| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | 02 May 2022 | 28 Apr 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Jan 2022 | 04 Jan 2022 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Dec 2021 | 01 Dec 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Nov 2021 | 03 Nov 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Nov 2021 | 01 Nov 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Oct 2021 | 01 Oct 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Sep 2021 | 01 Sep 2021 | 000-20388 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Aug 2021 | 02 Aug 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Jul 2021 | 01 Jul 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 21 Jun 2021 | 17 Jun 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Jun 2021 | 10 Jun 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Jun 2021 | 01 Jun 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 04 May 2021 | 03 May 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Apr 2021 | 22 Apr 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 05 Apr 2021 | 01 Apr 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Mar 2021 | 01 Mar 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Feb 2021 | 09 Feb 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Feb 2021 | 01 Feb 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Jan 2021 | 04 Jan 2021 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 11 Dec 2020 | 10 Dec 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 08 Dec 2020 | 04 Dec 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 02 Dec 2020 | 01 Dec 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Nov 2020 | 17 Nov 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 10 Nov 2020 | 06 Nov 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Nov 2020 | 03 Nov 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Nov 2020 | 02 Nov 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 26 Oct 2020 | 22 Oct 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Aug 2020 | 10 Aug 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Apr 2020 | 23 Apr 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 07 Feb 2020 | 06 Feb 2020 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 23 Dec 2019 | 19 Dec 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 12 Dec 2019 | 11 Dec 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 30 Apr 2019 | 26 Apr 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 17 Apr 2019 | 16 Apr 2019 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 27 Feb 2019 | 25 Feb 2019 | 000-20388 |
| 5 | Open Document | Open Filing | FORM 5 | 06 Feb 2019 | 29 Dec 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 06 Sep 2018 | 04 Sep 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 04 Sep 2018 | 31 Aug 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 01 May 2018 | 27 Apr 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 | 19 Jan 2018 | 17 Jan 2018 | 000-20388 |
| 3 | Open Document | Open Filing | FORM 3 | 19 Jan 2018 | 17 Jan 2018 | 000-20388 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Jan 2018 | 17 Jan 2018 | 000-26124 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 30 Aug 2017 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2017 | 05 Jun 2017 | 000-26124 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Aug 2016 | 26 Aug 2016 | 000-26124 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Aug 2015 | 28 Aug 2015 | 000-26124 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Aug 2014 | 28 Aug 2014 | 000-26124 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Feb 2014 | 28 Feb 2014 | 000-26124 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Feb 2014 | 11 Feb 2014 | 000-26124 |