| AMPH 0001297184 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2026-11-04 | 144 | View Document | |
| 2026-09-23 | 4 | View Document | |
| 2026-09-21 | 144 | View Document | |
| 2026-09-17 | 4 | View Document | |
| 2026-09-03 | 4 | View Document | |
| 2026-09-01 | 144 | View Document | |
| 2026-08-18 | 144 | View Document | |
| 2026-08-12 | 4 | View Document | |
| 2026-08-11 | 4 | View Document | |
| 2026-08-11 | 144 | View Document | |
| 2026-08-07 | 144 | View Document | |
| 2026-08-06 | 10-Q | 10-Q | View Document |
| 2026-08-06 | 8-K | 8-K | View Document |
| 2026-07-14 | SCHEDULE 13G | View Document | |
| 2026-07-13 | 4 | View Document | |
| 2026-07-13 | 3 | View Document | |
| 2026-07-13 | 8-K | 8-K | View Document |
| 2026-07-08 | 8-K | 8-K | View Document |
| 2026-06-03 | 4 | View Document | |
| 2026-06-03 | 4 | View Document | |
| 2026-06-03 | 4 | View Document | |
| 2026-06-03 | 4 | View Document | |
| 2026-06-03 | 4 | View Document | |
| 2026-06-03 | 4 | View Document | |
| 2026-06-03 | 8-K | 8-K | View Document |
| 2026-05-07 | 10-Q | 10-Q | View Document |
| 2026-05-07 | 8-K | 8-K | View Document |
| 2026-04-13 | ARS | ARS | View Document |
| 2026-04-13 | DEFA14A | DEFA14A | View Document |
| 2026-04-13 | DEF 14A | DEF 14A | View Document |
| 2026-03-26 | SCHEDULE 13G/A | View Document | |
| 2026-03-17 | 4 | View Document | |
| 2026-03-17 | 4 | View Document | |
| 2026-03-17 | 4 | View Document | |
| 2026-03-17 | 4 | View Document | |
| 2026-03-16 | 8-K | 8-K | View Document |
| 2026-03-11 | 4 | View Document | |
| 2026-03-11 | 4 | View Document | |
| 2026-03-11 | 4 | View Document | |
| 2026-03-11 | 4 | View Document | |
| 2026-03-10 | 4 | View Document | |
| 2026-03-10 | 4 | View Document | |
| 2026-03-10 | 4 | View Document | |
| 2026-03-10 | 4 | View Document | |
| 2026-03-06 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2026-03-06 | 4 | View Document | |
| 2026-03-06 | 4 | View Document | |
| 2026-03-06 | 4 | View Document | |
| 2026-03-06 | 8-K | 8-K | View Document |
| 2026-03-06 | 8-K | 8-K | View Document |
| 2026-02-26 | 10-K | 10-K | View Document |
| 2026-02-26 | 8-K | 8-K | View Document |
| 2026-01-12 | 8-K | 8-K | View Document |
| 2025-12-18 | 4 | View Document | |
| 2025-12-15 | 4 | View Document | |
| 2025-12-11 | 144 | View Document | |
| 2025-12-10 | 144 | View Document | |
| 2025-11-28 | 144 | View Document | |
| 2025-11-25 | 4 | View Document | |
| 2025-11-25 | 144 | View Document | |
| 2025-11-17 | 4 | View Document | |
| 2025-11-13 | 144 | View Document | |
| 2025-11-06 | 10-Q | 10-Q | View Document |
| 2025-11-06 | 8-K | 8-K | View Document |
| 2025-11-05 | 4 | View Document | |
| 2025-11-03 | 144 | View Document | |
| 2025-10-24 | 8-K | 1.01 | View Document |
| 2025-10-17 | SCHEDULE 13G/A | View Document | |
| 2025-10-02 | 4 | View Document | |
| 2025-10-01 | 144 | View Document | |
| 2025-09-18 | 8-K | 8-K | View Document |
| 2025-09-03 | 4 | View Document | |
| 2025-09-02 | 144 | View Document | |
| 2025-08-12 | 8-K | 8-K | View Document |
| 2025-08-07 | 10-Q | 10-Q | View Document |
| 2025-08-07 | 8-K | 8-K | View Document |
| 2025-08-04 | 4 | View Document | |
| 2025-08-01 | 144 | View Document | |
| 2025-07-22 | 4 | View Document | |
| 2025-07-22 | 3 | View Document | |
| 2025-07-21 | 8-K | 8-K | View Document |
| 2025-07-03 | 4 | View Document | |
| 2025-07-02 | 144 | View Document | |
| 2025-06-16 | 4 | View Document | |
| 2025-06-04 | 4 | View Document | |
| 2025-06-04 | 4 | View Document | |
| 2025-06-04 | 4 | View Document | |
| 2025-06-04 | 4 | View Document | |
| 2025-06-04 | 4 | View Document | |
| 2025-06-04 | 4 | View Document | |
| 2025-06-04 | 8-K | 8-K | View Document |
| 2025-06-02 | 144 | View Document | |
| 2025-05-20 | 4 | View Document | |
| 2025-05-08 | 10-Q | 10-Q | View Document |
| 2025-05-07 | 8-K | 8-K | View Document |
| 2025-05-02 | 4 | View Document | |
| 2025-05-01 | 144 | View Document | |
| 2025-04-14 | ARS | ARS | View Document |
| 2025-04-14 | DEFA14A | DEFA14A | View Document |
| 2025-04-14 | DEF 14A | DEF 14A | View Document |
