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 71 SEC EDGAR filings since 13 Feb 2003

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing PRIMARY DOCUMENT 11 Dec 2025 09 Dec 2025 000-19034
4 Open Document Open Filing OWNERSHIP DOCUMENT 13 Jun 2024 11 Jun 2024 000-19034
144 Open Document Open Filing 12 Jun 2024
4 Open Document Open Filing PRIMARY DOCUMENT 10 Jun 2024 06 Jun 2024 000-19034
144 Open Document Open Filing 06 Jun 2024
4 Open Document Open Filing PRIMARY DOCUMENT 17 May 2024 17 May 2024 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 15 May 2024 13 May 2024 000-19034
144 Open Document Open Filing 14 May 2024
4 Open Document Open Filing PRIMARY DOCUMENT 13 Dec 2023 11 Dec 2023 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 17 May 2023 15 May 2023 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 07 Apr 2022 05 Apr 2022 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 04 Apr 2022 31 Mar 2022 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 19 Nov 2021 19 Nov 2021 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 20 Aug 2021 18 Aug 2021 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 17 Aug 2021 16 Aug 2021 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 10 Aug 2021 06 Aug 2021 000-19034
4 Open Document Open Filing OWNERSHIP DOCUMENT 05 Jan 2021 31 Dec 2020 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 13 May 2020 11 May 2020 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 13 Dec 2019 11 Dec 2019 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 22 Mar 2019 21 Mar 2019 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 14 Dec 2018 12 Dec 2018 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 13 Dec 2017 12 Dec 2017 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 19 Dec 2016 15 Dec 2016 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 18 Dec 2015 16 Dec 2015 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 03 Sep 2015 02 Sep 2015 000-19034
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jan 2015 02 Jan 2015 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 18 Dec 2014 16 Dec 2014 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 12 Nov 2014 11 Nov 2014 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 04 Nov 2014 31 Oct 2014 000-19034
4 Open Document Open Filing PRIMARY DOCUMENT 29 Oct 2014 27 Oct 2014 000-19034