FILINGS
| AMPG 0001518461 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2021-08-16 | 10-Q | FORM 10-Q | View Document |
| 2021-07-02 | 4 | FORM 4 | View Document |
| 2021-07-02 | 4 | FORM 4 | View Document |
| 2021-07-02 | 4 | FORM 4 | View Document |
| 2021-06-21 | 4 | FORM 4 | View Document |
| 2021-06-01 | SD | FORM SD | View Document |
| 2021-05-25 | 4 | FORM 4 | View Document |
| 2021-05-21 | 4 | FORM 4 | View Document |
| 2021-05-17 | 10-Q | FORM 10-Q | View Document |
| 2021-05-12 | 424B3 | 424B3 | View Document |
| 2021-05-11 | EFFECT | View Document | |
| 2021-05-07 | CORRESP | View Document | |
| 2021-05-06 | UPLOAD | View Document | |
| 2021-04-30 | S-3 | FORM S-3 | View Document |
| 2021-04-29 | D | View Document | |
| 2021-04-26 | SC 13G | SCHEDULE 13G | View Document |
| 2021-04-23 | 4 | FORM 4 | View Document |
| 2021-04-23 | 3 | FORM 3 | View Document |
| 2021-04-19 | 8-K | FORM 8-K | View Document |
| 2021-04-19 | 3 | FORM 3 | View Document |
| 2021-04-16 | 424B5 | 424B5 | View Document |
| 2021-04-15 | 8-K | FORM 8-K | View Document |
| 2021-04-14 | EFFECT | View Document | |
| 2021-04-14 | 8-K | FORM 8-K | View Document |
| 2021-04-12 | UPLOAD | View Document | |
| 2021-04-12 | CORRESP | View Document | |
| 2021-04-12 | CORRESP | View Document | |
| 2021-04-01 | S-3 | FORM S-3 | View Document |
| 2021-03-31 | 10-K | FORM 10-K | View Document |
| 2021-03-30 | 3 | FORM 3 | View Document |
| 2021-02-19 | 8-K | FORM 8-K | View Document |
| 2021-02-18 | 424B4 | 424B4 | View Document |
| 2021-02-16 | EFFECT | View Document | |
| 2021-02-16 | S-1MEF | S-1MEF | View Document |
| 2021-02-16 | CERT | View Document | |
| 2021-02-16 | 8-A12B | 8-A12B | View Document |
| 2021-02-11 | CORRESP | View Document | |
| 2021-02-11 | CORRESP | View Document | |
| 2021-02-05 | S-1/A | FORM S-1/A | View Document |
| 2021-01-22 | 8-K | FORM 8-K | View Document |
| 2021-01-06 | 8-K | FORM 8-K | View Document |
| 2020-12-28 | 8-K | FORM 8-K | View Document |
| 2020-12-21 | DEF 14C | DEF 14C | View Document |
| 2020-12-15 | UPLOAD | View Document | |
| 2020-12-14 | S-8 | FORM S-8 | View Document |
| 2020-12-10 | S-1 | FORM S-1 | View Document |
| 2020-12-09 | PRE 14C | PRE 14C | View Document |
| 2020-11-17 | DEF 14C | DEF 14C | View Document |
| 2020-11-16 | 10-Q | FORM 10-Q | View Document |
| 2020-11-16 | UPLOAD | View Document | |
| 2020-11-05 | PRER14C | PRER 14C | View Document |
| 2020-10-28 | UPLOAD | View Document | |
| 2020-10-14 | PRE 14C | PRE 14C | View Document |
| 2020-09-29 | 8-K | FORM 8-K | View Document |
| 2020-08-20 | 8-K | FORM 8-K | View Document |
| 2020-08-14 | 10-Q | FORM 10-Q | View Document |
| 2020-07-28 | 3 | FORM 3 | View Document |
| 2020-07-28 | SC 13D | SC 13D | View Document |
| 2020-07-28 | 8-K | FORM 8-K | View Document |
| 2020-07-14 | SC 13D | SC 13D | View Document |
| 2020-07-13 | 3 | FORM 3 | View Document |
| 2020-05-15 | 10-Q | FORM 10-Q | View Document |
| 2020-03-25 | 10-K | FORM 10-K | View Document |
| 2020-02-10 | 8-K | FORM 8-K | View Document |
| 2019-11-26 | 8-K/A | FORM 8-K/A | View Document |
| 2019-11-12 | 10-Q | FORM 10-Q | View Document |
| 2019-09-18 | 8-K | FORM 8-K | View Document |
| 2019-07-19 | 10-Q | FORM 10-Q | View Document |
| 2019-07-09 | 8-K | FORM 8-K | View Document |
| 2019-05-14 | 10-Q | FORM 10-Q | View Document |
| 2019-05-13 | 8-K | FORM 8-K | View Document |
| 2019-04-30 | 8-K | FORM 8-K | View Document |
| 2019-03-21 | 10-K | FORM 10-K | View Document |
| 2019-01-25 | 144 | FORM 144 | View Document |
| 2018-12-20 | UPLOAD | View Document | |
| 2018-12-06 | CORRESP | View Document | |
| 2018-12-06 | 10-K/A | FORM 10-K/A | View Document |
| 2018-11-29 | UPLOAD | View Document | |
| 2018-11-14 | 10-Q | FORM 10-Q | View Document |
| 2018-10-19 | 144 | 144 | View Document |
| 2018-08-03 | 10-Q | FORM 10-Q | View Document |
| 2018-07-25 | 144 | 144 | View Document |
| 2018-05-15 | 10-Q | FORM 10-Q | View Document |
| 2018-04-23 | 144 | 144 | View Document |
| 2018-04-02 | 10-K | FORM 10-K | View Document |
| 2018-02-07 | 4 | FORM 4 | View Document |
| 2018-01-25 | 8-K | FORM 8-K | View Document |
| 2018-01-08 | 144 | 144 | View Document |
| 2017-11-14 | 10-Q | FORM 10-Q | View Document |
| 2017-10-24 | 4 | FORM 4 | View Document |
| 2017-10-02 | 144 | FORM 144 | View Document |
| 2017-08-14 | 10-Q | FORM 10-Q | View Document |
| 2017-05-10 | 10-Q | FORM 10-Q | View Document |
| 2017-03-02 | 10-K | FORM 10-K | View Document |
| 2016-11-01 | 10-Q | FORM 10-Q | View Document |
| 2016-08-18 | 10-Q/A | FORM 10-Q/A | View Document |
| 2016-08-12 | 10-Q | FORM 10-Q | View Document |
| 2016-05-13 | 10-Q | FORM 10-Q | View Document |
| 2016-03-31 | 10-K | FORM 10-K | View Document |
| 2016-03-30 | NT 10-K | NT 10-K | View Document |
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