SEC Filings

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ADTRAN Holdings, Inc.

8-K 214 filings

All 8-K Filings

Complete history of 8-K filings with the SEC

Date Filed	View on EDGAR
18 May May 18, 2026	open_in_new View Filing
05 May May 05, 2026	open_in_new View Filing
07 Apr Apr 07, 2026	open_in_new View Filing
26 Feb Feb 26, 2026	open_in_new View Filing
22 Jan Jan 22, 2026	open_in_new View Filing
11 Dec Dec 11, 2025	open_in_new View Filing
04 Nov Nov 04, 2025	open_in_new View Filing
22 Sep Sep 22, 2025	open_in_new View Filing
17 Sep Sep 17, 2025	open_in_new View Filing
05 Aug Aug 05, 2025	open_in_new View Filing
30 Jul Jul 30, 2025	open_in_new View Filing
16 Jul Jul 16, 2025	open_in_new View Filing
28 May May 28, 2025	open_in_new View Filing
27 May May 27, 2025	open_in_new View Filing
13 May May 13, 2025	open_in_new View Filing
12 May May 12, 2025	open_in_new View Filing
08 May May 08, 2025	open_in_new View Filing
16 Apr Apr 16, 2025	open_in_new View Filing
07 Mar Mar 07, 2025	open_in_new View Filing
27 Feb Feb 27, 2025	open_in_new View Filing
07 Nov Nov 07, 2024	open_in_new View Filing
30 Aug Aug 30, 2024	open_in_new View Filing
06 Aug Aug 06, 2024	open_in_new View Filing
02 Aug Aug 02, 2024	open_in_new View Filing
10 Jun Jun 10, 2024	open_in_new View Filing
09 May May 09, 2024	open_in_new View Filing
07 May May 07, 2024	open_in_new View Filing
03 May May 03, 2024	open_in_new View Filing
17 Apr Apr 17, 2024	open_in_new View Filing
15 Mar Mar 15, 2024	open_in_new View Filing
27 Feb Feb 27, 2024	open_in_new View Filing
20 Feb Feb 20, 2024	open_in_new View Filing
22 Jan Jan 22, 2024	open_in_new View Filing
06 Dec Dec 06, 2023	open_in_new View Filing
05 Dec Dec 05, 2023	open_in_new View Filing
07 Nov Nov 07, 2023	open_in_new View Filing
24 Oct Oct 24, 2023	open_in_new View Filing
17 Oct Oct 17, 2023	open_in_new View Filing
29 Sep Sep 29, 2023	open_in_new View Filing
10 Aug Aug 10, 2023	open_in_new View Filing
07 Aug Aug 07, 2023	open_in_new View Filing
28 Jun Jun 28, 2023	open_in_new View Filing
01 Jun Jun 01, 2023	open_in_new View Filing
30 May May 30, 2023	open_in_new View Filing
15 May May 15, 2023	open_in_new View Filing
09 May May 09, 2023	open_in_new View Filing
11 Apr Apr 11, 2023	open_in_new View Filing
03 Apr Apr 03, 2023	open_in_new View Filing
30 Mar Mar 30, 2023	open_in_new View Filing
21 Feb Feb 21, 2023	open_in_new View Filing
08 Feb Feb 08, 2023	open_in_new View Filing
26 Jan Jan 26, 2023	open_in_new View Filing
19 Jan Jan 19, 2023	open_in_new View Filing
05 Dec Dec 05, 2022	open_in_new View Filing
08 Nov Nov 08, 2022	open_in_new View Filing
26 Oct Oct 26, 2022	open_in_new View Filing
25 Oct Oct 25, 2022	open_in_new View Filing
18 Oct Oct 18, 2022	open_in_new View Filing
04 Aug Aug 04, 2022	open_in_new View Filing
22 Jul Jul 22, 2022	open_in_new View Filing
15 Jul Jul 15, 2022	open_in_new View Filing
08 Jul Jul 08, 2022	open_in_new View Filing
07 Jul Jul 07, 2022	open_in_new View Filing
30 Jun Jun 30, 2022	open_in_new View Filing
23 May May 23, 2022	open_in_new View Filing
13 May May 13, 2022	open_in_new View Filing
05 May May 05, 2022	open_in_new View Filing
06 Apr Apr 06, 2022	open_in_new View Filing
03 Feb Feb 03, 2022	open_in_new View Filing
06 Jan Jan 06, 2022	open_in_new View Filing
28 Dec Dec 28, 2021	open_in_new View Filing
29 Nov Nov 29, 2021	open_in_new View Filing
02 Nov Nov 02, 2021	open_in_new View Filing
02 Nov Nov 02, 2021	open_in_new View Filing
15 Oct Oct 15, 2021	open_in_new View Filing
07 Oct Oct 07, 2021	open_in_new View Filing
01 Sep Sep 01, 2021	open_in_new View Filing
30 Aug Aug 30, 2021	open_in_new View Filing
05 Aug Aug 05, 2021	open_in_new View Filing
18 May May 18, 2021	open_in_new View Filing
06 May May 06, 2021	open_in_new View Filing
04 Feb Feb 04, 2021	open_in_new View Filing
03 Nov Nov 03, 2020	open_in_new View Filing
06 Aug Aug 06, 2020	open_in_new View Filing
23 Jul Jul 23, 2020	open_in_new View Filing
15 May May 15, 2020	open_in_new View Filing
11 May May 11, 2020	open_in_new View Filing
07 May May 07, 2020	open_in_new View Filing
25 Feb Feb 25, 2020	open_in_new View Filing
06 Feb Feb 06, 2020	open_in_new View Filing
31 Oct Oct 31, 2019	open_in_new View Filing
10 Oct Oct 10, 2019	open_in_new View Filing
20 Sep Sep 20, 2019	open_in_new View Filing
21 Aug Aug 21, 2019	open_in_new View Filing
18 Jul Jul 18, 2019	open_in_new View Filing
09 May May 09, 2019	open_in_new View Filing
18 Apr Apr 18, 2019	open_in_new View Filing
07 Mar Mar 07, 2019	open_in_new View Filing
24 Jan Jan 24, 2019	open_in_new View Filing
06 Dec Dec 06, 2018	open_in_new View Filing
17 Oct Oct 17, 2018	open_in_new View Filing
18 Jul Jul 18, 2018	open_in_new View Filing
10 May May 10, 2018	open_in_new View Filing
18 Apr Apr 18, 2018	open_in_new View Filing
21 Mar Mar 21, 2018	open_in_new View Filing
17 Jan Jan 17, 2018	open_in_new View Filing
29 Dec Dec 29, 2017	open_in_new View Filing
16 Nov Nov 16, 2017	open_in_new View Filing
18 Oct Oct 18, 2017	open_in_new View Filing
19 Jul Jul 19, 2017	open_in_new View Filing
11 May May 11, 2017	open_in_new View Filing
11 May May 11, 2017	open_in_new View Filing
19 Apr Apr 19, 2017	open_in_new View Filing
07 Feb Feb 07, 2017	open_in_new View Filing
18 Jan Jan 18, 2017	open_in_new View Filing
16 Nov Nov 16, 2016	open_in_new View Filing
19 Oct Oct 19, 2016	open_in_new View Filing
14 Sep Sep 14, 2016	open_in_new View Filing
17 Aug Aug 17, 2016	open_in_new View Filing
13 Jul Jul 13, 2016	open_in_new View Filing
13 May May 13, 2016	open_in_new View Filing
13 Apr Apr 13, 2016	open_in_new View Filing
08 Apr Apr 08, 2016	open_in_new View Filing
11 Feb Feb 11, 2016	open_in_new View Filing
20 Jan Jan 20, 2016	open_in_new View Filing
16 Nov Nov 16, 2015	open_in_new View Filing
14 Oct Oct 14, 2015	open_in_new View Filing
16 Jul Jul 16, 2015	open_in_new View Filing
15 Jul Jul 15, 2015	open_in_new View Filing
15 May May 15, 2015	open_in_new View Filing
22 Apr Apr 22, 2015	open_in_new View Filing
23 Feb Feb 23, 2015	open_in_new View Filing
21 Jan Jan 21, 2015	open_in_new View Filing
15 Oct Oct 15, 2014	open_in_new View Filing
03 Oct Oct 03, 2014	open_in_new View Filing
16 Jul Jul 16, 2014	open_in_new View Filing
20 May May 20, 2014	open_in_new View Filing
20 May May 20, 2014	open_in_new View Filing
15 May May 15, 2014	open_in_new View Filing
16 Apr Apr 16, 2014	open_in_new View Filing
03 Apr Apr 03, 2014	open_in_new View Filing
22 Jan Jan 22, 2014	open_in_new View Filing
15 Oct Oct 15, 2013	open_in_new View Filing
09 Oct Oct 09, 2013	open_in_new View Filing
10 Jul Jul 10, 2013	open_in_new View Filing
10 May May 10, 2013	open_in_new View Filing
03 May May 03, 2013	open_in_new View Filing
10 Apr Apr 10, 2013	open_in_new View Filing
16 Jan Jan 16, 2013	open_in_new View Filing
10 Oct Oct 10, 2012	open_in_new View Filing
03 Oct Oct 03, 2012	open_in_new View Filing
28 Sep Sep 28, 2012	open_in_new View Filing
11 Jul Jul 11, 2012	open_in_new View Filing
10 May May 10, 2012	open_in_new View Filing
10 May May 10, 2012	open_in_new View Filing
11 Apr Apr 11, 2012	open_in_new View Filing
15 Mar Mar 15, 2012	open_in_new View Filing
18 Jan Jan 18, 2012	open_in_new View Filing
12 Dec Dec 12, 2011	open_in_new View Filing
13 Oct Oct 13, 2011	open_in_new View Filing
12 Oct Oct 12, 2011	open_in_new View Filing
13 Jul Jul 13, 2011	open_in_new View Filing
09 May May 09, 2011	open_in_new View Filing
13 Apr Apr 13, 2011	open_in_new View Filing
19 Jan Jan 19, 2011	open_in_new View Filing
09 Nov Nov 09, 2010	open_in_new View Filing
13 Oct Oct 13, 2010	open_in_new View Filing
14 Jul Jul 14, 2010	open_in_new View Filing
28 May May 28, 2010	open_in_new View Filing
14 Apr Apr 14, 2010	open_in_new View Filing
20 Jan Jan 20, 2010	open_in_new View Filing
28 Oct Oct 28, 2009	open_in_new View Filing
14 Oct Oct 14, 2009	open_in_new View Filing
15 Jul Jul 15, 2009	open_in_new View Filing
15 Apr Apr 15, 2009	open_in_new View Filing
21 Jan Jan 21, 2009	open_in_new View Filing
12 Nov Nov 12, 2008	open_in_new View Filing
14 Oct Oct 14, 2008	open_in_new View Filing
15 Jul Jul 15, 2008	open_in_new View Filing
15 Apr Apr 15, 2008	open_in_new View Filing
22 Jan Jan 22, 2008	open_in_new View Filing
16 Oct Oct 16, 2007	open_in_new View Filing
16 Oct Oct 16, 2007	open_in_new View Filing
17 Jul Jul 17, 2007	open_in_new View Filing
17 Apr Apr 17, 2007	open_in_new View Filing
03 Apr Apr 03, 2007	open_in_new View Filing
28 Mar Mar 28, 2007	open_in_new View Filing
23 Feb Feb 23, 2007	open_in_new View Filing
23 Feb Feb 23, 2007	open_in_new View Filing
30 Jan Jan 30, 2007	open_in_new View Filing
26 Jan Jan 26, 2007	open_in_new View Filing
23 Jan Jan 23, 2007	open_in_new View Filing
17 Oct Oct 17, 2006	open_in_new View Filing
18 Jul Jul 18, 2006	open_in_new View Filing
08 Jun Jun 08, 2006	open_in_new View Filing
10 May May 10, 2006	open_in_new View Filing
18 Apr Apr 18, 2006	open_in_new View Filing
03 Feb Feb 03, 2006	open_in_new View Filing
27 Jan Jan 27, 2006	open_in_new View Filing
24 Jan Jan 24, 2006	open_in_new View Filing
18 Oct Oct 18, 2005	open_in_new View Filing
19 Jul Jul 19, 2005	open_in_new View Filing
19 Jul Jul 19, 2005	open_in_new View Filing
20 May May 20, 2005	open_in_new View Filing
19 Apr Apr 19, 2005	open_in_new View Filing
25 Jan Jan 25, 2005	open_in_new View Filing
12 Oct Oct 12, 2004	open_in_new View Filing
13 Jul Jul 13, 2004	open_in_new View Filing
14 Apr Apr 14, 2004	open_in_new View Filing
21 Jan Jan 21, 2004	open_in_new View Filing
14 Oct Oct 14, 2003	open_in_new View Filing
15 Jul Jul 15, 2003	open_in_new View Filing
15 Apr Apr 15, 2003	open_in_new View Filing
12 Sep Sep 12, 1996	open_in_new View Filing