X0202 4 2007-04-25 0 0000945436 MEMC ELECTRONIC MATERIALS INC WFR 0001204255 STEVENS WILLIAM E C/O MEMC ELECTRONIC MATERIALS, INC. P.O. BOX 8 ST. PETERS MO 63376 1 0 0 0 Restricted Stock Units 2007-04-25 4 A 0 4500 0 A Common Stock 4500 4500 D Each restricted stock unit represents a contingent right to receive one share of MEMC common stock. The restricted stock units were awarded on April 25, 2007 under the MEMC 2001 Equity Incentive Plan in a transaction exempt under Rule 16b-3. The restricted stock units vest in two equal installments on April 25, 2008 and April 25, 2009. Vested shares will be delivered to the reporting person within 30 days of the cessation of the reporting person's services on MEMC's Board of Directors. /s/ Bradley D. Kohn, Attorney-in-Fact 2007-04-27