| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Jul 2021 | 22 Jul 2021 | 001-36557 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 Sep 2020 | 08 Sep 2020 | 001-39454 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Jul 2020 | 23 Jul 2020 | 001-36557 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Jul 2019 | 23 Jul 2019 | 001-36557 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Jul 2018 | 24 Jul 2018 | 001-36557 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Sep 2017 | 15 Sep 2017 | 001-36557 |
| 4 | Open Document | Open Filing | 12 May 2017 | 12 May 2017 | 001-06571 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Feb 2017 | 08 Feb 2017 | 001-36557 |
| 4 | Open Document | Open Filing | 31 May 2016 | 27 May 2016 | 001-06571 | |
| 4 | Open Document | Open Filing | 01 Jun 2015 | 29 May 2015 | 001-06571 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Dec 2014 | 12 Dec 2014 | 001-36557 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Sep 2014 | 05 Sep 2014 | 001-36557 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 24 Jul 2014 | 24 Jul 2014 | 001-36557 |
| 4 | Open Document | Open Filing | 03 Jun 2014 | 30 May 2014 | 001-06571 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 May 2014 | 13 May 2014 | 001-11758 |