X0303 4 2010-10-25 0000060977 LYDALL INC /DE/ LDL 0001410837 BARNHART DALE G C/O LYDALL, INC. ONE COLONIAL ROAD, P.O. BOX 151 MANCHESTER CT 06045-0151 1 1 0 0 President & CEO Common Stock 2010-10-25 4 F 0 1568 7.75 D 159563 D In conjunction with the vesting on October 25, 2010 of 5,000 shares of restricted stock from the restricted stock award granted on October 24, 2007, 1,568 shares of common stock were surrendered to satisfy tax obligations of the reporting person. Includes: (i) 17,500 unvested shares subject to time-based restricted stock awards; (ii) 124,000 unvested shares subject to a performance-based restricted stock award; and (iii) 68 shares acquired by the reporting person under the Issuer's Employee Stock Purchase Plan since the filing of the last Form 4 by the reporting person on December 11, 2009. Paul G. Igoe Attorney-in-fact, for Dale G. Barnhart 2010-10-26