POLYCAST <PTCC> REDUCES SPARTECH <SPTN> STAKE Polycast Technology Corp told the Securities and Exchange Commission it sold off 119,800 of its Spartech Corp common shares, reducing its stake in Spartech to 30,000 shares or 1.2 pct of the total outstanding. Polycast said it made the sales April 6-8 in the over-the-counter market. It gave no reason for the sales.