| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 18 Aug 2023 | 17 Aug 2023 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 | 11 May 2023 | 10 May 2023 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 May 2023 | 27 Apr 2023 | 001-36847 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2022 | 11 May 2022 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2022 | 28 Apr 2022 | 001-36847 |
| 4 | Open Document | Open Filing | FORM 4 | 24 May 2021 | 20 May 2021 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2021 | 30 Apr 2021 | 001-36847 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Mar 2021 | 15 Mar 2021 | 000-22490 |
| 3 | Open Document | Open Filing | FORM 3 | 17 Mar 2021 | 15 Mar 2021 | 000-22490 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 May 2020 | 30 Apr 2020 | 001-36847 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 May 2019 | 02 May 2019 | 001-36847 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Sep 2018 | 10 Sep 2018 | 001-36847 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 11 Sep 2018 | 10 Sep 2018 | 001-36847 |