$AMPH SEC Filings

Filing Filed On
4 20 Jan 2021
8-K 12 Jan 2021
4 02 Dec 2020
10-Q 06 Nov 2020
8-K 06 Nov 2020
8-K 06 Nov 2020
4 03 Nov 2020
4 02 Oct 2020
4 02 Sep 2020
4 18 Aug 2020
4 18 Aug 2020
4 12 Aug 2020
8-K/A 10 Aug 2020
10-Q 07 Aug 2020
8-K 06 Aug 2020
4 04 Aug 2020
4 22 Jul 2020
4 08 Jul 2020
4 02 Jul 2020
4 15 Jun 2020