| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 03 May 2024 | 01 May 2024 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Aug 2023 | 10 Aug 2023 | 000-19319 |
| 144 | Open Document | Open Filing | 10 Aug 2023 | |||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 May 2023 | 01 May 2023 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 May 2022 | 01 May 2022 | 000-19319 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Nov 2021 | 19 Nov 2021 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2021 | 01 May 2021 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 - | 02 Feb 2021 | 29 Jan 2021 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 Oct 2020 | 12 Oct 2020 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2020 | 01 Jun 2020 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 - | 24 Jan 2020 | 22 Jan 2020 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Nov 2019 | 31 Oct 2019 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2019 | 01 Jun 2019 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 - | 29 Jan 2019 | 25 Jan 2019 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2018 | 01 Jun 2018 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 May 2018 | 15 May 2018 | 001-37693 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Mar 2018 | 13 Mar 2018 | 001-37693 |
| 4 | Open Document | Open Filing | FORM 4 - | 05 Mar 2018 | 01 Mar 2018 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2017 | 01 Jun 2017 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2017 | 30 May 2017 | 001-37693 |
| 4 | Open Document | Open Filing | FORM 4 - | 14 Mar 2017 | 02 Mar 2017 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2016 | 01 Jun 2016 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 - | 07 Mar 2016 | 03 Mar 2016 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2016 | 10 Feb 2016 | 001-37693 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 10 Feb 2016 | 10 Feb 2016 | 001-37693 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2015 | 01 Jun 2015 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 May 2015 | 19 May 2015 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Apr 2015 | 27 Apr 2015 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 - | 27 Apr 2015 | 24 Apr 2015 | 000-30319 |
| 4/A | Open Document | Open Filing | FORM 4/A - | 08 Apr 2015 | 08 Jan 2015 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 - | 09 Jan 2015 | 08 Jan 2015 | 001-36065 |
| 4 | Open Document | Open Filing | 4 | 03 Nov 2014 | 30 Oct 2014 | 000-30319 |
| 3 | Open Document | Open Filing | 3 | 03 Nov 2014 | 30 Oct 2014 | 000-30319 |
| 4 | Open Document | Open Filing | FORM 4 - | 16 Jul 2014 | 14 Jul 2014 | 001-36065 |
| 3 | Open Document | Open Filing | FORM 3 - | 16 Jul 2014 | 14 Jul 2014 | 001-36065 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2014 | 01 Jun 2014 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2013 | 01 Jun 2013 | 000-19319 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2012 | 01 Jun 2012 | 000-19319 |