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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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