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

$AMPH SEC Filings

Filing Filed On
OWNERSHIP DOCUMENT 11 Jan 2022
OWNERSHIP DOCUMENT 11 Jan 2022
OWNERSHIP DOCUMENT 04 Jan 2022
OWNERSHIP DOCUMENT 04 Jan 2022
OWNERSHIP DOCUMENT 23 Dec 2021
OWNERSHIP DOCUMENT 22 Dec 2021
OWNERSHIP DOCUMENT 17 Dec 2021
OWNERSHIP DOCUMENT 13 Dec 2021
OWNERSHIP DOCUMENT 23 Nov 2021
EFFECT 19 Nov 2021
CORRESP 17 Nov 2021
UPLOAD 15 Nov 2021
OWNERSHIP DOCUMENT 12 Nov 2021
OWNERSHIP DOCUMENT 12 Nov 2021
S-3 09 Nov 2021
10-Q 09 Nov 2021
8-K 08 Nov 2021
8-K 23 Aug 2021
8-K 20 Aug 2021
OWNERSHIP DOCUMENT 17 Aug 2021