Entity Type
Individual
- Info
- Insider Ownership
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William M. Walker SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0001503841.
Total Filings
124
Latest Filing
31 Mar 2026
Industry
n/a
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- Business address
- 7272 Wisconsin Avenue, Suite 1300, Bethesda, MD, 20814
- Top holdings (ownership)
- WD
Quick Takeaways
- William M. Walker is an SEC filer tracked under CIK 0001503841.
- 124 filings are listed on this profile.
- Common form coverage includes 4, 4/A, 144 and more.
What Changed
- Latest filing: 4 filed on 31 Mar 2026.
- Report period: 27 Mar 2026.
Why This Matters
- You can quote filing dates and form types directly from the SEC record on this page.
- Use this profile before deeper ownership or insider analysis to confirm filing history context.
Official SEC Source
Filer Overview
William M. Walker has filed 124 SEC EDGAR filings since 13 Dec 2010. Common forms include 4, 4/A, 144, SC 13D/A and more.
Latest Filings
Recent SEC filings for William M. Walker with direct links to document and filing folders.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 31 Mar 2026 | 27 Mar 2026 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Mar 2026 | 02 Mar 2026 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 18 Feb 2026 | 13 Feb 2026 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Feb 2026 | 30 Jan 2026 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 09 Dec 2025 | 05 Dec 2025 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 09 Sep 2025 | 05 Sep 2025 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 02 Jun 2025 | 29 May 2025 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Apr 2025 | 02 Apr 2025 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 18 Mar 2025 | 14 Mar 2025 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Mar 2025 | 06 Mar 2025 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Feb 2025 | 14 Feb 2025 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 04 Feb 2025 | 31 Jan 2025 | 001-35000 |
| 4/A | Open 4/A document | View SEC filing for 4/A | OWNERSHIP DOCUMENT | 03 Feb 2025 | 18 Dec 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 20 Dec 2024 | 18 Dec 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 10 Dec 2024 | 06 Dec 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 10 Sep 2024 | 06 Sep 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 04 Jun 2024 | 31 May 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 22 Mar 2024 | 20 Mar 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Mar 2024 | 15 Mar 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 20 Feb 2024 | 15 Feb 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 02 Feb 2024 | 31 Jan 2024 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 15 Dec 2023 | 14 Dec 2023 | 001-35000 |
| 144 | Open 144 document | View SEC filing for 144 | 14 Dec 2023 | |||
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 12 Dec 2023 | 08 Dec 2023 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Sep 2023 | 01 Sep 2023 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Jun 2023 | 02 Jun 2023 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 27 Mar 2023 | 23 Mar 2023 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 17 Feb 2023 | 15 Feb 2023 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 13 Dec 2022 | 09 Dec 2022 | 001-35000 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 16 Sep 2022 | ||
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Sep 2022 | 02 Sep 2022 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Jun 2022 | 03 Jun 2022 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 14 Mar 2022 | 10 Mar 2022 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 17 Feb 2022 | 15 Feb 2022 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 22 Dec 2021 | 16 Dec 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 01 Dec 2021 | 29 Nov 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 08 Sep 2021 | 03 Sep 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 18 Aug 2021 | 17 Aug 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 08 Jun 2021 | 04 Jun 2021 | 001-35000 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 02 Apr 2021 | ||
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 02 Apr 2021 | 31 Mar 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 15 Mar 2021 | 11 Mar 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 22 Feb 2021 | 18 Feb 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 17 Feb 2021 | 12 Feb 2021 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 28 Dec 2020 | 16 Dec 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 02 Dec 2020 | 30 Nov 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 10 Sep 2020 | 08 Sep 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 27 Aug 2020 | 26 Aug 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 09 Jun 2020 | 05 Jun 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 11 Mar 2020 | 09 Mar 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 06 Mar 2020 | 04 Mar 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 19 Feb 2020 | 14 Feb 2020 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 11 Dec 2019 | 09 Dec 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 25 Sep 2019 | 13 Sep 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 11 Sep 2019 | 09 Sep 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 15 Aug 2019 | 13 Aug 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 06 Jun 2019 | 04 Jun 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 19 Mar 2019 | 15 Mar 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 11 Mar 2019 | 07 Mar 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 20 Feb 2019 | 15 Feb 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 04 Feb 2019 | 31 Jan 2019 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 17 Dec 2018 | 07 Dec 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 06 Dec 2018 | 04 Dec 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 06 Sep 2018 | 04 Sep 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 07 Jun 2018 | 05 Jun 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 11 Apr 2018 | 09 Apr 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 19 Mar 2018 | 15 Mar 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 14 Mar 2018 | 12 Mar 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 09 Mar 2018 | 07 Mar 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 21 Feb 2018 | 16 Feb 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 16 Feb 2018 | 14 Feb 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 10 Jan 2018 | 08 Jan 2018 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 20 Dec 2017 | 18 Dec 2017 | 001-35000 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 22 Nov 2017 | ||
| 4 | Open 4 document | View SEC filing for 4 | 4 | 17 Feb 2017 | 15 Feb 2017 | 001-35000 |
| 5 | Open 5 document | View SEC filing for 5 | 5 | 06 Jan 2017 | 31 Dec 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 07 Dec 2016 | 05 Dec 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 07 Nov 2016 | 03 Nov 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 07 Oct 2016 | 05 Oct 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 08 Sep 2016 | 06 Sep 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 05 Aug 2016 | 03 Aug 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 05 Apr 2016 | 01 Apr 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 23 Feb 2016 | 19 Feb 2016 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 17 Feb 2016 | 15 Feb 2016 | 001-35000 |
| 5 | Open 5 document | View SEC filing for 5 | 5 | 05 Feb 2016 | 31 Dec 2015 | 001-35000 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 28 Dec 2015 | ||
| 4 | Open 4 document | View SEC filing for 4 | 4 | 18 Dec 2015 | 17 Dec 2015 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 22 May 2015 | 20 May 2015 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 01 May 2015 | 30 Apr 2015 | 001-35000 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 14 Apr 2015 | ||
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 02 Apr 2015 | 01 Apr 2015 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 18 Feb 2015 | 15 Feb 2015 | 001-35000 |
| 5 | Open 5 document | View SEC filing for 5 | PRIMARY DOCUMENT | 06 Jan 2015 | 31 Dec 2014 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 01 May 2014 | 30 Apr 2014 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 02 Apr 2014 | 01 Apr 2014 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 25 Mar 2014 | 24 Mar 2014 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 18 Mar 2014 | 15 Mar 2014 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 19 Feb 2014 | 15 Feb 2014 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 13 Aug 2013 | 12 Aug 2013 | 001-35000 |
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 12 Apr 2013 | 01 Apr 2013 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Apr 2013 | 01 Apr 2013 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Dec 2012 | 03 Dec 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Nov 2012 | 01 Nov 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Oct 2012 | 01 Oct 2012 | 001-35000 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 24 Sep 2012 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Sep 2012 | 04 Sep 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Aug 2012 | 01 Aug 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2012 | 02 Jul 2012 | 001-35000 |
| SC 13D/A | Open SC 13D/A document | View SEC filing for SC 13D/A | SC 13D/A | 18 Jun 2012 | ||
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jun 2012 | 01 Jun 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 May 2012 | 01 May 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 May 2012 | 30 Apr 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Apr 2012 | 02 Apr 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 26 Mar 2012 | 26 Mar 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Mar 2012 | 01 Mar 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2012 | 01 Feb 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 19 Jan 2012 | 17 Jan 2012 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 21 Dec 2011 | 20 Dec 2011 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 25 Mar 2011 | 24 Mar 2011 | 001-35000 |
| SC 13D | Open SC 13D document | View SEC filing for SC 13D | SC 13D | 28 Dec 2010 | ||
| 4/A | Open 4/A document | View SEC filing for 4/A | PRIMARY DOCUMENT | 22 Dec 2010 | 15 Dec 2010 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 21 Dec 2010 | 20 Dec 2010 | 001-35000 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 17 Dec 2010 | 15 Dec 2010 | 001-35000 |
| 3 | Open 3 document | View SEC filing for 3 | PRIMARY DOCUMENT | 13 Dec 2010 | 13 Dec 2010 | 001-35000 |
About this filer
William M. Walker files with the SEC under CIK 0001503841. This page aggregates EDGAR filings and related ownership activity.
FAQ
- What is a CIK?
- A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
- Why are some filings missing?
- New filings appear as the SEC updates EDGAR, and older records can vary by availability.
- How often is this page updated?
- Updates follow new EDGAR submissions and periodic data refreshes.