| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 8, 2022 | Mar 4, 2022 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2022 | Mar 1, 2022 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 13, 2021 | Sep 10, 2021 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 10, 2021 | Sep 9, 2021 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 1, 2021 | Feb 25, 2021 | 000-13358 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | Feb 22, 2021 | May 12, 2020 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 13, 2020 | May 12, 2020 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 2, 2020 | Feb 27, 2020 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 8, 2019 | Mar 8, 2019 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 21, 2019 | Feb 19, 2019 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2018 | Feb 21, 2018 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 22, 2017 | May 19, 2017 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 19, 2017 | May 18, 2017 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2017 | Feb 21, 2017 | 000-13358 |
| 4 | Open Document | Open Filing | Nov 10, 2016 | Jan 29, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 5, 2016 | Aug 3, 2016 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 22, 2016 | Feb 18, 2016 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 27, 2015 | Jul 24, 2015 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 6, 2015 | May 4, 2015 | 000-13358 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2015 | Feb 19, 2015 | 000-13358 |
| 4 | Open Document | Open Filing | Dec 3, 2014 | Nov 28, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | Sep 3, 2014 | Aug 29, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | Jun 3, 2014 | May 30, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | May 6, 2014 | May 2, 2014 | 000-13358 | |
| 4 | Open Document | Open Filing | Mar 4, 2014 | Feb 19, 2014 | 000-13358 |