| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Mar 2023 | 23 Mar 2023 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2023 | 22 Feb 2023 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Feb 2023 | 19 Feb 2023 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Feb 2023 | 15 Feb 2023 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Dec 2022 | 09 Dec 2022 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Sep 2022 | 22 Sep 2022 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Sep 2022 | 01 Sep 2022 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Jun 2022 | 13 Jun 2022 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Mar 2022 | 23 Mar 2022 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2022 | 21 Feb 2022 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 15 Dec 2021 | 13 Dec 2021 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Sep 2021 | 24 Sep 2021 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 03 Sep 2021 | 02 Sep 2021 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Sep 2021 | 01 Sep 2021 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 16 Jun 2021 | 14 Jun 2021 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Feb 2021 | 18 Feb 2021 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 28 Oct 2020 | 27 Oct 2020 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 02 Sep 2020 | 01 Sep 2020 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Mar 2020 | 05 Mar 2020 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Feb 2020 | 19 Feb 2020 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 09 Dec 2019 | 05 Dec 2019 | 001-12933 |
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | 10 Sep 2019 | 01 Sep 2019 | 001-12933 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 12 Jun 2019 | 11 Jun 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 06 Jun 2019 | 04 Jun 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Apr 2019 | 03 Apr 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Feb 2019 | 25 Feb 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Feb 2019 | 24 Feb 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Feb 2019 | 22 Feb 2019 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Sep 2018 | 20 Sep 2018 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 30 Jul 2018 | 27 Jul 2018 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 13 Jun 2018 | 11 Jun 2018 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 26 Feb 2018 | 22 Feb 2018 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 20 Feb 2018 | 18 Feb 2018 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Oct 2017 | 03 Oct 2017 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 27 Feb 2017 | 24 Feb 2017 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2017 | 22 Feb 2017 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 23 Feb 2017 | 22 Feb 2017 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 21 Feb 2017 | 18 Feb 2017 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 25 Feb 2016 | 24 Feb 2016 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2016 | 18 Feb 2016 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 10 Nov 2015 | 02 Nov 2015 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 04 Aug 2015 | 03 Aug 2015 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 17 Mar 2015 | 17 Mar 2015 | 000-21810 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 19 Feb 2015 | 18 Feb 2015 | 000-21810 |
| 4 | Open Document | Open Filing | CASH PAID OPTION EXERCISE | 05 Sep 2014 | 03 Sep 2014 | 000-21810 |
| 4 | Open Document | Open Filing | STOCK APPRECIATION RIGHT GRANT | 21 Feb 2014 | 19 Feb 2014 | 000-21810 |