$AMPH Market Cap:
Research Board Inbox Deep Research Not Interested Shortlisted

$AMPH SEC Filings

Filing Filed On
8-K 28 Feb 2023
8-K 24 Feb 2023
SCHEDULE 13G/A 09 Feb 2023
OWNERSHIP DOCUMENT 02 Feb 2023
SC 13G/A 01 Feb 2023
SC 13G/A 27 Jan 2023
SC 13G/A 26 Jan 2023
SC 13G/A 20 Jan 2023
OWNERSHIP DOCUMENT 04 Jan 2023
OWNERSHIP DOCUMENT 02 Dec 2022
8-K 18 Nov 2022
10-Q 08 Nov 2022
8-K 07 Nov 2022
OWNERSHIP DOCUMENT 02 Nov 2022
OWNERSHIP DOCUMENT 04 Oct 2022
OWNERSHIP DOCUMENT 02 Sep 2022
OWNERSHIP DOCUMENT 10 Aug 2022
OWNERSHIP DOCUMENT 10 Aug 2022
8-K 09 Aug 2022
10-Q 09 Aug 2022