| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 04 Jun 2024 | 16 May 2024 | 000-21318 | |
| 144 | Open Document | Open Filing | 30 May 2024 | |||
| 4 | Open Document | Open Filing | 4 | 04 Jan 2024 | 02 Jan 2024 | 000-06253 |
| 4 | Open Document | Open Filing | 08 Nov 2023 | 06 Nov 2023 | 000-21318 | |
| 144 | Open Document | Open Filing | 06 Nov 2023 | |||
| 4 | Open Document | Open Filing | 04 Oct 2023 | 02 Oct 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jul 2023 | 03 Jul 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 23 May 2023 | 19 May 2023 | 000-21318 | |
| 4 | Open Document | Open Filing | 05 May 2023 | 03 May 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 04 May 2023 | 02 May 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Jan 2023 | 03 Jan 2023 | 000-06253 | |
| 4 | Open Document | Open Filing | 16 Nov 2022 | 14 Nov 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Oct 2022 | 03 Oct 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jul 2022 | 01 Jul 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 18 May 2022 | 17 May 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 17 May 2022 | 13 May 2022 | 000-21318 | |
| 4 | Open Document | Open Filing | 05 May 2022 | 03 May 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Apr 2022 | 01 Apr 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Feb 2022 | 01 Feb 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Jan 2022 | 03 Jan 2022 | 000-06253 | |
| 4 | Open Document | Open Filing | 10 Dec 2021 | 08 Dec 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Oct 2021 | 01 Oct 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jul 2021 | 01 Jul 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 02 Jun 2021 | 28 May 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 18 May 2021 | 14 May 2021 | 000-21318 | |
| 4 | Open Document | Open Filing | 06 Jan 2021 | 04 Jan 2021 | 000-06253 | |
| 4 | Open Document | Open Filing | 29 Oct 2020 | 27 Oct 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 05 Oct 2020 | 01 Oct 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 07 Aug 2020 | 05 Aug 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 02 Jul 2020 | 01 Jul 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 19 May 2020 | 15 May 2020 | 000-21318 | |
| 4 | Open Document | Open Filing | 05 May 2020 | 01 May 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 06 Jan 2020 | 02 Jan 2020 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Oct 2019 | 01 Oct 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | FORM 4 | 20 Aug 2019 | 16 Aug 2019 | 000-21318 |
| 4 | Open Document | Open Filing | 03 Jul 2019 | 01 Jul 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 May 2019 | 08 May 2019 | 000-21318 |
| 4 | Open Document | Open Filing | 03 May 2019 | 01 May 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | FORM 4 | 14 Feb 2019 | 13 Feb 2019 | 000-21318 |
| 4 | Open Document | Open Filing | 04 Jan 2019 | 02 Jan 2019 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Oct 2018 | 01 Oct 2018 | 000-06253 | |
| 4 | Open Document | Open Filing | 03 Jul 2018 | 02 Jul 2018 | 000-06253 | |
| 4 | Open Document | Open Filing | FORM 4 | 10 May 2018 | 09 May 2018 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2018 | 07 May 2018 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 May 2018 | 03 May 2018 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2018 | 01 May 2018 | 000-06253 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 13 Feb 2018 | 31 Dec 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 Oct 2017 | 02 Oct 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Jul 2017 | 03 Jul 2017 | 000-06253 |
| 4 | Open Document | Open Filing | FORM 4 | 12 May 2017 | 10 May 2017 | 000-21318 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 03 May 2017 | 01 May 2017 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Apr 2017 | 03 Apr 2017 | 000-06253 |
| 4 | Open Document | Open Filing | FORM 4 | 14 Feb 2017 | 13 Feb 2017 | 000-21318 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Jan 2017 | 24 Jan 2017 | 000-06253 |
| 4 | Open Document | Open Filing | FORM 4 | 28 Nov 2016 | 18 Nov 2016 | 000-21318 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 Jun 2016 | 23 May 2016 | 000-06253 |
| 4 | Open Document | Open Filing | FORM 4 | 06 May 2016 | 04 May 2016 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | 18 Feb 2016 | 16 Feb 2016 | 000-21318 |
| 5 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 10 Feb 2016 | 31 Dec 2015 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 05 Feb 2016 | 28 Dec 2015 | 000-06253 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 27 Jul 2015 | 27 Jul 2015 | 000-06253 |
| 4 | Open Document | Open Filing | 22 Jul 2015 | 21 Jul 2015 | 000-06253 | |
| 4 | Open Document | Open Filing | FORM 4 | 07 May 2015 | 06 May 2015 | 000-21318 |
| 3 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 01 May 2015 | 24 Apr 2015 | 000-06253 |
| 4 | Open Document | Open Filing | FORM 4 | 03 Nov 2014 | 30 Oct 2014 | 000-21318 |
| 4 | Open Document | Open Filing | FORM 4 | 09 May 2014 | 07 May 2014 | 000-21318 |