Kathryn A. Walker

Business address
2001 Edmund Halley Drive, Restont, VA, 20191
Top holdings (ownership)
ADTN
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Kathryn A. Walker has filed 80 SEC EDGAR filings since 22 Sep 2003

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 4 05 Jan 2026 31 Dec 2025 001-41446
4 Open Document Open Filing 4 03 Jan 2025 31 Dec 2024 001-41446
4 Open Document Open Filing 4 03 Jan 2024 31 Dec 2023 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 07 Sep 2023 05 Sep 2023 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 08 Jun 2023 06 Jun 2023 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 23 Mar 2023 21 Mar 2023 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 25 Jan 2023 24 Jan 2023 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jan 2023 31 Dec 2022 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 08 Dec 2022 06 Dec 2022 001-41446
4 Open Document Open Filing PRIMARY DOCUMENT 06 Sep 2022 01 Sep 2022 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 11 Jul 2022 08 Jul 2022 001-41446
3 Open Document Open Filing FORM 3 SUBMISSION 11 Jul 2022 08 Jul 2022 001-41446
4 Open Document Open Filing FORM 4 SUBMISSION 08 Jul 2022 08 Jul 2022 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jun 2022 02 Jun 2022 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 07 Mar 2022 03 Mar 2022 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jan 2022 31 Dec 2021 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2021 30 Nov 2021 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 07 Sep 2021 02 Sep 2021 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2021 03 Jun 2021 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 08 Mar 2021 04 Mar 2021 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jan 2021 31 Dec 2020 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 03 Dec 2020 01 Dec 2020 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 08 Sep 2020 03 Sep 2020 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jun 2020 04 Jun 2020 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 09 Mar 2020 05 Mar 2020 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2020 31 Dec 2019 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 04 Dec 2019 02 Dec 2019 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 16 Aug 2019 15 Aug 2019 000-24612
4/A Open Document Open Filing PRIMARY DOCUMENT 24 May 2019 31 Dec 2018 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 20 May 2019 16 May 2019 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 25 Feb 2019 21 Feb 2019 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2019 31 Dec 2018 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 16 Nov 2018 14 Nov 2018 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 17 Aug 2018 15 Aug 2018 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 17 May 2018 16 May 2018 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 15 Feb 2018 14 Feb 2018 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2018 31 Dec 2017 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 22 Nov 2017 15 Nov 2017 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 21 Aug 2017 17 Aug 2017 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 22 May 2017 18 May 2017 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 28 Feb 2017 16 Feb 2017 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jan 2017 17 Nov 2016 000-24612
4 Open Document Open Filing PRIMARY DOCUMENT 15 Aug 2016 11 Aug 2016 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 16 May 2016 12 May 2016 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 22 Feb 2016 18 Feb 2016 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jan 2016 31 Dec 2015 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 18 Nov 2015 14 Aug 2014 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 23 Feb 2015 19 Feb 2015 000-24612
4/A Open Document Open Filing FORM 4/A SUBMISSION 17 Feb 2015 14 May 2014 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jan 2015 14 Aug 2014 000-24612
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jun 2014 14 May 2014 000-24612
3 Open Document Open Filing FORM 3 SUBMISSION 04 Jun 2014 14 May 2014 000-24612