| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| SC 13D | Report | SC 13D | Jun 25, 2021 | |
| SC 13D/A | Report | SC 13D/A | Jul 27, 2018 | |
| SC 13D/A | Report | AMENDMENT NO. 14 TO FORM SC 13D | Jun 1, 2018 | |
| SC 13D/A | Report | AMENDMENT NO. 13 TO FORM SC 13D | May 25, 2018 | |
| SC 13D/A | Report | AMENDMENT NO. 12 TO FORM SC 13D | Mar 20, 2018 | |
| SC 13D/A | Report | AMENDMENT NO. 11 TO FORM SC 13D | Nov 3, 2017 | |
| SC 13D/A | Report | AMENDMENT NO. 10 TO FORM SC 13D | Jun 7, 2017 | |
| SC 13D/A | Report | AMENDMENT NO. 9 TO SCHEDULE 13D | May 18, 2017 | |
| SC 13D/A | Report | AMENDMENT NO. 8 TO SCHEDULE 13D | Mar 31, 2017 | |
| SC 13D/A | Report | SCHEDULE 13D AMENDMENT 3 | Mar 14, 2017 | |
| SC 13D/A | Report | AMENDMENT NO. 7 TO SCHEDULE 13D | Mar 3, 2017 | |
| SC 13D/A | Report | AMENDMENT NO. 6 TO SCHEDULE 13D | Jan 17, 2017 | |
| SC 13D/A | Report | AMENDMENT NO. 5 TO SCHEDULE 13D | Nov 15, 2016 | |
| SC 13D/A | Report | SC 13D/A | Sep 28, 2016 | |
| SC 13D/A | Report | SC 13D/A | Aug 26, 2016 | |
| SC 13D/A | Report | Aug 23, 2016 | ||
| SC 13D | Report | SC 13D | Aug 12, 2016 | |
| SC 13D/A | Report | Aug 11, 2016 | ||
| SC 13D/A | Report | AMENDMENT NO. 2 | Jan 21, 2016 | |
| SC 13D/A | Report | AMENDMENT NO. 1 | Jan 13, 2016 | |
| SC 13D | Report | Jan 5, 2016 | ||
| SC 13D/A | Report | SC 13D/A | Nov 12, 2014 |