William C. Martin

Business address
C/O Raging Capital Ventures, Llc, Ten Princeton Avenue, Po Box 228, Rocky Hill, NJ, 08553
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William C. Martin has filed 300 SEC EDGAR filings since 1/6/2003

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 4 Nov 18, 2025 Nov 14, 2025 001-38334
13F-NT Open Document Open Filing Nov 14, 2025 Sep 30, 2025 028-14728
4 Open Document Open Filing 4 Nov 4, 2025 Oct 31, 2025 001-38334
13F-NT Open Document Open Filing Aug 14, 2025 Jun 30, 2025 028-14728
4 Open Document Open Filing PRIMARY DOCUMENT Aug 5, 2025 Jul 31, 2025 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Jul 3, 2025 Jul 1, 2025 001-38334
13F-NT Open Document Open Filing May 15, 2025 Mar 31, 2025 028-14728
4 Open Document Open Filing PRIMARY DOCUMENT May 8, 2025 May 2, 2025 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT May 2, 2025 Apr 30, 2025 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Apr 2, 2025 Apr 1, 2025 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Mar 24, 2025 Jan 31, 2025 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 14, 2025 Mar 12, 2025 001-37499
13F-NT Open Document Open Filing Feb 14, 2025 Dec 31, 2024 028-14728
4 Open Document Open Filing PRIMARY DOCUMENT Jan 3, 2025 Jan 1, 2025 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Oct 31, 2024 Oct 31, 2024 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Oct 3, 2024 Oct 1, 2024 001-38334
4 Open Document Open Filing FORM 4 Sep 23, 2024 Sep 20, 2024 001-37499
4 Open Document Open Filing PRIMARY DOCUMENT Aug 29, 2024 Aug 27, 2024 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Aug 7, 2024 Aug 6, 2024 001-38334
4 Open Document Open Filing FORM 4 Jul 10, 2024 Jul 8, 2024 001-37499
4 Open Document Open Filing PRIMARY DOCUMENT Jul 2, 2024 Jun 28, 2024 001-38334
4 Open Document Open Filing FORM 4 Jun 21, 2024 Jun 19, 2024 001-37499
3 Open Document Open Filing OWNERSHIP DOCUMENT Jun 12, 2024 Jun 10, 2024 001-37499
4 Open Document Open Filing PRIMARY DOCUMENT May 6, 2024 May 3, 2024 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Apr 30, 2024 Apr 29, 2024 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Apr 2, 2024 Mar 29, 2024 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Jan 16, 2024 Jan 12, 2024 001-38334
4 Open Document Open Filing FORM 4 Jan 3, 2024 Jan 1, 2024 000-21044
4 Open Document Open Filing PRIMARY DOCUMENT Jan 2, 2024 Dec 29, 2023 001-38334
4/A Open Document Open Filing Dec 20, 2023 Dec 5, 2023 000-21044
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 6, 2023 Dec 4, 2023 000-21044
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 28, 2023 Nov 24, 2023 000-21044
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 7, 2023 Nov 3, 2023 000-21044
4 Open Document Open Filing OWNERSHIP DOCUMENT Oct 31, 2023 Oct 27, 2023 000-21044
3 Open Document Open Filing OWNERSHIP DOCUMENT Oct 31, 2023 Oct 27, 2023 000-21044
4 Open Document Open Filing PRIMARY DOCUMENT Oct 3, 2023 Sep 30, 2023 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Jul 5, 2023 Jun 30, 2023 001-38334
4 Open Document Open Filing FORM 4 Apr 4, 2023 Apr 1, 2023 001-38334
4 Open Document Open Filing FORM 4 Apr 3, 2023 Mar 30, 2023 001-38334
4 Open Document Open Filing FORM 4 Mar 21, 2023 Mar 19, 2023 001-38334
4 Open Document Open Filing FORM 4 Jan 17, 2023 Jan 13, 2023 001-38334
4 Open Document Open Filing FORM 4 Jan 4, 2023 Jan 3, 2023 001-38334
4 Open Document Open Filing FORM 4 Oct 18, 2022 Oct 14, 2022 001-38334
4 Open Document Open Filing FORM 4 Oct 4, 2022 Oct 1, 2022 001-38334
4 Open Document Open Filing FORM 4 Sep 15, 2022 Sep 13, 2022 001-38334
4 Open Document Open Filing FORM 4 Sep 6, 2022 Sep 1, 2022 001-38334
4 Open Document Open Filing FORM 4 Sep 1, 2022 Aug 30, 2022 001-38334
4 Open Document Open Filing FORM 4 Aug 29, 2022 Aug 25, 2022 001-38334
4 Open Document Open Filing FORM 4 Aug 22, 2022 Aug 18, 2022 001-38334
4 Open Document Open Filing FORM 4 Jul 6, 2022 Jul 1, 2022 001-38334
4 Open Document Open Filing FORM 4 Jun 9, 2022 Jun 7, 2022 001-38334
4 Open Document Open Filing FORM 4 Jun 1, 2022 May 27, 2022 001-38334
4 Open Document Open Filing FORM 4 SUBMISSION May 25, 2022 May 23, 2022 001-38334
4 Open Document Open Filing FORM 4 Apr 5, 2022 Apr 1, 2022 001-38334
4 Open Document Open Filing PRIMARY DOCUMENT Jan 28, 2022 Jan 28, 2022 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 3, 2022 Dec 29, 2021 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 15, 2021 Nov 11, 2021 001-38334
13F-NT Open Document Open Filing Nov 15, 2021 Sep 30, 2021 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 10, 2021 Nov 8, 2021 001-38334
13F-NT Open Document Open Filing Aug 16, 2021 Jun 30, 2021 028-14728
4/A Open Document Open Filing May 28, 2021 May 13, 2021 001-38334
4/A Open Document Open Filing OWNERSHIP DOCUMENT May 19, 2021 May 13, 2021 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT May 17, 2021 May 13, 2021 001-38334
13F-NT Open Document Open Filing May 17, 2021 Mar 31, 2021 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 19, 2021 Feb 18, 2021 001-38334
13F-NT Open Document Open Filing Feb 16, 2021 Dec 31, 2020 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 30, 2020 Dec 28, 2020 001-38334
4 Open Document Open Filing Dec 28, 2020 Dec 22, 2020 001-38334
4 Open Document Open Filing Dec 22, 2020 Dec 18, 2020 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 18, 2020 Dec 16, 2020 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 1, 2020 Nov 27, 2020 001-38334
13F-NT Open Document Open Filing Nov 16, 2020 Sep 30, 2020 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 4, 2020 Sep 2, 2020 001-38334
13F-NT Open Document Open Filing Aug 14, 2020 Jun 30, 2020 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 16, 2020 Jun 12, 2020 001-38334
13F-NT Open Document Open Filing May 15, 2020 Mar 31, 2020 028-14728
13F-NT Open Document Open Filing Feb 14, 2020 Dec 31, 2019 028-14728
13F-NT Open Document Open Filing Nov 14, 2019 Sep 30, 2019 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 24, 2019 Sep 20, 2019 001-35348
13F-NT Open Document Open Filing Aug 14, 2019 Jun 30, 2019 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 13, 2019 Aug 9, 2019 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 8, 2019 Aug 6, 2019 001-38334
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 6, 2019 Aug 2, 2019 001-38334
13F-NT Open Document Open Filing May 15, 2019 Mar 31, 2019 028-14728
13F-NT Open Document Open Filing Feb 14, 2019 Dec 31, 2018 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 19, 2018 Nov 15, 2018 001-06311
3 Open Document Open Filing OWNERSHIP DOCUMENT Nov 19, 2018 Nov 15, 2018 001-06311
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 19, 2018 Nov 15, 2018 001-33607
13F-NT Open Document Open Filing Nov 14, 2018 Sep 30, 2018 028-14728
13F-NT Open Document Open Filing Aug 14, 2018 Jun 30, 2018 028-14728
13F-NT Open Document Open Filing May 15, 2018 Mar 31, 2018 028-14728
13F-NT Open Document Open Filing Feb 14, 2018 Dec 31, 2017 028-14728
3 Open Document Open Filing OWNERSHIP DOCUMENT Dec 26, 2017 Dec 15, 2017 001-35256
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 26, 2017 Dec 21, 2017 001-33607
4 Open Document Open Filing FORM 4 Dec 15, 2017 Dec 13, 2017 000-27969
4 Open Document Open Filing FORM 4 Dec 12, 2017 Dec 8, 2017 000-27969
4 Open Document Open Filing FORM 4 Dec 7, 2017 Dec 5, 2017 000-27969
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 7, 2017 Dec 5, 2017 001-15795
4/A Open Document Open Filing FORM 4/A Dec 6, 2017 Dec 1, 2017 000-27969
3/A Open Document Open Filing FORM 3/A Dec 6, 2017 Nov 30, 2017 000-27969
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 4, 2017 Nov 30, 2017 001-15795
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 16, 2017 Nov 14, 2017 001-33607
13F-NT Open Document Open Filing Nov 14, 2017 Sep 30, 2017 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Oct 17, 2017 Oct 13, 2017 001-15795
4 Open Document Open Filing OWNERSHIP DOCUMENT Oct 12, 2017 Oct 10, 2017 001-15795
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 15, 2017 Aug 11, 2017 001-11174
13F-NT Open Document Open Filing Aug 14, 2017 Jun 30, 2017 028-14728
13F-NT Open Document Open Filing May 15, 2017 Mar 31, 2017 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 8, 2017 Mar 6, 2017 001-15795
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 2, 2017 Feb 28, 2017 001-15795
13F-NT Open Document Open Filing Feb 14, 2017 Dec 31, 2016 028-14728
3 Open Document Open Filing OWNERSHIP DOCUMENT Feb 10, 2017 Feb 1, 2017 001-15795
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 19, 2016 Dec 15, 2016 001-35348
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 22, 2016 Nov 18, 2016 001-35348
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 17, 2016 Nov 15, 2016 001-35348
13F-NT Open Document Open Filing Nov 14, 2016 Sep 30, 2016 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 7, 2016 Nov 4, 2016 001-05415
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 16, 2016 Aug 12, 2016 001-35348
13F-NT Open Document Open Filing Aug 15, 2016 Jun 30, 2016 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 11, 2016 Aug 9, 2016 001-35348
13F-NT Open Document Open Filing May 16, 2016 Mar 31, 2016 028-14728
13F-NT Open Document Open Filing Feb 16, 2016 Dec 31, 2015 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 4, 2016 Dec 30, 2015 001-33607
3 Open Document Open Filing OWNERSHIP DOCUMENT Nov 25, 2015 Nov 19, 2015 001-33607
13F-NT Open Document Open Filing Nov 16, 2015 Sep 30, 2015 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Sep 25, 2015 Sep 23, 2015 001-35348
13F-NT Open Document Open Filing Aug 14, 2015 Jun 30, 2015 028-14728
3 Open Document Open Filing OWNERSHIP DOCUMENT Jul 1, 2015 Jun 24, 2015 001-35348
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 25, 2015 Jun 23, 2015 001-11174
13F-NT Open Document Open Filing May 15, 2015 Mar 31, 2015 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Apr 29, 2015 Apr 28, 2015 001-31614
4 Open Document Open Filing OWNERSHIP DOCUMENT Mar 3, 2015 Feb 27, 2015 001-05415
13F-NT Open Document Open Filing Feb 17, 2015 Dec 31, 2014 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 5, 2015 Jan 30, 2015 001-05415
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 3, 2015 Jan 30, 2015 001-11699
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 30, 2015 Jan 28, 2015 001-05415
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 29, 2015 Jan 27, 2015 001-11699
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 26, 2015 Jan 22, 2015 001-05415
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 21, 2015 Jan 16, 2015 001-05415
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 5, 2015 Dec 31, 2014 001-05415
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 30, 2014 Dec 26, 2014 001-05415
3 Open Document Open Filing OWNERSHIP DOCUMENT Dec 30, 2014 Dec 24, 2014 001-05415
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 24, 2014 Dec 16, 2014 001-11699
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 10, 2014 Dec 8, 2014 000-54391
4 Open Document Open Filing OWNERSHIP DOCUMENT Dec 9, 2014 Dec 5, 2014 001-11699
13F-NT Open Document Open Filing Nov 14, 2014 Sep 30, 2014 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Nov 7, 2014 Oct 30, 2014 001-31614
13F-NT Open Document Open Filing Aug 14, 2014 Jun 30, 2014 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 16, 2014 Jun 12, 2014 001-31614
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 13, 2014 Jun 11, 2014 001-11699
4/A Open Document Open Filing OWNERSHIP DOCUMENT Jun 9, 2014 Jun 3, 2014 001-11699
4 Open Document Open Filing OWNERSHIP DOCUMENT Jun 5, 2014 Jun 3, 2014 001-11699
13F-NT Open Document Open Filing May 15, 2014 Mar 31, 2014 028-14728
3 Open Document Open Filing OWNERSHIP DOCUMENT May 9, 2014 May 7, 2014 001-11699
13F-NT Open Document Open Filing Feb 14, 2014 Dec 31, 2013 028-14728
4 Open Document Open Filing OWNERSHIP DOCUMENT Feb 10, 2014 Feb 6, 2014 001-31614
4 Open Document Open Filing OWNERSHIP DOCUMENT Jan 31, 2014 Jan 29, 2014 001-31614