X0304 4 2011-11-04 0 0001050550 VOLTERRA SEMICONDUCTOR CORP VLTR 0001294497 Staszak Jeffrey C/O VOLTERRA SEMICONDUCTOR CORPORATION 47467 FREMONT BLVD. FREMONT CA 94538 1 1 0 0 President, CEO Common Stock 2011-11-04 4 S 0 10000 25.00 D 244500 I Held in Trust Common Stock 10895 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 4, 2011. The sum of the amount of securtities beneficially owned following the reported transactions is corrected to reduce the aggregate number of shares by 12,500 and to correct the parties holding such shares as a result of a record error. Held by the Staszak Family Living Trust, of which the reporting person is a co-trustee. /s/David Oh, by Power of Attorney 2011-11-08