| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 06 Jul 2023 | ||
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 29 Jun 2023 | 29 Jun 2023 | 001-12879 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 May 2023 | 19 May 2023 | 001-12879 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 05 May 2023 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 23 Feb 2023 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 26 Aug 2022 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Aug 2022 | 16 Aug 2022 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jun 2022 | 14 Jun 2022 | 001-12879 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 May 2022 | 19 May 2022 | 001-12879 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Sep 2021 | 08 Sep 2021 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Aug 2021 | 17 Aug 2021 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2021 | 16 Jun 2021 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Feb 2021 | 01 Feb 2021 | 000-19357 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Dec 2020 | 30 Nov 2020 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Aug 2020 | 18 Aug 2020 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Aug 2020 | 11 Aug 2020 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2020 | 07 May 2020 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Nov 2019 | 13 Nov 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Aug 2019 | 13 Aug 2019 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2019 | 31 May 2019 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2019 | 20 May 2019 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Nov 2018 | 27 Nov 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Aug 2018 | 14 Aug 2018 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Aug 2018 | 06 Aug 2018 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2018 | 21 May 2018 | 001-12879 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Oct 2017 | 13 Oct 2017 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Aug 2017 | 15 Aug 2017 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jul 2017 | 17 Jul 2017 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2017 | 30 May 2017 | 000-19357 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 27 Apr 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Aug 2016 | 09 Aug 2016 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Apr 2016 | 25 Apr 2016 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Aug 2015 | 04 Aug 2015 | 000-19357 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Apr 2015 | 20 Apr 2015 | 001-12879 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Feb 2015 | 29 Jan 2015 | 000-19357 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Aug 2014 | 05 Aug 2014 | 000-19357 |