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 751-775 of 1,000 matching filings.

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25

Current page

31

4

PRIMARY DOCUMENT

Filing date: 10 May 2021
Reporting date: 07 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

10-Q File 001-38263

10-Q

Filing date: 06 May 2021
Reporting date: 31 Mar 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-38263

8-K

Filing date: 06 May 2021
Reporting date: 06 May 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 05 May 2021
Reporting date: 05 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 30 Apr 2021
Reporting date: 28 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 21 Apr 2021
Reporting date: 21 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 16 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 16 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 16 Apr 2021
Reporting date: 15 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 15 Apr 2021
Reporting date: 14 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 15 Apr 2021
Reporting date: 14 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 14 Apr 2021
Reporting date: 14 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 14 Apr 2021
Reporting date: 12 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 14 Apr 2021
Reporting date: 12 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-255160

S-8

Filing date: 09 Apr 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-255157

S-8

Filing date: 09 Apr 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

DEFA14A File 001-38263

DEFA14A

Filing date: 09 Apr 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 001-38263

DEF 14A

Filing date: 09 Apr 2021
Reporting date: 20 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 07 Apr 2021
Reporting date: 05 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4/A

FORM 4/A SUBMISSION

Filing date: 07 Apr 2021
Reporting date: 11 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 18 Mar 2021
Reporting date: 17 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 18 Mar 2021
Reporting date: 17 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 18 Mar 2021
Reporting date: 17 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 18 Mar 2021
Reporting date: 17 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

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