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 726-750 of 1,000 matching filings.

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25

Current page

30

4

PRIMARY DOCUMENT

Filing date: 09 Jun 2021
Reporting date: 08 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 09 Jun 2021
Reporting date: 08 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jun 2021
Reporting date: 04 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jun 2021
Reporting date: 04 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jun 2021
Reporting date: 04 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jun 2021
Reporting date: 04 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jun 2021
Reporting date: 04 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 04 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3

FORM 3 SUBMISSION

Filing date: 04 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 04 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 04 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 04 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 04 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-38263

8-K

Filing date: 02 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

DEFA14A File 001-38263

DEFA14A

Filing date: 20 May 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 20 May 2021
Reporting date: 19 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 20 May 2021
Reporting date: 19 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 20 May 2021
Reporting date: 19 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 May 2021
Reporting date: 17 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 May 2021
Reporting date: 17 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 19 May 2021
Reporting date: 17 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

DEFA14A File 001-38263

DEFA14A

Filing date: 13 May 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

DEFA14A File 001-38263

DEFA14A

Filing date: 13 May 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2021
Reporting date: 12 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 May 2021
Reporting date: 07 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

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