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Reporting person undertakes to provide upon request by the SEC staff or a security holder of the Issuer, full information regarding the number of shares sold at each separate price."}],"balance_after":1000,"source":{"system":"sec-edgar","filing":"0001039399-18-000032","document":"wf-form4_152640794446142.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1039399/000103939918000032/wf-form4_152640794446142.xml","form_type":"4"}},{"id":4291474,"issuer":{"id":3670,"kind":"organization","name":"FORMFACTOR INC","symbol":"FORM"},"owners":[{"id":10158,"kind":"person","name":"STEVEN-WAISS KELLEY","position":1,"cik":"0001498143","reported_name":"STEVEN-WAISS KELLEY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-06-06T22:55:34.000Z","date":"2017-05-26","kind":"grant","acquired":true,"shares":9000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Restricted Stock Units Vest and become exercisable in 12 equal monthly installments with the vesting dates beginning on June 26, 2017 and ending on May 26, 2018. Settlements of vested units into common stock will occur on the earlier of May 26, 2018 and the date the reporting person ceases to provide service to the Issuer, or thereafter, on the first market trading day in an open trading window under Issuer's insider trading policy if the applicable date is not a market trading day in an open trading window."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"If the reporting person ceases to provide services to the Issuer for any reason, all Restricted Stock Units that have not yet vested shall be forfeited without consideration except as provided in our Equity Grant Policy for Outside Directors and any other agreements between the reporting person and Issuer, regarding award vesting and exercisability."}],"balance_after":9000,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":9000},"source":{"system":"sec-edgar","filing":"0000950103-17-005527","document":"dp77126_4-steven.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1039399/000095010317005527/dp77126_4-steven.xml","form_type":"4"}},{"id":4308532,"issuer":{"id":3670,"kind":"organization","name":"FORMFACTOR INC","symbol":"FORM"},"owners":[{"id":10158,"kind":"person","name":"STEVEN-WAISS KELLEY","position":1,"cik":"0001498143","reported_name":"STEVEN-WAISS KELLEY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2017-05-23T20:18:32.000Z","date":"2017-05-20","kind":"exercise","acquired":false,"shares":9000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Restricted Stock Units Vest and become exercisable in 12 equal monthly installments with the vesting dates beginning on June 20, 2016 and ending on May 20, 2017. Settlements of vested units into common stock will occur on the earlier of May 20, 2017 or the date the reporting person ceases to provide service to the Issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The restricted stock units released were settled in shares of common stock and were immediately cancelled upon settlement."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":9000},"source":{"system":"sec-edgar","filing":"0000950103-17-004827","document":"dp76395_4-steven.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1039399/000095010317004827/dp76395_4-steven.xml","form_type":"4"}},{"id":4308531,"issuer":{"id":3670,"kind":"organization","name":"FORMFACTOR INC","symbol":"FORM"},"owners":[{"id":10158,"kind":"person","name":"STEVEN-WAISS KELLEY","position":1,"cik":"0001498143","reported_name":"STEVEN-WAISS KELLEY","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-23T20:18:32.000Z","date":"2017-05-20","kind":"exercise","acquired":true,"shares":9000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":9000,"source":{"system":"sec-edgar","filing":"0000950103-17-004827","document":"dp76395_4-steven.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1039399/000095010317004827/dp76395_4-steven.xml","form_type":"4"}}]}