ADTRAN Holdings, Inc. reports

Company location: Huntsville, AL
Fiscal year end: 31 December

ADTRAN Holdings, Inc. has filed 2,099 SEC EDGAR filings since 07 Feb 1996

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SEC filing history

Showing 401-425 of 1,000 matching filings.

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25

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17

425 File 000-24612

425

Filing date: 06 Jul 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

425 File 000-24612

425

Filing date: 06 Jul 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

425 File 000-24612

425

Filing date: 06 Jul 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 01 Jul 2022
Reporting date: 04 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24612

8-K

Filing date: 30 Jun 2022
Reporting date: 30 Jun 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

11-K File 000-24612

11-K

Filing date: 28 Jun 2022
Reporting date: 31 Dec 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 06 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 03 Jun 2022
Reporting date: 02 Jun 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

SD File 000-24612

SD

Filing date: 27 May 2022
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24612

8-K

Filing date: 23 May 2022
Reporting date: 19 May 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 13 May 2022
Reporting date: 11 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24612

8-K

Filing date: 13 May 2022
Reporting date: 11 May 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 12 May 2022
Reporting date: 11 May 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 000-24612

10-Q

Filing date: 06 May 2022
Reporting date: 31 Mar 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-24612

8-K

Filing date: 05 May 2022
Reporting date: 04 May 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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