| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 4 | 29 Oct 2025 | 27 Oct 2025 | 000-21767 |
| 4 | Open Document | Open Filing | 4 | 09 Sep 2025 | 05 Sep 2025 | 000-21767 |
| 4 | Open Document | Open Filing | 4 | 11 Sep 2024 | 10 Sep 2024 | 000-21767 |
| 4 | Open Document | Open Filing | 4 | 09 Sep 2024 | 05 Sep 2024 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Nov 2023 | 13 Nov 2023 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Sep 2023 | 07 Sep 2023 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Sep 2023 | 01 Sep 2023 | 000-21767 |
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | 12 May 2023 | 31 Mar 2023 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Sep 2022 | 01 Sep 2022 | 000-21767 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 Nov 2021 | 19 Nov 2021 | 001-14180 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Sep 2021 | 02 Sep 2021 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Sep 2020 | 03 Sep 2020 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Sep 2019 | 04 Sep 2019 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Sep 2019 | 03 Sep 2019 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Aug 2019 | 14 Aug 2019 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jul 2019 | 15 Jul 2019 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Jun 2019 | 14 Jun 2019 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Sep 2018 | 06 Sep 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Sep 2018 | 04 Sep 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Aug 2018 | 01 Aug 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jul 2018 | 02 Jul 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Jun 2018 | 01 Jun 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2018 | 01 May 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Apr 2018 | 02 Apr 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2018 | 01 Mar 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jan 2018 | 02 Jan 2018 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Dec 2017 | 01 Dec 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Nov 2017 | 01 Nov 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Oct 2017 | 02 Oct 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Sep 2017 | 07 Sep 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Sep 2017 | 01 Sep 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Aug 2017 | 01 Aug 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jul 2017 | 05 Jul 2017 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Sep 2016 | 16 Sep 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Sep 2016 | 08 Sep 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Sep 2016 | 01 Sep 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Aug 2016 | 01 Aug 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jul 2016 | 01 Jul 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2016 | 01 Jun 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2016 | 02 May 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Apr 2016 | 01 Apr 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Mar 2016 | 01 Mar 2016 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Sep 2015 | 16 Sep 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Sep 2015 | 01 Sep 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2015 | 03 Aug 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jul 2015 | 01 Jul 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2015 | 01 Jun 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 May 2015 | 01 May 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Apr 2015 | 01 Apr 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Mar 2015 | 02 Mar 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Feb 2015 | 02 Feb 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jan 2015 | 02 Jan 2015 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Dec 2014 | 01 Dec 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Sep 2014 | 17 Sep 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Sep 2014 | 02 Sep 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Aug 2014 | 04 Aug 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jul 2014 | 01 Jul 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2014 | 02 Jun 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 May 2014 | 02 May 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Apr 2014 | 01 Apr 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Mar 2014 | 03 Mar 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Feb 2014 | 03 Feb 2014 | 000-21767 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jan 2014 | 03 Jan 2014 | 000-21767 |