X0306 4 2012-07-24 0000945436 MEMC ELECTRONIC MATERIALS INC WFR 0001550421 Chinnasami Vijayan S. C/O MEMC ELECTRONIC MATERIALS, INC. P.O. BOX 8 ST. PETERS, MO 63376 0 1 0 0 SVP Solar Materials Employee Stock Option (Right to Buy) 1.76 2012-07-24 4 A 0 120000 0 A 2022-07-24 Common Stock 120000 120000 D The option to purchase 120,000 shares of common stock was awarded on July 24, 2012 under the MEMC 2010 Equity Incentive Plan in a transaction exempt under Rule 16b-3. The option is a performance based option that will vest, if at all, in 33% increments if MEMC's stock achieves certain target market prices. The option expires on the tenth anniversary of the grant date, provided that if the target market prices are not achieved by the fifth anniversary of the grant date, the option will be cancelled. /s/ Vijayan S. Chinnasami 2012-07-26