| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | 25 May 2021 | 25 May 2021 | 001-08931 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 28 Dec 2020 | 27 Nov 2020 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 01 Dec 2020 | 27 Nov 2020 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 23 Nov 2020 | 19 Nov 2020 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Oct 2020 | 01 Oct 2020 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 25 Aug 2020 | 21 Aug 2020 | 001-08931 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 12 Dec 2019 | 01 Oct 2019 | 001-08931 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 06 Dec 2019 | 29 Nov 2019 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Dec 2019 | 29 Nov 2019 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Oct 2019 | 01 Oct 2019 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 May 2019 | 10 May 2019 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 26 Nov 2018 | 21 Nov 2018 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Oct 2018 | 01 Oct 2018 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 Aug 2018 | 14 Aug 2018 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 10 May 2018 | 10 May 2018 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 Dec 2017 | 13 Dec 2016 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Oct 2017 | 01 Oct 2017 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 28 Jul 2017 | 27 Jul 2017 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 30 Nov 2016 | 28 Nov 2016 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 23 Nov 2016 | 10 Oct 2016 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Oct 2016 | 01 Oct 2016 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 12 Feb 2016 | 31 Dec 2015 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 Nov 2015 | 06 Nov 2015 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Oct 2015 | 01 Oct 2015 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 23 Dec 2014 | 01 Oct 2014 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 10 Nov 2014 | 06 Nov 2014 | 001-08931 |
| 4 | Open Document | Open Filing | FORM 4 - | 03 Oct 2014 | 01 Oct 2014 | 001-08931 |