{"cik":"0001342570","entityType":"other","sic":"","sicDescription":"","ownerOrg":"","insiderTransactionForOwnerExists":1,"insiderTransactionForIssuerExists":0,"name":"Caulfield Thomas","tickers":[],"exchanges":[],"ein":null,"lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":null,"stateOfIncorporation":"","stateOfIncorporationDescription":"","addresses":{"mailing":{"street1":"C/O WESTERN DIGITAL CORPORATION","street2":"5601 GREAT OAKS PARKWAY","city":"SAN JOSE","stateOrCountry":"CA","zipCode":"95119","stateOrCountryDescription":"CA","isForeignLocation":0,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":null,"street2":null,"city":null,"stateOrCountry":null,"zipCode":null,"stateOrCountryDescription":null,"isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":null,"flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001342570-26-000012","0001342570-26-000009","0001342570-26-000007","0001363249-26-000031","0001709048-26-000114","0001342570-26-000005","0001342570-26-000003","0001628280-26-018876","0001363249-26-000008","0001363249-25-000114","0001363249-25-000015","0001363249-25-000002","0001266824-24-000114","0001959173-24-004876","0001959173-24-004863","0001959173-24-004841","0001266824-23-000107","0001959173-23-002091","0001959173-23-002040","0001959173-23-002013","0001959173-23-002000","0001959173-23-001985","0001959173-23-001934","0001959173-23-001881","0001959173-23-001873","0001959173-23-001837","0001959173-23-001818","0001959173-23-001765","0001959173-23-001638","0001959173-23-001504","0001959173-23-001430","0001959173-23-001393","0001959173-23-001378","0001266824-22-000081","0001266824-21-000073","0001363249-21-000007","0001363249-21-000005","0001437749-13-011897","0001437749-13-006854","0001437749-12-005444","0001437749-11-003739","0001140361-10-022464","0001209191-09-057775","0001209191-09-038998","0001181431-09-028624","0001209191-09-027661","0000836106-08-000034","0000836106-08-000028","0000836106-08-000020","0001209191-08-049207","0001209191-08-048511","0001209191-08-033258","0000836106-07-000086","0001209191-07-033862","0000836106-07-000034","0000836106-06-000035","0000836106-06-000018","0001209191-06-050798","0001209191-06-050796","0001342570-05-000004","0001342570-05-000003"],"filingDate":["2026-10-05","2026-07-07","2026-06-04","2026-05-14","2026-05-05","2026-03-23","2026-03-19","2026-03-17","2026-03-05","2025-11-19","2025-03-04","2025-01-31","2024-11-22","2024-07-12","2024-07-11","2024-07-10","2023-11-16","2023-06-26","2023-06-21","2023-06-20","2023-06-20","2023-06-16","2023-06-15","2023-06-14","2023-06-14","2023-06-13","2023-06-12","2023-06-09","2023-06-07","2023-06-02","2023-05-31","2023-05-30","2023-05-26","2022-11-17","2021-11-17","2021-07-08","2021-07-08","2013-09-11","2013-05-30","2012-05-24","2011-06-01","2010-05-20","2009-12-17","2009-08-04","2009-06-03","2009-05-19","2008-12-22","2008-12-17","2008-11-04","2008-08-26","2008-08-20","2008-05-27","2007-12-17","2007-05-30","2007-03-02","2006-12-15","2006-11-17","2006-09-19","2006-09-19","2005-11-01","2005-11-01"],"reportDate":["2026-10-01","2026-07-07","2026-06-03","2026-05-12","2026-05-01","2026-03-19","2026-03-09","2026-03-17","2026-03-03","2025-11-18","2025-02-28","2025-01-31","2024-11-20","","","","2023-11-15","","","","","","","","","","","","","","","","","2022-11-16","2021-11-16","2021-07-06","2021-07-06","2013-09-11","2013-05-28","2012-05-22","2011-05-27","2010-05-18","2009-12-16","2009-07-31","2009-06-02","2009-05-15","2008-12-18","2008-12-15","2008-10-31","2008-08-19","2008-08-18","2008-05-22","2007-12-13","2007-05-30","2007-02-28","2006-12-14","2006-11-17","2006-09-15","2006-09-15","2005-10-31","2005-10-31"],"acceptanceDateTime":["2026-10-06T00:48:18.000Z","2026-07-07T23:15:51.000Z","2026-06-04T23:21:50.000Z","2026-05-14T21:36:17.000Z","2026-05-05T15:45:27.000Z","2026-03-24T00:57:08.000Z","2026-03-19T22:00:16.000Z","2026-03-17T21:12:42.000Z","2026-03-06T00:12:45.000Z","2025-11-20T00:39:22.000Z","2025-03-04T23:14:55.000Z","2025-02-01T00:36:56.000Z","2024-11-22T22:27:31.000Z","2024-07-12T19:37:48.000Z","2024-07-11T20:36:57.000Z","2024-07-10T20:14:59.000Z","2023-11-16T22:02:16.000Z","2023-06-26T17:40:42.000Z","2023-06-21T20:09:50.000Z","2023-06-20T20:46:41.000Z","2023-06-20T19:30:45.000Z","2023-06-16T20:50:30.000Z","2023-06-15T19:38:44.000Z","2023-06-14T20:18:27.000Z","2023-06-14T19:10:36.000Z","2023-06-13T19:56:24.000Z","2023-06-12T21:27:57.000Z","2023-06-09T20:40:14.000Z","2023-06-07T16:52:06.000Z","2023-06-02T20:48:07.000Z","2023-05-31T20:33:11.000Z","2023-05-30T15:36:03.000Z","2023-05-26T20:57:06.000Z","2022-11-17T23:30:54.000Z","2021-11-18T01:48:11.000Z","2021-07-08T22:22:20.000Z","2021-07-08T22:14:28.000Z","2013-09-11T23:32:16.000Z","2013-05-30T11:45:07.000Z","2012-05-24T17:28:48.000Z","2011-06-01T22:59:22.000Z","2010-05-20T22:36:21.000Z","2009-12-18T02:35:09.000Z","2009-08-04T23:20:39.000Z","2009-06-03T18:23:10.000Z","2009-05-20T00:25:57.000Z","2008-12-22T22:45:07.000Z","2008-12-17T22:57:06.000Z","2008-11-05T00:54:50.000Z","2008-08-27T01:20:23.000Z","2008-08-21T01:55:31.000Z","2008-05-28T00:18:18.000Z","2007-12-17T19:19:50.000Z","2007-05-30T22:21:13.000Z","2007-03-02T20:12:47.000Z","2006-12-15T17:03:58.000Z","2006-11-18T00:23:12.000Z","2006-09-19T20:56:46.000Z","2006-09-19T20:54:36.000Z","2005-11-01T18:32:43.000Z","2005-11-01T18:32:22.000Z"],"act":["34","34","34","34","34","34","34","34","34","34","34","34","34","","","","34","","","","","","","","","","","","","","","","","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34","34"],"form":["4","4","4","4","4","4","3","3","4","4","4","3","4","144","144","144","4","144","144","144/A","144","144","144","144/A","144","144","144","144","144","144","144","144","144","4","4","4","3","4","4","4","4","4","4","4","4","4","4","4","4","4/A","4","4","4","4","4","4","4","4","3","4","3"],"fileNumber":["001-41711","001-41711","001-41711","001-42420","001-40974","001-41711","001-41711","001-40974","001-42420","001-42420","001-42420","001-42420","001-08703","","","","001-08703","","","","","","","","","","","","","","","","","001-08703","001-08703","001-08703","001-08703","000-31311","000-31311","000-31311","000-31311","000-31311","000-31311","000-31311","000-17157","000-31311","000-17157","000-17157","000-17157","000-31311","000-31311","000-31311","000-17157","000-31311","000-17157","000-17157","000-17157","000-31311","000-31311","000-17157","000-17157"],"filmNumber":["261442109","261160540","261066526","26980726","26941540","26783951","26775441","26763424","26728024","251500646","25707218","25580087","241491037","","","","231415384","","","","","","","","","","","","","","","","","221400041","211422348","211081219","211081192","131091942","13879913","12866634","11886645","10848995","091248451","09985278","09870884","09840850","081265001","081255967","081162131","081040401","081031140","08862130","071309710","07888800","07667397","061279382","061228132","061098471","061098461","051169066","051169062"],"items":["","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""],"core_type":["4","4","4","4","4","4","3","3","4","4","4","3","4","144","144","144","4","144","144","144/A","144","144","144","144/A","144","144","144","144","144","144","144","144","144","4","4","4","3","4","4","4","4","4","4","4","4","4","4","4","4","4/A","4","4","4","4","4","4","4","4","3","4","3"],"size":[13491,13490,19497,5791,5384,14243,11785,494103,6283,4792,7528,6105,4761,6164,5569,5525,4682,12102,11514,11132,10916,10321,9719,9359,9138,8534,7937,7351,6744,6160,5556,4967,4372,4650,4649,4645,5975,4223,9319,6495,6472,5864,12529,5863,5571,6332,12119,7720,7595,14716,14335,5889,8261,5893,44758,7224,8299,5894,6301,9132,3277],"isXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isXBRLNumeric":[0,0,0,0,0,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"primaryDocument":["xslF345X06/wk-form4_1791247695.xml","xslF345X06/wk-form4_1783466149.xml","xslF345X06/wk-form4_1780615306.xml","xslF345X06/edgardoc.xml","xslF345X06/wk-form4_1777995925.xml","xslF345X06/wk-form4_1774313826.xml","xslF345X06/wk-form3_1773957610.xml","xslF345X02/wk-form3_1773781956.xml","xslF345X05/edgardoc.xml","xslF345X05/edgardoc.xml","xslF345X05/primary_doc.xml","xslF345X02/primary_doc.xml","xslF345X05/edgardoc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xslF345X05/edgardoc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xsl144X01/primary_doc.xml","xslF345X03/edgardoc.xml","xslF345X03/edgardoc.xml","xslF345X03/edgardoc.xml","xslF345X02/edgardoc.xml","xslF345X03/rdgdoc.xml","xslF345X03/rdgdoc.xml","xslF345X03/rdgdoc.xml","xslF345X03/rdgdoc.xml","xslF345X03/doc1.xml","xslF345X03/doc4.xml","xslF345X03/doc4.xml","xslF345X03/rrd244802.xml","xslF345X03/doc4.xml","xslF345X03/primary_doc.xml","xslF345X03/primary_doc.xml","xslF345X03/primary_doc.xml","xslF345X03/doc4a.xml","xslF345X03/doc4.xml","xslF345X02/doc4.xml","xslF345X02/primary_doc.xml","xslF345X02/doc4.xml","xslF345X02/edgardoc.xml","xslF345X02/edgardoc.xml","xslF345X02/edgardoc.xml","xslF345X02/doc4.xml","xslF345X02/doc3.xml","xslF345X02/edgardoc.xml","xslF345X02/edgardoc.xml"],"primaryDocDescription":["FORM 4","FORM 4","FORM 4","PRIMARY DOCUMENT","FORM 4","FORM 4","FORM 3","FORM 3","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","","","","PRIMARY DOCUMENT","","","","","","","","","","","","","","","","","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 4","FORM 4 SUBMISSION","FORM 4 SUBMISSION","NVLS FORM 4 CAULFIELD 20090602","FORM 4 SUBMISSION","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 4/A SUBMISSION","FORM 4 SUBMISSION","FORM 4 SUBMISSION","PRIMARY DOCUMENT","FORM 4 SUBMISSION","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 4 SUBMISSION","FORM 3 SUBMISSION","PRIMARY DOCUMENT","PRIMARY DOCUMENT"]},"files":[]}}