| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 12 Dec 2025 | 10 Dec 2025 | 000-26251 | |
| 4 | Open Document | Open Filing | 28 Oct 2025 | 26 Oct 2025 | 000-26251 | |
| 4 | Open Document | Open Filing | 17 Jun 2025 | 15 Jun 2025 | 000-26251 | |
| 4 | Open Document | Open Filing | 10 Jun 2025 | 06 Jun 2025 | 000-26251 | |
| 4 | Open Document | Open Filing | 06 Jun 2025 | 04 Jun 2025 | 000-26251 | |
| 4 | Open Document | Open Filing | 15 May 2025 | 14 May 2025 | 000-26251 | |
| 4/A | Open Document | Open Filing | 08 May 2025 | 06 May 2025 | 000-26251 | |
| 4 | Open Document | Open Filing | 07 May 2025 | 05 May 2025 | 000-26251 | |
| 4 | Open Document | Open Filing | 4 | 29 Oct 2024 | 26 Oct 2024 | 000-26251 |
| 4 | Open Document | Open Filing | 4 | 18 Jun 2024 | 15 Jun 2024 | 000-26251 |
| 4 | Open Document | Open Filing | 4 | 10 Jun 2024 | 06 Jun 2024 | 000-26251 |
| 4 | Open Document | Open Filing | 4 | 05 Jun 2024 | 26 Oct 2023 | 000-26251 |
| 4 | Open Document | Open Filing | 4 | 03 Aug 2023 | 01 Aug 2023 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Jun 2023 | 15 Jun 2023 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2023 | 03 Jun 2023 | 000-26251 |
| 4 | Open Document | Open Filing | 4 | 17 May 2023 | 15 May 2023 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Dec 2022 | 09 Dec 2022 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Oct 2022 | 25 Oct 2022 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Aug 2022 | 09 Aug 2022 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Aug 2022 | 01 Aug 2022 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jun 2022 | 03 Jun 2022 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Dec 2021 | 09 Dec 2021 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Dec 2021 | 02 Dec 2021 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Aug 2021 | 01 Aug 2021 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Jun 2021 | 03 Jun 2021 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Dec 2020 | 02 Dec 2020 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Aug 2020 | 05 Aug 2020 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2020 | 01 Aug 2020 | 000-26251 |
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | 24 Jun 2020 | 01 Jun 2020 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2020 | 03 Jun 2020 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Jun 2020 | 01 Jun 2020 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Sep 2019 | 04 Sep 2019 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Aug 2019 | 01 Aug 2019 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 01 Aug 2019 | 30 Jul 2019 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2019 | 03 Jun 2019 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 18 Dec 2018 | 14 Dec 2018 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Nov 2018 | 13 Nov 2018 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Sep 2018 | 04 Sep 2018 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Aug 2018 | 01 Aug 2018 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Jul 2018 | 25 Jul 2018 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Jun 2018 | 01 Jun 2018 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Dec 2017 | 07 Dec 2017 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 14 Nov 2017 | 13 Nov 2017 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Sep 2017 | 04 Sep 2017 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Aug 2017 | 26 Aug 2017 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Jul 2017 | 25 Jul 2017 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 05 Jun 2017 | 01 Jun 2017 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Dec 2016 | 09 Dec 2016 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Nov 2016 | 13 Nov 2016 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 07 Sep 2016 | 04 Sep 2016 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 29 Aug 2016 | 26 Aug 2016 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Aug 2016 | 21 Aug 2016 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Jun 2016 | 01 Jun 2016 | 000-26251 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 12 Feb 2016 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Dec 2015 | 07 Dec 2015 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Nov 2015 | 13 Nov 2015 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Sep 2015 | 22 Sep 2015 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Sep 2015 | 07 Sep 2015 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Aug 2015 | 26 Aug 2015 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Aug 2015 | 21 Aug 2015 | 000-26251 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 17 Feb 2015 | ||
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Nov 2014 | 13 Nov 2014 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 08 Sep 2014 | 07 Sep 2014 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Aug 2014 | 26 Aug 2014 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Aug 2014 | 21 Aug 2014 | 000-26251 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 11 Jun 2014 | 09 Jun 2014 | 000-26251 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 14 Feb 2014 |