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Pursuant to the terms of the Option, 33 1/3% of the Shares became exercisable on March 7, 2012, an additional 33 1/3% of the Shares became exercisable on March 7, 2013, and the remaining 33 1/3% of the Shares became exercisable on March 7, 2014."}],"balance_after":0,"derivative":{"exercise_price":10.71,"exercise_date":"2012-03-07","expiration_date":"2018-03-07","underlying":"Common","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001225208-18-003418","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1097864/000122520818003418/doc4.xml","form_type":"4"}},{"id":4048868,"issuer":{"id":3161,"kind":"organization","name":"ON SEMICONDUCTOR CORP","symbol":"ON"},"owners":[{"id":90906,"kind":"person","name":"ABE ATSUSHI","position":1,"cik":"0001512771","reported_name":"ABE ATSUSHI","relationship":{"director":true}}],"security":"Common","published_at":"2018-02-20T22:52:20.000Z","date":"2018-02-15","kind":"sale","acquired":false,"shares":20000,"price":22.5318,"value":450636.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"This disposition transaction was executed in multiple trades at prices ranging from $22.53 to $22.545.  The price reported above reflects the weighted average sale price.  The Reporting Person hereby undertakes to provide, upon request, to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected."}],"balance_after":134913,"source":{"system":"sec-edgar","filing":"0001225208-18-003418","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1097864/000122520818003418/doc4.xml","form_type":"4"}},{"id":4048867,"issuer":{"id":3161,"kind":"organization","name":"ON SEMICONDUCTOR CORP","symbol":"ON"},"owners":[{"id":90906,"kind":"person","name":"ABE ATSUSHI","position":1,"cik":"0001512771","reported_name":"ABE ATSUSHI","relationship":{"director":true}}],"security":"Common","published_at":"2018-02-20T22:52:20.000Z","date":"2018-02-15","kind":"exercise","acquired":true,"shares":20000,"price":10.71,"value":214200.0,"ownership":{"direct":true},"balance_after":154913,"source":{"system":"sec-edgar","filing":"0001225208-18-003418","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1097864/000122520818003418/doc4.xml","form_type":"4"}},{"id":4290264,"issuer":{"id":3161,"kind":"organization","name":"ON SEMICONDUCTOR CORP","symbol":"ON"},"owners":[{"id":90906,"kind":"person","name":"ABE ATSUSHI","position":1,"cik":"0001512771","reported_name":"ABE ATSUSHI","relationship":{"director":true}}],"security":"Common","published_at":"2017-06-07T22:42:01.000Z","date":"2017-06-05","kind":"tax_withholding","acquired":false,"shares":1197,"price":16.11,"value":19283.67,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"This disposition transaction represents shares withheld by the Issuer in connection with the Award to satisfy the Reporting Person's tax withholding obligations."}],"balance_after":134913,"source":{"system":"sec-edgar","filing":"0001225208-17-010999","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1097864/000122520817010999/doc4.xml","form_type":"4"}},{"id":4290263,"issuer":{"id":3161,"kind":"organization","name":"ON SEMICONDUCTOR CORP","symbol":"ON"},"owners":[{"id":90906,"kind":"person","name":"ABE ATSUSHI","position":1,"cik":"0001512771","reported_name":"ABE ATSUSHI","relationship":{"director":true}}],"security":"Common","published_at":"2017-06-07T22:42:01.000Z","date":"2017-06-05","kind":"grant","acquired":true,"shares":12726,"price":16.11,"value":205015.86,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 17, 2017, the Compensation Committee of the Board of Directors of the Issuer approved the award of fully-vested stock to the Reporting Person under the Issuer's Amended and Restated Stock Incentive Plan (the \"Plan\"), with a grant date of June 5, 2017 (the \"Award\"), subject to the terms and conditions of the Plan and the relevant award agreement.  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