| SC 13G/A | 2008-02-13 | PRICE T ROWE ASSOCIATES INC /MD/ | LYDALL INC /DE/ | 1,020,000 | 6.1% | EDGAR |
| SC 13G/A | 2008-02-06 | DIMENSIONAL FUND ADVISORS INC | LYDALL INC /DE/ | 1,395,170 | 8.5% | EDGAR |
| SC 13G | 2008-02-05 | BARCLAYS GLOBAL INVESTORS NA /CA/ | LYDALL INC /DE/ | 826,168 | 5.0% | EDGAR |
| SC 13G/A | 2008-01-30 | ROYCE & ASSOCIATES LLC | LYDALL INC /DE/ | 938,800 | 5.7% | EDGAR |
| SC 13G | 2008-01-30 | GRACE & WHITE INC /NY | LYDALL INC /DE/ | 9 | 11.0% | EDGAR |
| SC 13G/A | 2007-02-14 | WELLINGTON MANAGEMENT CO LLP | LYDALL INC /DE/ | 382,515 | 2.4% | EDGAR |
| SC 13G | 2007-02-14 | REICH & TANG ASSET MANAGEMENT LP | LYDALL INC /DE/ | 974,000 | 6.0% | EDGAR |
| SC 13G/A | 2007-02-13 | PRICE T ROWE ASSOCIATES INC /MD/ | LYDALL INC /DE/ | 1,338,200 | 8.2% | EDGAR |
| SC 13G | 2007-02-13 | AXA FINANCIAL INC | LYDALL INC /DE/ | 831,030 | 5.1% | EDGAR |
| SC 13G/A | 2007-02-09 | GOLDMAN SACHS ASSET MANAGEMENT LP | LYDALL INC /DE/ | 374,616 | 2.3% | EDGAR |
| SC 13G/A | 2007-02-09 | DIMENSIONAL FUND ADVISORS INC | LYDALL INC /DE/ | 1,378,971 | 8.5% | EDGAR |
| SC 13G/A | 2007-02-02 | DIMENSIONAL FUND ADVISORS INC | LYDALL INC /DE/ | 1,378,971 | 8.5% | EDGAR |
| SC 13G/A | 2007-02-02 | GRACE & WHITE INC /NY | LYDALL INC /DE/ | 9 | 11.0% | EDGAR |
| SC 13G/A | 2007-01-29 | GRACE & WHITE INC /NY | LYDALL INC /DE/ | 9 | 11.0% | EDGAR |
| SC 13G/A | 2007-01-23 | ROYCE & ASSOCIATES LLC | LYDALL INC /DE/ | 1,015,900 | 6.3% | EDGAR |
| SC 13G/A | 2006-02-14 | WELLINGTON MANAGEMENT CO LLP | LYDALL INC /DE/ | 1,487,000 | 9.2% | EDGAR |
| SC 13G | 2006-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | LYDALL INC /DE/ | 1,481,600 | 9.1% | EDGAR |
| SC 13G/A | 2006-02-07 | GOLDMAN SACHS ASSET MANAGEMENT LP | LYDALL INC /DE/ | 1,497,511 | 9.3% | EDGAR |
| SC 13G/A | 2006-02-06 | DIMENSIONAL FUND ADVISORS INC | LYDALL INC /DE/ | 1,381,172 | 8.5% | EDGAR |
| SC 13G | 2006-01-31 | GRACE & WHITE INC /NY | LYDALL INC /DE/ | 9 | 11.0% | EDGAR |