| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 22 May 2023 | 18 May 2023 | 001-33891 | |
| 4 | Open Document | Open Filing | FORM 4 | 23 May 2022 | 19 May 2022 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 21 May 2021 | 19 May 2021 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 26 May 2020 | 21 May 2020 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2020 | 16 Mar 2020 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 29 May 2019 | 24 May 2019 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 28 May 2019 | 24 May 2019 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Jun 2018 | 25 Jun 2018 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 29 May 2018 | 24 May 2018 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 26 May 2017 | 25 May 2017 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 23 May 2016 | 19 May 2016 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Nov 2015 | 16 Nov 2015 | 001-33891 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Nov 2014 | 20 Nov 2014 | 001-33891 |