| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 Aug 2021 | 02 Aug 2021 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Aug 2020 | 07 Aug 2020 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2020 | 26 Dec 2017 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Aug 2019 | 08 Aug 2019 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Nov 2018 | 26 Nov 2018 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Jul 2018 | 26 Jul 2018 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Feb 2018 | 22 Feb 2018 | 001-06770 |
| 4 | Open Document | Open Filing | FORM 4 | 31 Jul 2017 | 27 Jul 2017 | 001-06770 |
| 3 | Open Document | Open Filing | FORM 3 | 08 May 2017 | 04 May 2017 | 001-06770 |