Altair Engineering Inc. reports

Company location: Troy, MI
Fiscal year end: 31 December

Altair Engineering Inc. has filed 1,329 SEC EDGAR filings since 16 Jun 2017

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SEC filing history

Showing 501-525 of 1,000 matching filings.

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21

SC 13G/A File 005-90370

SC 13G/A

Filing date: 06 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-90370

SC 13G/A

Filing date: 06 Feb 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-90370

SC 13G/A filing

Filing date: 31 Jan 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 Jan 2023
Reporting date: 17 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 Jan 2023
Reporting date: 17 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 Jan 2023
Reporting date: 17 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Jan 2023
Reporting date: 14 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Jan 2023
Reporting date: 09 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Jan 2023
Reporting date: 09 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Jan 2023
Reporting date: 09 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-38263

8-K

Filing date: 04 Jan 2023
Reporting date: 30 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Dec 2022
Reporting date: 15 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Dec 2022
Reporting date: 15 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Dec 2022
Reporting date: 15 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Dec 2022
Reporting date: 15 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Dec 2022
Reporting date: 15 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 16 Dec 2022
Reporting date: 15 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

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