| UPLOAD | SEC-generated letter | May 22, 2019 | |
| SC 13G | Statement of acquisition of beneficial ownership by individuals | May 17, 2019 | |
| 10-Q | Quarterly report [Sections 13 or 15(d)] | May 14, 2019 | |
| 10-K/A | Annual report [Section 13 and 15(d), not S-K Item 405] | May 10, 2019 | |
| 10-12G/A | Registration of securities [Section 12(g)] | May 10, 2019 | |
| CORRESP | Correspondence | May 10, 2019 | |
| UPLOAD | SEC-generated letter | April 30, 2019 | |
| 10-K/A | Annual report [Section 13 and 15(d), not S-K Item 405] | April 26, 2019 | |
| 10-12G/A | Registration of securities [Section 12(g)] | April 15, 2019 | |
| CORRESP | Correspondence | April 15, 2019 | |