Jonathan S. Leff

Entity
Individual
Business address
C/O Deerfield Management Company, L.P, 780 Third Avenue, 37 Th Floor, 10017 New York, NY
Insider ownership signature
/s/ Jennifer Johansson, Attorney-in-fact
All SEC filings
View on sec.gov
Get insider transactions for this reporting owner
Jonathan S. Leff has filed 130 SEC EDGAR filings since 11/26/2003

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES May 14, 2025 May 13, 2025 001-36510
4/A Open Document Open Filing Apr 21, 2025 Apr 14, 2025 001-38762
4 Open Document Open Filing Apr 18, 2025 Apr 14, 2025 001-38762
4 Open Document Open Filing Jul 15, 2024 Jul 11, 2024 001-38762
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES May 31, 2024 May 29, 2024 001-36510
3 Open Document Open Filing Mar 21, 2024 Mar 15, 2024 001-38762
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES May 11, 2023 May 9, 2023 001-36510
3 Open Document Open Filing FORM 3 SUBMISSION Nov 10, 2022 Nov 8, 2022 001-39756
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES May 12, 2022 May 10, 2022 001-36510
4 Open Document Open Filing PRIMARY DOCUMENT May 17, 2021 May 12, 2021 001-36510
4 Open Document Open Filing PRIMARY DOCUMENT Sep 30, 2020 Sep 29, 2020 001-36510
3 Open Document Open Filing PRIMARY DOCUMENT Jun 5, 2020 May 28, 2020 001-36510
4 Open Document Open Filing Jun 12, 2018 Jun 8, 2018 001-36694
4 Open Document Open Filing OWNERSHIP DOCUMENT Aug 4, 2017 Aug 2, 2017 001-36694
3 Open Document Open Filing OWNERSHIP DOCUMENT Aug 4, 2017 Aug 2, 2017 001-36694
4 Open Document Open Filing FORM 4 SUBMISSION Feb 12, 2016 Feb 10, 2016 001-37693
3 Open Document Open Filing FORM 3 SUBMISSION Feb 10, 2016 Feb 10, 2016 001-37693
4 Open Document Open Filing 4 Sep 15, 2015 Sep 11, 2015 001-37449
4 Open Document Open Filing 4 Jul 20, 2015 Jul 16, 2015 001-37449
3 Open Document Open Filing 3 Jun 16, 2015 Jun 16, 2015 001-37449