| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | Apr 17, 2024 | Apr 15, 2024 | 001-06631 |
| 4 | Open Document | Open Filing | CHANGES IN BENEFICIAL OWNERSHIP | Feb 8, 2024 | Feb 7, 2024 | 001-06631 |
| 144 | Open Document | Open Filing | Feb 7, 2024 | |||
| 4 | Open Document | Open Filing | CHANGES IN BENEFICIAL OWNERSHIP | Jan 31, 2024 | Jan 29, 2024 | 001-06631 |
| 4 | Open Document | Open Filing | CHANGES IN BENEFICIAL OWNERSHIP | Jan 30, 2024 | Jan 26, 2024 | 001-06631 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | Jan 25, 2024 | Jan 23, 2024 | 001-06631 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Jun 12, 2023 | Jun 2, 2023 | 001-06631 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Sep 26, 2019 | Sep 25, 2019 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 18, 2019 | Jun 15, 2019 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 8, 2019 | Mar 6, 2019 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 20, 2019 | Feb 20, 2019 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 19, 2019 | Feb 14, 2019 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Sep 25, 2018 | Sep 21, 2018 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 19, 2018 | Jun 15, 2018 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 7, 2018 | Mar 5, 2018 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 2, 2018 | Feb 28, 2018 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 21, 2018 | Feb 16, 2018 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 16, 2018 | Feb 14, 2018 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 19, 2017 | Jun 15, 2017 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 22, 2017 | Feb 17, 2017 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 16, 2017 | Feb 14, 2017 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2017 | Dec 30, 2016 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 21, 2016 | Jun 17, 2016 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Jun 17, 2016 | Feb 10, 2016 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Feb 12, 2016 | Feb 10, 2016 | 001-33031 |
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2016 | Dec 30, 2015 | 001-33031 |
| 3 | Open Document | Open Filing | FORM 3 | Jul 8, 2015 | Jun 9, 2015 | 001-33031 |