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 976-1,000 of 1,000 matching filings.

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40

10-Q File 000-24612

10-Q

Filing date: 07 Nov 2017
Reporting date: 30 Sep 2017
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

UPLOAD

UPLOAD filing

Filing date: 31 Oct 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 31 Oct 2017
Reporting date: 27 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 30 Oct 2017
Reporting date: 26 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 25 Oct 2017
Reporting date: 23 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 25 Oct 2017
Reporting date: 20 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 18 Oct 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-24612

8-K

Filing date: 18 Oct 2017
Reporting date: 17 Oct 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 18 Sep 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

UPLOAD

UPLOAD filing

Filing date: 12 Sep 2017
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 21 Aug 2017
Reporting date: 17 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 17 Aug 2017
Reporting date: 15 Aug 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 000-24612

10-Q

Filing date: 04 Aug 2017
Reporting date: 30 Jun 2017
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 26 Jul 2017
Reporting date: 24 Jul 2017
SEC evidence: Open document Open filing
Next action: Verify source filing

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