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Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"The number of shares have been adjusted for the effect of the 1-for-8 reverse stock split effective April 18, 2017."}],"balance_after":407207,"source":{"system":"sec-edgar","filing":"0001209191-17-054766","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000120919117054766/doc4.xml","form_type":"4"}},{"id":4218959,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":172849,"kind":"person","name":"GACEK JON W","position":1,"cik":"0001188975","reported_name":"GACEK JON W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2017-09-05T20:40:43.000Z","date":"2017-09-01","kind":"sale","acquired":false,"shares":12254,"price":5.4997,"value":67393.3238,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 25, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The sale price reported in column 4 of Table I represents the weighted average sale price of the shares sold ranging from $5.40 to $5.535 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the reporting person will provide full information regarding the number of shares sold at each separate price."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"The number of shares have been adjusted for the effect of the 1-for-8 reverse stock split effective April 18, 2017."}],"balance_after":401414,"source":{"system":"sec-edgar","filing":"0001209191-17-051349","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000120919117051349/doc4.xml","form_type":"4"}},{"id":4266506,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":172849,"kind":"person","name":"GACEK JON W","position":1,"cik":"0001188975","reported_name":"GACEK JON W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2017-07-05T18:17:34.000Z","date":"2017-07-01","kind":"tax_withholding","acquired":false,"shares":36985,"price":7.81,"value":288852.85,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Surrender of shares to satisfy income and other employment related tax withholding obligations upon vesting of restricted stock units granted on 7/1/2014, 7/1/2015 and 7/1/2016 and upon vesting of performance stock units granted on 7/1/2014 and 7/1/2016."}],"balance_after":413668,"source":{"system":"sec-edgar","filing":"0001209191-17-043073","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/709283/000120919117043073/doc4.xml","form_type":"4"}},{"id":4266505,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":172849,"kind":"person","name":"GACEK JON W","position":1,"cik":"0001188975","reported_name":"GACEK JON W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2017-07-05T18:17:34.000Z","date":"2017-07-01","kind":"grant","acquired":true,"shares":51975,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted stock units will vest in equal installments on 07/01/2018, 07/01/2019, and 07/01/2020."}],"balance_after":450653,"source":{"system":"sec-edgar","filing":"0001209191-17-043073","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000120919117043073/doc4.xml","form_type":"4"}},{"id":4298994,"issuer":{"id":4987,"kind":"organization","name":"QUANTUM CORP /DE/","symbol":"QMCO"},"owners":[{"id":172849,"kind":"person","name":"GACEK JON W","position":1,"cik":"0001188975","reported_name":"GACEK JON W","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President and CEO"}}],"security":"Common Stock","published_at":"2017-06-01T17:07:32.000Z","date":"2017-05-31","kind":"grant","acquired":true,"shares":44069,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Performance stock units will vest in equal installments on 7/1/17, 7/1/18 and 7/1/19."}],"balance_after":398678,"source":{"system":"sec-edgar","filing":"0001209191-17-036681","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/709283/000120919117036681/doc4.xml","form_type":"4"}}]}