| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 17 Feb 2022 | 15 Feb 2022 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 09 Dec 2021 | 07 Dec 2021 | 001-15811 |
| 4/A | Open Document | Open Filing | FORM 4/A | 25 Feb 2021 | 16 Feb 2021 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Feb 2021 | 16 Feb 2021 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Dec 2020 | 08 Dec 2020 | 001-15811 |
| 4/A | Open Document | Open Filing | FORM 4/A | 04 Mar 2020 | 18 Feb 2020 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 20 Feb 2020 | 18 Feb 2020 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Dec 2019 | 03 Dec 2019 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Feb 2019 | 19 Feb 2019 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Dec 2018 | 04 Dec 2018 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2018 | 21 Feb 2018 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Jan 2018 | 16 Jan 2018 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Dec 2017 | 05 Dec 2017 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Aug 2017 | 02 Aug 2017 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Feb 2017 | 21 Feb 2017 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 15 Feb 2017 | 13 Feb 2017 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 17 May 2016 | 13 May 2016 | 001-15811 |
| 4/A | Open Document | Open Filing | FORM 4/A | 01 Apr 2016 | 22 Feb 2016 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 25 Feb 2016 | 24 Feb 2016 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 24 Feb 2016 | 22 Feb 2016 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jan 2016 | 04 Jan 2016 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Dec 2015 | 01 Dec 2015 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jul 2015 | 01 Jul 2015 | 001-15811 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 13 Apr 2015 | 23 Feb 2015 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Feb 2015 | 23 Feb 2015 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Feb 2015 | 13 Feb 2015 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Dec 2014 | 02 Dec 2014 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Feb 2014 | 19 Feb 2014 | 001-15811 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Feb 2014 | 06 Feb 2014 | 001-15811 |