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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
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
June 30, 201595
March 31, 201591
December 31, 201495
September 30, 201492
March 31, 201487
December 31, 201393
September 30, 201377
June 30, 201396
March 31, 201362
December 31, 201290
September 30, 201255
June 30, 201252
March 31, 201245
December 31, 201158
September 30, 201126
June 30, 201121

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
July 31, 20156
June 30, 20156
May 31, 20156
April 30, 20156
March 31, 20156
February 28, 20156
January 31, 20157
December 31, 20147
November 30, 20147
October 31, 20147
September 30, 20147
August 31, 20147
July 31, 20147
June 30, 20147
May 31, 20147
March 31, 20148
February 28, 20148
January 31, 20148
December 31, 20138
November 30, 20138
October 31, 20138
September 30, 20139
August 31, 20139
July 31, 20139
June 30, 20139
May 31, 20139
April 30, 20139
March 31, 20139
January 31, 201310
November 30, 201210
October 31, 201210
September 30, 201210
August 31, 201210
July 31, 201210
June 30, 201210
May 31, 201211
April 30, 201210
March 31, 201210
February 29, 201210
January 31, 201214
December 31, 201114
November 30, 201114
October 31, 201114
September 30, 201114
August 31, 201116
July 31, 201116
June 30, 201116
May 31, 201116
April 30, 20115

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Eran ZurPresident2,547,4304.69%2011-09-21
Mr. Hendrik LindeSenior Vice President214,6710.4%2012-08-20
Sanford R. RobertsonDirector211,7850.39%2015-06-09
Ms. Mallun YenExecutive Vice President87,7370.16%2015-08-20
Martin RobertsSVP, Gen. Counsel & Secretary58,6030.11%2015-08-20
Steven L. FingerhoodN/A51,9720.1%2015-06-09
Mr. Geoffrey T. BarkerExecutive Director39,399less than 0.1%2015-08-03
Thomas O. RyderDirector37,770less than 0.1%2015-06-09
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)
Fiduciary Management, Inc. of Milwaukee   Premium Plus4,577,9552015-06-308.430.4077,367
Vanguard Group, Inc.   Premium Plus3,301,2132015-06-306.08N/A55,790
BlackRock Fund Advisors   Premium Plus3,024,8652015-06-305.570.0151,120
Blair William & Co   Premium Plus2,568,8112015-06-304.730.0643,413
Dimensional Fund Advisors, Inc.   Premium Plus2,196,6722015-06-304.050.0237,124
Columbia Wanger Asset Management LLC Premium2,103,3902015-06-303.880.2335,547
Acadian Asset Management LLC   Premium Plus2,030,3862015-06-303.740.1734,314
Columbia Acorn Fund1,908,9542015-06-303.520.2932,261
FMI Common Stock Fund1,895,0002015-06-303.492.3732,026
Robeco Investment Management, Inc.   Premium Plus1,647,5192015-06-303.040.0427,843

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