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| Form | Report Date | Filing Date | Description |
|---|---|---|---|
| 8-K | 2026-09-28 | 2026-09-28 | 8-K |
| 8-K | 2026-09-28 | 2026-09-28 | 8-K |
| 8-K | 2026-09-03 | 2026-09-03 | 8-K |
| 8-K | 2026-08-14 | 2026-08-17 | 8-K |
| 10-Q | 2026-06-30 | 2026-08-04 | 10-Q |
| 8-K | 2026-08-04 | 2026-08-04 | 8-K |
| 8-K | 2026-06-11 | 2026-06-16 | 8-K |
| 8-K | 2026-06-11 | 2026-06-11 | 8-K |
| 8-K | 2026-05-19 | 2026-05-26 | 8-K |
| 8-K | 2026-05-05 | 2026-05-05 | 8-K |
| 10-Q | 2026-03-31 | 2026-05-05 | 10-Q |
| 8-K | 2026-03-08 | 2026-03-11 | 8-K |
| 10-K | 2025-12-31 | 2026-03-02 | 10-K |
| 8-K | 2026-02-26 | 2026-02-27 | 8-K |
| 8-K | 2026-02-03 | 2026-02-03 | 8-K |
| 8-K | 2026-01-05 | 2026-01-08 | 8-K |
| 8-K | 2026-01-05 | 2026-01-05 | 8-K |
| 8-K | 2025-12-19 | 2025-12-23 | 8-K |
| 8-K | 2025-12-19 | 2025-12-19 | 8-K |
| 8-K | 2025-12-08 | 2025-12-08 | 8-K |
| 10-Q | 2025-09-30 | 2025-11-04 | 10-Q |
| 8-K | 2025-11-04 | 2025-11-04 | 8-K |
| 8-K | 2025-10-31 | 2025-10-31 | 8-K |
| 8-K | 2025-10-06 | 2025-10-09 | 8-K |
| 8-K | 2025-08-06 | 2025-08-11 | 8-K |
| 8-K | 2025-07-29 | 2025-07-29 | 8-K |
| 10-Q | 2025-06-30 | 2025-07-29 | 10-Q |
| 8-K | 2025-05-21 | 2025-05-22 | 8-K |
| 8-K | 2025-05-01 | 2025-05-05 | 8-K |
| 10-Q | 2025-03-31 | 2025-05-01 | 10-Q |
| 8-K | 2025-05-01 | 2025-05-01 | 8-K |
| 10-K | 2024-12-31 | 2025-02-12 | 10-K |
| 8-K | 2025-02-04 | 2025-02-04 | 8-K |
| 8-K | 2024-12-02 | 2024-12-02 | 8-K |
| 10-Q | 2024-09-30 | 2024-10-29 | 10-Q |
| 8-K | 2024-10-29 | 2024-10-29 | 8-K |
| 8-K | 2024-09-26 | 2024-09-30 | 8-K |
| 8-K | 2024-09-03 | 2024-09-03 | 8-K |
| 10-Q | 2024-06-30 | 2024-07-30 | 10-Q |
| 8-K | 2024-07-30 | 2024-07-30 | 8-K |
| 8-K | 2024-07-19 | 2024-07-22 | 8-K |
| 8-K | 2024-06-03 | 2024-06-05 | 8-K |
| 8-K | 2024-05-23 | 2024-05-28 | 8-K |
| 8-K | 2024-05-13 | 2024-05-13 | 8-K |
| 8-K | 2024-05-06 | 2024-05-06 | 8-K |
| 8-K | 2024-05-06 | 2024-05-06 | 8-K |
| 8-K | 2024-04-30 | 2024-04-30 | 8-K |
| 10-Q | 2024-03-31 | 2024-04-30 | 10-Q |
| 10-K | 2023-12-31 | 2024-02-21 | 10-K |
| 8-K | 2024-02-20 | 2024-02-20 | 8-K |
| 8-K | 2024-02-20 | 2024-02-20 | 8-K |
| 8-K | 2023-11-27 | 2023-11-27 | 8-K |
| 8-K | 2023-10-31 | 2023-10-31 | 8-K |
| 10-Q | 2023-09-30 | 2023-10-31 | 10-Q |
| 8-K | 2023-10-04 | 2023-10-04 | 8-K |
| 8-K | 2023-09-08 | 2023-09-11 | FORM 8-K |
| 10-Q | 2023-06-30 | 2023-08-01 | 10-Q |
| 8-K | 2023-08-01 | 2023-08-01 | 8-K |
| 8-K | 2023-05-24 | 2023-05-24 | FORM 8-K |
| 8-K | 2023-05-01 | 2023-05-02 | FORM 8-K |
| 10-Q | 2023-03-31 | 2023-05-02 | 10-Q |
| 8-K | 2023-05-02 | 2023-05-02 | 8-K |
| 10-K | 2022-12-31 | 2023-02-09 | 10-K |
| 8-K | 2023-02-07 | 2023-02-07 | 8-K |
| 10-Q | 2022-09-30 | 2022-10-25 | 10-Q |
| 8-K | 2022-10-25 | 2022-10-25 | 8-K |
| 10-Q | 2022-06-30 | 2022-07-26 | 10-Q |
| 8-K | 2022-07-26 | 2022-07-26 | 8-K |
| 8-K | 2022-05-24 | 2022-05-25 | 8-K |
| 10-Q | 2022-03-31 | 2022-04-26 | 10-Q |
| 8-K | 2022-04-26 | 2022-04-26 | 8-K |
| 8-K | 2022-02-22 | 2022-02-23 | FORM 8-K |
| 10-K | 2021-12-31 | 2022-02-22 | 10-K |
| 8-K | 2022-02-16 | 2022-02-17 | 8-K |
| 8-K | 2021-11-19 | 2021-11-19 | FORM 8-K |
| 8-K | 2021-11-09 | 2021-11-09 | FORM 8-K |
| 8-K | 2021-11-08 | 2021-11-08 | FORM 8-K |
| 8-K | 2021-11-01 | 2021-11-02 | 8-K |
| 8-K | 2021-10-26 | 2021-10-26 | 8-K |
| 10-Q | 2021-09-30 | 2021-10-26 | 10-Q |
| 8-K | 2021-10-12 | 2021-10-13 | FORM 8-K |
| 8-K | 2021-10-06 | 2021-10-06 | FORM 8-K |
| 8-K | 2021-10-04 | 2021-10-04 | FORM 8-K |
| 8-K | 2021-07-27 | 2021-07-27 | 8-K |
| 10-Q | 2021-06-30 | 2021-07-27 | 10-Q |
| 8-K | 2021-07-22 | 2021-07-27 | FORM 8-K |
| 8-K | 2021-05-26 | 2021-05-27 | FORM 8-K |
| 8-K | 2021-05-21 | 2021-05-24 | FORM 8-K |
| 8-K | 2021-05-19 | 2021-05-20 | FORM 8-K |
| 8-K | 2021-05-12 | 2021-05-14 | FORM 8-K |
| 10-Q | 2021-03-31 | 2021-04-27 | 10-Q |
| 8-K | 2021-04-27 | 2021-04-27 | 8-K |
| 8-K | 2021-04-01 | 2021-04-01 | FORM 8-K |
| 8-K | 2021-03-08 | 2021-03-08 | FORM 8-K |
| 8-K | 2021-03-01 | 2021-03-02 | FORM 8-K |
| 8-K | 2021-03-01 | 2021-03-01 | 8-K |
| 8-K | 2021-03-01 | 2021-03-01 | 8-K |
| 8-K | 2021-02-24 | 2021-02-24 | 8-K |
| 8-K | 2021-02-19 | 2021-02-19 | FORM 8-K |
| 8-K | 2021-02-16 | 2021-02-17 | FORM 8-K |
| 10-K | 2020-12-31 | 2021-02-16 | 10-K |
| 8-K | 2021-02-16 | 2021-02-16 | FORM 8-K |
| 8-K | 2021-02-02 | 2021-02-02 | 8-K |
| 8-K | 2021-01-14 | 2021-01-20 | FORM 8-K |
| 8-K | 2020-10-15 | 2020-10-20 | 8-K |
| 10-Q | 2020-09-30 | 2020-10-20 | 10-Q |
| 8-K | 2020-08-28 | 2020-08-31 | FORM 8-K |
| 8-K | 2020-08-10 | 2020-08-10 | FORM 8-K |
| 10-Q | 2020-06-30 | 2020-07-22 | 10-Q |
| 8-K | 2020-07-21 | 2020-07-21 | 8-K |
| 8-K | 2020-05-20 | 2020-05-21 | 8-K |
| 8-K | 2020-04-21 | 2020-04-21 | 8-K |
| 10-Q | 2020-03-31 | 2020-04-21 | 10-Q |
| 8-K | 2020-03-06 | 2020-03-06 | FORM 8-K |
| 8-K | 2020-02-27 | 2020-02-27 | 8-K |
| 10-K | 2019-12-31 | 2020-02-11 | 10-K |
| 8-K | 2020-01-23 | 2020-01-29 | 8-K |
| 8-K | 2020-01-23 | 2020-01-28 | 8-K |
| 8-K | 2020-01-28 | 2020-01-28 | 8-K |
| 8-K | 2019-12-18 | 2019-12-18 | 8-K |
| 10-Q | 2019-09-30 | 2019-10-22 | 10-Q |
| 8-K | 2019-10-22 | 2019-10-22 | 8-K |
| 8-K | 2019-09-26 | 2019-09-26 | 8-K |
| 8-K | 2019-08-08 | 2019-08-08 | 8-K |
| 8-K | 2019-07-23 | 2019-07-23 | 8-K |
| 10-Q | 2019-06-30 | 2019-07-23 | 10-Q |
| 8-K | 2019-06-25 | 2019-06-25 | 8-K |
| 8-K | 2019-05-22 | 2019-05-23 | 8-K |
| 10-Q | 2019-03-31 | 2019-04-23 | 10-Q |
| 8-K | 2019-04-23 | 2019-04-23 | 8-K |
| 10-K | 2018-12-31 | 2019-02-13 | 10-K |
| 8-K | 2019-01-29 | 2019-01-29 | 8-K |
| 8-K | 2019-01-14 | 2019-01-14 | 8-K |
| 10-Q | 2018-09-30 | 2018-10-23 | 10-Q |
| 8-K | 2018-10-23 | 2018-10-23 | 8-K |
| 8-K | 2018-08-31 | 2018-09-05 | 8-K |
| 8-K | 2018-08-15 | 2018-08-15 | 8-K |
| 8-K | 2018-08-06 | 2018-08-06 | 8-K |
| 8-K | 2018-07-26 | 2018-07-26 | 8-K |
| 8-K | 2018-07-24 | 2018-07-24 | 8-K |
| 10-Q | 2018-06-30 | 2018-07-24 | 10-Q |
| 8-K | 2018-05-24 | 2018-05-24 | 8-K |
| 10-Q | 2018-03-31 | 2018-04-25 | 10-Q |
| 8-K | 2018-04-24 | 2018-04-24 | 8-K |
| 8-K | 2018-02-22 | 2018-02-22 | 8-K |
| 10-K | 2017-12-31 | 2018-02-07 | 10-K |
| 8-K | 2018-02-06 | 2018-02-06 | 8-K |
| 8-K | 2018-01-01 | 2018-01-02 | FORM 8-K |
| 8-K | 2017-12-04 | 2017-12-04 | 8-K |
| 8-K | 2017-11-28 | 2017-11-29 | 8-K |
| 10-Q | 2017-09-30 | 2017-10-25 | 10-Q |
| 8-K | 2017-10-23 | 2017-10-24 | 8-K |
| 8-K | 2017-10-24 | 2017-10-24 | 8-K |
| 10-Q | 2017-06-30 | 2017-07-26 | 10-Q |
| 8-K | 2017-07-25 | 2017-07-25 | 8-K |
| 8-K | 2017-05-26 | 2017-05-26 | 8-K |
| 10-Q | 2017-03-31 | 2017-04-26 | 10-Q |
| 8-K | 2017-04-25 | 2017-04-25 | 8-K |
| 8-K | 2017-03-15 | 2017-03-15 | 8-K |
| 10-K | 2016-12-31 | 2017-02-08 | 10-K |
| 8-K | 2017-02-07 | 2017-02-07 | 8-K |
| 8-K | 2017-01-11 | 2017-01-11 | 8-K |
| 8-K | 2017-01-05 | 2017-01-05 | 8-K |
| 10-Q | 2016-09-30 | 2016-10-26 | 10-Q |
| 8-K | 2016-10-25 | 2016-10-25 | 8-K |
| 8-K | 2016-08-08 | 2016-08-11 | 8-K |
| 10-Q | 2016-06-30 | 2016-07-27 | 10-Q |
| 8-K | 2016-07-26 | 2016-07-26 | 8-K |
| 8-K | 2016-05-26 | 2016-05-26 | 8-K |
| 10-Q | 2016-03-31 | 2016-04-28 | 10-Q |
| 8-K | 2016-04-26 | 2016-04-26 | 8-K |
| 10-K | 2015-12-31 | 2016-02-12 | 10-K |
| 8-K | 2016-02-09 | 2016-02-09 | 8-K |
| 8-K | 2015-11-19 | 2015-11-19 | 8-K |
| 10-Q | 2015-09-30 | 2015-11-09 | 10-Q |
| 8-K | 2015-10-22 | 2015-10-22 | 8-K |
| 10-Q | 2015-06-30 | 2015-07-23 | 10-Q |
| 8-K | 2015-07-23 | 2015-07-23 | 8-K |
| 8-K | 2015-05-20 | 2015-05-27 | 8-K |
| 10-Q | 2015-03-31 | 2015-04-23 | 10-Q |
| 8-K | 2015-04-23 | 2015-04-23 | 8-K |
| 8-K | 2015-02-27 | 2015-03-05 | 2015.03.05 GPHC FORM 8-K |
| 10-K | 2014-12-31 | 2015-02-05 | 10-K |
| 8-K | 2015-02-05 | 2015-02-05 | 8-K |
| 8-K | 2014-11-06 | 2014-11-06 | 8-K |
| 8-K | 2014-10-23 | 2014-10-29 | 8-K |
| 8-K | 2014-10-21 | 2014-10-21 | 8-K |
| 10-Q | 2014-09-30 | 2014-10-21 | 10-Q |
| 8-K | 2014-10-02 | 2014-10-07 | 8-K |
| 8-K | 2014-10-03 | 2014-10-03 | 8-K |
| 8-K | 2014-09-17 | 2014-09-19 | 2014.09.19 GPHC 8-K |
| 8-K | 2014-08-08 | 2014-08-12 | 8-K |
| 10-Q | 2014-06-30 | 2014-07-24 | 10-Q |
| 8-K | 2014-07-24 | 2014-07-24 | 8-K |
| 8-K | 2014-06-30 | 2014-07-02 | 8-K |
| 8-K | 2014-06-03 | 2014-06-04 | 8-K |
| 8-K | 2014-05-29 | 2014-06-02 | 8-K |
| 8-K | 2014-05-21 | 2014-05-23 | 8-K |
| 8-K | 2014-05-19 | 2014-05-22 | FORM 8-K |
| 8-K | 2014-04-24 | 2014-04-24 | 8-K |
| 10-Q | 2014-03-31 | 2014-04-24 | 10-Q |
| 8-K | 2014-02-26 | 2014-03-03 | FORM8K20140303 |
| 8-K | 2014-02-11 | 2014-02-18 | 8-K |
| 10-K | 2013-12-31 | 2014-02-06 | 10-K |
| 8-K | 2014-02-06 | 2014-02-06 | 8-K |
| 8-K | 2013-11-21 | 2013-11-25 | 8-K |
| 8-K | 2013-11-19 | 2013-11-25 | 8-K |
| 8-K | 2013-10-30 | 2013-10-30 | 8-K |
| 10-Q | 2013-09-30 | 2013-10-30 | 10-Q |
| 8-K | 2013-09-13 | 2013-09-18 | FORM 8-K |
| 8-K | 2013-08-07 | 2013-08-13 | 8-K |
| 10-Q | 2013-06-30 | 2013-07-25 | 10-Q |
| 8-K | 2013-07-25 | 2013-07-25 | 8-K |
| 8-K | 2013-07-22 | 2013-07-23 | 8-K |
| 8-K | 2013-05-30 | 2013-06-05 | FORM 8-K |
| 8-K | 2013-05-22 | 2013-05-23 | 8-K |
| 10-Q | 2013-03-31 | 2013-04-25 | 10-Q |
| 8-K | 2013-04-25 | 2013-04-25 | 8-K |
| 8-K | 2013-04-02 | 2013-04-02 | 8-K |
| 8-K | 2013-03-21 | 2013-03-27 | 8-K |
| 8-K | 2013-02-07 | 2013-02-07 | 8-K |
| 10-K | 2012-12-31 | 2013-02-07 | 10-K |
| 8-K | 2013-01-02 | 2013-01-03 | 8-K |
| 8-K | 2013-01-03 | 2013-01-03 | 8-K |
| 8-K | 2012-12-12 | 2012-12-18 | FORM 8-K |
| 8-K | 2012-11-28 | 2012-11-30 | 8-K |
| 8-K | 2012-11-16 | 2012-11-20 | 8-K |
| 8-K | 2012-10-25 | 2012-10-25 | 8-K |
| 10-Q | 2012-09-30 | 2012-10-25 | 10-Q |
| 10-Q | 2012-06-30 | 2012-07-26 | 10-Q |
| 8-K | 2012-07-25 | 2012-07-26 | 8-K |
| 8-K | 2012-07-16 | 2012-07-17 | - |
| 8-K | 2012-05-18 | 2012-05-24 | - |
| 8-K | 2012-04-26 | 2012-04-26 | Q1 2012 PRESS RELEASE |
| 10-Q | 2012-03-31 | 2012-04-26 | FORM 10-Q |
| 8-K | 2012-04-01 | 2012-04-05 | - |
| 8-K | 2012-03-16 | 2012-03-22 | - |
| 8-K | 2012-02-17 | 2012-02-23 | CAMPBELL DIRECTOR APPOINTMENT |
| 10-K | 2011-12-31 | 2012-02-23 | - |
| 8-K | 2012-02-23 | 2012-02-23 | - |
| 8-K | 2011-12-09 | 2011-12-15 | - |
| 8-K | 2011-11-18 | 2011-11-18 | 2011.11.18 FORM 8-K |