Filer Snapshot

Leon O Moulder Jr. SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001228865.

Entity Type

Individual

Total Filings

78

Latest Filing

02 Apr 2026

Industry

n/a

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Review latest filings on this page Open reporting owner context
Business address
C/O Tesaro, Inc., 1000 Winter Street, Suite 3300, Waltham, MA, 02451
Top holdings (ownership)
ZBIO, DNTH, and ZLAB
Top holdings (Schedule 13D)
ZBIO

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Quick Takeaways

  • Leon O Moulder Jr. is an SEC filer tracked under CIK 0001228865.
  • 78 filings are listed on this profile.
  • Common form coverage includes SCHEDULE 13D/A, 4, SCHEDULE 13D and more.

What Changed

  • Latest filing: SCHEDULE 13D/A filed on 02 Apr 2026.
  • Report period: not specified in filing header.

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

Official SEC Source

SEC EDGAR submissions for CIK 0001228865.

See Original Filing

Filer Overview

Leon O Moulder Jr. has filed 78 SEC EDGAR filings since 12 May 2004. Common forms include SCHEDULE 13D/A, 4, SCHEDULE 13D, 4/A and more.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Leon O Moulder Jr. with direct links to document and filing folders.

Form type Document Filing Description Filing date Reporting date File number(s)
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 02 Apr 2026
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 31 Mar 2026 30 Mar 2026 001-42270
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 03 Feb 2026 02 Feb 2026 001-42270
SCHEDULE 13D Open SCHEDULE 13D document View SEC filing for SCHEDULE 13D 14 Jan 2026
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 09 Jan 2026 07 Jan 2026 001-42270
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 09 Oct 2025 07 Oct 2025 001-42270
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 09 Oct 2025
4 Open 4 document View SEC filing for 4 23 Jun 2025 18 Jun 2025 001-38205
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 12 Jun 2025 10 Jun 2025 001-42270
SCHEDULE 13D Open SCHEDULE 13D document View SEC filing for SCHEDULE 13D 06 Jun 2025
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 19 Feb 2025 18 Feb 2025 001-42270
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 04 Dec 2024 03 Dec 2024 001-42270
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Nov 2024 18 Nov 2024 001-42270
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Sep 2024 18 Sep 2024 001-42270
4/A Open 4/A document View SEC filing for 4/A OWNERSHIP DOCUMENT 17 Sep 2024 12 Sep 2024 001-42270
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 Sep 2024 12 Sep 2024 001-42270
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 12 Sep 2024 12 Sep 2024 001-42270
4 Open 4 document View SEC filing for 4 20 Jun 2024 18 Jun 2024 001-38205
4 Open 4 document View SEC filing for 4 4 28 May 2024 23 May 2024 001-38541
4 Open 4 document View SEC filing for 4 4 24 Jan 2024 22 Jan 2024 001-38541
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Sep 2023 11 Sep 2023 001-38541
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 13 Sep 2023 11 Sep 2023 001-38541
4 Open 4 document View SEC filing for 4 4 30 Jun 2023 29 Jun 2023 001-38205
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 20 Jun 2023 15 Jun 2023 001-36193
4 Open 4 document View SEC filing for 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 13 Jun 2022 09 Jun 2022 001-36193
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 03 Jan 2022 001-38205
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jun 2021 28 May 2021 001-36193
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Jan 2021 15 Jan 2021 001-38205
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 04 Jan 2021 01 Jan 2021 001-38205
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 May 2020 13 May 2020 001-36193
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 May 2019 16 May 2019 001-36193
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Feb 2019 01 Feb 2019 001-36193
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 22 Jan 2019 22 Jan 2019 001-35587
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 May 2018 16 May 2018 001-36193
4 Open 4 document View SEC filing for 4 4 05 Mar 2018 01 Mar 2018 001-35587
4 Open 4 document View SEC filing for 4 4 05 Mar 2018 02 Mar 2018 001-35587
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 06 Jun 2017 17 May 2017 001-36193
4 Open 4 document View SEC filing for 4 4 03 Mar 2017 01 Mar 2017 001-35587
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2016 18 May 2016 001-36193
4 Open 4 document View SEC filing for 4 4 03 Mar 2016 01 Mar 2016 001-35587
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 May 2015 20 May 2015 001-36193
4 Open 4 document View SEC filing for 4 4 10 Mar 2015 06 Mar 2015 001-35587
4 Open 4 document View SEC filing for 4 4 21 Jan 2015 21 Jan 2015 001-36151
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Dec 2014 09 Dec 2014 001-36193
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jun 2014 03 Jun 2014 001-36151
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 May 2014 14 May 2014 001-36193
4/A Open 4/A document View SEC filing for 4/A 4/A 07 Mar 2014 27 Feb 2014 001-35587
4 Open 4 document View SEC filing for 4 4 04 Mar 2014 27 Feb 2014 001-35587
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 30 Jan 2014 30 Jan 2014 001-36193
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Jun 2013 12 Jun 2013 000-21379
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Jun 2013 06 Jun 2013 000-21379
4 Open 4 document View SEC filing for 4 4 08 Mar 2013 06 Mar 2013 001-35587
4 Open 4 document View SEC filing for 4 4 31 Aug 2012 30 Aug 2012 001-35587
4 Open 4 document View SEC filing for 4 4 06 Jul 2012 03 Jul 2012 001-35587
3 Open 3 document View SEC filing for 3 3 27 Jun 2012 27 Jun 2012 001-35587
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Jun 2012 06 Jun 2012 000-21379
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Nov 2011 04 Nov 2011 000-21379
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Jun 2011 02 Jun 2011 000-21379
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Jun 2010 10 Jun 2010 000-21379
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 22 Feb 2010 18 Feb 2010 000-21379
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 22 Feb 2010 18 Feb 2010 000-21379

About this filer

Leon O Moulder Jr. files with the SEC under CIK 0001228865. 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.

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