| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 14 May 2021 | 13 May 2021 | 001-32373 |
| 4 | Open Document | Open Filing | FORM 4 | 15 May 2020 | 14 May 2020 | 001-32373 |
| 4 | Open Document | Open Filing | FORM 4 | 16 May 2019 | 16 May 2019 | 001-32373 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jun 2018 | 07 Jun 2018 | 001-32373 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Nov 2017 | 14 Nov 2017 | 001-32373 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Jun 2017 | 08 Jun 2017 | 001-32373 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Jun 2016 | 03 Jun 2016 | 001-32373 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jun 2015 | 04 Jun 2015 | 001-32373 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jun 2014 | 04 Jun 2014 | 001-32373 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 Jun 2014 | 04 Jun 2014 | 001-32373 |