X0202 4 2008-01-23 0000945436 MEMC ELECTRONIC MATERIALS INC WFR 0001360839 HANNAH KEN C/O MEMC ELECTRONIC MATERIALS, INC. P.O. BOX 8 ST. PETERS, MO 63376 0 1 0 0 Sr. VP, CFO Common Stock 2008-01-23 4 M 0 2500 A 16932 D Restricted Stock Units 0 2008-01-23 4 M 0 2500 0 D Common Stock 2500 7500 D Price is not applicable to acquisitions resulting from conversion of restricted stock units. On January 24, 2007, 10,000 restricted stock units were awarded under the MEMC 2001 Equity Incentive Plan in a transaction exempt under Rule 16b-3. Each restricted stock unit represents a contingent right to receive one share of MEMC common stock. Of these 10,000 restricted stock units, up to 5,000 were subject to forfeiture depending on pre-established company earnings targets for 2007. On January 23, 2008, the Committee determined that the earnings targets had been met, and that none of the 5,000 restricted stock units subject to forfeiture would be forfeited. Pursuant to the vesting schedule established on the date of the award, 2,500 units (25%) vested on January 24, 2008. The remaining restricted stock units vest in 25% increments on January 24, 2009, January 24, 2010 and January 24, 2011. /s/ Kenneth H. Hannah 2008-01-25