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 201-225 of 1,000 matching filings.

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25

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9

4

FORM 4 SUBMISSION

Filing date: 07 Sep 2023
Reporting date: 05 Sep 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 07 Sep 2023
Reporting date: 05 Sep 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 07 Sep 2023
Reporting date: 05 Sep 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 07 Sep 2023
Reporting date: 09 Aug 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K/A File 001-41446

FORM 8-K/A

Filing date: 14 Aug 2023
Reporting date: 06 Aug 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-41446

10-Q

Filing date: 14 Aug 2023
Reporting date: 30 Jun 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q/A File 001-41446

10-Q/A

Filing date: 14 Aug 2023
Reporting date: 31 Mar 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-K/A File 001-41446

10-K/A

Filing date: 14 Aug 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q/A File 001-41446

10-Q/A

Filing date: 14 Aug 2023
Reporting date: 30 Sep 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

NT 10-Q File 001-41446

NT 10-Q

Filing date: 10 Aug 2023
Reporting date: 30 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-41446

8-K

Filing date: 10 Aug 2023
Reporting date: 10 Aug 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K/A File 001-41446

8-K/A

Filing date: 10 Aug 2023
Reporting date: 06 Aug 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-41446

FORM 8-K

Filing date: 07 Aug 2023
Reporting date: 06 Aug 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-41446

8-K

Filing date: 28 Jun 2023
Reporting date: 28 Jun 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

11-K File 001-41446

11-K

Filing date: 28 Jun 2023
Reporting date: 31 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 SUBMISSION

Filing date: 08 Jun 2023
Reporting date: 06 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

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