RICHARD K. PRINS SEC EDGAR Filings (CIK 0001047579)

SEC EDGAR filings, ownership reports, and insider transactions for RICHARD K. PRINS.

Business address
C/O Amphastar Pharmaceuticals, Inc., 11570 6 Th Street, Rancho Cucamonga, CA, 91730
Top holdings (ownership)
AMPH and IGC
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RICHARD K. PRINS has filed 97 SEC EDGAR filings since 14 Nov 1997

Latest Filings

Recent SEC filings for RICHARD K. PRINS including 4, 144, 5 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 20 Jan 2026 19 Jan 2026 001-32830
4 Open 4 document View SEC filing for 4 25 Nov 2025 25 Nov 2025 001-36509
144 Open 144 document View SEC filing for 144 25 Nov 2025
4 Open 4 document View SEC filing for 4 22 Oct 2025 17 Oct 2025 001-32830
4 Open 4 document View SEC filing for 4 04 Jun 2025 02 Jun 2025 001-36509
5 Open 5 document View SEC filing for 5 15 May 2025 31 Mar 2025 001-32830
4 Open 4 document View SEC filing for 4 11 Dec 2024 09 Dec 2024 001-36509
144 Open 144 document View SEC filing for 144 09 Dec 2024
4 Open 4 document View SEC filing for 4 13 Nov 2024 12 Nov 2024 001-36509
144 Open 144 document View SEC filing for 144 12 Nov 2024
4 Open 4 document View SEC filing for 4 13 Aug 2024 12 Aug 2024 001-36509
144 Open 144 document View SEC filing for 144 12 Aug 2024
4 Open 4 document View SEC filing for 4 12 Aug 2024 12 Aug 2024 001-32830
144 Open 144 document View SEC filing for 144 09 Aug 2024
4 Open 4 document View SEC filing for 4 05 Jun 2024 03 Jun 2024 001-36509
4 Open 4 document View SEC filing for 4 15 Mar 2024 13 Mar 2024 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Nov 2023 17 Nov 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 15 Nov 2023 13 Nov 2023 001-36509
144 Open 144 document View SEC filing for 144 13 Nov 2023
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 21 Aug 2023 18 Aug 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 Aug 2023 15 Aug 2023 001-36509
144 Open 144 document View SEC filing for 144 15 Aug 2023
4 Open 4 document View SEC filing for 4 27 Jun 2023 31 Mar 2023 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 07 Jun 2023 05 Jun 2023 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 May 2023 12 May 2023 001-36509
144 Open 144 document View SEC filing for 144 12 May 2023
4 Open 4 document View SEC filing for 4 28 Jun 2022 21 Mar 2022 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 14 Jun 2022 10 Jun 2022 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 17 Mar 2022 15 Mar 2022 001-36509
4 Open 4 document View SEC filing for 4 27 Dec 2021 20 Dec 2021 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 13 Dec 2021 10 Dec 2021 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 Nov 2021 22 Nov 2021 001-36509
144 Open 144 document View SEC filing for 144 FORM 144 17 Sep 2021
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 08 Jun 2021 04 Jun 2021 001-36509
4 Open 4 document View SEC filing for 4 14 May 2021 13 May 2021 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 13 May 2021 11 May 2021 001-36509
4 Open 4 document View SEC filing for 4 10 Mar 2021 09 Mar 2021 001-32830
4 Open 4 document View SEC filing for 4 08 Mar 2021 03 Mar 2021 001-32830
144 Open 144 document View SEC filing for 144 FORM 144 02 Mar 2021
4 Open 4 document View SEC filing for 4 04 Dec 2020 01 Dec 2020 001-32830
4 Open 4 document View SEC filing for 4 4 12 Aug 2020 11 Aug 2020 001-36509
5/A Open 5/A document View SEC filing for 5/A 15 Jun 2020 31 Mar 2020 001-32830
4 Open 4 document View SEC filing for 4 4 09 Jun 2020 08 Jun 2020 001-36509
5 Open 5 document View SEC filing for 5 15 May 2020 31 Mar 2020 001-32830
4 Open 4 document View SEC filing for 4 4 14 May 2020 12 May 2020 001-36509
4 Open 4 document View SEC filing for 4 4 27 Aug 2019 23 Aug 2019 001-36509
4 Open 4 document View SEC filing for 4 4 15 Aug 2019 13 Aug 2019 001-36509
4 Open 4 document View SEC filing for 4 4 13 Jun 2019 12 Jun 2019 001-36509
4 Open 4 document View SEC filing for 4 12 Jun 2019 27 Aug 2018 001-32830
4 Open 4 document View SEC filing for 4 4 17 Dec 2018 14 Dec 2018 001-36509
4 Open 4 document View SEC filing for 4 4 30 Nov 2018 29 Nov 2018 001-36509
4 Open 4 document View SEC filing for 4 4 15 Nov 2018 14 Nov 2018 001-36509
4 Open 4 document View SEC filing for 4 4 15 Aug 2018 14 Aug 2018 001-36509
4 Open 4 document View SEC filing for 4 4 11 Jun 2018 07 Jun 2018 001-36509
5 Open 5 document View SEC filing for 5 OWNERSHIP DOCUMENT 10 May 2018 31 Mar 2018 001-32830
5 Open 5 document View SEC filing for 5 OWNERSHIP DOCUMENT 10 May 2018 31 Mar 2018 001-32830
4 Open 4 document View SEC filing for 4 4 16 Mar 2018 15 Mar 2018 001-36509
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 05 Dec 2017 04 Dec 2017 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 05 Dec 2017 04 Dec 2017 001-32830
4 Open 4 document View SEC filing for 4 4 16 Aug 2017 14 Aug 2017 001-36509
4 Open 4 document View SEC filing for 4 4 12 Jun 2017 08 Jun 2017 001-36509
4 Open 4 document View SEC filing for 4 4 12 May 2017 11 May 2017 001-36509
5 Open 5 document View SEC filing for 5 OWNERSHIP DOCUMENT 11 May 2017 31 Mar 2017 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 11 May 2017 09 May 2017 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Dec 2016 16 Dec 2016 001-32830
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 20 Dec 2016 16 Dec 2016 001-32830
4 Open 4 document View SEC filing for 4 4 15 Nov 2016 11 Nov 2016 001-36509
4 Open 4 document View SEC filing for 4 4 19 Aug 2016 18 Aug 2016 001-36509
4 Open 4 document View SEC filing for 4 4 12 Aug 2016 11 Aug 2016 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Jun 2016 09 Jun 2016 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 May 2016 17 May 2016 001-36509
5 Open 5 document View SEC filing for 5 OWNERSHIP DOCUMENT 12 May 2016 31 Mar 2016 001-32830
5 Open 5 document View SEC filing for 5 OWNERSHIP DOCUMENT 12 May 2016 31 Mar 2016 001-32830
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Mar 2016 17 Mar 2016 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Feb 2016 15 Dec 2015 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Nov 2015 17 Nov 2015 001-36509
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Aug 2015 17 Aug 2015 001-36509
4 Open 4 document View SEC filing for 4 4 29 May 2015 27 May 2015 001-36509
4 Open 4 document View SEC filing for 4 4 22 May 2015 20 May 2015 001-36509
4 Open 4 document View SEC filing for 4 4 20 May 2015 19 May 2015 001-36509
5 Open 5 document View SEC filing for 5 OWNERSHIP DOCUMENT 13 May 2015 31 Mar 2015 001-32830
4/A Open 4/A document View SEC filing for 4/A OWNERSHIP DOCUMENT 13 May 2015 16 Oct 2014 001-32830
4/A Open 4/A document View SEC filing for 4/A OWNERSHIP DOCUMENT 13 May 2015 16 Oct 2014 001-32830
5/A Open 5/A document View SEC filing for 5/A OWNERSHIP DOCUMENT 13 May 2015 31 Mar 2014 001-32830
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Nov 2014 16 Oct 2014 001-32830
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 20 Nov 2014 16 Oct 2014 001-32830
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 10 Oct 2014 31 Mar 2014 001-32830
4 Open 4 document View SEC filing for 4 4 19 Aug 2014 15 Aug 2014 001-36509
3 Open 3 document View SEC filing for 3 3 24 Jun 2014 24 Jun 2014 001-36509
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 May 2013 19 Apr 2013 001-32830
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 06 May 2011 18 Apr 2011 001-32830

About this filer

RICHARD K. PRINS files with the SEC under CIK 0001047579. 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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