SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report December 6, 1999 SPARTECH CORPORATION (Exact name of registrant as specified in its charter) DELAWARE (State or other jurisdiction of incorporation) 1-5911 43-0761773 (Commission File Number) (IRS Employer Identification No.) 120 South Central Avenue, Suite 1700, Clayton, Missouri 63105 (Address of principal executive offices) (Zip Code) (314) 721-4242 Registrant's Telephone Number, Including Area Code SPARTECH CORPORATION FORM 8-K Item 5. Other Events Effective September 9, 1999, the Board of Directors of the registrant approved certain amendments to the registrant's Restricted Stock Option Plan, originally adopted in 1991. The amendments to the Plan permit certain transfers of options issued pursuant to the Plan, and expand in certain respects the types of consideration which may be paid to exercise the options and pay withholding taxes due upon exercise. Item 7. Financial Statements and Exhibits Exhibits 4.1 Spartech Corporation Restricted Stock Option Plan, as amended and restated September 9, 1999. 2 SIGNATURES Pursuant to the requirements of the Securities Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. SPARTECH CORPORATION Date December 3, 1999 By /S/ Jeffrey D. Fisher Jeffrey D. Fisher Vice President and General Counsel 3