| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 Jan 2023 | 20 Jan 2023 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Dec 2021 | 01 Dec 2021 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Dec 2020 | 17 Dec 2020 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Mar 2020 | 18 Mar 2020 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Mar 2020 | 05 Mar 2020 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Oct 2019 | 27 Sep 2019 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2019 | 11 Jun 2019 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jan 2019 | 31 Dec 2018 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jan 2019 | 04 Dec 2018 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jul 2017 | 30 Jun 2017 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Nov 2016 | 25 Nov 2016 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2016 | 02 May 2016 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Nov 2015 | 12 Nov 2015 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Mar 2015 | 17 Mar 2015 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Jan 2015 | 12 Jan 2015 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Mar 2014 | 24 Mar 2014 | 000-15946 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jan 2014 | 30 Dec 2013 | 000-15946 |