| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 16 Nov 2023 | 16 Nov 2023 | 001-15259 |
| 4 | Open Document | Open Filing | FORM 4 | 19 May 2022 | 17 May 2022 | 001-08443 |
| 4 | Open Document | Open Filing | FORM 4 | 06 May 2022 | 05 May 2022 | 001-15259 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Sep 2021 | 09 Sep 2021 | 001-08443 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Aug 2021 | 09 Aug 2021 | 001-08443 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 May 2021 | 06 May 2021 | 001-15259 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2021 | 01 Apr 2021 | 001-08443 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Mar 2021 | 23 Mar 2021 | 001-08443 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 May 2020 | 13 May 2020 | 001-15259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Apr 2020 | 16 Apr 2020 | 001-15259 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 20 Apr 2020 | 16 Apr 2020 | 001-15259 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Jun 2018 | 22 Jun 2018 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Feb 2018 | 01 Feb 2018 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2017 | 01 Feb 2017 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Dec 2016 | 16 Dec 2016 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Aug 2016 | 01 Aug 2016 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2016 | 01 Feb 2016 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2015 | 01 Aug 2015 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Feb 2015 | 02 Feb 2015 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2014 | 01 Aug 2014 | 000-06715 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2014 | 01 Feb 2014 | 000-06715 |