| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| 8-K | Report | Data | 8-K | Aug 1, 2024 | Aug 1, 2024 |
| 8-K | Report | Data | 8-K | Jun 12, 2024 | Jun 12, 2024 |
| 8-K | Report | Data | 8-K | May 9, 2024 | May 8, 2024 |
| 8-K/A | Report | Data | 8-K/A | May 9, 2024 | Feb 22, 2024 |
| 8-K | Report | Data | 8-K | May 6, 2024 | May 3, 2024 |
| 8-K | Report | Data | 8-K | May 2, 2024 | May 2, 2024 |
| 8-K | Report | Data | 8-K | Feb 28, 2024 | Feb 22, 2024 |
| 8-K | Report | Data | 8-K | Feb 28, 2024 | Feb 28, 2024 |
| 8-K | Report | Data | 8-K | Dec 18, 2023 | Dec 12, 2023 |
| 8-K | Report | Data | 8-K | Nov 28, 2023 | Nov 28, 2023 |
| 8-K | Report | Data | 8-K | Nov 2, 2023 | Nov 2, 2023 |
| 8-K | Report | Data | 8-K | Aug 3, 2023 | Aug 3, 2023 |
| 8-K | Report | Data | 8-K | May 26, 2023 | May 23, 2023 |
| 8-K | Report | Data | 8-K | May 11, 2023 | May 10, 2023 |
| 8-K | Report | Data | 8-K | May 4, 2023 | May 4, 2023 |
| 8-K | Report | Data | 8-K | Apr 11, 2023 | Apr 5, 2023 |
| 8-K | Report | Data | 8-K | Mar 6, 2023 | Mar 2, 2023 |
| 8-K | Report | Data | 8-K | Feb 28, 2023 | Feb 28, 2023 |
| 8-K | Report | Data | 8-K | Dec 22, 2022 | Dec 16, 2022 |
| 8-K | Report | Data | 8-K | Nov 25, 2022 | Nov 21, 2022 |
| 8-K | Report | Data | 8-K | Nov 15, 2022 | Nov 14, 2022 |
| 8-K | Report | Data | 8-K | Nov 7, 2022 | Nov 3, 2022 |
| 8-K | Report | Data | 8-K | Nov 2, 2022 | Oct 27, 2022 |
| 8-K | Report | Data | 8-K | Nov 1, 2022 | Nov 1, 2022 |
| 8-K | Report | Data | 8-K | Aug 5, 2022 | Aug 3, 2022 |
| 8-K | Report | Data | 8-K | Aug 1, 2022 | Jul 27, 2022 |
| 8-K/A | Report | Data | 8-K/A | Aug 1, 2022 | Apr 25, 2022 |
| 8-K | Report | Data | 8-K | Jul 29, 2022 | Jul 29, 2022 |
| 8-K | Report | Data | 8-K | May 31, 2022 | May 26, 2022 |
| 8-K | Report | Data | 8-K | Apr 29, 2022 | Apr 25, 2022 |
| 8-K | Report | Data | 8-K | Apr 28, 2022 | Apr 28, 2022 |
| 8-K | Report | Data | 8-K | Feb 25, 2022 | Feb 25, 2022 |
| 8-K | Report | Data | 8-K | Nov 23, 2021 | Nov 18, 2021 |
| 8-K | Report | Data | FORM 8-K | Nov 16, 2021 | Dec 31, 2020 |
| 8-K | Report | Data | 8-K | Nov 9, 2021 | Nov 9, 2021 |
| 8-K | Report | Data | 8-K | Sep 14, 2021 | Sep 14, 2021 |
| 8-K | Report | Data | 8-K | Aug 5, 2021 | Aug 5, 2021 |
| 8-K/A | Report | Data | 8-K/A | Aug 4, 2021 | Mar 22, 2021 |
| 8-K | Report | Data | 8-K | Aug 3, 2021 | Aug 1, 2021 |
| 8-K | Report | Data | 8-K | Jul 23, 2021 | Jul 22, 2021 |
| 8-K | Report | Data | 8-K | Jul 15, 2021 | Jul 12, 2021 |
| 8-K | Report | Data | 8-K | Jun 30, 2021 | Jun 24, 2021 |
| 8-K | Report | Data | 8-K | Jun 11, 2021 | Jun 9, 2021 |
| 8-K | Report | Data | 8-K | May 6, 2021 | May 6, 2021 |
| 8-K | Report | Data | 8-K | Apr 30, 2021 | Apr 29, 2021 |
| 8-K | Report | Data | 8-K | Apr 29, 2021 | Apr 28, 2021 |
| 8-K | Report | Data | FORM 8-K | Apr 26, 2021 | Apr 26, 2021 |
| 8-K | Report | Data | 8-K | Apr 8, 2021 | Apr 8, 2021 |
| 8-K | Report | Data | 8-K | Mar 23, 2021 | Mar 22, 2021 |
| 8-K | Report | Data | 8-K | Mar 16, 2021 | Mar 10, 2021 |
| 8-K/A | Report | Data | 8-K/A | Mar 16, 2021 | Mar 9, 2021 |
| 8-K | Report | Data | 8-K | Mar 9, 2021 | Mar 9, 2021 |
| 8-K | Report | Data | 8-K | Mar 4, 2021 | Feb 28, 2021 |
| 8-K | Report | Data | 8-K | Dec 18, 2020 | Dec 14, 2020 |
| 8-K | Report | Data | 8-K | Nov 10, 2020 | Nov 10, 2020 |
| 8-K | Report | Data | 8-K | Oct 30, 2020 | Oct 30, 2020 |
| 8-K | Report | Data | FORM 8-K | Oct 16, 2020 | Oct 15, 2020 |
| 8-K | Report | Data | 8-K | Jul 30, 2020 | Jul 30, 2020 |
| 8-K | Report | Data | 8-K | Jul 28, 2020 | Jul 22, 2020 |
| 8-K | Report | Data | 8-K | Jun 1, 2020 | May 28, 2020 |
| 8-K | Report | Data | 8-K | May 28, 2020 | May 28, 2020 |
| 8-K | Report | Data | 8-K | May 5, 2020 | May 5, 2020 |
| 8-K | Report | Data | 8-K | May 5, 2020 | Apr 30, 2020 |
| 8-K/A | Report | Data | 8-K/A | Apr 29, 2020 | Feb 29, 2020 |
| 8-K | Report | Data | 8-K | Mar 26, 2020 | Mar 20, 2020 |
| 8-K | Report | Data | 8-K | Mar 12, 2020 | Mar 12, 2020 |
| 8-K | Report | Data | 8-K | Mar 5, 2020 | Feb 29, 2020 |
| 8-K | Report | Data | FORM 8-K | Feb 27, 2020 | Feb 27, 2020 |
| 8-K | Report | Data | 8-K | Feb 20, 2020 | Feb 20, 2020 |
| 8-K | Report | Data | FORM 8-K | Feb 13, 2020 | Feb 7, 2020 |
| 8-K | Report | Data | FORM 8-K | Jan 27, 2020 | Jan 27, 2020 |
| 8-K | Report | Data | FORM 8-K | Dec 3, 2019 | Nov 26, 2019 |
| 8-K | Report | Data | FORM 8-K | Nov 21, 2019 | Nov 15, 2019 |
| 8-K | Report | Data | FORM 8-K | Nov 1, 2019 | Oct 28, 2019 |
| 8-K | Report | Data | 8-K | Oct 31, 2019 | Oct 31, 2019 |
| 8-K | Report | 8-K | Aug 8, 2019 | Aug 8, 2019 |
| 8-K | Report | 8-K | May 16, 2019 | May 16, 2019 |
| 8-K | Report | PQ GROUP HOLDINGS INC. FORM 8-K | May 9, 2019 | May 9, 2019 |
| 8-K | Report | 8-K | May 6, 2019 | May 2, 2019 |
| 8-K | Report | 8-K | Mar 22, 2019 | Mar 22, 2019 |
| 8-K | Report | PQ GROUP HOLDINGS INC. FORM 8-K | Feb 21, 2019 | Feb 21, 2019 |
| 8-K | Report | 8-K | Dec 26, 2018 | Dec 21, 2018 |
| 8-K | Report | PQ GROUP HOLDINGS INC. FORM 8-K | Nov 6, 2018 | Nov 6, 2018 |
| 8-K | Report | 8-K | Aug 9, 2018 | Aug 6, 2018 |
| 8-K | Report | PQ GROUP HOLDINGS INC. FORM 8-K | Aug 9, 2018 | Aug 9, 2018 |
| 8-K | Report | PQ GROUP HOLDINGS INC. FORM 8-K | May 10, 2018 | May 10, 2018 |
| 8-K | Report | 8-K | May 8, 2018 | May 4, 2018 |
| 8-K | Report | FORM 8-K | Mar 22, 2018 | Mar 19, 2018 |
| 8-K | Report | PQ GROUP HOLDINGS INC. FORM 8-K | Mar 21, 2018 | Mar 21, 2018 |
| 8-K | Report | 8-K | Feb 9, 2018 | Feb 8, 2018 |
| 8-K | Report | 8-K | Dec 13, 2017 | Dec 11, 2017 |
| 8-K | Report | 8-K | Dec 4, 2017 | Nov 29, 2017 |
| 8-K | Report | PQ GROUP HOLDINGS INC. | Nov 13, 2017 | Nov 13, 2017 |