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Affymetrix Inc (AFFX)Ownership Data

Short Interest History (%)

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

Date Short Interest
February 13, 201515.31
January 30, 201516.77
January 15, 201516.33
December 31, 201417.83
December 15, 201419.05
November 28, 201418.89
November 14, 201419.76
October 31, 201419.7
October 15, 201419.89
September 30, 201419.92
September 15, 201418.97
August 29, 201418
August 15, 201417.15
July 31, 201417.11
July 15, 201416.9
June 30, 201416.28
June 13, 201418.94
May 30, 201418.61
May 15, 201419.89
April 30, 201418.46
April 15, 201417.03
March 31, 201412.27
March 14, 201412.23
February 28, 201417.61
February 14, 201418.19
January 31, 201417.91
January 15, 201416.91
December 31, 201317.6
December 13, 201318.17
November 29, 201318.2
November 15, 201314.07
October 31, 201315.99
October 15, 201316.52
September 30, 201315.58
September 13, 201316.43
August 30, 201315.5
August 15, 201314.03
July 31, 201316.28
July 15, 201319.25
June 28, 201317.25
June 14, 201317.54
May 31, 201317.61
May 15, 201318.74
April 30, 201319.13
April 15, 201318.22
March 28, 201319.99
March 15, 201319.41
February 28, 201316.24
February 15, 201315.86
January 31, 201315.77
January 15, 201317.52
December 31, 201217.61
December 14, 201218.46
November 30, 201219.83
November 15, 201219.33
October 31, 201219.16
October 15, 201218.99
September 28, 201217.44
September 14, 201217.91
August 31, 201218.05
August 15, 201217.01
July 31, 201217.32
July 13, 201216.79
June 29, 201214.58
June 15, 201211.59
May 31, 201210.94
May 15, 201210.05
April 30, 20127.56
April 13, 20127.47
March 30, 20127.51
March 15, 20128.13
February 29, 20127.46
February 15, 20128.03
January 31, 20128.93
January 13, 20128.69
December 30, 20118.64
December 15, 20119.72
November 30, 20119.51
November 15, 20118.94
October 31, 20118.11
October 14, 20118.58
September 30, 201112.55
September 15, 201112.95
August 31, 201112.26
August 15, 201111.61
July 29, 201112.65
July 15, 201112.02
June 30, 201112.27
June 15, 201112.5
May 31, 201114.43
May 13, 201114.73
April 29, 201115.22
April 15, 201115.17
March 31, 201114.73
March 15, 201114.78
February 28, 201116.1
February 15, 201116.35
January 31, 201116.53
January 14, 201115.72
December 31, 201015.42
December 15, 201015.25
November 30, 201015.37
November 15, 201013.27
October 29, 201012.88
October 15, 201012.83
September 30, 201012.3
September 15, 20109.11
August 31, 201010.48
August 13, 201010.56
July 30, 201010.89
July 15, 201010.44
June 30, 201013.09
June 15, 201014.71
May 28, 201017.51
May 14, 201019.21
April 30, 201015.56
April 15, 201015.08
March 31, 201015.33
March 15, 201015.11
February 26, 201012.55
February 12, 201012.19
January 29, 20109.34
January 15, 20107.82
December 31, 20097.42
December 15, 20097.98
November 30, 20097.22
November 13, 20095.51
October 30, 20095.21
October 15, 20095.52
September 30, 20095.11
September 15, 20095.14
August 31, 20094.96
August 14, 20095.77
July 31, 20096.14
July 15, 20096.74
June 30, 20096.16
June 15, 20096.6
May 29, 20097.42
May 15, 20097.17
April 30, 20097.75
April 15, 20097.69
March 31, 20098.76
March 13, 20098.88
February 27, 20096.23
February 13, 20097.23
January 30, 20097.21
January 15, 20098.51
December 31, 20088.15
December 15, 20089.02
November 28, 200810.17
November 14, 200810.62
October 31, 200812.69
October 15, 200815.17
September 30, 200816.48
September 15, 200824
August 29, 200823.8
August 15, 200825.74
July 31, 200827.66
July 15, 200822.94
June 30, 200819.15
June 13, 200819.2
May 30, 200816.77
May 15, 200817.72
April 30, 200819.99
April 15, 200817.73
March 31, 200819.61
March 14, 200821.48
February 29, 200821.74
February 15, 200821.93
January 31, 200819.56
January 15, 200817.66
December 31, 200716.35
December 11, 200716.09
November 27, 200716.23
November 9, 200716.16
October 26, 200715.51
October 10, 200717.3
September 25, 200718.09
September 11, 200718
August 10, 200720.59
July 10, 200723.34
June 12, 200722.36
May 10, 200719.95
April 10, 200720.69
March 12, 200721.4
February 12, 200724.75
January 9, 200722.5
December 12, 200623.37
November 10, 200622.23
October 10, 200620.25
September 12, 200618.76
August 10, 200618.42
July 11, 200617.36
June 12, 200613.73
May 10, 200612.83
April 10, 200611.33
March 10, 200614.63
February 10, 200612.65
January 10, 200614.31
December 12, 200510
November 10, 20059.28
October 11, 200510
September 12, 200510.08
August 10, 200510.59
July 12, 200512.37
June 10, 200511.2
May 10, 200513.53
April 12, 200515.67
March 10, 200516.19
February 10, 200517.9
January 11, 200517.65
December 10, 200419
November 10, 200416.31
October 12, 200416.8
September 10, 200414.14
August 10, 200413.49
July 12, 200416.02
June 9, 200415.39
May 11, 200416.22
April 12, 200417.21
March 10, 200417.54
February 10, 200416.14
January 12, 200416.6
December 10, 200316.27
November 11, 200315.76
October 10, 200314.49
September 10, 200312.7
August 12, 200310.7
July 10, 200310.01
June 10, 20038.38
May 12, 20038.78
April 10, 200311.43
March 11, 200314.38
February 11, 200314.95
January 10, 200313.02
December 10, 200211.4
November 12, 200212.11
October 10, 200210.71
September 10, 20029.93
August 12, 200211.23
July 10, 20029.38
June 11, 20029.81
May 10, 200210.45
April 10, 20028.37
March 12, 20026.52
February 12, 20027.42
January 10, 20027.5
December 11, 20017.16
November 12, 20017.43
October 10, 20016.21
September 5, 20017.15
August 10, 20016.12
July 10, 20016.64
June 12, 20016.65
May 10, 20016.48
April 9, 20015.08
March 12, 20015.84
February 12, 20015.8
January 9, 20016.04
December 12, 20006.55
November 10, 20007.85
October 10, 20009.72
September 12, 20009.23
August 10, 200019.41
July 11, 20008.08
June 12, 20007.44
May 10, 20008.41
April 11, 20008.49
March 10, 20007.35
February 10, 20007.09
January 11, 20006.14
December 10, 19994.57
November 10, 19994.63
October 12, 19994.34
September 10, 19993.46
August 10, 19993.18
July 12, 19993.41
June 10, 19993.37
May 11, 19993.7
April 12, 19992.97
March 10, 19993.35
February 9, 19994.27
January 8, 19994.71
December 8, 19985.85
November 6, 19986.06
October 8, 19986.61
September 8, 19987.1
August 7, 19987.39
July 8, 19987.73
June 8, 19986.59
May 8, 19986.06
April 7, 19985.42
March 6, 19985.3
February 6, 19984.88
January 8, 19983.85
December 8, 19972.9
November 7, 19972.92
October 8, 19972.99
September 8, 19974.04
August 8, 19973.89
July 8, 19973.77
June 6, 19972.92
May 8, 19973.95
April 8, 19972.37
March 7, 19970.86
February 7, 19970.16
January 8, 19970.32
December 6, 19960.23
November 8, 19960.22
October 8, 19960.07
September 6, 19960.07
August 8, 19960.03
July 8, 19960.01

Institutional Ownership History (%)

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

Date Institutional Ownership
May 31, 201393
April 30, 201393
March 31, 201341
February 28, 201394
January 31, 201398
October 31, 2012100
September 30, 201293
August 31, 201295
July 31, 201295
June 30, 201287
May 31, 201285
April 30, 201285
March 31, 201287
February 29, 201292
January 31, 201291
December 31, 201192
November 30, 201192
October 31, 201192
September 30, 201189
August 31, 201189
July 31, 201184
June 30, 201186
May 31, 201186
April 30, 201185
March 31, 201184
February 28, 201185
January 31, 201183
December 31, 201084
November 30, 201084
October 31, 201088
September 30, 201092
August 31, 201092
July 31, 201098
June 30, 201093
May 31, 201096
April 30, 201088
March 31, 201090
February 28, 201087
January 31, 201086
December 31, 200984
November 30, 200985
October 31, 200985
September 30, 200983
August 31, 200983
July 31, 200993
June 30, 200992
May 31, 200992
April 30, 200984
March 31, 200983
February 28, 200983
January 31, 200987
December 31, 200890
November 30, 200893
October 31, 200896
September 30, 200899
August 31, 200899
July 31, 200899

Insider ownership (%)

This is the historical insider ownership of Affymetrix 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
January 31, 20153
December 31, 20142
November 30, 20143
October 31, 20143
September 30, 20143
August 31, 20143
July 31, 20143
June 30, 20143
May 31, 20143
March 31, 20143
February 28, 20143
January 31, 20143
December 31, 20133
November 30, 20133
October 31, 20133
September 30, 20133
August 31, 20133
July 31, 20133
June 30, 20133
May 31, 20133
April 30, 20132
March 31, 20132
January 31, 20132
November 30, 20122
October 31, 20122
September 30, 20122
August 31, 20122
July 31, 20122
June 30, 20122
May 31, 20122
April 30, 20122
March 31, 20122
February 29, 20122
January 31, 20122
December 31, 20112
November 30, 20112
October 31, 20112
September 30, 20112
August 31, 20112
July 31, 20112
June 30, 20112
May 31, 20112
April 30, 20112
March 31, 20112
February 28, 20112
January 31, 20112
December 31, 20102
November 30, 20102
October 31, 20102
September 30, 20102
August 31, 20102
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
April 30, 20081
March 31, 20081
February 29, 20081
January 31, 20081
December 31, 20071
November 30, 20071
October 31, 20071
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, 20061
March 31, 20061
February 28, 20061
January 31, 20061
December 31, 20051
November 30, 20051
October 31, 20051
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
November 30, 20041
October 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
Witney FrankPresident and CEO459,8470.62%2015-02-25
Kevin M. KingN/A271,2480.36%2011-06-27
Dr. Stephen P.A. Fodor,PhDExecutive Chairman, Director204,1160.27%2014-06-03
Dr. Andrew J. Last, PhDEVP and GM, GABU170,1120.23%2015-02-25
Timothy C. BarabeCFO166,3780.22%2013-03-18
John A. YoungDirector146,7370.2%2009-02-11
Mr. David A. WeberEVP, Commercial Operations133,4180.18%2015-02-25
Dr. John D. Diekman,PhDDirector102,9980.14%2012-05-11
Gavin WoodEVP, CFO97,7590.13%2015-02-19
John F. (Rick) Runkel, Jr.N/A78,2960.1%2013-02-17

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
PRIMECAP Management Company10,940,0402014-12-3114.730.11107,978,000
Orbimed Advisors, LLC6,568,0002014-12-318.840.6264,826,000
M&G INVESTMENT MANAGEMENT LTD5,236,2102014-12-317.050.3551,681,000
BlackRock Fund Advisors5,127,2002014-12-316.900.0150,605,000
PrimeCap Odyssey Aggressive Growth Fund5,000,0002014-12-316.730.7749,350,000
Vanguard Group, Inc.4,182,3122014-12-315.630.0041,279,000
Dimensional Fund Advisors, Inc.3,456,5152014-12-314.650.0234,116,000
Acadian Asset Management LLC2,889,1252014-12-313.890.1328,519,000
Vanguard Capital Opportunity Fund2,700,6002014-12-313.640.1926,654,922
Undrly Pru (M&G) Am Bd Life2,590,9482014-11-303.501.8923,537,371

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