| ALTG 0001759824 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2020-08-13 | 424B3 | 424B3 | View Document |
| 2020-08-13 | 10-Q | 10-Q | View Document |
| 2020-08-13 | 8-K | 8-K | View Document |
| 2020-07-31 | 8-K | 8-K | View Document |
| 2020-07-20 | S-8 | S-8 | View Document |
| 2020-07-01 | 8-K | 8-K | View Document |
| 2020-06-26 | SC 13G | View Document | |
| 2020-06-18 | 8-K | 8-K | View Document |
| 2020-06-15 | 8-K | 8-K | View Document |
| 2020-06-02 | 8-K | 8-K | View Document |
| 2020-05-14 | 424B3 | 424B3 | View Document |
| 2020-05-14 | 10-Q | 10-Q | View Document |
| 2020-05-14 | 8-K | 8-K | View Document |
| 2020-04-27 | 4/A | View Document | |
| 2020-04-27 | 4/A | View Document | |
| 2020-04-27 | 4/A | View Document | |
| 2020-04-27 | 4/A | View Document | |
| 2020-04-27 | 4/A | View Document | |
| 2020-04-03 | EFFECT | View Document | |
| 2020-04-03 | 424B3 | View Document | |
| 2020-04-01 | CORRESP | View Document | |
| 2020-04-01 | UPLOAD | View Document | |
| 2020-03-31 | 8-K/A | FORM 8-K/A | View Document |
| 2020-03-25 | S-1 | REGISTRATION STATEMENT | View Document |
| 2020-03-25 | 8-K/A | AMENDMENT TO CURRENT REPORT | View Document |
| 2020-03-25 | 10-K | ANNUAL REPORT | View Document |
| 2020-03-25 | 8-K | CURRENT REPORT | View Document |
| 2020-03-17 | SC 13D/A | AMENDMENT NO. 4 TO SCHEDULE 13D | View Document |
| 2020-03-13 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2020-03-10 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2020-03-04 | 8-K | 8-K | View Document |
| 2020-03-03 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2020-03-03 | SC 13D/A | AMENDMENT NO. 3 TO SCHEDULE 13D/A | View Document |
| 2020-02-27 | 4 | View Document | |
| 2020-02-24 | 4 | View Document | |
| 2020-02-24 | SC 13D/A | FORM SC 13D/A | View Document |
| 2020-02-24 | SC 13D | SCHEDULE 13D | View Document |
| 2020-02-24 | SC 13D/A | AMENDMENT NO. 1 TO SCHEDULE 13D | View Document |
| 2020-02-19 | 4 | View Document | |
| 2020-02-19 | 4 | View Document | |
| 2020-02-19 | 4 | View Document | |
| 2020-02-19 | 4 | View Document | |
| 2020-02-19 | 4 | View Document | |
| 2020-02-19 | 3 | View Document | |
| 2020-02-19 | 3 | View Document | |
| 2020-02-19 | 3 | View Document | |
| 2020-02-19 | 3 | View Document | |
| 2020-02-19 | 3 | View Document | |
| 2020-02-19 | 4 | View Document | |
| 2020-02-18 | 25-NSE | View Document | |
| 2020-02-14 | 4 | View Document | |
| 2020-02-14 | SC 13G | SC 13G | View Document |
| 2020-02-14 | 8-K12B | FOR REGISTRATION OF CERTAIN CLASSES | View Document |
| 2020-02-14 | 8-A12B/A | AMENDMENT NO. 1 TO FORM 8-A | View Document |
| 2020-02-14 | SC 13G/A | AQR CAPITAL MANAGEMENT LLC | View Document |
| 2020-02-14 | SC 13G/A | SC 13G | View Document |
| 2020-02-13 | SC 13G/A | B. RILEY PRINCIPAL MERGER CORP. | View Document |
| 2020-02-12 | 4 | View Document | |
| 2020-02-11 | 8-K | CURRENT REPORT | View Document |
| 2020-02-10 | 4 | View Document | |
| 2020-02-10 | 4 | View Document | |
| 2020-02-10 | SC 13G | FORM SC 13G | View Document |
| 2020-02-07 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | View Document |
| 2020-02-07 | 8-K | CURRENT REPORT | View Document |
| 2020-02-05 | 4 | View Document | |
| 2020-02-05 | 4 | View Document | |
| 2020-02-04 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | View Document |
| 2020-02-04 | 8-K | CURRENT REPORT | View Document |
| 2020-01-28 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2020-01-28 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2020-01-23 | DEFM14A | PROXY STATEMENT | View Document |
| 2020-01-17 | 4 | View Document | |
| 2020-01-14 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2020-01-13 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | View Document |
| 2020-01-13 | 8-K | CURRENT REPORT | View Document |
| 2019-12-13 | PREM14A | PRELIMINARY PROXY STATEMENT | View Document |
| 2019-12-13 | DEFA14A | FORM DEFA14A | View Document |
| 2019-12-13 | 8-K | CURRENT REPORT | View Document |
| 2019-12-13 | 8-K | CURRENT REPORT | View Document |
| 2019-12-13 | DEFA14A | CURRENT REPORT | View Document |
| 2019-11-12 | 10-Q | QUARTERLY REPORT | View Document |
| 2019-08-23 | 8-K | CURRENT REPORT | View Document |
| 2019-08-16 | 4 | View Document | |
| 2019-08-13 | 10-Q | QUARTERLY REPORT | View Document |
| 2019-05-21 | 10-Q | FORM 10-Q | View Document |
| 2019-04-22 | 8-K | FORM 8-K | View Document |
| 2019-04-18 | SC 13G | B. RILEY PRINCIPAL MERGER CORP. | View Document |
| 2019-04-17 | 8-K | FORM 8-K | View Document |
| 2019-04-16 | SC 13G | AQR CAPITAL MANAGEMENT LLC | View Document |
| 2019-04-15 | SC 13D | SC 13D | View Document |
| 2019-04-12 | 4 | FORM 4 | View Document |
| 2019-04-11 | 4 | FORM 4 | View Document |
| 2019-04-11 | 8-K | FORM 8-K | View Document |
| 2019-04-09 | 424B4 | 424B4 | View Document |
| 2019-04-09 | 3 | FORM 3 | View Document |
| 2019-04-09 | 3 | FORM 3 | View Document |
| 2019-04-09 | 3 | FORM 3 | View Document |
| 2019-04-08 | EFFECT | View Document | |
| 2019-04-08 | 3 | FORM 3 | View Document |
| 2019-04-08 | 3 | FORM 3 | View Document |