| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Jan 2022 | 25 Jan 2022 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 May 2021 | 18 May 2021 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 May 2021 | 12 May 2021 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Nov 2020 | 05 Nov 2020 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 May 2020 | 14 May 2020 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 May 2020 | 12 May 2020 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 May 2019 | 20 May 2019 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 May 2019 | 14 May 2019 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Aug 2018 | 10 Aug 2018 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 May 2018 | 15 May 2018 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 May 2017 | 16 May 2017 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Sep 2016 | 07 Sep 2016 | 000-29101 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jun 2016 | 15 Jun 2016 | 000-29101 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 May 2016 | 17 May 2016 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 May 2016 | 05 May 2016 | 000-10961 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2016 | 04 Jan 2016 | 000-29101 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Nov 2015 | 16 Nov 2015 | 000-10961 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 18 Nov 2015 | 16 Nov 2015 | 000-10961 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Jul 2015 | 08 Jul 2015 | 000-11634 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jun 2015 | 17 Jun 2015 | 000-29101 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Jan 2015 | 02 Jan 2015 | 000-29101 |
| 4 | Open Document | Open Filing | C. SLACIK ELECTION GRANT 2014 | 11 Jun 2014 | 09 Jun 2014 | 000-11634 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2014 | 10 Jun 2014 | 000-29101 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2014 | 02 Jan 2014 | 000-29101 |