LEONARD S. SCHLEIFER SEC EDGAR Filings (CIK 0001218629)

SEC EDGAR filings, ownership reports, and insider transactions for LEONARD S. SCHLEIFER.

Business address
777 Old Saw Mill River Road, Tarrytown, NY, 10591
Top holdings (ownership)
REGN
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LEONARD S. SCHLEIFER has filed 72 SEC EDGAR filings since 13 Feb 2003

Latest Filings

Recent SEC filings for LEONARD S. SCHLEIFER including 4, 144, SC 13G/A and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Jan 2026 31 Dec 2025 000-19034
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 OWNERSHIP DOCUMENT 13 Jun 2024 11 Jun 2024 000-19034
144 Open 144 document View SEC filing for 144 12 Jun 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Jun 2024 06 Jun 2024 000-19034
144 Open 144 document View SEC filing for 144 06 Jun 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 May 2024 17 May 2024 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 May 2024 13 May 2024 000-19034
144 Open 144 document View SEC filing for 144 14 May 2024
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Dec 2023 11 Dec 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 May 2023 15 May 2023 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Apr 2022 05 Apr 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Apr 2022 31 Mar 2022 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 19 Nov 2021 19 Nov 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Aug 2021 18 Aug 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Aug 2021 16 Aug 2021 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Aug 2021 06 Aug 2021 000-19034
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 05 Jan 2021 31 Dec 2020 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 May 2020 11 May 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 22 Mar 2019 21 Mar 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 PRIMARY DOCUMENT 13 Dec 2017 12 Dec 2017 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 19 Dec 2016 15 Dec 2016 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Dec 2015 16 Dec 2015 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Sep 2015 02 Sep 2015 000-19034
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jan 2015 02 Jan 2015 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 18 Dec 2014 16 Dec 2014 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Nov 2014 11 Nov 2014 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Nov 2014 31 Oct 2014 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Oct 2014 27 Oct 2014 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Dec 2013 13 Dec 2013 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Oct 2013 01 Oct 2013 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Sep 2013 18 Sep 2013 000-19034
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 11 Sep 2013 09 Sep 2013 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 May 2013 01 May 2013 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 21 Mar 2013 19 Mar 2013 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Mar 2013 13 Mar 2013 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Mar 2013 05 Mar 2013 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Dec 2012 14 Dec 2012 000-19034
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 19 Nov 2012 16 Nov 2012 000-19034
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 02 May 2012 01 May 2012 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Feb 2012 14 Feb 2012 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Dec 2011 17 Dec 2008 000-19034
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 08 Sep 2011 06 Sep 2011 000-19034
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Dec 2010 14 Dec 2010 000-19034

About this filer

LEONARD S. SCHLEIFER files with the SEC under CIK 0001218629. This page aggregates EDGAR filings and related ownership activity.

See reporting owner transactions.

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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