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ION Geophysical Corp (IO) Ownership Data

Short Interest History (%)

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

Date Short Interest
May 15, 20153.27
April 30, 20152.65
April 15, 20153.24
March 31, 20153.04
March 13, 20153.54
February 27, 20153.45
February 13, 20153.57
January 30, 20153.68
January 15, 20154.12
December 31, 20143.9
December 15, 20145.02
November 28, 20144.02
November 14, 20143.92
October 31, 20144.3
October 15, 20146.34
September 30, 20146.55
September 15, 20146.02
August 29, 20145.93
August 15, 20145.92
July 31, 20145.86
July 15, 20146.15
June 30, 20147.04
June 13, 20146.82
May 30, 20146.56
May 15, 20146.39
April 30, 20146.35
April 15, 20146.13
March 31, 20146.34
March 14, 20146.41
February 28, 20146.14
February 14, 20148.94
January 31, 20146.77
January 15, 20146.26
December 31, 20136.18
December 13, 20134.1
November 29, 20133.22
November 15, 20133.13
October 31, 20133.07
October 15, 20133.51
September 30, 20137.99
September 13, 20132.74
August 30, 20132.81
August 15, 20132.86
July 31, 20132.54
July 15, 20132.14
June 28, 20137.11
June 14, 20132.53
May 31, 20132.54
May 15, 20132.96
April 30, 20133.2
April 15, 20133.09
March 28, 20133.82
March 15, 20133.91
February 28, 20134.08
February 15, 20134.24
January 31, 20134.45
January 15, 20134.73
December 31, 20125.15
December 14, 20126.07
November 30, 20126.9
November 15, 20126.8
October 31, 20126.48
October 15, 20126.63
September 28, 20126.99
September 14, 20127.9
August 31, 20127.38
August 15, 20127.55
July 31, 20128.06
July 13, 20128.3
June 29, 20128.79
June 15, 20129.3
May 31, 20129.42
May 15, 20129.16
April 30, 20128.59
April 13, 20128.39
March 30, 20125.57
March 15, 20125.7
February 29, 20125.27
February 15, 20126.8
January 31, 20126.99
January 13, 20126.48
December 30, 20116.82
December 15, 20116.79
November 30, 20116.95
November 15, 20117.61
October 31, 20116.99
October 14, 20117.64
September 30, 20117.34
September 15, 20117.64
August 31, 20118.24
August 15, 20118.19
July 29, 20117.07
July 15, 20117.02
June 30, 20116.76
June 15, 20116.83
May 31, 20116.98
May 13, 20116.79
April 29, 20116.54
April 15, 20116.38
March 31, 20116.89
March 15, 20117.09
February 28, 20117.17
February 15, 20115.68
January 31, 20115.3
January 14, 20115.73
December 31, 20105.61
December 15, 20106.25
November 30, 20106.59
November 15, 20106.64
October 29, 20106.03
October 15, 20106.1
September 30, 20106
September 15, 20105.99
August 31, 20106.16
August 13, 20105.14
July 30, 20105.09
July 15, 20105.01
June 30, 20104.6
June 15, 20104.74
May 28, 20104.04
May 14, 20104.04
April 30, 20103.23
April 15, 20103.71
March 31, 20103.42
March 15, 20104.15
February 26, 20103.87
February 12, 20103.45
January 29, 20104.39
January 15, 20104.85
December 31, 20094.73
December 15, 20094.68
November 30, 20094.75
November 13, 20092.2
October 30, 20091.99
October 15, 20091.86
September 30, 20091.97
September 15, 20091.97
August 31, 20091.99
August 14, 20092.51
July 31, 20092.59
July 15, 20093.32
June 30, 20093.6
June 15, 20093.69
May 29, 20092.47
May 15, 20092.45
April 30, 20091.68
April 15, 20091.71
March 31, 20091.93
March 13, 20094.26
February 27, 20096.26
February 13, 20096.39
January 30, 20096.58
January 15, 20096.44
December 31, 20086.51
December 15, 20082.67
November 28, 20082.79
November 14, 20083.45
October 31, 20084.7
October 15, 20085.96
September 30, 20088.39
September 15, 20088.34
August 29, 20088.62
August 15, 20088.51
July 31, 20089.56
July 15, 200810.79
June 30, 20089.65
June 13, 20089.76
May 30, 20088.7
May 15, 20087.68
April 30, 20087.36
April 15, 20087.54
March 31, 20087.83
March 14, 20088.42
February 29, 20088.85
February 15, 20088.35
January 31, 20088.04
January 15, 20088.39
December 31, 20077.38
December 11, 20078.4
November 27, 20078.74
November 9, 200710.35
October 26, 20079.58
October 10, 20079.41
September 25, 20078.97
September 11, 20078.09
August 10, 200710.01
July 10, 20079.56
June 12, 20079.19
May 10, 20079.11
April 10, 20078.7
March 12, 20078.25
February 12, 20077.58
January 9, 20077.54
December 12, 20069.3
November 10, 200610.56
October 10, 200612.02
September 12, 200611.63
August 10, 200613.24
July 11, 200612.67
June 12, 200613.52
May 10, 200612.41
April 10, 200613.23
March 10, 200612.35
February 10, 200612.8
January 10, 200613.19
December 12, 200513.4
November 10, 200514.41
October 11, 200513.56
September 12, 200514.88
August 10, 200513.88
July 12, 200514.06
June 10, 200514.3
May 10, 200514.72
April 12, 200512.09
March 10, 200511.6
February 10, 20059.63
January 11, 200510.95
December 10, 20047.89
November 10, 20046.92
October 12, 20047.53
September 10, 20047.97
August 10, 20048.67
July 12, 20049.02
June 9, 200412.16
May 11, 200411.08
April 12, 200413.31
March 10, 200415.84
February 10, 200414.38
January 12, 200412.76
December 10, 20036.99
November 11, 20030.74
October 10, 20030.95
September 10, 20030.62
August 12, 20030.59
July 10, 20030.79
June 10, 20030.78
May 12, 20030.82
April 10, 20030.86
March 11, 20030.88
February 11, 20030.89
January 10, 20030.73
December 10, 20020.53
November 12, 20020.45
October 10, 20020.74
September 10, 20021.04
August 12, 20020.95
July 10, 20020.9
June 11, 20020.73
May 10, 20021.13
April 10, 20020.93
March 12, 20020.82
February 12, 20020.64
January 10, 20020.61
December 11, 20011.11
November 12, 20011.03
October 10, 20011.48
September 5, 20011.54
August 10, 20011.42
July 10, 20010.81
June 12, 20010.62
May 10, 20010.71
April 9, 20010.41
March 12, 20010.15
February 12, 20010.35
January 9, 20010.37
December 12, 20000.12
November 10, 20000.63
October 10, 20000.75
September 12, 20001.25
August 10, 20001.45
July 11, 20002.14
June 12, 20002.26
May 10, 20002.25
April 11, 20001.64
March 10, 20001.94
February 10, 20002.27
January 11, 20002.27
December 10, 19992.58
November 10, 19992.85
October 12, 19993.14
September 10, 19993.25
August 10, 19993.2
July 12, 19993.12
June 10, 19993.24
May 11, 19992.84
April 12, 19991.82
March 10, 19991.92
February 9, 19991.52
January 8, 19991.59
December 8, 19980.79
November 6, 19981.42
October 8, 19981.2
September 8, 19980.94
August 7, 19980.36
July 8, 19980.43
June 8, 19980.27
May 8, 19980.69
April 7, 19980.8
March 6, 19981.5
February 6, 19982.16
January 8, 19981.41
December 8, 19972.19
November 7, 19972.82
October 8, 19973.35
September 8, 19975.3
August 8, 19975.97
July 8, 19975.95
June 6, 19976.08
May 8, 19974.36
April 8, 19972.17
March 7, 19972.97
February 7, 19973.12
January 8, 19971.62
December 6, 19961.15
November 8, 19960.52
October 8, 19960.28
September 6, 19960.72
August 8, 19960.65
July 8, 19960.56
June 7, 19960.44
May 8, 19960.4
April 8, 19960.67
March 8, 19960.72
February 8, 19960.72
January 8, 19960.84
December 8, 19950.76
November 8, 19950.66
October 6, 19950.74
September 8, 19950.68
August 8, 19951.21
July 7, 19951.27
June 8, 19951.37
May 8, 19951.55
April 6, 19952.08
March 8, 19951.89
February 8, 19951.81
January 6, 19952.42

Institutional Ownership History (%)

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

Date Institutional Ownership
April 30, 201583
March 31, 201584
February 28, 201583
January 31, 201583
August 31, 2014100
July 31, 2014100
October 31, 201388
September 30, 201395
August 31, 201395
July 31, 201394
May 31, 201360
March 31, 201387
February 28, 201387
January 31, 201389
December 31, 201288
November 30, 201288
October 31, 201287
September 30, 201286
August 31, 201290
July 31, 201290
June 30, 201290
May 31, 201290
April 30, 201290
March 31, 201285
February 29, 201293
January 31, 201273
December 31, 201177
November 30, 201177
October 31, 201177
September 30, 201174
August 31, 201174
July 31, 201175
June 30, 201174
May 31, 201188
April 30, 201184
March 31, 201182
February 28, 201182
January 31, 201179
December 31, 201078
November 30, 201078
October 31, 201069
September 30, 201068
August 31, 201068
July 31, 201064
June 30, 201065
May 31, 201070
April 30, 201089
March 31, 201089
February 28, 201075
January 31, 201061
December 31, 200961
November 30, 200960
October 31, 200963
September 30, 200958
August 31, 200958
July 31, 200956
June 30, 200955
May 31, 200966
April 30, 200974
March 31, 200975
February 28, 200975
January 31, 200987
December 31, 200889
November 30, 200889
October 31, 200891
September 30, 200895
August 31, 200895
July 31, 200895
June 30, 200898
May 31, 200898
April 30, 200898
March 31, 200893
February 29, 200893
January 31, 200893

Insider ownership (%)

This is the historical insider ownership of ION Geophysical 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
April 30, 20153
March 31, 20153
February 28, 20153
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, 20132
September 30, 20132
August 31, 20132
July 31, 20132
June 30, 20132
May 31, 20132
April 30, 20132
March 31, 20132
January 31, 20132
November 30, 20123
October 31, 20122
September 30, 20122
August 31, 20122
July 31, 20123
June 30, 20123
May 31, 20123
April 30, 20123
March 31, 20123
February 29, 20123
January 31, 20123
December 31, 20113
November 30, 20113
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, 20102
June 30, 20102
May 31, 20102
April 30, 20102
March 31, 20103
February 28, 20103
January 31, 20103
December 31, 20093
November 30, 20092
October 31, 20092
September 30, 20092
August 31, 20092
July 31, 20092
June 30, 20092
May 31, 20093
April 30, 20093
March 31, 20093
February 28, 20092
January 31, 20092
December 31, 20082
November 30, 20082
October 31, 20082
September 30, 20082
August 31, 20082
July 31, 20082
June 30, 20082
May 31, 20082
April 30, 20082
March 31, 20082
February 29, 20082
January 31, 20082
December 31, 20072
November 30, 20072
October 31, 20072
September 30, 20072
August 31, 20072
July 31, 20072
June 30, 20072
May 31, 20072
April 30, 20072
March 31, 20072
February 28, 20072
January 31, 20072
December 31, 20062
November 30, 20062
October 31, 20062
September 30, 20062
June 30, 20063
May 31, 20063
April 30, 20063
March 31, 20063
February 28, 20063
January 31, 20063
December 31, 20053
November 30, 20053
October 31, 20053
September 30, 20053
August 31, 20053
July 31, 20053
June 30, 20053
May 31, 20053
April 30, 20053
March 31, 20053
February 28, 20053
January 31, 20052
December 31, 20042
November 30, 20042
October 31, 20042
September 30, 20042
August 31, 20042
July 31, 20042
June 30, 20042
May 31, 20042
April 30, 20043
March 31, 20043
February 29, 20043

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
James M. Lapeyre,JrDirector1,654,1131.01%2015-05-15
Robert P. PeeblerChief Exec Officer640,5360.39%2012-12-31
R. Brian HansonPresident & CEO332,7740.2%2015-03-01
Kenneth G. WilliamsonN/A188,1450.11%2015-03-01
Mr. John N. SeitzDirector168,8950.1%2015-03-01
Steven BateSVP Systems Division150,343less than 0.1%2015-03-01
Mr. Franklin MyersDirector147,000less than 0.1%2015-03-01
S. James Nelson,JrDirector139,000less than 0.1%2015-03-01
David BarrN/A119,000less than 0.1%2015-03-01
Michael C. JenningsN/A119,000less than 0.1%2015-03-01

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Invesco Canada Fund Inc.   Premium Plus25,004,6842014-12-3115.200.5368,763,000
BGP Inc., China National Petroleum Corp23,789,5362014-02-2814.530.0096,823,412
Invesco Select Companies Fund14,077,2892015-03-318.552.3630,547,717
Vanguard Group, Inc.   Premium Plus9,113,7712015-03-315.530.0019,777,000
BlackRock Fund Advisors   Premium Plus7,939,6932015-03-314.820.0017,229,000
Trimark Canadian Small Companies7,640,9732014-12-314.663.5921,075,447
Laitram LLC7,605,3452014-02-284.640.0030,953,754
Invesco Advisers, Inc   Premium Plus6,418,0052014-12-313.900.0117,650,000
Invesco Small Cap Value6,114,7432015-03-313.710.3713,268,992
Standard Life US Small-Cap Equity Fund (Invesco)6,114,7432014-12-313.720.5016,815,543

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