LIVERMORE, Calif. — October 23, 2013 — FormFactor, Inc. (Nasdaq: FORM) today announced it will accelerate its third quarter earnings announcement and conference call. The earnings announcement will be released at approximately 5:00 a.m. PDT on Thursday, October 24. A conference call to discuss the third quarter results and fourth quarter financial guidance will be held tomorrow, October 24, 2013 at 5:30 a.m. PDT, or 8:30 a.m. EDT. The public is invited to listen to a live webcast of FormFactor’s conference call on the Investors section of the company’s website at www.formfactor.com. An audio replay of the conference call will also be made available approximately two hours after the conclusion of the call. The audio replay will remain available until October 26 at 9:00 p.m. PDT, and can be accessed by dialing (855) 859- 2056 (domestic) or (404) 537-3406 (international) and entering confirmation code 72494882.

The call referenced above will take the place of the conference call originally scheduled for Wednesday, October 30, 2013 at 1:30 p.m. PDT, or 4:30 p.m. EDT.