$AMPH SEC Filings

Filing Filed On
144 15 Jun 2023
OWNERSHIP DOCUMENT 14 Jun 2023
OWNERSHIP DOCUMENT 12 Jun 2023
OWNERSHIP DOCUMENT 07 Jun 2023
OWNERSHIP DOCUMENT 07 Jun 2023
OWNERSHIP DOCUMENT 07 Jun 2023
OWNERSHIP DOCUMENT 07 Jun 2023
OWNERSHIP DOCUMENT 07 Jun 2023
OWNERSHIP DOCUMENT 07 Jun 2023
OWNERSHIP DOCUMENT 06 Jun 2023
8-K 06 Jun 2023
OWNERSHIP DOCUMENT 05 Jun 2023
OWNERSHIP DOCUMENT 05 Jun 2023
144 02 Jun 2023
144 01 Jun 2023
OWNERSHIP DOCUMENT 22 May 2023
OWNERSHIP DOCUMENT 19 May 2023
144 19 May 2023
OWNERSHIP DOCUMENT 19 May 2023
144 18 May 2023