| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2021 | 03 Jun 2021 | 001-32979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2020 | 28 May 2020 | 001-32979 |
| 4 | Open Document | Open Filing | 25 Nov 2019 | 21 Nov 2019 | 001-32979 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 May 2019 | 29 May 2019 | 001-32979 |
| 4 | Open Document | Open Filing | 28 Dec 2018 | 26 Dec 2018 | 001-32979 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Sep 2018 | 25 Sep 2018 | 001-32979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2018 | 31 May 2018 | 001-32979 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Oct 2017 | 09 Oct 2017 | 001-32979 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 10 Aug 2017 | 01 Aug 2017 | 001-32979 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 12 Jul 2016 | 12 Jul 2016 | 001-36179 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Jan 2016 | 01 Jan 2016 | 001-33277 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Dec 2015 | 03 Dec 2015 | 001-36179 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Nov 2015 | 03 Nov 2015 | 001-33277 |
| 3 | Open Document | Open Filing | FORM 3 - | 05 Nov 2015 | 03 Nov 2015 | 001-33277 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 15 Jun 2015 | 11 Jun 2015 | 001-36179 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 16 Jun 2014 | 12 Jun 2014 | 001-36179 |
| 4 | Open Document | Open Filing | 4 | 12 Feb 2014 | 06 Feb 2014 | 001-36179 |