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Aehr Test Systems (AEHR) Ownership Data

Short Interest History (%)

This is the historical short interest of Aehr Test Systems, as measured by the Short Percentage Of Float.

Date Short Interest (%)Short Interest (Shares in Mil)
April 28, 20173.630.34
April 13, 20173.280.31
March 31, 20174.450.42
March 15, 20176.860.64
February 28, 20177.380.69
February 15, 20178.080.76
January 31, 20171.450.14
January 13, 20171.310.12
December 30, 20161.260.12
December 15, 20161.310.12
November 30, 20161.870.17
November 15, 20162.060.19
October 31, 20162.640.25
October 14, 20161.210.11
September 30, 20161.010.09
September 15, 20160.150.01
August 31, 20160.40.04
August 15, 20160.180.02
July 29, 20160.20.02
July 15, 20160.160.01
June 30, 20160.340.03
June 15, 20160.560.05
May 31, 20160.280.03
May 13, 20160.150.01
April 29, 20160.110.01
April 15, 20160.160.01
March 31, 20160.170.02
March 15, 20160.20.02
February 29, 20160.180.02
February 12, 20160.110.01
January 29, 20160.10.01
January 15, 20160.130.01
December 31, 20150.160.01
December 15, 20150.170.02
November 30, 20150.170.02
November 13, 20150.310.03
October 30, 20150.250.02
October 15, 20150.170.02
September 30, 20150.20.02
September 15, 20150.160.01
August 31, 20150.220.02
August 14, 20150.320.03
July 31, 20150.280.02
July 15, 20150.150.01
June 30, 20150.190.02
June 15, 20150.130.01
May 29, 20150.190.02
May 15, 20150.370.03
April 30, 20150.160.01
April 15, 20150.10.01
March 31, 20150.20.02
March 13, 20150.20.02
February 27, 20150.040.00
February 13, 20150.040.00
January 30, 20150.040.00
January 15, 20150.150.01
December 31, 20140.170.01
December 15, 20140.150.01
November 28, 20140.150.01
November 14, 20140.050.00
October 31, 20140.320.03
October 15, 20140.060.01
September 30, 20140.050.00
September 15, 20140.160.01
August 29, 20140.150.01
August 15, 20140.170.01
July 31, 20140.220.02
July 15, 20140.180.01
June 30, 20140.060.00
June 13, 20140.110.01
May 30, 20140.120.01
May 15, 20140.280.02
April 30, 20140.740.06
April 15, 20140.990.08
March 31, 20141.070.09
March 14, 20140.270.02
February 28, 20140.280.02
February 14, 20140.410.03
January 31, 20140.340.03
January 15, 20140.610.05
December 31, 20130.240.02
December 13, 20130.350.03
November 29, 20130.120.01
November 15, 20130.120.01
October 31, 20130.130.01
October 15, 20130.130.01
September 30, 20130.050.00
September 13, 20130.030.00
August 30, 20130.040.00
August 15, 20130.160.01
July 31, 20130.020.00
July 15, 20130.120.01
June 28, 20130.120.01
June 14, 20130.210.02
May 31, 20130.120.01
May 15, 20130.260.02
April 30, 20130.180.01
April 15, 20130.250.02
March 28, 20130.240.02
February 28, 20130.040.00
February 15, 20130.060.00
January 31, 20130.060.00
January 15, 20130.110.01
December 14, 20120.010.00
November 30, 20120.010.00
November 15, 20120.090.01
October 15, 20120.020.00
September 28, 20120.050.00
September 14, 20120.040.00
August 31, 20120.040.00
August 15, 20120.050.00
July 31, 20120.040.00
July 13, 20120.040.00
June 29, 20120.050.00
June 15, 20120.040.00
May 31, 20120.070.01
May 15, 20120.070.01
April 30, 20120.120.01
April 13, 20120.140.01
March 30, 20120.110.01
March 15, 20120.080.01
February 29, 20120.070.01
February 15, 20120.10.01
January 31, 20120.150.01
January 13, 20120.170.01
December 30, 20110.040.00
December 15, 20110.110.01
November 30, 20110.080.01
November 15, 20110.370.03
October 31, 20110.040.00
October 14, 20110.070.01
September 30, 20110.090.01
September 15, 20110.040.00
August 31, 20110.040.00
August 15, 20110.040.00
July 29, 20110.150.01
July 15, 20110.040.00
June 30, 20110.10.01
June 15, 20110.040.00
May 31, 20110.060.00
May 13, 20110.130.01
April 29, 20110.110.01
April 15, 20110.090.01
March 31, 20110.060.00
March 15, 20110.130.01
February 28, 20110.120.01
February 15, 20110.060.00
January 31, 20110.070.01
January 14, 20110.060.00
December 31, 20100.10.01
December 15, 20100.150.01
November 30, 20100.040.00
November 15, 20100.060.00
October 29, 20100.090.01
October 15, 20100.060.00
September 30, 20100.050.00
September 15, 20100.090.01
August 31, 20100.050.00
August 13, 20100.060.00
July 30, 20100.040.00
July 15, 20100.110.01
June 30, 20100.090.01
June 15, 20100.090.01
May 28, 20100.110.01
May 14, 20100.110.01
April 30, 20100.090.01
April 15, 20100.130.01
March 31, 20100.30.02
March 15, 20100.240.02
February 26, 20100.290.02
February 12, 20100.230.02
January 29, 20100.30.02
January 15, 20100.030.00
December 31, 20090.020.00
December 15, 20090.020.00
November 30, 20090.010.00
November 13, 20090.050.00
October 30, 20090.040.00
October 15, 20090.070.00
September 30, 20090.050.00
September 15, 20090.050.00
August 31, 20090.030.00

Institutional Ownership History (%)

This the Institutional Ownership History of Aehr Test SystemsPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
March 31, 201717.953.81
December 31, 201620.673.44
September 30, 20169.561.56
June 30, 20162.240.30
March 31, 20162.40.33
December 31, 20155.520.73
September 30, 201510.931.60
June 30, 201525.233.17
March 31, 201513.961.78
December 31, 201414.651.86
September 30, 20149.141.05
June 30, 20148.360.94
March 31, 20148.210.91
December 31, 20135.790.64
September 30, 20134.990.54
June 30, 20132.690.29
March 31, 20132.70.28
December 31, 20123.050.29
September 30, 20123.180.29
June 30, 20123.240.30
March 31, 20123.430.31
December 31, 20118.610.78
September 30, 201112.591.14
June 30, 201112.981.15
March 31, 201113.491.19
December 31, 201015.081.33
September 30, 201014.871.27
June 30, 201015.871.37
March 31, 201015.571.33
December 31, 200914.741.27
September 30, 200914.091.18
June 30, 200913.61.15
March 31, 200916.441.39
December 31, 200828.262.33
September 30, 200828.682.34
June 30, 200828.882.43
March 31, 200845.53.71
September 30, 200742.883.36
June 30, 200742.613.36
March 31, 200746.23.60
December 31, 200647.663.70
September 30, 200644.213.43
June 30, 200641.813.19
March 31, 200638.12.88
December 31, 200541.893.14
September 30, 200547.813.58
June 30, 200550.163.75
March 31, 200550.413.76
December 31, 200451.513.82
September 30, 200453.23.94
June 30, 200453.343.96
March 31, 200453.893.98
December 31, 200352.923.80
September 30, 200352.873.80
June 30, 200360.593.82
March 31, 200353.363.82
December 31, 200253.543.82
September 30, 200251.913.82
June 30, 200257.883.98
March 31, 200251.363.74
December 31, 200151.283.71
September 30, 200151.643.72
June 30, 200152.133.71
March 31, 200151.783.70
December 31, 200048.193.44
September 30, 200048.223.38
June 30, 200048.173.32
March 31, 200049.013.34

Insider ownership (%)

This is the historical insider ownership of Aehr Test Systems. 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)
April 30, 20176.071.02
March 31, 20176.091.01
February 28, 20176.141.02
January 31, 20176.371.04
December 31, 20166.371.04
November 30, 20166.371.04
October 31, 20169.281.24
September 30, 20169.331.24
August 31, 20169.311.23
July 31, 20168.551.12
June 30, 20168.41.11
May 31, 20168.41.11
April 30, 20168.41.11
March 31, 20168.361.10
February 29, 20168.361.10
January 31, 20168.471.10
December 31, 20158.361.10
November 30, 20158.361.10
October 31, 20158.471.10
September 30, 20159.281.21
August 31, 20159.461.20
July 31, 20159.551.21
June 30, 20159.581.22
May 31, 20159.381.19
April 30, 20159.971.27
March 31, 2015101.27
February 28, 2015101.27
January 31, 2015101.27
December 31, 20148.080.93
November 30, 20149.911.14
October 31, 20149.341.07
September 30, 20149.321.07
August 31, 20149.231.06
July 31, 20149.591.06
June 30, 20149.31.03
May 31, 20149.121.01
March 31, 201410.460.93
February 28, 201410.430.93
January 31, 201410.430.93
December 31, 201310.40.93
November 30, 201310.40.93
October 31, 201310.40.93
September 30, 201310.180.91
August 31, 201310.080.90
July 31, 201310.080.90
June 30, 20139.60.86
May 31, 20139.60.86
April 30, 20139.60.86
March 31, 20139.60.86
January 31, 201318.561.66
November 30, 201218.561.66
October 31, 201218.561.66
September 30, 201218.411.64
August 31, 201218.311.64
July 31, 201218.311.64
June 30, 201217.061.52
May 31, 201217.061.52
April 30, 201217.061.52
March 31, 201216.781.50
February 29, 201216.611.48
January 31, 201216.611.48
December 31, 201115.151.35
November 30, 201115.151.35
October 31, 201115.151.35
September 30, 201115.151.35
August 31, 201114.871.33
July 31, 201115.11.33
June 30, 201115.111.33
May 31, 201115.111.33
April 30, 201115.111.33
March 31, 201115.121.33
February 28, 201115.051.33
January 31, 201115.051.33
December 31, 201015.311.33
November 30, 201015.311.33
October 31, 201015.311.33
September 30, 201015.331.33
August 31, 201015.261.32
July 31, 201015.371.32
June 30, 201015.371.32
May 31, 201015.371.32
April 30, 201015.371.32
March 31, 201015.071.30
February 28, 201015.071.30
January 31, 201015.071.30
December 31, 200914.891.27
November 30, 200914.891.27
October 31, 200914.891.27
September 30, 200914.661.25
August 31, 200914.631.24
July 31, 200914.631.24
June 30, 200914.541.23
May 31, 200914.541.23
April 30, 200914.621.23
March 31, 200914.381.21
February 28, 200914.381.21
January 31, 200914.381.21
December 31, 200814.461.21
November 30, 200814.461.21
October 31, 200814.461.21
September 30, 200814.131.19
August 31, 200814.191.19
July 31, 200814.691.20
June 30, 200814.731.20
May 31, 200814.781.20
April 30, 200817.661.44
March 31, 200818.051.44
February 29, 200818.341.47
January 31, 200818.121.45
December 31, 200718.171.45
November 30, 200718.571.46
October 31, 200718.571.46
September 30, 200718.581.46
August 31, 200718.371.44
July 31, 200717.581.38
June 30, 200717.611.38
May 31, 200717.71.38
April 30, 200717.71.38
March 31, 200717.71.38
February 28, 200717.711.38
January 31, 200717.761.38
December 31, 200617.781.38
November 30, 200617.781.38
October 31, 200617.781.38
September 30, 200617.781.38
June 30, 200618.111.38
May 31, 200618.361.39
April 30, 200618.361.39
March 31, 200618.361.39
February 28, 200618.591.40
January 31, 200618.591.40
December 31, 200518.991.43
November 30, 200519.11.43
October 31, 200519.11.43
September 30, 200519.11.43
August 31, 200519.11.43
July 31, 200518.131.36
June 30, 200518.131.36
May 31, 200518.061.34
April 30, 200518.061.34
March 31, 200518.061.34
February 28, 200518.111.34
January 31, 200518.011.34
December 31, 200418.011.34
November 30, 200418.461.37
October 31, 200418.461.37
September 30, 200418.461.37
August 31, 200418.481.37
July 31, 200417.941.33
June 30, 200417.951.33
May 31, 200417.931.33
April 30, 200417.931.33
March 31, 200418.441.33
February 29, 200418.311.32

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Gayn EricksonPresident & C.E.O323,6631.53%2017-02-21
Robert R. AndersonN/A245,6821.16%2015-08-17
Gary L. LarsonN/A142,7630.67%2015-08-14
Mr. Howard T. SlayenN/A123,3930.58%2017-01-24
Rhea J. PosedelDirector45,9670.22%2016-11-01
Mr. Kenneth B. SpinkN/A24,4870.12%2016-08-11
Mr. Mukesh PatelN/A23,9290.11%2014-11-24
Mr. John M. SchneiderDirector17,113less than 0.1%2017-02-13
Dr. William W. R. ElderDirector15,759less than 0.1%2017-01-24
David S. HendricksonVP OF ENGINEERING15,663less than 0.1%2017-03-07

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
Renaissance Technologies Corp Premium75,1002016-12-310.45N/A181
Minerva Advisors LLC   Premium Plus50,6132016-12-310.300.07122
Raymond James Finl Svs Advisors, Inc.   Premium Plus155,9712016-12-310.94N/A376
Vanguard Group Inc   Premium Plus127,3032016-12-310.77N/A307
BlackRock Fund Advisors   Premium Plus4,0112016-12-310.02N/A10
Morgan Stanley Smith Barney LLC   Premium Plus19,6692016-09-300.12N/A63
Geode Capital Management, LLC   Premium Plus82,2922016-12-310.49N/A198
Awm Investment Company Inc   Premium Plus1,050,0002016-12-316.310.502,530
UBS Securities LLC   Premium Plus1,9762016-12-310.01N/A5
WESTERLY CAPITAL MANAGEMENT LLC   Premium Plus520,5672015-12-313.95N/A979
Deutsche Bank AG   Premium Plus20,0572016-12-310.12N/A48
Vanguard Total Stock Mkt Idx94,6152017-01-310.57N/A223
Fidelity Spartan® Extended Mkt Indx Fd79,1662017-01-310.48N/A187
Vanguard Extended Market Index Fund25,8882017-01-310.16N/A61
Guggenheim Funds Investment Advisors LLC7,0342017-03-130.040.1335
Wilshire Micro-Cap ETF7,0342017-03-130.040.1335
The Vanguard - Total Stk Mkt Idx Trust. CF5,2002017-01-310.03N/A12
iShares Core S&P Total US Stock Mkt4,8392017-03-130.03N/A24
Fidelity Spartan® Total Market Idx Fund3,1262017-01-310.02N/A7
Vanguard Balanced Index Fund2,5002017-01-310.02N/A6

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