SEC EDGAR filings, ownership reports, and insider transactions for MARSHALL O. LARSEN.
Recent SEC filings for MARSHALL O. LARSEN including 4, 4/A, 3 and more.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open 4 document | View SEC filing for 4 | 17 Nov 2025 | 14 Nov 2025 | 001-35121 | |
| 4 | Open 4 document | View SEC filing for 4 | 06 May 2025 | 02 May 2025 | 001-35121 | |
| 4 | Open 4 document | View SEC filing for 4 | 07 May 2024 | 03 May 2024 | 001-35121 | |
| 4 | Open 4 document | View SEC filing for 4 | 10 May 2023 | 08 May 2023 | 001-35121 | |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 26 Jan 2023 | 24 Jan 2023 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | 06 May 2022 | 04 May 2022 | 001-35121 | |
| 4 | Open 4 document | View SEC filing for 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 27 Jan 2022 | 25 Jan 2022 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | 07 May 2021 | 05 May 2021 | 001-35121 | |
| 4 | Open 4 document | View SEC filing for 4 | 28 Apr 2021 | 26 Apr 2021 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 28 Jan 2021 | 26 Jan 2021 | 001-04802 |
| 4/A | Open 4/A document | View SEC filing for 4/A | 23 Oct 2020 | 12 May 2020 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | 14 May 2020 | 12 May 2020 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 13 May 2020 | 12 May 2020 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 08 May 2020 | 15 Oct 2018 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jan 2020 | 28 Jan 2020 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 09 May 2019 | 08 May 2019 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | 01 May 2019 | 29 Apr 2019 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 24 Jan 2019 | 22 Jan 2019 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 05 Jun 2018 | 01 Jun 2018 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 11 May 2018 | 09 May 2018 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | 01 May 2018 | 30 Apr 2018 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 25 Jan 2018 | 23 Jan 2018 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 | 06 Jun 2017 | 02 Jun 2017 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 05 May 2017 | 03 May 2017 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | 26 Apr 2017 | 24 Apr 2017 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 26 Jan 2017 | 24 Jan 2017 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jun 2016 | 27 May 2016 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 06 May 2016 | 04 May 2016 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | 27 Apr 2016 | 25 Apr 2016 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Jan 2016 | 26 Jan 2016 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2016 | 31 Dec 2015 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Oct 2015 | 02 Oct 2015 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jul 2015 | 30 Jun 2015 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2015 | 29 May 2015 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 08 May 2015 | 06 May 2015 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | 29 Apr 2015 | 27 Apr 2015 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Apr 2015 | 31 Mar 2015 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Feb 2015 | 03 Feb 2015 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 29 Jan 2015 | 27 Jan 2015 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jan 2015 | 31 Dec 2014 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 06 Nov 2014 | 04 Nov 2014 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Nov 2014 | 04 Nov 2014 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Oct 2014 | 30 Sep 2014 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 07 Aug 2014 | 06 Aug 2014 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Aug 2014 | 04 Aug 2014 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jul 2014 | 30 Jun 2014 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jun 2014 | 30 May 2014 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 16 May 2014 | 15 May 2014 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | FORM 4 - | 09 May 2014 | 07 May 2014 | 001-35121 |
| 3 | Open 3 document | View SEC filing for 3 | FORM 3 - | 09 May 2014 | 07 May 2014 | 001-35121 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 May 2014 | 05 May 2014 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | 30 Apr 2014 | 28 Apr 2014 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Apr 2014 | 31 Mar 2014 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jan 2014 | 28 Jan 2014 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2014 | 31 Dec 2013 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Oct 2013 | 30 Sep 2013 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jul 2013 | 30 Jun 2013 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jun 2013 | 31 May 2013 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | 01 May 2013 | 29 Apr 2013 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Apr 2013 | 31 Mar 2013 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Feb 2013 | 31 Jan 2013 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 31 Jan 2013 | 29 Jan 2013 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2013 | 31 Dec 2012 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Nov 2012 | 31 Oct 2012 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Oct 2012 | 30 Sep 2012 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | 14 Sep 2012 | 12 Sep 2012 | 001-00812 | |
| 3 | Open 3 document | View SEC filing for 3 | 14 Sep 2012 | 12 Sep 2012 | 001-00812 | |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Aug 2012 | 31 Jul 2012 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 30 Jul 2012 | 26 Jul 2012 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jul 2012 | 30 Jun 2012 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jun 2012 | 01 Jun 2012 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 May 2012 | 30 Apr 2012 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Apr 2012 | 31 Mar 2012 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Feb 2012 | 31 Jan 2012 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2012 | 03 Jan 2012 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Jan 2012 | 31 Dec 2011 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Oct 2011 | 30 Sep 2011 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jul 2011 | 30 Jun 2011 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 31 May 2011 | 27 May 2011 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 13 May 2011 | 02 May 2011 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Apr 2011 | 31 Mar 2011 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 03 Feb 2011 | 01 Feb 2011 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2011 | 03 Jan 2011 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2011 | 31 Dec 2010 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 08 Nov 2010 | 04 Nov 2010 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 26 Oct 2010 | 25 Oct 2010 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Oct 2010 | 30 Sep 2010 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 09 Aug 2010 | 05 Aug 2010 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Jul 2010 | 30 Jun 2010 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Jun 2010 | 28 May 2010 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 28 Apr 2010 | 26 Apr 2010 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 01 Apr 2010 | 31 Mar 2010 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 02 Feb 2010 | 29 Jan 2010 | 001-04802 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 06 Jan 2010 | 04 Jan 2010 | 001-00892 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 05 Jan 2010 | 31 Dec 2009 | 001-07898 |
| 4 | Open 4 document | View SEC filing for 4 | PRIMARY DOCUMENT | 04 Jan 2010 | 19 Aug 2009 | 001-04802 |
MARSHALL O. LARSEN files with the SEC under CIK 0001024382. This page aggregates EDGAR filings and related ownership activity.