Amphastar Pharmaceuticals, Inc. reports

Location
11570 Sixth Street, Rancho Cucamonga, CA
Fiscal year end
December 31
Data updated at
9/18/2024, 01:22 AM
Form type Sec Links Description Filing date Reporting date
8-K Report | Data 8-K Aug 30, 2024 Aug 28, 2024
10-Q Report | Data 10-Q Aug 9, 2024 Jun 30, 2024
8-K Report | Data 8-K Aug 7, 2024 Aug 7, 2024
8-K Report | Data 8-K Jun 4, 2024 Jun 3, 2024
10-Q Report | Data 10-Q May 10, 2024 Mar 31, 2024
8-K Report | Data 8-K May 8, 2024 May 8, 2024
SC 13G/A Report Mar 6, 2024
10-K Report | Data 10-K Feb 29, 2024 Dec 31, 2023
8-K Report | Data 8-K Feb 28, 2024 Feb 28, 2024
SC 13G/A Report SCHEDULE 13G/A Feb 13, 2024
SC 13G/A Report SC 13G/A Feb 9, 2024
SC 13G/A Report Jan 23, 2024
SC 13G/A Report Jan 17, 2024
10-Q Report | Data 10-Q Nov 8, 2023 Sep 30, 2023
8-K Report | Data 8-K Nov 8, 2023 Nov 8, 2023
8-K Report | Data 8-K Sep 15, 2023 Sep 11, 2023
8-K/A Report | Data 8-K/A Aug 16, 2023 Jun 30, 2023
10-Q Report | Data 10-Q Aug 9, 2023 Jun 30, 2023
8-K Report | Data 8-K Aug 8, 2023 Aug 8, 2023
8-K Report | Data 8-K Jun 30, 2023 Jun 30, 2023
8-K Report | Data 8-K Jun 6, 2023 Jun 5, 2023
10-Q Report | Data 10-Q May 9, 2023 Mar 31, 2023
8-K Report | Data 8-K May 9, 2023 May 9, 2023
8-K Report | Data 8-K Apr 24, 2023 Apr 21, 2023
8-K Report | Data 8-K Mar 10, 2023 Mar 8, 2023
10-K Report | Data 10-K Mar 1, 2023 Dec 31, 2022
8-K Report | Data 8-K Feb 28, 2023 Feb 28, 2023
8-K Report | Data 8-K Feb 24, 2023 Feb 23, 2023
SC 13G/A Report SCHEDULE 13G/A Feb 9, 2023
SC 13G/A Report Feb 1, 2023
SC 13G/A Report SC 13G/A Jan 27, 2023
SC 13G/A Report Jan 26, 2023
SC 13G/A Report Jan 20, 2023
8-K Report | Data 8-K Nov 18, 2022 Nov 15, 2022
10-Q Report | Data 10-Q Nov 8, 2022 Sep 30, 2022
8-K Report | Data 8-K Nov 7, 2022 Nov 7, 2022
8-K Report | Data 8-K Aug 9, 2022 Aug 4, 2022
10-Q Report | Data 10-Q Aug 9, 2022 Jun 30, 2022
8-K Report | Data 8-K Aug 8, 2022 Aug 8, 2022
8-K Report | Data 8-K Jul 8, 2022 Jul 5, 2022
8-K Report | Data 8-K Jun 13, 2022 Jun 10, 2022
10-Q Report | Data 10-Q May 10, 2022 Mar 31, 2022
8-K Report | Data 8-K May 9, 2022 May 9, 2022
8-K Report | Data 8-K Apr 22, 2022 Apr 19, 2022
10-K Report | Data 10-K Mar 11, 2022 Dec 31, 2021
8-K Report | Data 8-K Mar 10, 2022 Mar 10, 2022
SC 13G/A Report Feb 14, 2022
SC 13G/A Report SC 13G/A Feb 11, 2022
SC 13G/A Report SCHEDULE 13G/A Feb 9, 2022
SC 13G/A Report Jan 28, 2022
10-Q Report | Data 10-Q Nov 9, 2021 Sep 30, 2021
8-K Report | Data 8-K Nov 8, 2021 Nov 8, 2021
8-K Report | Data 8-K Aug 23, 2021 Aug 19, 2021
8-K Report | Data 8-K Aug 20, 2021 Aug 19, 2021
8-K Report | Data 8-K Aug 10, 2021 Aug 5, 2021
10-Q Report | Data 10-Q Aug 9, 2021 Jun 30, 2021
8-K Report | Data 8-K Aug 9, 2021 Aug 9, 2021
8-K Report | Data 8-K Aug 9, 2021 Aug 4, 2021
8-K Report | Data 8-K Jun 8, 2021 Jun 7, 2021
10-Q Report | Data 10-Q May 7, 2021 Mar 31, 2021
8-K Report | Data 8-K May 7, 2021 May 6, 2021
8-K Report | Data 8-K May 6, 2021 May 6, 2021
10-K Report | Data 10-K Mar 15, 2021 Dec 31, 2020
8-K Report | Data 8-K Mar 15, 2021 Mar 15, 2021
SC 13G/A Report SC 13G/A Feb 12, 2021
SC 13G Report Feb 12, 2021
SC 13G/A Report SCHEDULE 13G/A Feb 10, 2021
SC 13G/A Report Jan 26, 2021
8-K Report | Data 8-K Jan 12, 2021 Jan 12, 2021
8-K Report | Data 8-K Nov 6, 2020 Nov 3, 2020
10-Q Report | Data 10-Q Nov 6, 2020 Sep 30, 2020
8-K Report | Data 8-K Nov 6, 2020 Nov 6, 2020
8-K/A Report | Data 8-K/A Aug 10, 2020 Jun 8, 2020
10-Q Report | Data 10-Q Aug 7, 2020 Jun 30, 2020
8-K Report | Data 8-K Aug 6, 2020 Aug 6, 2020
8-K Report | Data 8-K Jun 9, 2020 Jun 8, 2020
10-Q Report | Data 10-Q May 11, 2020 Mar 31, 2020
8-K Report 8-K May 7, 2020 May 7, 2020
8-K/A Report 8-K/A Apr 14, 2020 Apr 10, 2020
8-K Report 8-K Apr 13, 2020 Apr 13, 2020
10-K Report | Data 10-K Mar 16, 2020 Dec 31, 2019
8-K Report 8-K Mar 12, 2020 Mar 12, 2020
SC 13G/A Report SC 13G/A Feb 14, 2020
SC 13G Report SCHEDULE 13G Feb 11, 2020
SC 13G/A Report Feb 4, 2020
10-Q Report | Data 10-Q Nov 8, 2019 Sep 30, 2019
8-K Report 8-K Nov 7, 2019 Nov 7, 2019
10-Q Report | Data 10-Q Aug 9, 2019 Jun 30, 2019
8-K Report 8-K Aug 7, 2019 Aug 7, 2019
8-K Report 8-K Jun 19, 2019 Jun 19, 2019
8-K Report FORM 8-K Jun 13, 2019 Jun 12, 2019
10-Q Report | Data 10-Q May 10, 2019 Mar 31, 2019
8-K Report 8-K May 9, 2019 May 9, 2019
10-K Report | Data 10-K Mar 15, 2019 Dec 31, 2018
8-K Report 8-K Mar 14, 2019 Mar 14, 2019
8-K Report 8-K Mar 12, 2019 Mar 12, 2019
SC 13G/A Report SC 13G/A Feb 13, 2019
SC 13G/A Report Jan 24, 2019
10-Q Report | Data 10-Q Nov 9, 2018 Sep 30, 2018
8-K Report 8-K Nov 8, 2018 Nov 8, 2018
8-K Report 8-K Nov 8, 2018 Nov 7, 2018
10-Q Report | Data 10-Q Aug 9, 2018 Jun 30, 2018
8-K Report 8-K Aug 8, 2018 Aug 8, 2018
8-K Report 8-K Jul 9, 2018 Jul 2, 2018
8-K Report 8-K Jun 8, 2018 Jun 7, 2018
10-Q Report | Data 10-Q May 10, 2018 Mar 31, 2018
8-K Report 8-K May 9, 2018 May 9, 2018
8-K Report 8-K Mar 21, 2018 Mar 21, 2018
10-K Report | Data 10-K Mar 14, 2018 Dec 31, 2017
8-K Report 8-K Mar 12, 2018 Mar 12, 2018
SC 13G/A Report SC 13G/A Feb 9, 2018
SC 13G/A Report Jan 19, 2018
10-Q Report | Data 10-Q Nov 9, 2017 Sep 30, 2017
8-K Report 8-K Nov 8, 2017 Nov 8, 2017
10-Q Report | Data 10-Q Aug 9, 2017 Jun 30, 2017
8-K Report 8-K Aug 9, 2017 Aug 9, 2017
8-K Report | Data 8-K Jul 24, 2017 Jul 24, 2017
8-K Report 8-K Jun 9, 2017 Jun 8, 2017
10-Q Report | Data 10-Q May 10, 2017 Mar 31, 2017
8-K Report 8-K May 8, 2017 May 8, 2017
10-K Report | Data 10-K Mar 15, 2017 Dec 31, 2016
8-K Report 8-K Mar 13, 2017 Mar 13, 2017
SC 13G/A Report SC 13G AMENDMENT NO. 2 Feb 13, 2017
SC 13G Report Jan 9, 2017
8-K Report 8-K Dec 27, 2016 Dec 27, 2016
8-K Report 8-K Nov 10, 2016 Nov 9, 2016
10-Q Report | Data 10-Q Nov 9, 2016 Sep 30, 2016
8-K Report 8-K Nov 8, 2016 Sep 30, 2016
10-Q Report | Data 10-Q Aug 9, 2016 Jun 30, 2016
8-K Report 8-K Aug 8, 2016 Aug 8, 2016
8-K Report 8-K Aug 4, 2016 Aug 1, 2016
8-K Report 8-K Jul 7, 2016 Jun 30, 2016
8-K Report 8-K Jun 10, 2016 Jun 9, 2016
10-Q Report | Data 10-Q May 10, 2016 Mar 31, 2016
8-K Report | Data 8-K May 9, 2016 May 9, 2016
10-K Report | Data 10-K Mar 15, 2016 Dec 31, 2015
8-K Report | Data 8-K Mar 14, 2016 Mar 14, 2016
SC 13G/A Report SC 13G AMENDMENT NO. 1 Feb 16, 2016
10-Q Report | Data 10-Q Nov 13, 2015 Sep 30, 2015
8-K Report 8-K Nov 12, 2015 Nov 12, 2015
10-Q Report | Data FORM 10-Q Aug 13, 2015 Jun 30, 2015
8-K Report FORM 8-K FILING DOCUMENT Aug 12, 2015 Aug 12, 2015
8-K Report FORM 8-K FILING DOCUMENT Jun 22, 2015 Jun 22, 2015
8-K Report 8-K Jun 1, 2015 May 27, 2015
10-Q Report | Data FORM 10-Q May 14, 2015 Mar 31, 2015
8-K Report FORM 8-K FILING DOCUMENT May 13, 2015 May 13, 2015
10-K Report | Data FORM 10-K Mar 26, 2015 Dec 31, 2014
8-K Report FORM 8-K FILING DOCUMENT Mar 24, 2015 Mar 24, 2015
SC 13G/A Report Feb 17, 2015
SC 13G Report SC 13G Feb 12, 2015
10-Q Report | Data FORM 10-Q Nov 13, 2014 Sep 30, 2014
8-K Report FORM 8-K FILING DOCUMENT Nov 12, 2014 Nov 12, 2014
10-Q Report | Data FORM 10-Q Aug 13, 2014 Jun 30, 2014
8-K Report FORM 8-K FILING DOCUMENT Aug 12, 2014 Aug 12, 2014
8-K Report 8-K Aug 6, 2014 Jul 31, 2014
SC 13G Report Jul 3, 2014
8-K Report 8-K Jul 1, 2014 Jun 26, 2014
SC 13G Report Jun 30, 2014