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

$AMPH SEC Filings

Filing Filed On
OWNERSHIP DOCUMENT 17 Mar 2022
OWNERSHIP DOCUMENT 17 Mar 2022
OWNERSHIP DOCUMENT 17 Mar 2022
OWNERSHIP DOCUMENT 17 Mar 2022
OWNERSHIP DOCUMENT 17 Mar 2022
OWNERSHIP DOCUMENT 17 Mar 2022
10-K 11 Mar 2022
S-8 11 Mar 2022
8-K 10 Mar 2022
OWNERSHIP DOCUMENT 09 Mar 2022
OWNERSHIP DOCUMENT 01 Mar 2022
OWNERSHIP DOCUMENT 01 Mar 2022
OWNERSHIP DOCUMENT 01 Mar 2022
SC 13G/A 14 Feb 2022
SC 13G/A 11 Feb 2022
SCHEDULE 13G/A 09 Feb 2022
OWNERSHIP DOCUMENT 09 Feb 2022
OWNERSHIP DOCUMENT 09 Feb 2022
OWNERSHIP DOCUMENT 02 Feb 2022
SC 13G/A 28 Jan 2022