William M. Walker

Entity
Individual
Business address
7272 Wisconsin Avenue, Suite 1300, 20814 Bethesda, MD
Signature Ownership
/s/ Nicholas C. Eckstein Attorney-in-fact
All SEC filings
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William M. Walker has filed 119 SEC EDGAR filings since 12/13/2010

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 9, 2025 Sep 5, 2025 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 2, 2025 May 29, 2025 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Apr 3, 2025 Apr 2, 2025 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 18, 2025 Mar 14, 2025 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 6, 2025 Mar 6, 2025 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 19, 2025 Feb 14, 2025 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 4, 2025 Jan 31, 2025 001-35000
4/A Open Document Open Filing OWNERSHIP DOCUMENT Feb 3, 2025 Dec 18, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 20, 2024 Dec 18, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 10, 2024 Dec 6, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 10, 2024 Sep 6, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 4, 2024 May 31, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 22, 2024 Mar 20, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 19, 2024 Mar 15, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 20, 2024 Feb 15, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 2, 2024 Jan 31, 2024 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 15, 2023 Dec 14, 2023 001-35000
144 Open Document Open Filing Dec 14, 2023
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 12, 2023 Dec 8, 2023 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 6, 2023 Sep 1, 2023 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 6, 2023 Jun 2, 2023 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 27, 2023 Mar 23, 2023 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 17, 2023 Feb 15, 2023 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 13, 2022 Dec 9, 2022 001-35000
SC 13D/A Open Document Open Filing SC 13D/A Sep 16, 2022
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 7, 2022 Sep 2, 2022 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 7, 2022 Jun 3, 2022 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 14, 2022 Mar 10, 2022 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 17, 2022 Feb 15, 2022 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 22, 2021 Dec 16, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 1, 2021 Nov 29, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 8, 2021 Sep 3, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 18, 2021 Aug 17, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 8, 2021 Jun 4, 2021 001-35000
SC 13D/A Open Document Open Filing SC 13D/A Apr 2, 2021
4 Open Document Open Filing OWNERSHIP DOCUMENT Apr 2, 2021 Mar 31, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 15, 2021 Mar 11, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 22, 2021 Feb 18, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 17, 2021 Feb 12, 2021 001-35000
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 28, 2020 Dec 16, 2020 001-35000
4 Open Document Open Filing 4 Dec 2, 2020 Nov 30, 2020 001-35000
4 Open Document Open Filing 4 Sep 10, 2020 Sep 8, 2020 001-35000
4 Open Document Open Filing 4 Aug 27, 2020 Aug 26, 2020 001-35000
4 Open Document Open Filing 4 Jun 9, 2020 Jun 5, 2020 001-35000
4 Open Document Open Filing 4 Mar 11, 2020 Mar 9, 2020 001-35000
4 Open Document Open Filing 4 Mar 6, 2020 Mar 4, 2020 001-35000
4 Open Document Open Filing 4 Feb 19, 2020 Feb 14, 2020 001-35000
4 Open Document Open Filing 4 Dec 11, 2019 Dec 9, 2019 001-35000
4 Open Document Open Filing 4 Sep 25, 2019 Sep 13, 2019 001-35000
4 Open Document Open Filing 4 Sep 11, 2019 Sep 9, 2019 001-35000
4 Open Document Open Filing 4 Aug 15, 2019 Aug 13, 2019 001-35000
4 Open Document Open Filing 4 Jun 6, 2019 Jun 4, 2019 001-35000
4 Open Document Open Filing 4 Mar 19, 2019 Mar 15, 2019 001-35000
4 Open Document Open Filing 4 Mar 11, 2019 Mar 7, 2019 001-35000
4 Open Document Open Filing 4 Feb 20, 2019 Feb 15, 2019 001-35000
4 Open Document Open Filing 4 Feb 4, 2019 Jan 31, 2019 001-35000
4 Open Document Open Filing 4 Dec 17, 2018 Dec 7, 2018 001-35000
4 Open Document Open Filing 4 Dec 6, 2018 Dec 4, 2018 001-35000
4 Open Document Open Filing 4 Sep 6, 2018 Sep 4, 2018 001-35000
4 Open Document Open Filing 4 Jun 7, 2018 Jun 5, 2018 001-35000
4 Open Document Open Filing 4 Apr 11, 2018 Apr 9, 2018 001-35000
4 Open Document Open Filing 4 Mar 19, 2018 Mar 15, 2018 001-35000
4 Open Document Open Filing 4 Mar 14, 2018 Mar 12, 2018 001-35000
4 Open Document Open Filing 4 Mar 9, 2018 Mar 7, 2018 001-35000
4 Open Document Open Filing 4 Feb 21, 2018 Feb 16, 2018 001-35000
4 Open Document Open Filing 4 Feb 16, 2018 Feb 14, 2018 001-35000
4 Open Document Open Filing 4 Jan 10, 2018 Jan 8, 2018 001-35000
4 Open Document Open Filing 4 Dec 20, 2017 Dec 18, 2017 001-35000
SC 13D/A Open Document Open Filing SC 13D/A Nov 22, 2017
4 Open Document Open Filing 4 Feb 17, 2017 Feb 15, 2017 001-35000
5 Open Document Open Filing 5 Jan 6, 2017 Dec 31, 2016 001-35000
4 Open Document Open Filing 4 Dec 7, 2016 Dec 5, 2016 001-35000
4 Open Document Open Filing 4 Nov 7, 2016 Nov 3, 2016 001-35000
4 Open Document Open Filing 4 Oct 7, 2016 Oct 5, 2016 001-35000
4 Open Document Open Filing 4 Sep 8, 2016 Sep 6, 2016 001-35000
4 Open Document Open Filing 4 Aug 5, 2016 Aug 3, 2016 001-35000
4 Open Document Open Filing 4 Apr 5, 2016 Apr 1, 2016 001-35000
4 Open Document Open Filing 4 Feb 23, 2016 Feb 19, 2016 001-35000
4 Open Document Open Filing 4 Feb 17, 2016 Feb 15, 2016 001-35000
5 Open Document Open Filing 5 Feb 5, 2016 Dec 31, 2015 001-35000
SC 13D/A Open Document Open Filing SC 13D/A Dec 28, 2015
4 Open Document Open Filing 4 Dec 18, 2015 Dec 17, 2015 001-35000
4 Open Document Open Filing FORM 4 SUBMISSION May 22, 2015 May 20, 2015 001-35000
4 Open Document Open Filing FORM 4 SUBMISSION May 1, 2015 Apr 30, 2015 001-35000
SC 13D/A Open Document Open Filing SC 13D/A Apr 14, 2015
4 Open Document Open Filing FORM 4 SUBMISSION Apr 2, 2015 Apr 1, 2015 001-35000
4 Open Document Open Filing PRIMARY DOCUMENT Feb 18, 2015 Feb 15, 2015 001-35000
5 Open Document Open Filing PRIMARY DOCUMENT Jan 6, 2015 Dec 31, 2014 001-35000
4 Open Document Open Filing FORM 4 SUBMISSION May 1, 2014 Apr 30, 2014 001-35000
4 Open Document Open Filing FORM 4 SUBMISSION Apr 2, 2014 Apr 1, 2014 001-35000
4 Open Document Open Filing FORM 4 SUBMISSION Mar 25, 2014 Mar 24, 2014 001-35000
4 Open Document Open Filing FORM 4 SUBMISSION Mar 18, 2014 Mar 15, 2014 001-35000
4 Open Document Open Filing FORM 4 SUBMISSION Feb 19, 2014 Feb 15, 2014 001-35000