$AMPH
Market Cap:
$AMPH SEC Filings
| Filing | Filed On |
|---|---|
| OWNERSHIP DOCUMENT | 08 Jun 2021 |
| OWNERSHIP DOCUMENT | 08 Jun 2021 |
| OWNERSHIP DOCUMENT | 08 Jun 2021 |
| OWNERSHIP DOCUMENT | 08 Jun 2021 |
| OWNERSHIP DOCUMENT | 04 Jun 2021 |
| OWNERSHIP DOCUMENT | 02 Jun 2021 |
| OWNERSHIP DOCUMENT | 24 May 2021 |
| OWNERSHIP DOCUMENT | 20 May 2021 |
| OWNERSHIP DOCUMENT | 18 May 2021 |
| OWNERSHIP DOCUMENT | 17 May 2021 |
| OWNERSHIP DOCUMENT | 14 May 2021 |
| OWNERSHIP DOCUMENT | 13 May 2021 |
| OWNERSHIP DOCUMENT | 13 May 2021 |
| 8-K | 07 May 2021 |
| 10-Q | 07 May 2021 |
| DEFA14A | 07 May 2021 |
| 8-K | 06 May 2021 |
| DEF 14A | 14 Apr 2021 |
| DEFA14A | 14 Apr 2021 |
| OWNERSHIP DOCUMENT | 18 Mar 2021 |
