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Accuray Inc (ARAY) Ownership Data

Short Interest History (%)

This is the historical short interest of Accuray Inc, as measured by the Short Percentage Of Float.

Date Short Interest (%)Short Interest (Shares in Mil)
March 31, 20179.167.35
March 15, 20178.396.73
February 28, 20177.986.40
February 15, 20178.36.66
January 31, 20178.226.59
January 13, 20177.846.29
December 30, 20168.256.62
December 15, 20169.457.58
November 30, 20169.677.75
November 15, 201610.058.05
October 31, 20169.797.85
October 14, 201610.198.17
September 30, 201610.238.20
September 15, 201611.118.91
August 31, 201611.459.18
August 15, 201613.769.60
July 29, 201615.6210.90
July 15, 201614.139.86
June 30, 201613.899.69
June 15, 201615.3210.69
May 31, 201613.679.54
May 13, 201614.099.83
April 29, 201614.279.96
April 15, 201616.7411.68
March 31, 201614.7110.26
March 15, 201614.8710.37
February 29, 201614.9710.45
February 12, 201616.1611.27
January 29, 201615.6710.93
January 15, 201616.4711.49
December 31, 201517.2212.01
December 15, 20151711.86
November 30, 201517.2212.01
November 13, 201517.2712.05
October 30, 20151711.86
October 15, 201517.0211.87
September 30, 201518.2612.74
September 15, 201516.1112.84
August 31, 201522.9613.19
August 14, 201522.8113.11
July 31, 201523.2513.36
July 15, 201523.8413.69
June 30, 201523.7913.67
June 15, 201522.5212.94
May 29, 201522.612.98
May 15, 201523.7513.64
April 30, 201524.0613.82
April 15, 201525.4114.60
March 31, 201526.2815.10
March 13, 201526.3115.12
February 27, 201525.9514.91
February 13, 201525.4214.60
January 30, 201526.6715.32
January 15, 201527.2115.63
December 31, 201427.7915.96
December 15, 201428.1316.16
November 28, 201426.615.28
November 14, 201426.0214.95
October 31, 201425.6414.73
October 15, 201426.2315.07
September 30, 201430.6117.59
September 15, 201425.2214.49
August 29, 201425.614.22
August 15, 201426.6514.80
July 31, 201427.1215.06
July 15, 201430.5816.98
June 30, 201425.2814.04
June 13, 201424.7313.73
May 30, 201425.1113.94
May 15, 201426.8114.89
April 30, 201428.1215.61
April 15, 201431.4317.45
March 31, 201430.9917.21
March 14, 201430.0816.71
February 28, 201431.8417.68
February 14, 201434.2719.03
January 31, 201437.5920.87
January 15, 201436.8820.48
December 31, 201333.3118.50
December 13, 201333.6318.67
November 29, 201332.7118.17
November 15, 201330.3516.85
October 31, 201329.3616.30
October 15, 201329.2116.22
September 30, 201330.9817.20
September 13, 201323.4317.50
August 30, 201323.817.78
August 15, 201323.217.30
July 31, 201330.7716.95
July 15, 201329.1816.07
June 28, 201328.115.47
June 14, 201324.5913.54
May 31, 201324.5413.51
May 15, 201324.0313.23
April 30, 201327.0214.88
April 15, 201323.8513.13
March 28, 201324.7813.65
March 15, 201322.3312.30
February 28, 201317.989.90
February 15, 201314.628.05
January 31, 20139.475.21
January 15, 20139.455.20
December 31, 20129.555.26
December 14, 201210.065.54
November 30, 201210.625.85
November 15, 201210.895.99
October 31, 20129.685.33
October 15, 201210.755.92
September 28, 201210.445.75
September 14, 20129.875.43
August 31, 201211.366.26
August 15, 201212.546.90
July 31, 201212.967.14
July 13, 201212.028.31
June 29, 201212.398.56
June 15, 201211.167.72
May 31, 201210.277.10
May 15, 20129.746.74
April 30, 201210.837.49
April 13, 20129.936.86
March 30, 201210.237.07
March 15, 201210.237.07
February 29, 201210.066.96
February 15, 20129.866.82
January 31, 20129.026.23
January 13, 20128.786.07
December 30, 20118.866.12
December 15, 20119.096.28
November 30, 20119.256.39
November 15, 20118.265.71
October 31, 20118.485.86
October 14, 20118.776.06
September 30, 20118.696.01
September 15, 20118.315.75
August 31, 20117.525.20
August 15, 20117.435.13
July 29, 20115.023.47
July 15, 20117.623.44
June 30, 20118.563.87
June 15, 20119.434.26
May 31, 20119.914.48
May 13, 20119.34.20
April 29, 20118.533.85
April 15, 20118.854.00
March 31, 20117.823.53
March 15, 20116.422.90
February 28, 20114.041.82
February 15, 20114.261.92
January 31, 20113.841.74
January 14, 20114.061.83
December 31, 20103.611.63
December 15, 20103.991.80
November 30, 20104.321.95
November 15, 20104.181.89
October 29, 20104.021.81
October 15, 20104.652.10
September 30, 20105.12.30
September 15, 20105.592.53
August 31, 20108.894.02
August 13, 20108.423.80
July 30, 20107.963.59
July 15, 20108.243.48
June 30, 20109.453.98
June 15, 20107.533.18
May 28, 20107.713.25
May 14, 20108.563.61
April 30, 20108.943.77
April 15, 20108.143.43
March 31, 20107.93.33
March 15, 20107.743.27
February 26, 20108.073.40
February 12, 20108.133.43
January 29, 20107.563.19
January 15, 20107.333.09
December 31, 20096.62.78
December 15, 20096.552.76
November 30, 20096.742.84
November 13, 20096.412.70
October 30, 20096.242.63
October 15, 20096.582.77
September 30, 20096.742.84
September 15, 20096.642.80
August 31, 20097.213.04
August 14, 20097.933.34
July 31, 20097.653.22
July 15, 20096.573.72
June 30, 20095.753.26
June 15, 20096.043.39
May 29, 20096.143.44
May 15, 20096.833.83
April 30, 20096.143.42
April 15, 20097.013.90
March 31, 20097.153.98
March 13, 20096.933.85
February 27, 20097.063.93
February 13, 20097.083.94
January 30, 20097.143.97
January 15, 20096.73.82
December 31, 20085.713.25
December 15, 20086.013.34
November 28, 20086.533.58
November 14, 20087.223.96
October 31, 20087.13.89
October 15, 20087.84.28
September 30, 20088.334.57
September 15, 20089.385.12
August 29, 200810.245.59
August 15, 200811.816.44
July 31, 200813.037.11
July 15, 200815.118.25
June 30, 200813.097.15
June 13, 200812.636.79
May 30, 200812.96.94
May 15, 200812.176.55
April 30, 200810.575.68
April 15, 20089.565.14
March 31, 20089.95.33
March 14, 20089.255.10
February 29, 20088.24.52
February 15, 20088.724.80
January 31, 20088.924.91
January 15, 20088.714.80
December 31, 20077.74.24
December 11, 20077.273.97
November 27, 20076.523.56
November 9, 20075.432.96
October 26, 200752.69
October 10, 20074.282.31
September 25, 20075.062.72
September 11, 20075.112.75
August 10, 20075.312.86
July 10, 20074.632.49
June 12, 20073.762.02
May 10, 20072.711.45
April 10, 20072.311.24
March 12, 20071.020.55
February 12, 20071.590.85

Institutional Ownership History (%)

This the Institutional Ownership History of Accuray IncPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
March 31, 201792.3376.56
December 31, 201690.9175.42
September 30, 201689.8373.39
June 30, 201690.7973.89
March 31, 201695.5777.35
December 31, 201598.8679.90
September 30, 201597.8977.40
June 30, 201597.177.17
December 31, 201279.7158.94
September 30, 201277.2155.72
June 30, 201279.7957.26
March 31, 201274.6153.17
December 31, 201171.7950.97
September 30, 201170.6949.72
June 30, 201168.0747.69
March 31, 201168.6641.28
December 31, 201067.6640.40
September 30, 20106337.08
June 30, 201059.6634.92
March 31, 201052.830.59
December 31, 200948.0427.72
September 30, 200943.625.03
June 30, 200955.7331.52
March 31, 200944.9525.01
December 31, 200836.5120.81
September 30, 200839.2221.50
June 30, 200833.4518.36
March 31, 200843.3723.68
December 31, 200739.1321.49
September 30, 200738.0620.40
June 30, 200740.0621.57
March 31, 200737.2420.03

Insider ownership (%)

This is the historical insider ownership of Accuray Inc. 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)
March 31, 20176.435.33
February 28, 20176.435.33
January 31, 20176.525.33
December 31, 20166.525.33
November 30, 20166.165.03
October 31, 20166.285.13
September 30, 20166.295.13
August 31, 20166.345.13
July 31, 20166.275.07
June 30, 20165.54.45
May 31, 20165.54.45
April 30, 20165.514.45
March 31, 20165.534.47
February 29, 20165.534.47
January 31, 20165.594.47
December 31, 20155.534.47
November 30, 20155.64.47
October 31, 20155.534.41
September 30, 20155.144.10
August 31, 20154.983.93
July 31, 20154.983.93
June 30, 20154.983.93
May 31, 20154.793.78
April 30, 20154.793.78
March 31, 20154.773.74
February 28, 20154.773.74
January 31, 20154.773.74
December 31, 20143.822.97
November 30, 20144.823.75
October 31, 20144.773.69
September 30, 20144.283.31
August 31, 20144.283.31
July 31, 20144.293.30
June 30, 20144.293.30
May 31, 20144.293.29
March 31, 20144.623.25
February 28, 20144.543.19
January 31, 20144.242.98
December 31, 20134.232.97
November 30, 20134.232.98
October 31, 20134.132.91
September 30, 20133.912.75
August 31, 20133.912.75
July 31, 20133.912.75
June 30, 20133.912.75
May 31, 20133.912.75
April 30, 20133.92.75
March 31, 20133.72.61
January 31, 20133.482.45
November 30, 20123.382.38
October 31, 20122.741.93
September 30, 20122.511.77
August 31, 20122.451.72
July 31, 20122.451.72
June 30, 20122.441.72
May 31, 20122.441.72
April 30, 20122.421.70
March 31, 20122.41.69
February 29, 20122.411.69
January 31, 20122.381.67
December 31, 20112.381.67
November 30, 20112.361.66
October 31, 20112.361.66
September 30, 20112.321.63
August 31, 20112.531.52
July 31, 20112.511.51
June 30, 20112.511.51
May 31, 20112.451.47
April 30, 20112.371.47
March 31, 20112.371.47
February 28, 20112.331.44
January 31, 20112.281.41
December 31, 20102.361.39
November 30, 20102.351.38
October 31, 20102.091.23
September 30, 20102.061.21
August 31, 20101.961.15
July 31, 20101.851.07
June 30, 20101.821.06
May 31, 20101.791.04
April 30, 20101.781.03
March 31, 20101.530.88
February 28, 20101.550.89
January 31, 20101.520.88
December 31, 20091.530.88
November 30, 20091.530.88
October 31, 20091.530.88
September 30, 20091.550.88
August 31, 20091.550.88
July 31, 20091.550.88
June 30, 20091.550.88
May 31, 20091.60.90
April 30, 20091.590.89
March 31, 20091.590.89
February 28, 20091.590.89
January 31, 20091.590.89
December 31, 20081.550.88
November 30, 20081.620.88
October 31, 20081.620.88
September 30, 20081.610.88
August 31, 20081.590.87
July 31, 20081.580.86
June 30, 20081.590.86
May 31, 20081.590.86
April 30, 200822.4412.21
March 31, 200822.1612.21
February 29, 200822.1412.20
January 31, 200822.1412.20
December 31, 200722.3512.20
November 30, 200722.3512.20
October 31, 200722.0512.04
September 30, 200722.3812.05
August 31, 200722.3812.05
July 31, 200722.412.05
June 30, 200721.911.78
May 31, 200721.8811.77
April 30, 200721.8811.77
March 31, 200722.0511.76
February 28, 200722.0511.76

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Joshua H. LevineN/A1,348,2101.63%2016-11-01
Mr. Wayne WuN/A579,1420.7%2010-11-30
Ms. Kelly LondyN/A369,4550.45%2016-11-01
Mr. Kevin WatersN/A284,7250.34%2016-11-01
Dr. Euan Stuart Thomson PhDN/A282,7190.34%2012-10-10
Mr. Chris A. RaanesN/A276,8370.33%2012-10-31
Gregory E. LichtwardtN/A220,5850.27%2015-07-08
Mr. Robert S. WeissN/A198,7980.24%2016-11-21
Ms. Alaleh NouriN/A178,0230.21%2016-11-01
Mr. Robert RagusaN/A144,3930.17%2013-10-31

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
PRIMECAP Management Company Premium7,493,6002016-09-309.170.0547,734
Renaissance Technologies Corp Premium4,286,7232016-09-305.250.0527,306
Partner Fund Management LP   Premium Plus4,220,2732016-09-305.170.7926,883
T. Rowe Price Associates, Inc.   Premium Plus2,884,5872016-09-303.53N/A18,375
Heartland Advisors Inc   Premium Plus3,571,8352016-12-314.310.9116,430
Neuberger Berman LLC   Premium Plus3,957,2872016-12-314.770.0218,204
Robeco Investment Management, Inc.   Premium Plus4,198,0902016-12-315.060.0319,311
LAPIDES ASSET MANAGEMENT, LLC   Premium Plus2,194,9002016-12-312.651.8110,097
Sectoral Asset Management Inc   Premium Plus1,854,6252016-09-302.271.1611,814
Vanguard Group Inc   Premium Plus5,907,7772016-09-307.23N/A37,633
BlackRock Fund Advisors   Premium Plus2,664,6822016-09-303.26N/A16,974
Oracle Investment Management Inc   Premium Plus2,482,7182016-09-303.042.4315,815
Wellington Management Company LLP   Premium Plus1,866,8442016-09-302.29N/A11,892
Peregrine Capital Management Inc   Premium Plus2,378,0882016-09-302.910.3915,148
Heartland Value Fund3,000,0002016-12-313.621.6413,800
PrimeCap Odyssey Growth Fund2,952,2002016-12-313.560.1913,580
Vanguard Small Cap Index1,754,9622016-12-312.120.018,073
T. Rowe Price Small-Cap Stock Fund1,675,7002016-12-312.020.087,708
PrimeCap Odyssey Aggressive Growth Fund1,650,6002016-12-311.990.117,593
Vanguard Total Stock Mkt Idx1,620,0102016-12-311.95N/A7,452

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