Jonathan B. Siegel SEC EDGAR Filings (CIK 0001588209)

SEC EDGAR filings, ownership reports, and insider transactions for Jonathan B. Siegel.

Business address
C/O Kingdon Capital Management, L.L.C., 152 West 57 Th Street, 50 Th Floor, New York, NY, 10019
Top holdings (ownership)
JAGX
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Jonathan B. Siegel has filed 19 SEC EDGAR filings since 04 Oct 2013

Latest Filings

Recent SEC filings for Jonathan B. Siegel including 4, 3, 4/A.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 4 15 Dec 2025 11 Dec 2025 001-36714
4 Open 4 document View SEC filing for 4 4 26 Jun 2025 24 Jun 2025 001-36714
4 Open 4 document View SEC filing for 4 4 02 Apr 2025 31 Mar 2025 001-36714
4 Open 4 document View SEC filing for 4 4 10 Oct 2024 08 Oct 2024 001-36714
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 14 Aug 2023 14 Aug 2023 001-36714
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 19 May 2023 17 May 2023 001-36714
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 18 May 2022 18 May 2022 001-36714
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 30 Mar 2022 28 Mar 2022 001-36714
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 27 Oct 2021 26 Oct 2021 001-40968
4 Open 4 document View SEC filing for 4 4 20 May 2021 18 May 2021 001-36714
4 Open 4 document View SEC filing for 4 4 24 Mar 2020 20 Mar 2020 001-36714
4 Open 4 document View SEC filing for 4 4 25 Jul 2019 23 Jul 2019 001-36714
4 Open 4 document View SEC filing for 4 4 05 Oct 2018 04 Oct 2018 001-36714
4/A Open 4/A document View SEC filing for 4/A 4/A 04 Oct 2018 17 Jul 2018 001-36714
4 Open 4 document View SEC filing for 4 4 20 Jul 2018 18 Jul 2018 001-36714
4 Open 4 document View SEC filing for 4 4 18 Jul 2018 16 Jul 2018 001-36714
4 Open 4 document View SEC filing for 4 4 06 Jun 2018 01 Jun 2018 001-36714
3 Open 3 document View SEC filing for 3 3 10 Apr 2018 29 Mar 2018 001-36714
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 04 Oct 2013 16 Sep 2013 001-09601

About this filer

Jonathan B. Siegel files with the SEC under CIK 0001588209. 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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