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Seagate Technology PLC (STX) Ownership Data

Short Interest History (%)

This is the historical short interest of Seagate Technology PLC, as measured by the Short Percentage Of Float.

Date Short Interest (%)Short Interest (Shares in Mil)
October 31, 201720.9640.32
October 13, 201721.9342.18
September 29, 201721.1740.72
September 15, 201721.9342.17
August 31, 201723.4745.14
August 15, 201719.8744.72
July 31, 201717.4639.29
July 14, 201716.236.45
June 30, 201715.2334.27
June 15, 201714.2932.15
May 31, 201713.1629.60
May 15, 201711.9826.96
April 28, 201710.4823.59
April 13, 201711.5525.99
March 31, 201712.4127.91
March 15, 201713.1129.51
February 28, 201713.8731.22
February 15, 201715.0133.78
January 31, 201717.5639.52
January 13, 201715.6635.24
December 30, 201615.735.33
December 15, 201616.4437.00
November 30, 201617.0838.43
November 15, 201617.1438.57
October 31, 201616.7137.61
October 14, 201614.5832.81
September 30, 201614.3632.30
September 15, 201614.4532.51
August 15, 201613.6535.60
July 29, 201611.9131.06
July 15, 201610.7928.14
June 30, 201612.833.37
June 15, 201612.2732.00
May 31, 201611.6630.42
May 13, 201611.6130.28
April 29, 201611.8130.79
April 15, 201614.5938.05
March 31, 201614.136.78
March 15, 201612.6132.90
February 29, 201611.3229.53
February 12, 201611.6630.42
January 29, 201611.8931.01
January 15, 201611.2729.39
December 31, 201510.8128.20
December 15, 201511.1729.12
November 30, 201510.3126.88
November 13, 201511.530.00
October 30, 201511.5630.14
October 15, 201512.1931.79
September 30, 201512.6733.06
September 15, 201513.5935.43
August 31, 201514.2937.26
August 14, 201510.9235.32
July 31, 201510.8134.97
July 15, 20159.4730.64
June 30, 20159.3430.20
June 15, 20159.5430.87
May 29, 20159.3830.35
May 15, 20158.4627.36
April 30, 20158.3827.12
April 15, 20157.9625.76
March 31, 20157.4824.19
March 13, 20156.9422.46
February 27, 20155.4617.68
February 13, 20155.0716.41
January 30, 20154.6415.01
January 15, 20154.3914.21
December 31, 20144.2913.88
December 15, 20144.6515.03
November 28, 20145.0216.24
November 14, 20145.2817.08
October 31, 20145.6318.22
October 15, 20146.1119.75
September 30, 20146.0619.59
September 15, 20145.8418.90
August 29, 20145.6818.38
August 15, 20146.0918.80
July 31, 20146.2719.36
July 15, 20146.0318.62
June 30, 20146.2319.24
June 13, 20146.5320.18
May 30, 20146.3719.67
May 15, 20146.1118.88
April 30, 20145.2716.28
April 15, 20145.3216.42
March 31, 20145.1715.98
March 14, 20144.9115.15
February 28, 20144.5313.98
February 14, 20144.4913.87
January 31, 20144.2313.07
January 15, 20144.5714.12
December 31, 20134.6714.43
December 13, 20135.7617.79
November 29, 20135.9418.33
November 15, 20136.0818.77
October 31, 20136.3719.67
October 15, 20135.8618.09
September 30, 20135.4316.76
September 13, 20134.8214.88
August 30, 20134.4915.40
August 15, 20134.9416.92
July 31, 20135.4418.64
July 15, 20134.8316.56
June 28, 20135.0117.18
June 14, 20135.8219.97
May 31, 20136.1621.12
May 15, 20135.9820.50
April 30, 20138.6629.69
April 15, 20138.4228.88
March 28, 20138.5429.30
March 15, 20139.2331.65
February 28, 20139.0531.02
February 15, 20139.7333.37
January 31, 201310.5936.31
January 15, 201312.1741.74
December 31, 201213.0944.88
December 14, 201214.1548.52
November 30, 201213.1845.19
November 15, 201210.6336.46
October 31, 20129.0531.05
October 15, 20127.6326.17
September 28, 20127.1224.42
September 14, 20126.4822.20
August 31, 20127.1325.19
August 15, 20126.6523.46
July 31, 20127.3525.93
July 13, 20128.730.70
June 29, 20125.8720.74
June 15, 20125.0517.82
May 31, 20125.6619.99
May 15, 20125.2518.52
April 30, 20123.3711.89
April 13, 20122.89.90
March 30, 20122.157.58
March 15, 20122.378.36
February 29, 20122.398.43
February 15, 20122.267.98
January 31, 20122.9910.55
January 13, 20123.7213.12
December 30, 20112.538.92
December 15, 20113.0210.65
November 30, 20113.1211.03
November 15, 20113.5612.55
October 31, 20114.3415.32
October 14, 20113.5712.62
September 30, 20113.913.76
September 15, 20113.9814.06
August 31, 20113.8715.17
August 15, 20113.3313.04
July 29, 20113.9115.29
July 15, 20113.0211.82
June 30, 20112.39.00
June 15, 20114.0415.80
May 31, 20113.3413.08
May 13, 20113.3613.15
April 29, 20114.8118.83
April 15, 20114.5617.86
March 31, 20113.1612.39
March 15, 20113.5914.06
February 28, 20112.319.05
February 15, 20112.8811.26
January 31, 20112.258.80
January 14, 20112.499.73
December 31, 20102.489.71
December 15, 20102.559.98
November 30, 20102.7110.59
November 15, 20104.216.46
October 29, 20104.517.62
October 15, 20103.9315.37
September 30, 20103.8515.08
September 15, 20103.7515.29
August 31, 20102.8411.58
August 13, 20103.9416.07
July 30, 20105.0320.52
July 15, 20105.2221.27
June 30, 20106.1124.92
June 15, 20106.4326.23
May 28, 20106.2125.32
May 14, 20105.6322.97
April 30, 20105.4822.34
April 15, 20106.426.11
March 31, 20106.7527.51
March 15, 20106.8227.79
February 26, 20105.8624.10
February 12, 20104.6319.05
January 29, 20104.1116.93
January 15, 20104.1517.06
December 31, 20094.2217.36
December 15, 20094.8119.79
November 30, 20096.0324.81
November 13, 20096.2925.89
October 30, 20096.5226.81
October 15, 20095.4722.52
September 30, 20094.0816.79
September 15, 20093.9416.23

Institutional Ownership History (%)

This the Institutional Ownership History of Seagate Technology PLCPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
September 30, 201797.17281.70
June 30, 201792.97271.26
March 31, 201790.23267.94
December 31, 201693.41275.74
September 30, 201695.81286.18
June 30, 201693.07278.42
March 31, 201698.54292.20
December 31, 201596.64287.92
March 31, 201593.87308.08
December 31, 201494.07307.84
September 30, 201494.58308.37
June 30, 201495.29311.19
March 31, 201492.18301.01
December 31, 201395.24312.82
September 30, 201383297.85
June 30, 201381.97294.63
March 31, 201384.91303.87
December 31, 201288.05315.74
September 30, 201281.16312.64
June 30, 201278.3310.10
March 31, 201277.37335.23
December 31, 201188.35412.27
September 30, 201185.44358.76
June 30, 201184.3362.60
March 31, 201179.53360.37
December 31, 201085.17386.13
September 30, 201082.36388.55
June 30, 20108.1139.45
March 31, 20101.246.07
December 31, 20092.7813.71
September 30, 20090.824.08
June 30, 20091.115.46
March 31, 20091.055.17
December 31, 20081.014.92
September 30, 20080.994.84
June 30, 20080.271.31
March 31, 20080.020.09
December 31, 20070.050.34
June 30, 20070.020.08
September 30, 20060.030.34
September 30, 20040.120.54
March 31, 20040.170.77
December 31, 20030.150.66
September 30, 20030.210.93
June 30, 20030.120.53
March 31, 20030.060.27
December 31, 200217.475.44
December 31, 20004.8215.05

Insider ownership (%)

This is the historical insider ownership of Seagate Technology PLC. 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 (%)Insider Ownership (Shares in Mil)
October 31, 20172.246.54
September 30, 20172.246.54
August 31, 20172.246.53
July 31, 20172.246.53
June 30, 20172.156.38
May 31, 20172.176.43
April 30, 20172.186.43
March 31, 20172.086.14
February 28, 20172.086.14
January 31, 20172.096.14
December 31, 20162.066.14
November 30, 20162.066.15
October 31, 20162.066.15
September 30, 20162.056.13
August 31, 20162.056.13
July 31, 20162.056.13
June 30, 20162.056.13
May 31, 20162.056.13
April 30, 20162.076.13
March 31, 20162.076.13
February 29, 20162.076.13
January 31, 20162.056.13
December 31, 20152.076.13
November 30, 20152.056.13
October 31, 20152.056.13
September 30, 20152.156.50
August 31, 20152.016.37
July 31, 20152.016.37
June 30, 20151.976.26
May 31, 20151.976.26
April 30, 20151.976.26
March 31, 20151.926.29
February 28, 20151.926.31
January 31, 20151.926.31
December 31, 20141.996.50
November 30, 20141.956.36
October 31, 20142.046.68
September 30, 20142.27.19
August 31, 20141.946.32
July 31, 20141.946.32
June 30, 20141.876.10
May 31, 20141.876.10
March 31, 20141.456.08
February 28, 20141.456.08
January 31, 20141.556.50
December 31, 20131.556.50
November 30, 20131.556.50
October 31, 20131.556.52
September 30, 20131.596.66
August 31, 20131.476.17
July 31, 20131.476.17
June 30, 20131.546.44
May 31, 20131.536.40
April 30, 20131.536.41
March 31, 20131.546.44
January 31, 20131.546.45
November 30, 20121.546.45
October 31, 20121.546.46
September 30, 20121.526.38
August 31, 20121.626.81
July 31, 20121.56.27
June 30, 20121.446.03
May 31, 20121.446.03
April 30, 20121.476.15
March 31, 20121.496.24
February 29, 20121.496.24
January 31, 20121.496.23
December 31, 20111.496.24
November 30, 20111.496.24
October 31, 20111.566.52
September 30, 20111.425.95
August 31, 20111.425.94
July 31, 20111.345.75
June 30, 20111.345.75
May 31, 20111.345.75
April 30, 20111.345.75
March 31, 20111.295.83
February 28, 20111.315.91
January 31, 20111.315.91
December 31, 20101.235.83
November 30, 20101.235.83
October 31, 20101.265.94
September 30, 20101.265.94
August 31, 20101.265.94
July 31, 20101.225.95
June 30, 20101.225.95
May 31, 20101.225.95
April 30, 20101.225.95
March 31, 20101.25.97
February 28, 20101.216.02
January 31, 20101.216.02
December 31, 20091.216.02
November 30, 20091.216.02
October 31, 20091.256.23
September 30, 20091.276.30
August 31, 20091.276.30
July 31, 20091.286.30
June 30, 20091.286.30
May 31, 20091.286.30
April 30, 20091.286.30
March 31, 20091.286.30
February 28, 20091.286.27
January 31, 20091.286.25
December 31, 20081.256.10
November 30, 20081.256.10
October 31, 20081.256.10
September 30, 20081.256.10
August 31, 20081.236.00
July 31, 20081.346.49
June 30, 20081.346.49
May 31, 20081.346.49
April 30, 20082.7613.40
March 31, 20082.5513.44
February 29, 20082.5413.39
January 31, 20082.5413.39
December 31, 20072.5413.39
November 30, 20072.5213.39
October 31, 20072.5713.66
September 30, 20072.6514.00
August 31, 20072.9115.40
July 31, 20072.6614.22
June 30, 20072.6514.43
May 31, 20072.6714.50
April 30, 20072.6714.53
March 31, 20072.6714.63
February 28, 20072.6514.52
January 31, 20072.5414.58
December 31, 20062.5914.88
November 30, 20062.6615.29
October 31, 20062.6815.36
September 30, 20062.8116.28
June 30, 20060.683.34
May 31, 20060.683.34
April 30, 20060.683.33
March 31, 20060.653.22
February 28, 20060.663.22
January 31, 20060.663.22
December 31, 20050.562.70
November 30, 20050.673.25
October 31, 20050.683.25
September 30, 20050.683.25
August 31, 20050.492.33
July 31, 20050.210.99
June 30, 20050.251.17
May 31, 20050.251.17
April 30, 20050.251.17
March 31, 20050.251.16
February 28, 20050.251.16
January 31, 20050.251.17
December 31, 20040.221.03
November 30, 20040.20.91
October 31, 20040.170.79
September 30, 20040.170.79
August 31, 20040.170.79
July 31, 20040.170.79
June 30, 20040.150.68
May 31, 20040.150.68
April 30, 20040.150.68
March 31, 20040.160.70
February 29, 20040.160.70

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
David F. MarquardtN/A1,196,6520.41%2009-11-30
Mark H. KryderN/A886,1240.31%2007-05-01
William L. HudsonN/A875,6920.3%2008-06-27
Mr. William D. WatkinsN/A806,9990.28%2009-01-30
Mr. Brian S. DexheimerN/A508,3310.18%2008-09-12
James M. Chirico,JrN/A392,5710.14%2007-07-24
Andrew S. RappaportN/A340,7480.12%2006-06-30
David A. WickershamN/A194,857less than 0.1%2008-09-12
Mr. Kenneth M. MassaroniSVP, Interim CLO158,069less than 0.1%2015-07-21
Mr. William David MosleyPresident & COO152,965less than 0.1%2017-02-24

Top Fund Holders

HolderSharesReport Date% of Total
Assets Managed
% of Shares
Outstanding
Market Value($1000)
FMR LLC   Premium Plus31,958,3172017-09-300.13%N/A1,060,057
VANGUARD GROUP INC   Premium Plus31,858,2902017-09-300.05%N/A1,056,739
Clearbridge Investments, LLC   Premium Plus29,326,9582017-09-300.94%N/A972,775
Jeff Ubben Premium21,458,6002017-09-307.13%N/A711,782
BlackRock Inc.   Premium Plus18,387,4562017-09-300.03%N/A609,912
STATE STREET CORP   Premium Plus10,695,4132017-09-300.03%N/A354,762
LSV ASSET MANAGEMENT   Premium Plus6,555,8292017-09-300.36%N/A217,456
TWO SIGMA ADVISERS, LLC   Premium Plus5,086,1752017-09-300.48%N/A168,708
GOLDMAN SACHS GROUP INC   Premium Plus3,996,6162017-09-300.03%N/A132,566
AQR CAPITAL MANAGEMENT LLC   Premium Plus3,909,1662017-09-300.16%N/A129,667
APG All Pensions Group NV   Premium Plus3,392,3702017-09-300.19%N/A112,525
Epoch Investment Partners, Inc.   Premium Plus3,310,3712017-09-300.37%N/A109,806
NORTHERN TRUST CORP   Premium Plus3,244,9072017-09-300.03%N/A107,633
GEODE CAPITAL MANAGEMENT, LLC   Premium Plus3,214,6582017-09-300.04%N/A106,440
Richard Pzena Premium3,138,4862017-09-300.55%N/A104,104
Bank of New York Mellon Corp   Premium Plus2,896,1182017-09-300.03%N/A96,064
TWO SIGMA INVESTMENTS LLC   Premium Plus2,511,5262017-09-300.30%N/A83,307
DISCIPLINED GROWTH INVESTORS INC /MN   Premium Plus2,429,6702017-09-301.69%N/A80,592
DEUTSCHE BANK AG\   Premium Plus2,276,8092017-09-300.05%N/A75,517
LEVIN CAPITAL STRATEGIES, L.P.   Premium Plus2,177,5282017-09-301.22%N/A72,229

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