| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Jan 2022 | 11 Jan 2022 | 001-36439 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jan 2021 | 04 Jan 2021 | 001-36439 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jul 2020 | 02 Jul 2020 | 001-36439 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Jan 2020 | 16 Jan 2020 | 001-36439 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 20 Mar 2019 | 18 Mar 2019 | 001-36439 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Feb 2018 | 16 Feb 2018 | 001-36439 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13D | 17 Oct 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Oct 2017 | 10 Oct 2017 | 001-36439 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 05 Oct 2017 | 08 Sep 2017 | 001-36439 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Sep 2017 | 26 Sep 2017 | 001-36439 |
| SC 13D/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13D | 19 Sep 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Sep 2017 | 28 Aug 2017 | 001-36439 |
| SC 13D | Open Document | Open Filing | SCHEDULE 13D | 10 Jul 2017 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2017 | 29 Jun 2017 | 001-36439 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Jul 2017 | 29 Jun 2017 | 001-36439 |