| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| 8-K | Report | Data | FORM 8-K | Sep 11, 2024 | Sep 11, 2024 |
| 8-K | Report | Data | FORM 8-K | Jul 29, 2024 | Jul 25, 2024 |
| 8-K | Report | Data | FORM 8-K | Jun 21, 2024 | Jun 17, 2024 |
| 8-K | Report | Data | FORM 8-K | Jun 13, 2024 | Jun 13, 2024 |
| 8-K | Report | Data | FORM 8-K | Apr 26, 2024 | Apr 26, 2024 |
| 8-K | Report | Data | FORM 8-K | Dec 8, 2023 | Dec 8, 2023 |
| 8-K | Report | Data | FORM 8-K | Oct 2, 2023 | Oct 2, 2023 |
| 8-K | Report | Data | FORM 8-K | Sep 15, 2023 | Sep 14, 2023 |
| 8-K | Report | FORM 8-K | Jun 23, 2023 | Jun 23, 2023 |
| 8-K | Report | Data | FORM 8-K | Jun 14, 2023 | Jun 14, 2023 |
| 8-K | Report | Data | FORM 8-K | May 4, 2023 | May 4, 2023 |
| 8-K | Report | Data | FORM 8-K | Apr 27, 2023 | Apr 27, 2023 |
| 8-K | Report | Data | FORM 8-K | Apr 14, 2023 | Apr 11, 2023 |
| 8-K | Report | Data | FORM 8-K - ENTRY INTO JOINT VENTURE AGREEMENT | Jan 6, 2023 | Jan 6, 2023 |
| 8-K | Report | Data | FORM 8-K | Dec 7, 2022 | Dec 7, 2022 |
| 8-K | Report | Data | FORM 8-K | Dec 6, 2022 | Dec 6, 2022 |
| 8-K | Report | Data | FORM 8-K | Sep 7, 2022 | Sep 7, 2022 |
| 8-K | Report | FORM 8-K | Jul 1, 2022 | Jul 1, 2022 |
| 8-K | Report | Data | FORM 8-K | Jun 7, 2022 | Jun 7, 2022 |
| 8-K | Report | Data | FORM 8-K | Apr 19, 2022 | Apr 19, 2022 |
| 8-K | Report | Data | FORM 8-K | Feb 16, 2022 | Feb 14, 2022 |
| 8-K | Report | Data | FORM 8-K | Jan 7, 2022 | Jan 3, 2022 |
| 8-K | Report | Data | FORM 8-K | Dec 8, 2021 | Dec 8, 2021 |
| 8-K | Report | Data | FORM 8-K | Oct 4, 2021 | Oct 4, 2021 |
| 8-K | Report | Data | FORM 8-K | Sep 21, 2021 | Sep 17, 2021 |
| 8-K | Report | FORM 8-K | Sep 8, 2021 | Sep 8, 2021 |
| 8-K | Report | FORM 8-K | Jun 22, 2021 | Jun 22, 2021 |
| 8-K | Report | FORM 8-K | Jun 8, 2021 | Jun 8, 2021 |
| 8-K | Report | FORM 8-K | May 27, 2021 | May 27, 2021 |
| 8-K/A | Report | FORM 8-K/A | Apr 22, 2021 | Apr 22, 2021 |
| 8-K | Report | FORM 8-K | Apr 19, 2021 | Apr 19, 2021 |
| 8-K | Report | FORM 8-K | Apr 15, 2021 | Apr 15, 2021 |
| 8-K | Report | FORM 8-K | Dec 21, 2020 | Dec 21, 2020 |
| 8-K | Report | FORM 8-K | Sep 9, 2020 | Sep 9, 2020 |
| 8-K | Report | FORM 8-K | Jun 25, 2020 | Jun 24, 2020 |
| 8-K | Report | FORM 8-K | Jun 9, 2020 | Jun 9, 2020 |
| 8-K | Report | FORM 8-K | Apr 21, 2020 | Apr 21, 2020 |
| 8-K | Report | FORM 8-K | Dec 10, 2019 | Dec 10, 2019 |
| 8-K | Report | FORM 8-K | Sep 16, 2019 | Sep 15, 2019 |
| 8-K | Report | FORM 8-K | Sep 10, 2019 | Sep 10, 2019 |
| 8-K | Report | FORM 8-K | Jun 20, 2019 | Jun 20, 2019 |
| 8-K | Report | FORM 8-K | Jun 11, 2019 | Jun 11, 2019 |
| 8-K | Report | FORM 8-K | May 6, 2019 | May 6, 2019 |
| 8-K | Report | FORM 8-K | Apr 16, 2019 | Apr 16, 2019 |
| 8-K | Report | FORM 8-K | Mar 7, 2019 | Mar 7, 2019 |
| 8-K | Report | FORM 8-K | Jan 9, 2019 | Jan 8, 2019 |
| 8-K | Report | FORM 8-K | Dec 11, 2018 | Dec 11, 2018 |
| 8-K | Report | 8-K - CHANGE IN NEO | Oct 1, 2018 | Sep 28, 2018 |
| 8-K | Report | 8-K CREDIT AGREEMENT | Sep 24, 2018 | Sep 20, 2018 |
| 8-K | Report | 8-K Q2-18 EARNINGS RELEASE | Sep 11, 2018 | Sep 11, 2018 |
| 8-K | Report | 8-K EARNINGS RELEASE | Jun 12, 2018 | Jun 12, 2018 |
| 8-K | Report | 8-K SHAREHOLDER MEETING | Jun 6, 2018 | Jun 6, 2018 |
| 8-K | Report | 8-K BYLAWS | Feb 22, 2018 | Feb 21, 2018 |
| 8-K | Report | 8-K SUBMISSION OF VOTE | Jun 26, 2017 | Jun 22, 2017 |
| 8-K | Report | 8-K NAME CHANGE | Mar 20, 2017 | Mar 17, 2017 |
| 8-K | Report | 8-K DEPARTURES | Feb 3, 2017 | Jan 30, 2017 |
| 8-K | Report | 8-K DAVID MANSFIELD NAMED CEO | Nov 8, 2016 | Nov 8, 2016 |
| 8-K | Report | 8-K BMO 5TH AMENDMENT | Oct 27, 2016 | Oct 25, 2016 |
| 8-K/A | Report | 8-K/A ACQUISITION | Oct 27, 2016 | Feb 4, 2016 |
| 8-K | Report | 8-K SUBMISSION OF VOTE | Jun 30, 2016 | Jun 28, 2016 |
| 8-K | Report | 8-K CANADIAN ACQUISITION | Apr 6, 2016 | Feb 4, 2016 |
| 8-K | Report | 8-K BMO AMENDMENT AND EMPLOYMENT COMP AMENDMENT | Mar 2, 2016 | Feb 25, 2016 |
| 8-K | Report | 8-K DISPOSITION OF FILTRATION PRODUCTS | Feb 4, 2016 | Jan 29, 2016 |
| 8-K | Report | 8-K SUBMISSION OF VOTE | Jun 23, 2015 | Jun 18, 2015 |
| 8-K | Report | 8-K OTHER CLARIFICATION ON MEETING ATTENDANCE | Jun 11, 2015 | Jun 10, 2015 |
| 8-K | Report | 8-K | Apr 14, 2015 | Apr 9, 2015 |
| 8-K | Report | 8-K STOCK REPURCHASE PROGRAM | Feb 10, 2015 | Feb 5, 2015 |
| 8-K | Report | 8-K BMO AGREEMENT | Sep 25, 2014 | Sep 24, 2014 |
| 8-K | Report | 8-K | Jun 19, 2014 | Jun 17, 2014 |
| 8-K | Report | 8-K APPOINTMENT JEROME WALKER | Apr 15, 2014 | Apr 10, 2014 |
| 8-K | Report | 8-K | Mar 25, 2014 | Mar 19, 2014 |
| 8-K | Report | 8-K | Jul 3, 2013 | Jun 27, 2013 |
| 8-K | Report | 8-K | Jun 24, 2013 | Jun 20, 2013 |
| 8-K | Report | 8-K | Jun 17, 2013 | Jun 14, 2013 |
| 8-K | Report | 8-K | May 1, 2013 | Apr 25, 2013 |
| 8-K | Report | 8-K | Mar 20, 2013 | Mar 15, 2013 |
| 8-K | Report | 8-K | Feb 14, 2013 | Feb 13, 2013 |
| 8-K | Report | 8-K | Feb 4, 2013 | Jan 30, 2013 |
| 8-K | Report | 8-K | Jan 31, 2013 | Jan 24, 2013 |
| 8-K | Report | 8-K | Jan 17, 2013 | Jan 12, 2013 |
| 8-K | Report | 8-K | Dec 10, 2012 | Dec 5, 2012 |
| 8-K | Report | 8-K | Oct 31, 2012 | Oct 25, 2012 |
| 8-K | Report | 8-K SUCCESSION PLAN ANNOUNCED | Oct 15, 2012 | Oct 10, 2012 |
| 8-K | Report | 8K SUBMISSION OF VOTE | Jun 29, 2012 | Jun 28, 2012 |
| 8-K | Report | Jun 17, 2011 | Jun 15, 2011 | |
| 8-K | Report | Apr 18, 2011 | Apr 13, 2011 | |
| 8-K | Report | FORM 8K | Aug 3, 2010 | Aug 3, 2010 |
| 8-K | Report | Jun 28, 2010 | Jun 28, 2010 |