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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":53354,"source":{"system":"sec-edgar","filing":"0001186747-18-000031","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674718000031/edgar.xml","form_type":"4"}},{"id":4028444,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":64082,"kind":"person","name":"Thompson Stephen S.","position":1,"cik":"0001664330","reported_name":"Thompson Stephen S.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2018-03-01T00:00:06.000Z","date":"2018-02-26","kind":"tax_withholding","acquired":false,"shares":2460,"price":35.29,"value":86813.4,"ownership":{"direct":true},"balance_after":78260,"source":{"system":"sec-edgar","filing":"0001186747-18-000022","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674718000022/edgar.xml","form_type":"4"}},{"id":4028443,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":64082,"kind":"person","name":"Thompson Stephen S.","position":1,"cik":"0001664330","reported_name":"Thompson Stephen S.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2018-03-01T00:00:06.000Z","date":"2018-02-26","kind":"grant","acquired":true,"shares":6594,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares underlying Performance Share Units that vested on February 26, 2018."}],"balance_after":80720,"source":{"system":"sec-edgar","filing":"0001186747-18-000022","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674718000022/edgar.xml","form_type":"4"}},{"id":4108852,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":64082,"kind":"person","name":"Thompson Stephen S.","position":1,"cik":"0001664330","reported_name":"Thompson Stephen S.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Career Restricted Stock Units","published_at":"2018-01-04T22:44:43.000Z","date":"2018-01-02","kind":"grant","acquired":true,"shares":2349,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Career Restricted Stock Units were granted to the Reporting Person for no consideration pursuant to the Issuer's Career Shares Program under its 2012 Stock Incentive Plan.  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Vesting plan calls for options to become exercisable at the rate of 33.333% per year on the first day of each successive 12 month period commencing one year from grant date."}],"balance_after":11962,"derivative":{"exercise_price":17.75,"expiration_date":"2026-11-08","underlying":"Common Stock","underlying_shares":11962},"source":{"system":"sec-edgar","filing":"0001186747-16-000114","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674716000114/edgar.xml","form_type":"4"}},{"id":4562854,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":64082,"kind":"person","name":"Thompson Stephen S.","position":1,"cik":"0001664330","reported_name":"Thompson Stephen S.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2016-11-10T00:10:15.000Z","date":"2016-11-08","kind":"grant","acquired":true,"shares":10406,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The Reporting Person was awarded 10,406 Restricted Stock Units for no consideration pursuant to the Issuer's 2012 Stock Incentive Plan.  Each Restricted Stock Unit represents a contingent right to receive one share of Issuer common stock upon vesting.  The Restricted Stock Units will vest in full upon the third anniversary of the date of award.  The Restricted Stock Units are subject to the forfeiture and other terms and conditions contained in the award agreement and the 2012 Stock Incentive Plan."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Reporting Person was awarded 10,406 Restricted Stock Units for no consideration pursuant to the Issuer's 2012 Stock Incentive Plan.  Each Restricted Stock Unit represents a contingent right to receive one share of Issuer common stock upon vesting.  The Restricted Stock Units will vest in full upon the third anniversary of the date of award.  The Restricted Stock Units are subject to the forfeiture and other terms and conditions contained in the award agreement and the 2012 Stock Incentive Plan."}],"balance_after":67828,"source":{"system":"sec-edgar","filing":"0001186747-16-000114","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674716000114/edgar.xml","form_type":"4"}},{"id":4562853,"issuer":{"id":3838,"kind":"organization","name":"BOYD GAMING CORP"},"owners":[{"id":64082,"kind":"person","name":"Thompson Stephen S.","position":1,"cik":"0001664330","reported_name":"Thompson Stephen S.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive Vice President"}}],"security":"Common Stock","published_at":"2016-11-10T00:10:15.000Z","date":"2016-11-07","kind":"tax_withholding","acquired":false,"shares":4102,"price":17.59,"value":72154.18,"ownership":{"direct":true},"balance_after":57422,"source":{"system":"sec-edgar","filing":"0001186747-16-000114","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/906553/000118674716000114/edgar.xml","form_type":"4"}}]}