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 March 5, 1999 SPARTECH CORPORATION (Exact name of registrant as specified in its charter) DELAWARE 1-5911 43-0761773 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 7733 Forsyth Blvd., Suite 1450, Clayton, Missouri 63105 (Address of principal executive offices) (Zip Code) Registrant's telephone number: (314) 721-4242 SPARTECH CORPORATION FORM 8-K Item 5. Other Events On March 5, 1999, Spartech Corporation ("the Company" or "Spartech") issued $50 million of 6.5% convertible subordinated debentures to Spartech Capital Trust, a Delaware trust controlled by the Company. The Company used the proceeds to pay down our unsecured bank credit facility. The debentures are the sole assets of the Trust and eliminate in consolidation. The Trust purchased the debentures with the proceeds of a $50 million private placement of 6.5% convertible preferred securities of the Trust having an aggregate liquidation preference of $50 million and guaranteed by Spartech. The debentures mature and are payable, along with the Trust preferred securities on March 1, 2014, if they have not been previously redeemed or converted. The debentures are convertible along with the Trust preferred securities, at the option of the preferred security holders, into shares of our common stock at a conversion price equivalent to $30.55 per share of common stock, for a total of 1,636,661 shares. In addition, the debentures are redeemable along with the Trust preferred securities, at Spartech's option on or after March 1, 2002, at a price equal to 104.56% of the principal amount plus accrued interest, declining annually to a price equal to the principal amount plus accrued interest by March 1, 2009. 2 Item 7. Financial Statements and Exhibits Exhibits 99 Spartech press release dated March 5, 1999. 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 March 18, 1999 By /S/ Randy C. Martin Randy C. Martin Vice President-Finance and Chief Financial Officer