FILINGS
| AMPH 0001297184 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2024-02-29 | S-8 | S-8 | View Document |
| 2024-02-29 | 10-K | 10-K | View Document |
| 2024-02-28 | 8-K | 8-K | View Document |
| 2024-02-13 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2024-02-09 | SC 13G/A | SC 13G/A | View Document |
| 2024-02-02 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2024-02-01 | 144 | View Document | |
| 2024-01-23 | SC 13G/A | View Document | |
| 2024-01-17 | SC 13G/A | View Document | |
| 2024-01-11 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2024-01-10 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2024-01-10 | 144 | View Document | |
| 2024-01-09 | 144 | View Document | |
| 2024-01-08 | 144 | View Document | |
| 2024-01-03 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2024-01-02 | 144 | View Document | |
| 2023-12-05 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-12-04 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-12-01 | 144 | View Document | |
| 2023-11-20 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-11-17 | 144 | View Document | |
| 2023-11-16 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-11-15 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-11-15 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-11-14 | 144 | View Document | |
| 2023-11-13 | 144 | View Document | |
| 2023-11-13 | 144 | View Document | |
| 2023-11-08 | 10-Q | 10-Q | View Document |
| 2023-11-08 | 8-K | 8-K | View Document |
| 2023-11-02 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-11-01 | 144 | View Document | |
| 2023-10-03 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-10-02 | 144 | View Document | |
| 2023-09-15 | 8-K | 8-K | View Document |
| 2023-09-08 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-09-06 | 144 | View Document | |
| 2023-08-29 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-08-28 | 144 | View Document | |
| 2023-08-21 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-08-16 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-08-16 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-08-16 | 8-K/A | 8-K/A | View Document |
| 2023-08-15 | 144 | View Document | |
| 2023-08-15 | 144 | View Document | |
| 2023-08-09 | 10-Q | 10-Q | View Document |
| 2023-08-08 | 8-K | 8-K | View Document |
| 2023-06-30 | 8-K | 8-K | View Document |
| 2023-06-21 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-20 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-20 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-15 | 144 | View Document | |
| 2023-06-14 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-12 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-07 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-07 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-07 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-07 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-07 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-07 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-06 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-06 | 8-K | 8-K | View Document |
| 2023-06-05 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-05 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-06-02 | 144 | View Document | |
| 2023-06-01 | 144 | View Document | |
| 2023-05-22 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-05-19 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-05-19 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-05-19 | 144 | View Document | |
| 2023-05-18 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-05-18 | 144 | View Document | |
| 2023-05-17 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-05-17 | 144 | View Document | |
| 2023-05-17 | 144 | View Document | |
| 2023-05-16 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-05-16 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-05-16 | 144 | View Document | |
| 2023-05-15 | 144 | View Document | |
| 2023-05-12 | 144 | View Document | |
| 2023-05-09 | 10-Q | 10-Q | View Document |
| 2023-05-09 | 8-K | 8-K | View Document |
| 2023-04-24 | 8-K | 8-K | View Document |
| 2023-04-18 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-04-14 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-04-14 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-04-14 | ARS | ARS | View Document |
| 2023-04-14 | DEFA14A | DEFA14A | View Document |
| 2023-04-14 | DEF 14A | DEF 14A | View Document |
| 2023-04-13 | 144 | View Document | |
| 2023-04-13 | 144 | View Document | |
| 2023-04-12 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-04-12 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-04-04 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-03-20 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-03-20 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-03-20 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-03-20 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-03-17 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-03-17 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2023-03-17 | 4 | OWNERSHIP DOCUMENT | View Document |
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