| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2023 | 18 May 2023 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2022 | 02 Jun 2022 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 24 May 2021 | 20 May 2021 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2020 | 21 May 2020 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 May 2019 | 16 May 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 May 2018 | 18 May 2018 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2017 | 19 May 2017 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 May 2016 | 26 May 2016 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 May 2015 | 28 May 2015 | 000-21810 |
| 4 | Open Document | Open Filing | RESTRICTED STOCK GRANT | 08 May 2014 | 07 May 2014 | 000-21810 |