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Western Digital Corp (WDC)Ownership Data

Short Interest History (%)

This is the historical short interest of Western Digital Corp, as measured by the Short Percentage Of Float.

Date Short Interest
January 15, 20151.35
December 31, 20141.44
December 15, 20141.71
November 28, 20141.59
November 14, 20141.68
October 31, 20142.17
October 15, 20141.33
September 30, 20141.32
September 15, 20141.56
August 29, 20141.53
August 15, 20141.53
July 31, 20141.5
July 15, 20141.16
June 30, 20141.22
June 13, 20141.43
May 30, 20141.3
May 15, 20141.31
April 30, 20141.27
April 15, 20141.57
March 31, 20141.39
March 14, 20141.33
February 28, 20141.55
February 14, 20141.45
January 31, 20141.2
January 15, 20141.13
December 31, 20131.31
December 13, 20131.9
November 29, 20131.87
November 15, 20131.88
October 31, 20131.87
October 15, 20132.41
September 30, 20132.58
September 13, 20132.83
August 30, 20132.57
August 15, 20132.59
July 31, 20132.23
July 15, 20132.36
June 28, 20132.32
June 14, 20133.18
May 31, 20133.65
May 15, 20133.41
April 30, 20132.74
April 15, 20132.82
March 28, 20132.8
March 15, 20133.2
February 28, 20132.92
February 15, 20133.07
January 31, 20133.13
January 15, 20134.59
December 31, 20125.66
December 14, 20125.45
November 30, 20124.99
November 15, 20124.78
October 31, 20124.3
October 15, 20123.33
September 28, 20123.04
September 14, 20122.7
August 31, 20122.21
August 15, 20122.38
July 31, 20122.55
July 13, 20124.63
June 29, 20124.12
June 15, 20124.06
May 31, 20123.54
May 15, 20123.08
April 30, 20121.32
April 13, 20121.45
March 30, 20121.81
March 15, 20121.68
February 29, 20121.09
February 15, 20121.39
January 31, 20121.51
January 13, 20121.92
December 30, 20112.05
December 15, 20112.49
November 30, 20111.64
November 15, 20111.3
October 31, 20112.56
October 14, 20112.82
September 30, 20113.43
September 15, 20113.95
August 31, 20113.33
August 15, 20112.72
July 29, 20112.33
July 15, 20112.48
June 30, 20112.01
June 15, 20112.61
May 31, 20112.44
May 13, 20112.29
April 29, 20113.29
April 15, 20113.62
March 31, 20113.82
March 15, 20112.54
February 28, 20113.3
February 15, 20114.42
January 31, 20113.28
January 14, 20112.67
December 31, 20102.77
December 15, 20103.27
November 30, 20103.7
November 15, 20104.5
October 29, 20103.48
October 15, 20104.71
September 30, 20104.43
September 15, 20103.3
August 31, 20102.57
August 13, 20102.52
July 30, 20102.95
July 15, 20104.31
June 30, 20105.75
June 15, 20104.96
May 28, 20104.86
May 14, 20103.27
April 30, 20103.42
April 15, 20105.32
March 31, 20105.79
March 15, 20105.16
February 26, 20103.53
February 12, 20103.55
January 29, 20103.25
January 15, 20103.66
December 31, 20094.13
December 15, 20093.97
November 30, 20095.11
November 13, 20096.05
October 30, 20095.38
October 15, 20095.37
September 30, 20094.32
September 15, 20093.6
August 31, 20095.19
August 14, 20094.4
July 31, 20092.98
July 15, 20094.01
June 30, 20093.72
June 15, 20093.53
May 29, 20092.93
May 15, 20093.22
April 30, 20092.27
April 15, 20092.13
March 31, 20091.79
March 13, 20092.54
February 27, 20091.77
February 13, 20092.39
January 30, 20092.66
January 15, 20092.47
December 31, 20082.08
December 15, 20082.46
November 28, 20082.29
November 14, 20081.42
October 31, 20081.45
October 15, 20082.23
September 30, 20085.53
September 15, 200810.01
August 29, 20087.81
August 15, 20087.68
July 31, 20088.66
July 15, 20088.16
June 30, 20087.91
June 13, 20089.32
May 30, 20089.72
May 15, 200811.38
April 30, 200810.62
April 15, 200810.28
March 31, 200810.6
March 14, 20088.48
February 29, 20086.28
February 15, 20084.62
January 31, 20081.85
January 15, 20082
December 31, 20071.72
December 11, 20072.57
November 27, 20072.28
November 9, 20072
October 26, 20072.08
October 10, 20072.73
September 25, 20072.93
September 11, 20072.21
August 10, 20071.82
July 10, 20072.9
June 12, 20073.53
May 10, 20072.6
April 10, 20073.28
March 12, 20072.88
February 12, 20072.18
January 9, 20071.43
December 12, 20061.47
November 10, 20061.64
October 10, 20062.34
September 12, 20064.37
August 10, 20064.61
July 11, 20065.39
June 12, 20064.42
May 10, 20063.41
April 10, 20064.13
March 10, 20064.24
February 10, 20064.48
January 10, 20064.32
December 12, 20056.19
November 10, 20058.65
October 11, 20059.16
September 12, 20057.61
August 10, 20056.63
July 12, 20057.34
June 10, 20054.85
May 10, 20056.17
April 12, 20055.02
March 10, 20052.77
February 10, 20052.17
January 11, 20051.62
December 10, 20041.66
November 10, 20042.17
October 12, 20042.1
September 10, 20042.49
August 10, 20042.57
July 12, 20042
June 9, 20042.62
May 11, 20041.62
April 12, 20041.63
March 10, 20042.28
February 10, 20042.17
January 12, 20042.12
December 10, 20031.79
November 11, 20032.15
October 10, 20033.13
September 10, 20034.8
August 12, 20036.76
July 10, 20039.28
June 10, 200310.3
May 12, 200311.23
April 10, 200310.31
March 11, 20039.51
February 11, 20036.35
January 10, 20036.31
December 10, 20026.34
November 12, 20023.36
October 10, 20023.05
September 10, 20022.74
August 12, 20023.05
July 10, 20022.34
June 11, 20024.11
May 10, 20023.15
April 10, 20022.68
March 12, 20022.42
February 12, 20022.92
January 10, 20022.76
December 11, 20012.82
November 12, 20012.41
October 10, 20012.35
September 5, 20012.14
August 10, 20012.2
July 10, 20011.91
June 12, 20011.86
May 10, 20012.05
April 9, 20012.15
March 12, 20012.07
February 12, 20012.1
January 9, 20011.97
December 12, 20001.94
November 10, 20003.08
October 10, 20004.31
September 12, 20005.05
August 10, 20004.8
July 11, 20004.7
June 12, 20004.65
May 10, 20005.53
April 11, 20004.81
March 10, 20005.17
February 10, 20004.86
January 11, 200010.37
December 10, 19998.64
November 10, 19999.63
October 12, 19999.06
July 12, 199910.91
June 10, 199910.54
May 11, 199910.42
April 12, 199910.12
March 10, 199910.61
February 9, 199910.44
January 8, 199912.69
December 8, 199817.86
November 6, 199818.07
October 8, 199817
September 8, 199817.81
August 7, 199817.23
July 8, 199817.66
June 8, 199818.11
May 8, 199816.87
April 7, 199815.56
March 6, 199815.39
February 6, 199810.96
January 8, 19989.63
December 8, 19979.31
November 7, 199711.08
October 8, 19977.45
September 8, 19979.01
July 8, 199714.48
June 6, 199716.96
May 8, 199713.01
April 8, 199713.51
March 7, 19977.13
February 7, 19975.65
January 8, 19973.6
December 6, 19964.12
November 8, 19965.85
October 8, 19964.22
September 6, 19964.86
August 8, 19965.19
July 8, 19963.35
June 7, 19962.2
May 8, 19962.34
April 8, 19961.15
March 8, 19960.98
February 8, 19962.34
January 8, 19962.06
December 8, 19952.89
November 8, 19952.29
October 6, 19953.18
September 8, 19951.86
August 8, 19951.75
July 7, 19951.53
June 8, 19952.41
May 8, 19951.86
April 6, 19950.81
March 8, 19951.31
February 8, 19952.17
January 6, 19952.77

Institutional Ownership History (%)

This the Institutional Ownership History of Western Digital CorpPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership
December 31, 201492
November 30, 201490
October 31, 201490
September 30, 201493
August 31, 201494
July 31, 201494
June 30, 201492
May 31, 201495
April 30, 201495
March 31, 201492
February 28, 201494
January 31, 201493
December 31, 201392
November 30, 201389
October 31, 201390
September 30, 201386
August 31, 201382
July 31, 201383
June 30, 201382
May 31, 201375
April 30, 201387
March 31, 201392
February 28, 201392
January 31, 201393
December 31, 201285
November 30, 201285
October 31, 201283
September 30, 201285
August 31, 201286
July 31, 201286
June 30, 201289
May 31, 201288
April 30, 201288
January 31, 201292
December 31, 201189
November 30, 201189
October 31, 201189
September 30, 201191
August 31, 201191
July 31, 201189
June 30, 201191
May 31, 201191
April 30, 201191
March 31, 201192
February 28, 201190
January 31, 201186
December 31, 201086
November 30, 201088
October 31, 201091
August 31, 201096
July 31, 2010100
June 30, 201099
March 31, 201099
February 28, 201099
January 31, 201098
December 31, 200997
November 30, 200998
October 31, 2009100
September 30, 200996
August 31, 200996
July 31, 200990
June 30, 200991
May 31, 200991
April 30, 200987
March 31, 200990
February 28, 200989
January 31, 200995
December 31, 200895
November 30, 200895
September 30, 200897
August 31, 200897
July 31, 200897
June 30, 200897
May 31, 200897
April 30, 200897
March 31, 200898
February 29, 200898
January 31, 200898

Insider ownership (%)

This is the historical insider ownership of Western Digital Corp. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.

Date Insider Ownership
December 31, 20141
November 30, 20141
October 31, 20141
September 30, 20141
August 31, 20141
July 31, 20141
June 30, 20141
May 31, 20141
March 31, 20141
February 28, 20141
January 31, 20141
December 31, 20131
November 30, 20131
October 31, 20131
September 30, 20131
August 31, 20131
July 31, 20131
June 30, 20131
May 31, 20131
April 30, 20131
March 31, 20131
January 31, 20131
November 30, 20121
October 31, 20121
September 30, 20121
August 31, 20121
July 31, 20121
June 30, 20121
May 31, 20121
April 30, 20121
March 31, 20121
February 29, 20121
January 31, 20121
December 31, 20111
November 30, 20111
October 31, 20111
September 30, 20111
August 31, 20111
July 31, 20111
June 30, 20111
May 31, 20111
April 30, 20111
March 31, 20111
February 28, 20111
January 31, 20111
December 31, 20101
November 30, 20101
October 31, 20101
September 30, 20101
August 31, 20101
July 31, 20101
June 30, 20101
May 31, 20101
April 30, 20101
March 31, 20101
February 28, 20101
January 31, 20101
December 31, 20091
November 30, 20091
October 31, 20091
September 30, 20091
August 31, 20091
July 31, 20091
June 30, 20091
May 31, 20091
April 30, 20091
March 31, 20091
February 28, 20091
January 31, 20091
December 31, 20081
November 30, 20081
October 31, 20081
September 30, 20081
August 31, 20081
July 31, 20081
June 30, 20081
May 31, 20081
September 30, 20071
August 31, 20071
July 31, 20071
June 30, 20071
May 31, 20071
April 30, 20071
March 31, 20071
February 28, 20071
January 31, 20071
December 31, 20061
November 30, 20061
October 31, 20061
September 30, 20061
June 30, 20061
May 31, 20061
April 30, 20062
March 31, 20062
February 28, 20062
January 31, 20062
December 31, 20051
November 30, 20051
October 31, 20052
September 30, 20051
August 31, 20051
July 31, 20051
June 30, 20051
May 31, 20051
April 30, 20051
March 31, 20051
February 28, 20051
January 31, 20051
December 31, 20041
September 30, 20041
August 31, 20041
July 31, 20041
June 30, 20041
May 31, 20041
April 30, 20041
March 31, 20041
February 29, 20041

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
John F. CoyneCEO729,6030.31%2012-12-19
Mr. Timothy M. LeydenCFO235,2250.1%2014-09-06
Stephen D. MilliganPresident & CEO138,208less than 0.1%2014-12-31
Joseph R. CarrilloPrincipal Accounting Officer92,786less than 0.1%2012-07-27
Mr. Michael D. CordanoPresident, HGST Subsidiary85,958less than 0.1%2015-01-12
Finkbeiner Martin W.EVP Operations75,123less than 0.1%2010-12-01
James D. MorrisEVP & GM, Storage Products68,325less than 0.1%2012-05-16
Raymond M. BukatySr VP, Admin, Gen Cnsl & Secty65,752less than 0.1%2010-09-12
Mr. James K. Welsh, IIIEVP & GM, Branded Products65,459less than 0.1%2012-08-03
David C. FetahN/A62,217less than 0.1%2004-01-01

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Vanguard Group, Inc.13,898,4362014-09-305.940.111,352,596,000
State Street Corp9,962,3262014-09-304.260.10969,530,000
BlackRock Fund Advisors7,064,7902014-09-303.020.10687,546,000
Alken Asset Management7,006,7662014-12-313.0228.06775,649,000
Alken Asset Management LLP6,487,7012014-09-302.7629.09628,787,000
Robeco Investment Management, Inc.6,002,0752014-09-302.560.95584,122,000
Wellington Management Company LLP5,350,3222014-09-302.290.14520,694,000
T. Rowe Price Associates, Inc.5,286,0392014-09-302.260.11514,437,000
Alken Fund European Opportunities5,037,5862014-01-312.136.63434,087,260
LSV Asset Management4,584,3332014-09-301.960.98446,147,000

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