| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jul 20, 2021 | Jul 19, 2021 | 001-08344 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Jul 20, 2021 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Jul 15, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 | Jun 7, 2021 | Jun 3, 2021 | 001-08344 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Jun 7, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2021 | May 19, 2021 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2021 | May 13, 2021 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 24, 2021 | Mar 22, 2021 | 001-08344 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Mar 24, 2021 | ||
| SC 13D/A | Open Document | Open Filing | SC 13D/A | Mar 18, 2021 | ||
| 4 | Open Document | Open Filing | FORM 4 | Nov 17, 2020 | Oct 2, 2020 | 001-08344 |
| SC 13D/A | Open Document | Open Filing | SC 13 D/A | Sep 2, 2020 | ||
| 4 | Open Document | Open Filing | FORM 4 | Aug 27, 2020 | Aug 25, 2020 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2020 | May 13, 2020 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 31, 2020 | Jan 29, 2020 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | May 17, 2019 | May 15, 2019 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 3, 2019 | Mar 28, 2019 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 1, 2019 | Jan 30, 2019 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | May 18, 2018 | May 16, 2018 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2018 | Mar 21, 2018 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Oct 17, 2017 | Oct 13, 2017 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | May 19, 2017 | May 17, 2017 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 10, 2017 | Apr 6, 2017 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 3, 2017 | Mar 30, 2017 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 27, 2017 | Jan 25, 2017 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Dec 30, 2016 | 001-08344 |
| 4 | Open Document | Data | Open Filing | FORM 4 | May 20, 2016 | May 18, 2016 | 001-08344 |
| 4 | Open Document | Data | Open Filing | FORM 4 | Apr 4, 2016 | Mar 31, 2016 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 29, 2016 | Jan 27, 2016 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2015 | May 20, 2015 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 6, 2015 | Apr 2, 2015 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 30, 2015 | Jan 28, 2015 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 29, 2015 | Jan 27, 2015 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Aug 27, 2014 | Aug 25, 2014 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2014 | May 21, 2014 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Apr 2, 2014 | Mar 31, 2014 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 6, 2014 | Feb 4, 2014 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 3, 2014 | Jan 30, 2014 | 001-08344 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 29, 2014 | Jan 27, 2014 | 001-08344 |