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A cash amount equal to $41.42 was also paid to the holder to settle a fractional dividend equivalent of 0.5351. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. The related dividend equivalents will be determined on the July 16, 2018 dividend payable date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $41.42 was also paid to the holder to settle a fractional dividend equivalent of 0.5351. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. The related dividend equivalents will be determined on the July 16, 2018 dividend payable date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $41.42 was also paid to the holder to settle a fractional dividend equivalent of 0.5351. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. The related dividend equivalents will be determined on the July 16, 2018 dividend payable date."}],"balance_after":9773.22,"derivative":{"underlying":"Common Stock","underlying_shares":1447.5351},"source":{"system":"sec-edgar","filing":"0001266824-18-000109","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000109/edgardoc.xml","form_type":"4"}},{"id":413653,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2018-07-03T22:48:49.000Z","date":"2018-06-30","kind":"exercise","acquired":false,"shares":1964.5556,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $43.01 was also paid to the holder to settle a fractional dividend equivalent of 0.5556. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. The related dividend equivalents will be determined on the July 16, 2018 dividend payable date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $43.01 was also paid to the holder to settle a fractional dividend equivalent of 0.5556. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. The related dividend equivalents will be determined on the July 16, 2018 dividend payable date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $43.01 was also paid to the holder to settle a fractional dividend equivalent of 0.5556. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. The related dividend equivalents will be determined on the July 16, 2018 dividend payable date."}],"balance_after":11220.7551,"derivative":{"underlying":"Common Stock","underlying_shares":1964.5556},"source":{"system":"sec-edgar","filing":"0001266824-18-000109","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000109/edgardoc.xml","form_type":"4"}},{"id":413652,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2018-07-03T22:48:49.000Z","date":"2018-07-01","kind":"tax_withholding","acquired":false,"shares":8980,"price":77.41,"value":695141.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e)."}],"balance_after":189847,"source":{"system":"sec-edgar","filing":"0001266824-18-000109","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000109/edgardoc.xml","form_type":"4"}},{"id":413651,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2018-07-03T22:48:49.000Z","date":"2018-07-01","kind":"exercise","acquired":true,"shares":1447,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $41.42 was also paid to the holder to settle a fractional dividend equivalent of 0.5351. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. 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A cash amount equal to $43.01 was also paid to the holder to settle a fractional dividend equivalent of 0.5556. Balance excludes the dividend equivalents that will be earned in connection with the June 29, 2018 dividend record date. The related dividend equivalents will be determined on the July 16, 2018 dividend payable date."}],"balance_after":209568,"source":{"system":"sec-edgar","filing":"0001266824-18-000109","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000109/edgardoc.xml","form_type":"4"}},{"id":415789,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2018-04-18T23:50:28.000Z","date":"2018-04-16","kind":"grant","acquired":true,"shares":1502.5833,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof."}],"balance_after":13185.3107,"derivative":{"underlying":"Common Stock","underlying_shares":1502.5833},"source":{"system":"sec-edgar","filing":"0001266824-18-000085","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000085/edgardoc.xml","form_type":"4"}},{"id":416840,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2018-03-14T00:08:49.000Z","date":"2018-03-09","kind":"sale","acquired":false,"shares":4213,"price":98.9371,"value":416822.0023,"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 March 16, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $98.72 to a high of $99.01. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":207604,"source":{"system":"sec-edgar","filing":"0001266824-18-000060","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000060/edgardoc.xml","form_type":"4"}},{"id":416839,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2018-03-14T00:08:49.000Z","date":"2018-03-09","kind":"sale","acquired":false,"shares":2813,"price":98.2019,"value":276241.9447,"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 March 16, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $97.72 to a high of $98.70. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":211817,"source":{"system":"sec-edgar","filing":"0001266824-18-000060","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000060/edgardoc.xml","form_type":"4"}},{"id":417241,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2018-03-09T00:19:03.000Z","date":"2018-03-07","kind":"exercise","acquired":false,"shares":848.0266,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents dividend equivalents that were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount equal to $2.53 was also paid to the Reporting Person to settle a fractional dividend equivalent of 0.0266."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents dividend equivalents that were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount equal to $2.53 was also paid to the Reporting Person to settle a fractional dividend equivalent of 0.0266."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents dividend equivalents that were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount equal to $2.53 was also paid to the Reporting Person to settle a fractional dividend equivalent of 0.0266."}],"balance_after":11682.7274,"derivative":{"underlying":"Common Stock","underlying_shares":848.0266},"source":{"system":"sec-edgar","filing":"0001266824-18-000053","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000053/edgardoc.xml","form_type":"4"}},{"id":417240,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2018-03-09T00:19:03.000Z","date":"2018-03-06","kind":"grant","acquired":true,"shares":4147.4153,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"The dividend equivalents accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The dividend equivalents accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The dividend equivalents accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target."}],"balance_after":12530.754,"derivative":{"underlying":"Common Stock","underlying_shares":4147.4153},"source":{"system":"sec-edgar","filing":"0001266824-18-000053","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000053/edgardoc.xml","form_type":"4"}},{"id":417239,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2018-03-09T00:19:03.000Z","date":"2018-03-07","kind":"tax_withholding","acquired":false,"shares":4307,"price":95.27,"value":410327.89,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e)."}],"balance_after":214630,"source":{"system":"sec-edgar","filing":"0001266824-18-000053","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000053/edgardoc.xml","form_type":"4"}},{"id":417238,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2018-03-09T00:19:03.000Z","date":"2018-03-07","kind":"exercise","acquired":true,"shares":848,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents dividend equivalents that were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount equal to $2.53 was also paid to the Reporting Person to settle a fractional dividend equivalent of 0.0266."}],"balance_after":218937,"source":{"system":"sec-edgar","filing":"0001266824-18-000053","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000053/edgardoc.xml","form_type":"4"}},{"id":417237,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2018-03-09T00:19:03.000Z","date":"2018-03-06","kind":"grant","acquired":true,"shares":134172,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents stock units that have been earned by the Reporting Person as payment in respect of the vesting of performance-based restricted stock units.  Of these shares 10,485 vested on March 7, 2018 and 123,687 will vest on March 7, 2019."}],"balance_after":218089,"source":{"system":"sec-edgar","filing":"0001266824-18-000053","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682418000053/edgardoc.xml","form_type":"4"}},{"id":419592,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Employee Stock Option (right to buy)","published_at":"2018-02-06T01:26:17.000Z","date":"2018-02-05","kind":"exercise","acquired":false,"shares":4466,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 16, 2017."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The option vested 25% one year from the grant date of 8/3/2016, and an additional 6.25% vested at the end of each three-month period through 2/3/2018.  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A cash amount equal to $31.02 was also paid to the holder to settle a fractional dividend equivalent of 0.3671."}],"balance_after":6427.9075,"derivative":{"underlying":"Common Stock","underlying_shares":108.3671},"source":{"system":"sec-edgar","filing":"0001266824-17-000176","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000176/edgardoc.xml","form_type":"4"}},{"id":424210,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-08-08T00:04:44.000Z","date":"2017-08-04","kind":"sale","acquired":false,"shares":19777,"price":84.4972,"value":1671101.1244,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 16, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $84.08 to a high of $84.80. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":86690,"source":{"system":"sec-edgar","filing":"0001266824-17-000176","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000176/edgardoc.xml","form_type":"4"}},{"id":424209,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-08-08T00:04:44.000Z","date":"2017-08-04","kind":"exercise","acquired":true,"shares":17867,"price":44.78,"value":800084.26,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"These transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 16, 2017."}],"balance_after":106467,"source":{"system":"sec-edgar","filing":"0001266824-17-000176","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000176/edgardoc.xml","form_type":"4"}},{"id":424208,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-08-08T00:04:44.000Z","date":"2017-08-03","kind":"tax_withholding","acquired":false,"shares":2083,"price":84.51,"value":176034.33,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e)."}],"balance_after":88600,"source":{"system":"sec-edgar","filing":"0001266824-17-000176","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000176/edgardoc.xml","form_type":"4"}},{"id":424207,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-08-08T00:04:44.000Z","date":"2017-08-03","kind":"exercise","acquired":true,"shares":108,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate. A cash amount equal to $31.02 was also paid to the holder to settle a fractional dividend equivalent of 0.3671."}],"balance_after":90683,"source":{"system":"sec-edgar","filing":"0001266824-17-000176","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000176/edgardoc.xml","form_type":"4"}},{"id":424264,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-08-04T23:40:12.000Z","date":"2017-08-02","kind":"grant","acquired":true,"shares":21667,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Represents the grant of restricted stock units to the Reporting Person.  Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":90575,"source":{"system":"sec-edgar","filing":"0001266824-17-000169","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000169/edgardoc.xml","form_type":"4"}},{"id":424773,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2017-07-21T01:07:43.000Z","date":"2017-07-19","kind":"exercise","acquired":false,"shares":1545.542,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"With respect to the dividend equivalents, an additional 2,502.8198 dividend equivalents were accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target. Of the total 3,863.6843 accrued dividend equivalents, 1,545 dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of the performance-based restricted stock units to which the dividend equivalents relate, and the remaining accrued dividend equivalents will convert into, and be paid in the form of, shares of the Issuers common stock in connection with the vesting of the performance-based restricted stock unit award to which the dividend equivalents relate. A cash amount equal to $51.21 was also paid to the holder to settle a fractional dividend of 0.5420."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"With respect to the dividend equivalents, an additional 2,502.8198 dividend equivalents were accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target. Of the total 3,863.6843 accrued dividend equivalents, 1,545 dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of the performance-based restricted stock units to which the dividend equivalents relate, and the remaining accrued dividend equivalents will convert into, and be paid in the form of, shares of the Issuers common stock in connection with the vesting of the performance-based restricted stock unit award to which the dividend equivalents relate. A cash amount equal to $51.21 was also paid to the holder to settle a fractional dividend of 0.5420."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"With respect to the dividend equivalents, an additional 2,502.8198 dividend equivalents were accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target. Of the total 3,863.6843 accrued dividend equivalents, 1,545 dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of the performance-based restricted stock units to which the dividend equivalents relate, and the remaining accrued dividend equivalents will convert into, and be paid in the form of, shares of the Issuers common stock in connection with the vesting of the performance-based restricted stock unit award to which the dividend equivalents relate. A cash amount equal to $51.21 was also paid to the holder to settle a fractional dividend of 0.5420."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"With respect to the dividend equivalents, an additional 2,502.8198 dividend equivalents were accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target. Of the total 3,863.6843 accrued dividend equivalents, 1,545 dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of the performance-based restricted stock units to which the dividend equivalents relate, and the remaining accrued dividend equivalents will convert into, and be paid in the form of, shares of the Issuers common stock in connection with the vesting of the performance-based restricted stock unit award to which the dividend equivalents relate. A cash amount equal to $51.21 was also paid to the holder to settle a fractional dividend of 0.5420."}],"balance_after":6536.2746,"derivative":{"underlying":"Common Stock","underlying_shares":1545.542},"source":{"system":"sec-edgar","filing":"0001266824-17-000154","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000154/edgardoc.xml","form_type":"4"}},{"id":424772,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-07-21T01:07:43.000Z","date":"2017-07-20","kind":"sale","acquired":false,"shares":11557,"price":94.8242,"value":1095883.2794,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 16, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $94.28 to a high of $95.01. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":68908,"source":{"system":"sec-edgar","filing":"0001266824-17-000154","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000154/edgardoc.xml","form_type":"4"}},{"id":424771,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-07-21T01:07:43.000Z","date":"2017-07-19","kind":"sale","acquired":false,"shares":17028,"price":93.8435,"value":1597967.118,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 16, 2017."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $93.48 to a high of $94.31. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price."}],"balance_after":80465,"source":{"system":"sec-edgar","filing":"0001266824-17-000154","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000154/edgardoc.xml","form_type":"4"}},{"id":424770,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-07-21T01:07:43.000Z","date":"2017-07-19","kind":"tax_withholding","acquired":false,"shares":12609,"price":94.48,"value":1191298.32,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e)."}],"balance_after":97493,"source":{"system":"sec-edgar","filing":"0001266824-17-000154","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000154/edgardoc.xml","form_type":"4"}},{"id":424769,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-07-21T01:07:43.000Z","date":"2017-07-19","kind":"grant","acquired":true,"shares":56551,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents shares issued as payment in respect of the vesting of a performance-based restricted stock unit award. Of the total 56,551 shares, 22,621 vested on 7/22/2016, 22,620 shares will vest on 6/30/2018, and 11,310 shares will vest on 6/30/2019."}],"balance_after":110102,"source":{"system":"sec-edgar","filing":"0001266824-17-000154","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000154/edgardoc.xml","form_type":"4"}},{"id":424768,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Common Stock","published_at":"2017-07-21T01:07:43.000Z","date":"2017-07-19","kind":"exercise","acquired":true,"shares":1545,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"With respect to the dividend equivalents, an additional 2,502.8198 dividend equivalents were accrued in connection with a determination that the performance-based restricted stock units to which the dividend equivalents relate were achieved at a level greater than target. Of the total 3,863.6843 accrued dividend equivalents, 1,545 dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of the performance-based restricted stock units to which the dividend equivalents relate, and the remaining accrued dividend equivalents will convert into, and be paid in the form of, shares of the Issuers common stock in connection with the vesting of the performance-based restricted stock unit award to which the dividend equivalents relate. A cash amount equal to $51.21 was also paid to the holder to settle a fractional dividend of 0.5420."}],"balance_after":53551,"source":{"system":"sec-edgar","filing":"0001266824-17-000154","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000154/edgardoc.xml","form_type":"4"}},{"id":424837,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2017-07-20T00:07:23.000Z","date":"2017-07-17","kind":"exercise","acquired":false,"shares":187.2684,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalents accrued in connection with the dividend paid on July 17, 2017 that were converted into, and paid in the form of shares of the Issuer's common stock on a one-for-one basis as a result of the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount was also paid to the holder to settle a fractional dividend equivalent of 0.2684."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalents accrued in connection with the dividend paid on July 17, 2017 that were converted into, and paid in the form of shares of the Issuer's common stock on a one-for-one basis as a result of the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount was also paid to the holder to settle a fractional dividend equivalent of 0.2684."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalents accrued in connection with the dividend paid on July 17, 2017 that were converted into, and paid in the form of shares of the Issuer's common stock on a one-for-one basis as a result of the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount was also paid to the holder to settle a fractional dividend equivalent of 0.2684."}],"balance_after":5578.9968,"derivative":{"underlying":"Common Stock","underlying_shares":187.2684},"source":{"system":"sec-edgar","filing":"0001266824-17-000141","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000141/edgardoc.xml","form_type":"4"}},{"id":424836,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2017-07-20T00:07:23.000Z","date":"2017-07-17","kind":"grant","acquired":true,"shares":903.9774,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. Each dividend equivalent right represents a contingent right to receive one share of the Issuer's common stock or the cash value thereof."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The dividend equivalent rights accrued on previously awarded restricted stock units (RSUs) which vest proportionately with the RSUs to which they relate. 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A cash amount was also paid to the holder to settle a fractional dividend equivalent of 0.2684."}],"balance_after":52103,"source":{"system":"sec-edgar","filing":"0001266824-17-000141","document":"edgardoc.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682417000141/edgardoc.xml","form_type":"4"}},{"id":425017,"issuer":{"id":1010,"kind":"organization","name":"WESTERN DIGITAL CORP","symbol":"WDC"},"owners":[{"id":15979,"kind":"person","name":"LONG MARK P","position":1,"cik":"0001593123","reported_name":"LONG MARK P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres WD Capital, CSO & CFO"}}],"security":"Dividend Equivalent Rights","published_at":"2017-07-06T00:56:55.000Z","date":"2017-07-01","kind":"exercise","acquired":false,"shares":2089.9484,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount equal to $84.03 was also paid to the holder to settle a fractional dividend equivalent of 0.9484.  Balance excludes the dividend equivalents that will be earned in connection with the June 30, 2017 dividend record date.  The related dividend equivalents will be determined on the July 17, 2017 dividend payable date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount equal to $84.03 was also paid to the holder to settle a fractional dividend equivalent of 0.9484.  Balance excludes the dividend equivalents that will be earned in connection with the June 30, 2017 dividend record date.  The related dividend equivalents will be determined on the July 17, 2017 dividend payable date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  A cash amount equal to $84.03 was also paid to the holder to settle a fractional dividend equivalent of 0.9484.  Balance excludes the dividend equivalents that will be earned in connection with the June 30, 2017 dividend record date.  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A cash amount equal to $84.03 was also paid to the holder to settle a fractional dividend equivalent of 0.9484.  Balance excludes the dividend equivalents that will be earned in connection with the June 30, 2017 dividend record date.  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These shares were sold in multiple transactions at prices ranging from a low of $88.25 to a high of $88.31. 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These shares were sold in multiple transactions at prices ranging from a low of $87.25 to a high of $88.18. 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An aggregate cash amount equal to $47.64 was also paid to the holder to settle an aggregate of 0.9235 fractional dividend equivalents."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  An aggregate cash amount equal to $47.64 was also paid to the holder to settle an aggregate of 0.9235 fractional dividend equivalents."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The dividend equivalents were converted into, and paid in the form of, shares of the issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to which the dividend equivalents relate.  An aggregate cash amount equal to $47.64 was also paid to the holder to settle an aggregate of 0.9235 fractional dividend equivalents."}],"balance_after":3191.8819,"derivative":{"underlying":"Common Stock","underlying_shares":596.9235},"source":{"system":"sec-edgar","filing":"0001266824-16-000385","document":"edgardoc.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/106040/000126682416000385/edgardoc.xml","form_type":"4"}}],"next_cursor":"2016-09-13T23:32:36.000000Z,435056"}