| Form type | Sec Links | Description | Filing date | Reporting date |
|---|---|---|---|---|
| SC 13G/A | Report | NONE | Oct 8, 2021 | |
| SC 13G | Report | Sep 24, 2021 | ||
| SC 13G/A | Report | SEC SCHEDULE 13G | Feb 12, 2021 | |
| SC 13G/A | Report | NONE | Feb 11, 2021 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 10, 2021 | |
| SC 13G/A | Report | Jan 26, 2021 | ||
| SC 13G/A | Report | Feb 14, 2020 | ||
| SC 13G/A | Report | CHAMPLAIN 13G TICKER LDL | Feb 13, 2020 | |
| SC 13G | Report | NONE | Feb 13, 2020 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 12, 2020 | |
| SC 13G | Report | SCHEDULE 13G | Feb 11, 2020 | |
| SC 13G/A | Report | Feb 4, 2020 | ||
| SC 13G/A | Report | Feb 14, 2019 | ||
| SC 13G/A | Report | CHAMPLAIN 13G TICKER LDL | Feb 13, 2019 | |
| SC 13G/A | Report | Feb 11, 2019 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 8, 2019 | |
| SC 13G/A | Report | Jan 31, 2019 | ||
| SC 13G/A | Report | CHAMPLAIN 13G TICKER LDL | Feb 21, 2018 | |
| SC 13G/A | Report | Feb 14, 2018 | ||
| SC 13G/A | Report | CHAMPLAIN 13G TICKER LDL | Feb 13, 2018 | |
| SC 13G/A | Report | Feb 9, 2018 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 9, 2018 | |
| SC 13G/A | Report | Jan 19, 2018 | ||
| SC 13G/A | Report | CHAMPLAIN 13G/A TICKER LDL | Feb 14, 2017 | |
| SC 13G | Report | Feb 10, 2017 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 9, 2017 | |
| SC 13G | Report | Feb 7, 2017 | ||
| SC 13G/A | Report | Jan 12, 2017 | ||
| SC 13G/A | Report | Dec 9, 2016 | ||
| SC 13G/A | Report | CHAMPLAIN 13G/A TICKER LDL | Mar 17, 2016 | |
| SC 13G | Report | CHAMPLAIN 13G TICKER LDL | Feb 11, 2016 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 9, 2016 | |
| SC 13G/A | Report | LDL AS OF 12/31/2015 | Feb 9, 2016 | |
| SC 13G/A | Report | Jan 26, 2016 | ||
| SC 13G/A | Report | LDL AS OF 12/31/2014 | Feb 10, 2015 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 5, 2015 | |
| SC 13G/A | Report | Jan 26, 2015 | ||
| SC 13G/A | Report | Jun 6, 2014 | ||
| SC 13G/A | Report | Feb 13, 2014 | ||
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 10, 2014 | |
| SC 13G/A | Report | LDL AS OF 12/31/2013 | Feb 10, 2014 | |
| SC 13G/A | Report | Jan 29, 2014 | ||
| SC 13G/A | Report | Feb 14, 2013 | ||
| SC 13G/A | Report | LDL AS OF 12/31/12 | Feb 13, 2013 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 11, 2013 | |
| SC 13G/A | Report | Feb 5, 2013 | ||
| SC 13G/A | Report | Jan 30, 2013 | ||
| SC 13G/A | Report | LYDALL, INC. | Feb 14, 2012 | |
| SC 13G/A | Report | SCHEDULE 13G/A | Feb 14, 2012 | |
| SC 13G/A | Report | Feb 13, 2012 | ||
| SC 13G/A | Report | LDL AS OF 12/31/11 | Feb 9, 2012 | |
| SC 13G/A | Report | Jan 18, 2012 | ||
| SC 13G/A | Report | SCHEDULE 13G | Feb 11, 2011 | |
| SC 13G/A | Report | LDL AS OF 12/31/10 | Feb 10, 2011 | |
| SC 13G | Report | Feb 7, 2011 | ||
| SC 13G/A | Report | Jan 14, 2011 | ||
| SC 13G/A | Report | Jan 14, 2011 | ||
| SC 13G/A | Report | Nov 15, 2010 | ||
| SC 13G | Report | Jul 19, 2010 | ||
| SC 13G/A | Report | GRACE & WHITE, INC 13G/A LDL 2/28/10 | Mar 2, 2010 | |
| SC 13G/A | Report | LDL AS OF 12/31/2009 | Feb 12, 2010 | |
| SC 13G | Report | Feb 9, 2010 | ||
| SC 13G/A | Report | SCHEDULE 13G | Feb 8, 2010 | |
| SC 13G/A | Report | GRACE & WHITE, INC. 13G/A LDL 12/31/09 | Feb 1, 2010 | |
| SC 13G/A | Report | Jan 25, 2010 |