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RPX Corp (RPXC) Ownership Data

Short Interest History (%)

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

Date Short Interest
January 29, 20164.27
January 15, 20164.84
December 31, 20154.6
December 15, 20154.76
November 30, 20154.78
November 13, 20154.78
October 30, 20154.82
October 15, 20154.96
September 30, 20155.28
September 15, 20155.95
August 31, 20156.04
August 14, 20155.35
July 31, 20155.15
July 15, 20155.44
June 30, 20155.75
June 15, 20155.65
May 29, 20155.5
May 15, 20155.45
April 30, 20154.74
April 15, 20154.41
March 31, 20154.36
March 13, 20154.53
February 27, 20154.46
February 13, 20158.24
January 30, 20157.8
January 15, 20157.39
December 31, 20147.31
December 15, 20147.72
November 28, 20147.83
November 14, 20147.81
October 31, 20148.35
October 15, 20147.73
September 30, 20147.39
September 15, 20146.95
August 29, 20146.71
August 15, 20146.62
July 31, 20147.19
July 15, 20147.42
June 30, 20146.36
June 13, 20146.36
May 30, 20146.4
May 15, 20146.34
April 30, 20146.12
April 15, 20149.29
March 31, 20149.09
March 14, 20148.96
February 28, 20148.78
February 14, 20149.64
January 31, 20149.7
January 15, 20149.8
December 31, 20139.65
December 13, 20139.68
November 29, 20139.87
November 15, 201310
October 31, 20139.39
October 15, 20136.66
September 30, 20136.02
September 13, 20135.46
August 30, 20135.34
August 15, 20134.68
July 31, 20133.22
July 15, 20133.44
June 28, 20132.46
June 14, 20132.2
May 31, 20131.99
May 15, 20132.08
April 30, 20132.49
April 15, 20133.79
March 28, 20133.91
March 15, 20133.75
February 28, 20134.1
February 15, 20134.56
January 31, 20133.99
January 15, 20133.83
December 31, 20123.95
December 14, 20124.15
November 30, 20129.54
November 15, 20128.88
October 31, 20125.88
October 15, 20125.01
September 28, 20125.22
September 14, 20125.4
August 31, 20124.79
August 15, 20125.58
July 31, 20125.06
July 13, 20125.11
June 29, 20125.45
June 15, 20123.36
May 31, 20123.45
May 15, 20123.77
April 30, 20124.46
April 13, 20125.95
March 30, 20124.25
March 15, 20124.32
February 29, 20123.57
February 15, 20123.93
January 31, 20124.81
January 13, 20124.69
December 30, 20114.94
December 15, 20114.15
November 30, 20114.57
November 15, 20114.58
October 31, 20116.09
October 14, 20116.4
September 30, 20115.7
September 15, 20113.98
August 31, 20114.03
August 15, 20113.6
July 29, 20113.88
July 15, 20113.63
June 30, 20113.91
June 15, 20110.41
May 31, 20110.32
May 13, 20110.16

Institutional Ownership History (%)

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

Date Institutional Ownership
December 31, 201593.7
September 30, 201590.89
June 30, 201594.54
March 31, 201590.47
December 31, 201494.88
September 30, 201493.51
March 31, 201488.94
December 31, 201394.75
September 30, 201377.38
June 30, 201395.76
March 31, 201362.03
December 31, 201290.28
September 30, 201255.9
June 30, 201252.95
March 31, 201245.59
December 31, 201158
September 30, 201125.56
June 30, 201120.91

Insider ownership (%)

This is the historical insider ownership of RPX 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, 20156.47
November 30, 20156.4
October 31, 20156.39
September 30, 20156.34
August 31, 20156.34
July 31, 20156.29
June 30, 20156.33
May 31, 20156.28
April 30, 20156.39
March 31, 20156.43
February 28, 20156.47
January 31, 20156.5
December 31, 20147.11
November 30, 20146.57
October 31, 20146.6
September 30, 20146.65
August 31, 20146.71
July 31, 20146.74
June 30, 20146.85
May 31, 20146.85
March 31, 20147.87
February 28, 20148.02
January 31, 20148.02
December 31, 20138.14
November 30, 20138.28
October 31, 20138.4
September 30, 20138.52
August 31, 20138.68
July 31, 20138.8
June 30, 20138.94
May 31, 20139.16
April 30, 20139.29
March 31, 20139.46
January 31, 20139.87
November 30, 20129.72
October 31, 20129.88
September 30, 20129.91
August 31, 201210.08
July 31, 201210.28
June 30, 201210.37
May 31, 201210.5
April 30, 201210.42
March 31, 201210.36
February 29, 201210.36
January 31, 201213.74
December 31, 201113.74
November 30, 201113.74
October 31, 201113.63
September 30, 201113.63
August 31, 201115.76
July 31, 201115.76
June 30, 201115.76
May 31, 201116.15
April 30, 20114.64

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Eran ZurPresident2,547,4304.68%2011-09-21
Mr. Hendrik LindeSenior Vice President214,6710.39%2012-08-20
Sanford R. RobertsonDirector211,7850.39%2015-06-09
Ms. Mallun YenExecutive Vice President96,9470.18%2015-12-30
Martin RobertsSVP, Gen. Counsel & Secretary67,1940.12%2015-11-20
Steven L. FingerhoodN/A51,9720.1%2015-06-09
Thomas O. RyderDirector37,770less than 0.1%2015-06-09
Mr. Robert HeathCFO, SVP37,731less than 0.1%2015-11-20
Mr. Adam C. SpiegelCFO; SVP, Finance; Treasurer37,670less than 0.1%2013-05-01
Shelby W. BonnieDirector35,194less than 0.1%2015-06-09

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
BlackRock Advisors LLC   Premium Plus5,056,4732015-12-319.30N/A55,621
Fiduciary Management, Inc. of Milwaukee   Premium Plus4,543,0182015-09-308.290.3462,330
Vanguard Group Inc   Premium Plus3,396,5452015-09-306.20N/A46,599
BlackRock Fund Advisors   Premium Plus3,139,2412015-09-305.730.0143,070
Dimensional Fund Advisors, Inc.   Premium Plus2,571,3022015-09-304.690.0235,278
William Blair Investment Management, LLC   Premium Plus1,959,4112015-09-303.580.0526,883
Acadian Asset Management LLC   Premium Plus1,879,6002015-12-313.460.1120,675
Numeric Investors LLC   Premium Plus1,817,6512015-12-313.340.2119,994
FMI Common Stock Fund1,770,0002015-12-313.251.7419,470
Columbia Acorn Fund1,708,6492015-11-303.140.3323,699

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