X0305 4/A 2012-03-14 2012-03-16 0 0001090061 OMNOVA SOLUTIONS INC OMN 0001240443 ROTHWELL ALLAN R 175 GHENT ROAD FAIRLAWN OH 44333-3300 1 0 0 0 Deferred Shares 2012-03-14 4 A 0 9381 0.00 A Common Stock 9381 20642 D Deferred share awarded under the OMNOVA Solutions Inc. Second Amended and Restated 1999 Equity and Performance Incentive Plan. The Deferred Shares comprise a portion of each director's annual retainer for serving on the Board of Directors. A Deferred Share award is the grant of the right to receive a specified number of OMNOVA Solutions common shares upon termination of the deferral period. Deferred shares are convertible 1-for-1 into OMNOVA Solutions common stock and will vest, the deferral period will terminate and the shares will be issued upon the later of one year following the date of grant and the director's termination of service on the Board. On a Form 4 filed on March 16, 2012, the number of derivative securities beneficially owned following the reported transaction was incorrectly reported as 30,023. The correct number of derivative securities beneficially owned following the reported transaction is 20,642 as reflected in this amendment. Kristine C. Syrvalin, Attorney-in-fact for Allan R. Rothwell 2012-05-31