 4 | PRIMARY DOCUMENT | View Document |
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