Filer Snapshot

Marion McCourt SEC EDGAR Filings

SEC filings, ownership reports, and insider transactions for CIK 0001663758.

Entity Type

Individual

Total Filings

99

Latest Filing

11 Dec 2025

Industry

n/a

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Go to latest filings table Open reporting owner context
Source: SEC Forms 3/4/5

4 filed on 11 Dec 2025 for CIK 0001663758.

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Business address
C/O Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY, 10591
Top holdings (ownership)
REGN

Quick Takeaways

  • Marion McCourt is an SEC filer tracked under CIK 0001663758.
  • 99 filings are listed on this profile.
  • Common form coverage includes 4, 144, 3.

What Changed

  • Latest filing: 4 filed on 11 Dec 2025.
  • Report period: 09 Dec 2025.

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

4 filed on 11 Dec 2025 for CIK 0001663758.

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Return Loop

Why revisit this filer page

A newly filed 4 can change the filing history, ownership context, or next research path for Marion McCourt.

Latest source-backed update
4 filed 11 Dec 2025
Why come back
Revisit after a new SEC filing appears to compare the updated record with prior filings.
  • Latest filing on record: 4 filed 11 Dec 2025.
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Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.

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Latest update

What changed recently for Marion McCourt

Ownership report updated

Latest ownership report period: 09 Dec 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

11 Dec 2025

Page type

Ownership filings

Latest period

09 Dec 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 11 Dec 2025.

Open ownership filings Browse recent public updates

Filer Overview

Marion McCourt has filed 99 SEC EDGAR filings since 04 Feb 2016. Common forms include 4, 144, 3.

Reporting owner transactions Latest 13F filings

Latest Filings

Recent SEC filings for Marion McCourt 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 PRIMARY DOCUMENT 11 Dec 2025 09 Dec 2025 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 09 Dec 2025 05 Dec 2025 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Dec 2024 16 Dec 2024 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Dec 2024 06 Dec 2024 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Nov 2024 01 Nov 2024 000-19034
144 Open 144 document View SEC filing for 144 01 Nov 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Oct 2024 01 Oct 2024 000-19034
144 Open 144 document View SEC filing for 144 01 Oct 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Sep 2024 03 Sep 2024 000-19034
144 Open 144 document View SEC filing for 144 03 Sep 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Aug 2024 01 Aug 2024 000-19034
144 Open 144 document View SEC filing for 144 01 Aug 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2024 01 Jul 2024 000-19034
144 Open 144 document View SEC filing for 144 01 Jul 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jun 2024 03 Jun 2024 000-19034
144 Open 144 document View SEC filing for 144 03 Jun 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 May 2024 01 May 2024 000-19034
144 Open 144 document View SEC filing for 144 01 May 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2024 01 Apr 2024 000-19034
144 Open 144 document View SEC filing for 144 01 Apr 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Mar 2024 01 Mar 2024 000-19034
144 Open 144 document View SEC filing for 144 01 Mar 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Feb 2024 05 Feb 2024 000-19034
144 Open 144 document View SEC filing for 144 05 Feb 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Feb 2024 01 Feb 2024 000-19034
144 Open 144 document View SEC filing for 144 01 Feb 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Jan 2024 02 Jan 2024 000-19034
144 Open 144 document View SEC filing for 144 02 Jan 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Dec 2023 12 Dec 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Dec 2023 08 Dec 2023 000-19034
144 Open 144 document View SEC filing for 144 11 Dec 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Nov 2023 01 Nov 2023 000-19034
144 Open 144 document View SEC filing for 144 01 Nov 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Oct 2023 02 Oct 2023 000-19034
144 Open 144 document View SEC filing for 144 02 Oct 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Sep 2023 01 Sep 2023 000-19034
144 Open 144 document View SEC filing for 144 01 Sep 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Aug 2023 01 Aug 2023 000-19034
144 Open 144 document View SEC filing for 144 01 Aug 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Jul 2023 03 Jul 2023 000-19034
144 Open 144 document View SEC filing for 144 03 Jul 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jun 2023 01 Jun 2023 000-19034
144 Open 144 document View SEC filing for 144 01 Jun 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Apr 2023 03 Apr 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Feb 2023 12 Feb 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Feb 2023 07 Feb 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Feb 2023 01 Feb 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2023 03 Jan 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Dec 2022 16 Dec 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2022 09 Dec 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Dec 2022 01 Dec 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Nov 2022 04 Nov 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Nov 2022 01 Nov 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Oct 2022 03 Oct 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Sep 2022 01 Sep 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Aug 2022 01 Aug 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jul 2022 01 Jul 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Jun 2022 01 Jun 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 May 2022 02 May 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Apr 2022 01 Apr 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2022 01 Mar 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Feb 2022 01 Feb 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2022 03 Jan 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Dec 2021 11 Dec 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Dec 2021 08 Dec 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Dec 2021 01 Dec 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Nov 2021 01 Nov 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Oct 2021 01 Oct 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Sep 2021 01 Sep 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Aug 2021 02 Aug 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Jul 2021 01 Jul 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Jun 2021 07 Jun 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 May 2021 07 May 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Dec 2020 09 Dec 2020 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 Oct 2020 20 Aug 2020 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2019 11 Dec 2019 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 14 Dec 2018 12 Dec 2018 000-19034
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jul 2018 02 Jul 2018 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Apr 2018 02 Apr 2018 001-36365
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Feb 2018 12 Feb 2018 000-19034
3 Open 3 document View SEC filing for 3 3 12 Feb 2018 12 Feb 2018 000-19034
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2018 02 Jan 2018 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Jan 2018 02 Jan 2018 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2017 02 Oct 2017 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 03 Jul 2017 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2017 20 Jun 2017 001-37587
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Apr 2017 07 Apr 2017 001-37418
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 11 Apr 2017 07 Apr 2017 001-37418
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2017 03 Apr 2017 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 31 Mar 2017 29 Mar 2017 001-37587
3 Open 3 document View SEC filing for 3 FORM 3 31 Mar 2017 29 Mar 2017 001-37587
4 Open 4 document View SEC filing for 4 FORM 4 27 Jan 2017 25 Jan 2017 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 27 Jan 2017 25 Jan 2017 001-36365
3 Open 3 document View SEC filing for 3 FORM 3 27 Jan 2017 25 Jan 2017 001-36365
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 30 Sep 2016 28 Sep 2016 001-32836
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Feb 2016 16 Feb 2016 001-32836
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 04 Feb 2016 03 Feb 2016 001-32836
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 04 Feb 2016 01 Feb 2016 001-32836

About this filer

Marion McCourt files with the SEC under CIK 0001663758. 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.
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Updates follow new EDGAR submissions and periodic data refreshes.