Entity Type
Individual
Filer Snapshot
William C. Martin SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0001205885.
Total Filings
303
Latest Filing
13 Mar 2026
Industry
n/a
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Source: SEC Forms 3/4/5
View Source Filing
4 filed on 13 Mar 2026 for CIK 0001205885.
- Business address
- C/O Raging Capital Ventures, Llc, Ten Princeton Avenue, Po Box 228, Rocky Hill, NJ, 08553
- Top holdings (ownership)
- BNED and IMMR
Quick Takeaways
- William C. Martin is an SEC filer tracked under CIK 0001205885.
- 303 filings are listed on this profile.
- Common form coverage includes 4, 13F-NT, 3 and more.
What Changed
- Latest filing: 4 filed on 13 Mar 2026.
- Report period: 11 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.
Source Evidence
Source: SEC Forms 3/4/5
View Source Filing
4 filed on 13 Mar 2026 for CIK 0001205885.
Return Loop
Why revisit this filer page
A newly filed 4 can change the filing history, ownership context, or next research path for William C. Martin.
- Latest source-backed update
- 4 filed 13 Mar 2026
- Why come back
- Revisit after a new SEC filing appears to compare the updated record with prior filings.
- Latest filing on record: 4 filed 13 Mar 2026.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.
Latest update
What changed recently for William C. Martin
Latest ownership report period: 11 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.
Update date
13 Mar 2026
Page type
Ownership filings
Latest period
11 Mar 2026
Ownership context was refreshed from SEC Forms 3/4/5 filed on 13 Mar 2026.
Filer Overview
William C. Martin has filed 303 SEC EDGAR filings since 06 Jan 2003. Common forms include 4, 13F-NT, 3, 4/A and more.
Latest Filings
Recent SEC filings for William C. Martin 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 | FORM 4 | 13 Mar 2026 | 11 Mar 2026 | 001-37499 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 17 Feb 2026 | 31 Dec 2025 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 02 Feb 2026 | 30 Jan 2026 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 18 Nov 2025 | 14 Nov 2025 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2025 | 30 Sep 2025 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | 4 | 04 Nov 2025 | 31 Oct 2025 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2025 | 30 Jun 2025 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Aug 2025 | 31 Jul 2025 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2025 | 01 Jul 2025 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2025 | 31 Mar 2025 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 08 May 2025 | 02 May 2025 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 May 2025 | 30 Apr 2025 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Apr 2025 | 01 Apr 2025 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Mar 2025 | 31 Jan 2025 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 14 Mar 2025 | 12 Mar 2025 | 001-37499 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Feb 2025 | 31 Dec 2024 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2025 | 01 Jan 2025 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 31 Oct 2024 | 31 Oct 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Oct 2024 | 01 Oct 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 23 Sep 2024 | 20 Sep 2024 | 001-37499 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Aug 2024 | 27 Aug 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 07 Aug 2024 | 06 Aug 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 10 Jul 2024 | 08 Jul 2024 | 001-37499 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jul 2024 | 28 Jun 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 21 Jun 2024 | 19 Jun 2024 | 001-37499 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 12 Jun 2024 | 10 Jun 2024 | 001-37499 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 May 2024 | 03 May 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Apr 2024 | 29 Apr 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Apr 2024 | 29 Mar 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 16 Jan 2024 | 12 Jan 2024 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Jan 2024 | 01 Jan 2024 | 000-21044 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2024 | 29 Dec 2023 | 001-38334 |
| 4/A | Open 4/A document | View SEC filing for 4/A | 20 Dec 2023 | 05 Dec 2023 | 000-21044 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Dec 2023 | 04 Dec 2023 | 000-21044 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 28 Nov 2023 | 24 Nov 2023 | 000-21044 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Nov 2023 | 03 Nov 2023 | 000-21044 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 31 Oct 2023 | 27 Oct 2023 | 000-21044 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 31 Oct 2023 | 27 Oct 2023 | 000-21044 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Oct 2023 | 30 Sep 2023 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2023 | 30 Jun 2023 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Apr 2023 | 01 Apr 2023 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 03 Apr 2023 | 30 Mar 2023 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 21 Mar 2023 | 19 Mar 2023 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 17 Jan 2023 | 13 Jan 2023 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Jan 2023 | 03 Jan 2023 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 18 Oct 2022 | 14 Oct 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 04 Oct 2022 | 01 Oct 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 15 Sep 2022 | 13 Sep 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Sep 2022 | 01 Sep 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 01 Sep 2022 | 30 Aug 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 29 Aug 2022 | 25 Aug 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 22 Aug 2022 | 18 Aug 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jul 2022 | 01 Jul 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 09 Jun 2022 | 07 Jun 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 01 Jun 2022 | 27 May 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 SUBMISSION | 25 May 2022 | 23 May 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Apr 2022 | 01 Apr 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 28 Jan 2022 | 28 Jan 2022 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jan 2022 | 29 Dec 2021 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 15 Nov 2021 | 11 Nov 2021 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 Nov 2021 | 30 Sep 2021 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 10 Nov 2021 | 08 Nov 2021 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 16 Aug 2021 | 30 Jun 2021 | 028-14728 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | 28 May 2021 | 13 May 2021 | 001-38334 | |
| 4/A | Open 4/A document | View SEC filing for 4/A | OWNERSHIP DOCUMENT | 19 May 2021 | 13 May 2021 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 17 May 2021 | 13 May 2021 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 17 May 2021 | 31 Mar 2021 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Feb 2021 | 18 Feb 2021 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 16 Feb 2021 | 31 Dec 2020 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 30 Dec 2020 | 28 Dec 2020 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | 28 Dec 2020 | 22 Dec 2020 | 001-38334 | |
| 4 | Open 4 document | View SEC filing for 4 | 22 Dec 2020 | 18 Dec 2020 | 001-38334 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 18 Dec 2020 | 16 Dec 2020 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 01 Dec 2020 | 27 Nov 2020 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 16 Nov 2020 | 30 Sep 2020 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 04 Sep 2020 | 02 Sep 2020 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2020 | 30 Jun 2020 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 16 Jun 2020 | 12 Jun 2020 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2020 | 31 Mar 2020 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Feb 2020 | 31 Dec 2019 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2019 | 30 Sep 2019 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 24 Sep 2019 | 20 Sep 2019 | 001-35348 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2019 | 30 Jun 2019 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 13 Aug 2019 | 09 Aug 2019 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 08 Aug 2019 | 06 Aug 2019 | 001-38334 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Aug 2019 | 02 Aug 2019 | 001-38334 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2019 | 31 Mar 2019 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Feb 2019 | 31 Dec 2018 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Nov 2018 | 15 Nov 2018 | 001-06311 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 19 Nov 2018 | 15 Nov 2018 | 001-06311 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Nov 2018 | 15 Nov 2018 | 001-33607 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2018 | 30 Sep 2018 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2018 | 30 Jun 2018 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2018 | 31 Mar 2018 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Feb 2018 | 31 Dec 2017 | 028-14728 | |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 26 Dec 2017 | 15 Dec 2017 | 001-35256 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 26 Dec 2017 | 21 Dec 2017 | 001-33607 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 15 Dec 2017 | 13 Dec 2017 | 000-27969 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 12 Dec 2017 | 08 Dec 2017 | 000-27969 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 07 Dec 2017 | 05 Dec 2017 | 000-27969 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Dec 2017 | 05 Dec 2017 | 001-15795 |
| 4/A | Open 4/A document | View SEC filing for 4/A | FORM 4/A | 06 Dec 2017 | 01 Dec 2017 | 000-27969 |
| 3/A | Open 3/A document | View SEC filing for 3/A | FORM 3/A | 06 Dec 2017 | 30 Nov 2017 | 000-27969 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 04 Dec 2017 | 30 Nov 2017 | 001-15795 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 16 Nov 2017 | 14 Nov 2017 | 001-33607 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2017 | 30 Sep 2017 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 17 Oct 2017 | 13 Oct 2017 | 001-15795 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 12 Oct 2017 | 10 Oct 2017 | 001-15795 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 15 Aug 2017 | 11 Aug 2017 | 001-11174 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2017 | 30 Jun 2017 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2017 | 31 Mar 2017 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 08 Mar 2017 | 06 Mar 2017 | 001-15795 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 02 Mar 2017 | 28 Feb 2017 | 001-15795 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Feb 2017 | 31 Dec 2016 | 028-14728 | |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 10 Feb 2017 | 01 Feb 2017 | 001-15795 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Dec 2016 | 15 Dec 2016 | 001-35348 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 22 Nov 2016 | 18 Nov 2016 | 001-35348 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 17 Nov 2016 | 15 Nov 2016 | 001-35348 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2016 | 30 Sep 2016 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Nov 2016 | 04 Nov 2016 | 001-05415 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 16 Aug 2016 | 12 Aug 2016 | 001-35348 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 Aug 2016 | 30 Jun 2016 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 11 Aug 2016 | 09 Aug 2016 | 001-35348 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 16 May 2016 | 31 Mar 2016 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 16 Feb 2016 | 31 Dec 2015 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 04 Jan 2016 | 30 Dec 2015 | 001-33607 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 25 Nov 2015 | 19 Nov 2015 | 001-33607 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 16 Nov 2015 | 30 Sep 2015 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 25 Sep 2015 | 23 Sep 2015 | 001-35348 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2015 | 30 Jun 2015 | 028-14728 | |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 01 Jul 2015 | 24 Jun 2015 | 001-35348 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 25 Jun 2015 | 23 Jun 2015 | 001-11174 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2015 | 31 Mar 2015 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 29 Apr 2015 | 28 Apr 2015 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Mar 2015 | 27 Feb 2015 | 001-05415 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 17 Feb 2015 | 31 Dec 2014 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 05 Feb 2015 | 30 Jan 2015 | 001-05415 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Feb 2015 | 30 Jan 2015 | 001-11699 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 30 Jan 2015 | 28 Jan 2015 | 001-05415 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 29 Jan 2015 | 27 Jan 2015 | 001-11699 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 26 Jan 2015 | 22 Jan 2015 | 001-05415 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 21 Jan 2015 | 16 Jan 2015 | 001-05415 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 05 Jan 2015 | 31 Dec 2014 | 001-05415 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 30 Dec 2014 | 26 Dec 2014 | 001-05415 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 30 Dec 2014 | 24 Dec 2014 | 001-05415 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 24 Dec 2014 | 16 Dec 2014 | 001-11699 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 10 Dec 2014 | 08 Dec 2014 | 000-54391 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 09 Dec 2014 | 05 Dec 2014 | 001-11699 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2014 | 30 Sep 2014 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Nov 2014 | 30 Oct 2014 | 001-31614 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2014 | 30 Jun 2014 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 16 Jun 2014 | 12 Jun 2014 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 13 Jun 2014 | 11 Jun 2014 | 001-11699 |
| 4/A | Open 4/A document | View SEC filing for 4/A | OWNERSHIP DOCUMENT | 09 Jun 2014 | 03 Jun 2014 | 001-11699 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 05 Jun 2014 | 03 Jun 2014 | 001-11699 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2014 | 31 Mar 2014 | 028-14728 | |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 09 May 2014 | 07 May 2014 | 001-11699 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Feb 2014 | 31 Dec 2013 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 10 Feb 2014 | 06 Feb 2014 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 31 Jan 2014 | 29 Jan 2014 | 001-31614 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2013 | 30 Sep 2013 | 028-14728 | |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2013 | 30 Jun 2013 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 24 Jun 2013 | 20 Jun 2013 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 30 May 2013 | 28 May 2013 | 001-13070 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2013 | 31 Mar 2013 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 04 Apr 2013 | 02 Apr 2013 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Feb 2013 | 14 Feb 2013 | 000-04408 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Feb 2013 | 31 Dec 2012 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 31 Jan 2013 | 29 Jan 2013 | 000-25779 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 28 Jan 2013 | 24 Jan 2013 | 000-25779 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 25 Jan 2013 | 23 Jan 2013 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 23 Jan 2013 | 18 Jan 2013 | 000-25779 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jan 2013 | 01 Jan 2013 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jan 2013 | 01 Jan 2013 | 000-04408 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jan 2013 | 01 Jan 2013 | 000-25779 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jan 2013 | 01 Jan 2013 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jan 2013 | 01 Jan 2013 | 000-54391 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Jan 2013 | 01 Jan 2013 | 001-11174 |
| 3/A | Open 3/A document | View SEC filing for 3/A | OWNERSHIP DOCUMENT | 03 Jan 2013 | 06 May 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 18 Dec 2012 | 14 Dec 2012 | 000-25779 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 13 Dec 2012 | 11 Dec 2012 | 000-25779 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 11 Dec 2012 | 07 Dec 2012 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 10 Dec 2012 | 06 Dec 2012 | 000-25779 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Dec 2012 | 05 Dec 2012 | 001-11174 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 06 Dec 2012 | 04 Dec 2012 | 000-25779 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Nov 2012 | 30 Sep 2012 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 28 Sep 2012 | 21 Sep 2012 | 000-54391 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 20 Aug 2012 | 16 Aug 2012 | 001-11174 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 14 Aug 2012 | 30 Jun 2012 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 03 Aug 2012 | 01 Aug 2012 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 27 Jul 2012 | 25 Jul 2012 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Jun 2012 | 15 Jun 2012 | 001-11174 |
| 4/A | Open 4/A document | View SEC filing for 4/A | OWNERSHIP DOCUMENT | 19 Jun 2012 | 05 Jun 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 14 Jun 2012 | 12 Jun 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Jun 2012 | 05 Jun 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 30 May 2012 | 25 May 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 21 May 2012 | 17 May 2012 | 001-11174 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 15 May 2012 | 31 Mar 2012 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 11 May 2012 | 09 May 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 16 Apr 2012 | 12 Apr 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 13 Apr 2012 | 11 Apr 2012 | 001-33399 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 05 Apr 2012 | 04 Apr 2012 | 001-33399 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 29 Mar 2012 | 27 Mar 2012 | 001-33399 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 29 Mar 2012 | 26 Mar 2012 | 001-33399 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 29 Mar 2012 | 27 Mar 2012 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 20 Mar 2012 | 16 Mar 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 12 Mar 2012 | 08 Mar 2012 | 001-11174 |
| 4/A | Open 4/A document | View SEC filing for 4/A | OWNERSHIP DOCUMENT | 02 Mar 2012 | 22 Nov 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 02 Mar 2012 | 29 Feb 2012 | 001-13070 |
| 13F-NT | Open 13F-NT document | View SEC filing for 13F-NT | 13 Feb 2012 | 31 Dec 2011 | 028-14728 | |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 02 Feb 2012 | 31 Jan 2012 | 000-53718 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 25 Jan 2012 | 23 Jan 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 20 Jan 2012 | 18 Jan 2012 | 000-53718 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 18 Jan 2012 | 13 Jan 2012 | 001-11174 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 18 Jan 2012 | 11 Jan 2012 | 001-11174 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 12 Jan 2012 | 12 Dec 2011 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 09 Jan 2012 | 05 Jan 2012 | 000-54391 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Jan 2012 | 04 Jan 2012 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 20 Dec 2011 | 15 Dec 2011 | 000-53718 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 13 Dec 2011 | 09 Dec 2011 | 001-31614 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 13 Dec 2011 | 08 Dec 2011 | 001-31614 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 23 Nov 2011 | 22 Nov 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 17 Nov 2011 | 15 Nov 2011 | 000-53718 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 07 Nov 2011 | 03 Nov 2011 | 000-53718 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 19 Oct 2011 | 17 Oct 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 06 Oct 2011 | 04 Oct 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 29 Sep 2011 | 27 Sep 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 26 Sep 2011 | 22 Sep 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 20 Sep 2011 | 16 Sep 2011 | 001-13070 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 14 Sep 2011 | 12 Sep 2011 | 000-04408 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 09 Sep 2011 | 07 Sep 2011 | 000-04408 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 02 Sep 2011 | 31 Aug 2011 | 000-04408 |
| 4 | Open 4 document | View SEC filing for 4 | OWNERSHIP DOCUMENT | 31 Aug 2011 | 29 Aug 2011 | 000-04408 |
| 3 | Open 3 document | View SEC filing for 3 | OWNERSHIP DOCUMENT | 30 Aug 2011 | 08 Aug 2011 | 000-04408 |
| 4 | Open 4 document | View SEC filing for 4 | 28 Jun 2011 | 24 Jun 2011 | 001-13070 | |
| 4 | Open 4 document | View SEC filing for 4 | 27 May 2011 | 25 May 2011 | 001-13070 | |
| 4 | Open 4 document | View SEC filing for 4 | 12 May 2011 | 10 May 2011 | 000-54391 | |
| 3 | Open 3 document | View SEC filing for 3 | 12 May 2011 | 04 May 2011 | 000-54391 | |
| 4 | Open 4 document | View SEC filing for 4 | 10 May 2011 | 09 May 2011 | 001-13070 | |
| 3 | Open 3 document | View SEC filing for 3 | 10 May 2011 | 06 May 2011 | 001-13070 | |
| 4 | Open 4 document | View SEC filing for 4 | 11 Mar 2011 | 09 Mar 2011 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - BILL MARTIN - FINAL | 05 Oct 2010 | 01 Oct 2010 | 001-33312 |
| 4 | Open 4 document | View SEC filing for 4 | 27 Jul 2010 | 01 Jun 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 27 Jul 2010 | 12 Apr 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 27 Jul 2010 | 04 Nov 2009 | 000-53718 | |
| 3/A | Open 3/A document | View SEC filing for 3/A | 27 Jul 2010 | 20 Oct 2009 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 07 Jun 2010 | 03 Jun 2010 | 001-34761 | |
| 4 | Open 4 document | View SEC filing for 4 | 28 May 2010 | 26 May 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 24 May 2010 | 20 May 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 10 May 2010 | 06 May 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - BILL MARTIN MAY 5, 2010 | 05 May 2010 | 03 May 2010 | 001-33312 |
| 4 | Open 4 document | View SEC filing for 4 | 26 Apr 2010 | 22 Apr 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 02 Apr 2010 | 31 Mar 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 31 Mar 2010 | 29 Mar 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 23 Mar 2010 | 19 Mar 2010 | 000-53718 | |
| 4 | Open 4 document | View SEC filing for 4 | 23 Mar 2010 | 31 Dec 2009 | 000-53718 |
About this filer
William C. Martin files with the SEC under CIK 0001205885. 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.