| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 13 Mar 2025 | 12 Mar 2025 | 000-16759 | |
| 4 | Open Document | Open Filing | 15 May 2023 | 12 May 2023 | 000-16759 | |
| 4 | Open Document | Open Filing | 08 May 2023 | 05 May 2023 | 000-16759 | |
| 4 | Open Document | Open Filing | 15 Dec 2022 | 14 Dec 2022 | 000-16759 | |
| 4 | Open Document | Open Filing | 08 Dec 2022 | 08 Dec 2022 | 000-16759 | |
| 4 | Open Document | Open Filing | FORM 4 | 19 Jan 2022 | 19 Jan 2022 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Sep 2020 | 23 Sep 2020 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Sep 2020 | 18 Sep 2020 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Mar 2020 | 10 Mar 2020 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 30 May 2019 | 28 May 2019 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Nov 2017 | 08 Nov 2017 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Sep 2017 | 14 Sep 2017 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Aug 2017 | 11 Aug 2017 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Jul 2017 | 28 Jul 2017 | 000-16759 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Mar 2017 | 22 Mar 2017 | 000-16759 |
| 4 | Open Document | Open Filing | MAIN DOCUMENT DESCRIPTION | 06 Aug 2012 | 02 Aug 2012 | 000-16759 |