| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Mar 9, 2022 | Mar 7, 2022 | 001-40537 | |
| 4 | Open Document | Open Filing | Dec 16, 2021 | Dec 14, 2021 | 001-40537 | |
| 4 | Open Document | Open Filing | Jun 30, 2021 | May 6, 2021 | 001-40537 | |
| 3 | Open Document | Open Filing | Jun 24, 2021 | Jun 24, 2021 | 001-40537 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 9, 2018 | Mar 7, 2018 | 001-06639 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 7, 2018 | Mar 5, 2018 | 001-06639 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 7, 2017 | Mar 5, 2017 | 001-06639 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 7, 2017 | Mar 3, 2017 | 001-06639 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 7, 2016 | Mar 3, 2016 | 001-06639 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 9, 2015 | Mar 5, 2015 | 001-06639 |
| 4 | Open Document | Open Filing | FORM 4 | Mar 6, 2015 | Mar 4, 2015 | 001-06639 |
| 4 | Open Document | Open Filing | STOCK OPTION GRANT - 8/1/14 | Aug 8, 2014 | Aug 1, 2014 | 001-06639 |
| 4/A | Open Document | Open Filing | FORM 4/A - CORRECTION OF OPTION PRICE | Mar 24, 2014 | Mar 5, 2014 | 001-06639 |
| 4 | Open Document | Open Filing | Mar 7, 2014 | Mar 5, 2014 | 001-06639 |