| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 20 Dec 2024 | 18 Dec 2024 | 000-27517 |
| 4 | Open Document | Open Filing | 4 | 02 Apr 2024 | 31 Mar 2024 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Oct 2023 | 03 Oct 2023 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Apr 2023 | 21 Apr 2023 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Apr 2022 | 31 Mar 2022 | 000-27517 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 16 Feb 2021 | ||
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 11 Feb 2021 | 31 Dec 2020 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Nov 2020 | 05 Nov 2020 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Mar 2020 | 16 Mar 2020 | 000-27517 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 02 Jan 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Aug 2019 | 08 Aug 2019 | 000-27517 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 01 Mar 2019 | ||
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 01 Mar 2019 | 22 Mar 2018 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Mar 2019 | 22 Mar 2018 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Nov 2018 | 30 Oct 2018 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Mar 2018 | 22 Mar 2018 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Nov 2016 | 01 Nov 2016 | 000-27517 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jul 2016 | 01 Jul 2016 | 000-27517 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 16 Feb 2016 | 31 Dec 2016 | 000-27517 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 16 Feb 2016 | ||
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 19 Oct 2015 | 31 Dec 2013 | 000-27517 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 14 Feb 2014 |