| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2022 | May 17, 2022 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 7, 2022 | Apr 5, 2022 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 28, 2022 | Mar 24, 2022 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 17, 2021 | Nov 15, 2021 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 26, 2021 | Mar 24, 2021 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2020 | May 15, 2020 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 15, 2020 | Apr 13, 2020 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 16, 2019 | May 14, 2019 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 14, 2019 | Mar 12, 2019 | 001-13445 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 27, 2018 | Feb 23, 2018 | 001-13445 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Feb 20, 2018 | Feb 19, 2018 | 001-13445 |