X0303 4 2009-12-07 0000060977 LYDALL INC /DE/ LDL 0001307284 LONGE KEVIN T C/O LYDALL, INC. ONE COLONIAL ROAD, P.O. BOX 151 MANCHESTER CT 06045-0151 0 1 0 0 Pres, Lydall Filtration/Separ Common Stock 2009-12-07 4 F 0 397 5.65 D 27653 D Common Stock 2009-12-07 4 F 0 529 5.65 D 27124 D Common Stock 2009-12-07 4 F 0 331 5.65 D 26942 D In conjunction with the vesting on December 7, 2009 of 1,500 shares of restricted stock from the restricted stock award granted on December 7, 2006, 397 shares of common stock were surrendered to satisfy tax obligations of the reporting person. In conjunction with the vesting on December 7, 2009 of 2,000 shares of restricted stock from the restricted stock award granted on December 3, 2007, 529 shares of common stock were surrendered to satisfy tax obligations of the reporting person. In conjunction with the vesting on December 7, 2009 of 1,250 shares of restricted stock from the restricted stock award granted on December 9, 2008, 331 shares of common stock were surrendered to satisfy tax obligations of the reporting person. Includes 149 shares acquired by the reporting person under the Issuer's Employee Stock Purchase Plan since the last Form 4 was filed on August 26, 2009. Paul G. Igoe, Attorney-in-fact for Kevin T. Longe 2009-12-08