ION GEOPHYSICAL CORP - 462044108

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q2 2014 · Compare: Q1 2014
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
VANGUARD GROUP INC History Reduced 8,574,437 36,184 0.0% 0.0% 1 -141,419 -1.62% Q2 2014 Aug 11, 2014
BlackRock Fund Advisors History Reduced 6,917,806 29,193 0.01% 0.01% 2 -485,263 -6.55% Q2 2014 Aug 06, 2014
DIMENSIONAL FUND ADVISORS LP History Added to 4,331,262 18,278 0.01% 0.01% 3 +742,955 20.7% Q2 2014 Aug 08, 2014
BlackRock Institutional Trust Company, N.A. History Reduced 3,716,468 15,683 0.0% 0.0% 4 -208,491 -5.31% Q2 2014 Aug 06, 2014
Neuberger Berman Group LLC History Reduced 2,882,360 12,164 0.01% 0.01% 5 -51,242 -1.75% Q2 2014 Aug 05, 2014
ROYCE & ASSOCIATES LLC History No change 1,178,200 4,972 0.01% 0.01% 6 0 0.0% Q2 2014 Aug 11, 2014
SCHWAB CHARLES INVESTMENT MANAGEMENT INC History Added to 1,108,915 4,680 0.01% 0.01% 7 +408,906 58.41% Q2 2014 Jul 30, 2014
TFS CAPITAL LLC History Added to 1,089,028 4,596 0.36% 0.11% 8 +709,825 187.19% Q2 2014 Jul 21, 2014
BLACKROCK ADVISORS LLC History Reduced 642,670 2,712 0.0% 81.74% 9 -43,331 -6.32% Q2 2014 Aug 06, 2014
AMERICAN CENTURY COMPANIES INC History New 615,475 2,597 0.0% 10 +615,475 New Q2 2014 Aug 04, 2014
Counsel Portfolio Services Inc. History No change 577,175 2,436 0.23% 0.24% 11 0 0.0% Q2 2014 Aug 11, 2014
BlackRock Investment Management, LLC History Reduced 468,324 1,976 0.0% 0.0% 12 -39,154 -7.72% Q2 2014 Aug 06, 2014
CORNERSTONE CAPITAL MANAGEMENT HOLDINGS LLC. History Added to 464,850 1,960 0.02% 0.0% 13 +380,950 454.05% Q2 2014 Aug 11, 2014
NEW YORK STATE TEACHERS RETIREMENT SYSTEM History No change 415,082 1,752 0.0% 0.0% 14 0 0.0% Q2 2014 Aug 04, 2014
CREDIT SUISSE AG/ History Added to 365,223 1,541 0.0% 0.0% 15 +147,700 67.9% Q2 2014 Aug 11, 2014
DEERE & CO History Reduced 317,098 1,338 0.07% 0.08% 16 -15,301 -4.6% Q2 2014 Aug 11, 2014
NEW YORK STATE COMMON RETIREMENT FUND History Added to 294,165 1,241 0.0% 0.0% 17 +22,000 8.08% Q2 2014 Aug 05, 2014
State of New Jersey Common Pension Fund D History New 275,000 1,161 0.0% 18 +275,000 New Q2 2014 Aug 11, 2014
Nationwide Fund Advisors History Added to 225,842 953 0.0% 0.0% 19 +122,975 119.55% Q2 2014 Aug 11, 2014
BlackRock Group LTD History Added to 224,766 949 0.0% 0.0% 20 +27,759 14.09% Q2 2014 Aug 06, 2014
RHUMBLINE ADVISERS History Reduced 184,431 778 0.0% 0.0% 21 -4,118 -2.18% Q2 2014 Aug 06, 2014
GLOBEFLEX CAPITAL L P History Reduced 173,295 731 0.08% 0.08% 22 -165 -0.1% Q2 2014 Jul 18, 2014
Swiss National Bank History No change 144,600 610 0.0% 0.0% 23 0 0.0% Q2 2014 Aug 06, 2014
TEXAS PERMANENT SCHOOL FUND History Added to 129,368 546 0.01% 0.01% 24 +455 0.35% Q2 2014 Jul 21, 2014
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM History No change 111,564 471 0.0% 0.0% 25 0 0.0% Q2 2014 Aug 07, 2014
AMERICAN INTERNATIONAL GROUP INC History Reduced 98,516 415 0.0% 0.0% 26 -4,939 -4.77% Q2 2014 Aug 08, 2014
Arizona State Retirement System History Added to 92,566 390 0.0% 0.0% 27 +1,200 1.31% Q2 2014 Aug 07, 2014
METROPOLITAN LIFE INSURANCE CO/NY History Reduced 83,334 352 0.0% 0.0% 28 -24,668 -22.84% Q2 2014 Jul 31, 2014
NCM Capital Advisers, Inc. History No change 77,200 326 0.48% 0.51% 29 0 0.0% Q2 2014 Aug 07, 2014
BOSTON ADVISORS LLC History Added to 75,689 319 0.01% 0.01% 30 +12,658 20.08% Q2 2014 Jul 23, 2014
Commonwealth Equity Services, Inc History Added to 68,065 287 0.0% 0.0% 31 +10,294 17.82% Q2 2014 Jul 23, 2014
ProShare Advisors LLC History Reduced 67,441 285 0.0% 0.01% 32 -70,015 -50.94% Q2 2014 Aug 08, 2014
Louisiana State Employees Retirement System History Added to 59,400 251 0.01% 0.01% 33 +200 0.34% Q2 2014 Jul 30, 2014
CAPSTONE ASSET MANAGEMENT CO History Reduced 58,738 248 0.01% 0.01% 34 -143 -0.24% Q2 2014 Jul 11, 2014
FOUNDERS FINANCIAL SECURITIES LLC History Added to 56,941 240 0.16% 0.15% 35 +3,752 7.05% Q2 2014 Jul 23, 2014
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY History No change 55,300 233 0.0% 0.0% 36 0 0.0% Q2 2014 Jul 18, 2014
WealthTrust Axiom LLC History Reduced 51,855 218 0.07% 0.08% 37 -2,000 -3.71% Q2 2014 Aug 01, 2014
GENERAL MOTORS INVESTMENT MANAGEMENT CORP History No change 46,523 196 0.02% 0.02% 38 0 0.0% Q2 2014 Aug 08, 2014
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO History No change 43,800 185 0.0% 0.0% 39 0 0.0% Q2 2014 Jul 16, 2014
Airain ltd History New 40,969 173 0.01% 40 +40,969 New Q2 2014 Aug 05, 2014
Aperio Group, LLC History Added to 40,354 170 0.0% 0.0% 41 +2,348 6.18% Q2 2014 Jul 23, 2014
Princeton Alpha Management LP History Added to 36,137 152 0.03% 0.03% 42 +14,310 65.56% Q2 2014 Jul 17, 2014
DEARBORN PARTNERS LLC History No change 32,300 136 0.01% 0.01% 43 0 0.0% Q2 2014 Jul 23, 2014
Municipal Employees' Retirement System of Michigan History Added to 31,600 133 0.01% 0.01% 44 +1,900 6.4% Q2 2014 Aug 04, 2014
PROFUND ADVISORS LLC History Reduced 29,599 125 0.01% 0.01% 45 -2,138 -6.74% Q2 2014 Aug 08, 2014
MASON STREET ADVISORS, LLC History Added to 16,085 68 0.0% 0.0% 46 +490 3.14% Q2 2014 Aug 05, 2014
Cambridge Investment Research Advisors, Inc. History Reduced 15,155 64 0.0% 0.0% 47 -14,115 -48.22% Q2 2014 Jul 25, 2014
BlackRock Japan Co. Ltd History Reduced 12,593 53 0.0% 0.0% 49 -23,927 -65.52% Q2 2014 Aug 06, 2014
CIBC Asset Management Inc History No change 12,477 53 0.0% 0.0% 48 0 0.0% Q2 2014 Aug 01, 2014
Mraz, Amerine & Associates, Inc. History No change 11,900 50 0.02% 0.02% 50 0 0.0% Q2 2014 Aug 11, 2014
SHELTON CAPITAL MANAGEMENT History No change 11,605 49 0.01% 0.01% 51 0 0.0% Q2 2014 Jul 25, 2014
RidgeWorth Capital Management LLC History New 11,026 47 0.0% 52 +11,026 New Q2 2014 Jul 31, 2014
World Asset Management Inc History Reduced 10,454 44 0.0% 0.0% 53 -857 -7.58% Q2 2014 Jul 28, 2014
TEACHER RETIREMENT SYSTEM OF TEXAS History No change 4,855 20 0.0% 0.0% 54 0 0.0% Q2 2014 Aug 05, 2014
EDELMAN FINANCIAL GROUP INC. History No change 5,000 20 0.0% 0.0% 55 0 0.0% Q2 2014 Aug 08, 2014
BlackRock Inc. History Reduced 3,998 17 0.0% 0.0% 57 -349 -8.03% Q2 2014 Aug 06, 2014
GREAT WEST LIFE ASSURANCE CO /CAN/ History No change 4,075 17 0.0% 0.0% 56 0 0.0% Q2 2014 Aug 06, 2014
Wunderlich Securities, Inc. History No change 1,000 4 0.0% 0.0% 58 0 0.0% Q2 2014 Jul 17, 2014
PNC FINANCIAL SERVICES GROUP, INC. History Reduced 489 2 0.0% 0.0% 59 -31 -5.96% Q2 2014 Aug 08, 2014
PIEDMONT INVESTMENT ADVISORS LLC History No change 576 2 0.0% 0.0% 60 0 0.0% Q2 2014 Aug 07, 2014
ENTERPRISE FINANCIAL SERVICES CORP History No change 228 1 0.0% 0.0% 61 0 0.0% Q2 2014 Jul 24, 2014
HABERER REGISTERED INVESTMENT ADVISOR INC History No change 300 1 0.0% 0.0% 62 0 0.0% Q2 2014 Jul 18, 2014
Invesco Ltd. History Closed out 0 0 0.06% -32,588,760 -100.0% Q1 2014 May 15, 2014
WELLS FARGO & COMPANY/MN History Closed out 0 0 0.01% -7,675,453 -100.0% Q1 2014 May 15, 2014
STATE STREET CORP History Closed out 0 0 0.0% -3,426,364 -100.0% Q1 2014 May 15, 2014
AMERIPRISE FINANCIAL INC History Closed out 0 0 0.01% -2,313,057 -100.0% Q1 2014 May 14, 2014
Allianz Asset Management AG History Closed out 0 0 0.01% -2,022,148 -100.0% Q1 2014 May 28, 2014
NORTHERN TRUST CORP History Closed out 0 0 0.0% -1,789,433 -100.0% Q1 2014 May 14, 2014
Bank of New York Mellon Corp History Closed out 0 0 0.0% -1,480,682 -100.0% Q1 2014 May 14, 2014
TIAA CREF INVESTMENT MANAGEMENT LLC History Closed out 0 0 0.0% -1,102,988 -100.0% Q1 2014 May 13, 2014
RENAISSANCE TECHNOLOGIES LLC History Closed out 0 0 0.01% -984,257 -100.0% Q1 2014 May 14, 2014
BOGLE INVESTMENT MANAGEMENT L P /DE/ History Closed out 0 0 0.26% -916,950 -100.0% Q1 2014 May 14, 2014
MORGAN STANLEY History Closed out 0 0 0.0% -845,437 -100.0% Q1 2014 May 13, 2014
Pine River Capital Management L.P. History Closed out 0 0 0.05% -800,000 -100.0% Q1 2014 May 15, 2014
PRINCIPAL FINANCIAL GROUP INC History Closed out 0 0 0.01% -774,236 -100.0% Q1 2014 May 13, 2014
Archer Capital Management, L.P. History Closed out 0 0 0.37% -736,200 -100.0% Q1 2014 May 15, 2014
GEODE CAPITAL MANAGEMENT, LLC History Closed out 0 0 0.0% -697,131 -100.0% Q1 2014 May 14, 2014
DEUTSCHE BANK AG\ History Closed out 0 0 0.0% -613,151 -100.0% Q1 2014 May 15, 2014
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM History Closed out 0 0 0.0% -483,900 -100.0% Q1 2014 Apr 18, 2014
PANAGORA ASSET MANAGEMENT INC History Closed out 0 0 0.01% -477,643 -100.0% Q1 2014 May 15, 2014
CITIGROUP INC History Closed out 0 0 0.0% -462,124 -100.0% Q1 2014 May 15, 2014
CITADEL ADVISORS LLC History Closed out 0 0 2.63% -433,647 -100.0% Q1 2014 Aug 08, 2014
D. E. Shaw & Co., Inc. History Closed out 0 0 0.0% -412,438 -100.0% Q1 2014 May 15, 2014
WELLINGTON MANAGEMENT CO LLP History Closed out 0 0 0.0% -355,909 -100.0% Q1 2014 May 15, 2014
JACOBS LEVY EQUITY MANAGEMENT, INC History Closed out 0 0 0.02% -348,101 -100.0% Q1 2014 May 15, 2014
PRUDENTIAL FINANCIAL INC History Closed out 0 0 0.0% -347,304 -100.0% Q1 2014 May 14, 2014
FMR LLC History Closed out 0 0 0.0% -325,000 -100.0% Q1 2014 May 15, 2014
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC History Closed out 0 0 0.01% -321,710 -100.0% Q1 2014 May 12, 2014
MILLENNIUM MANAGEMENT LLC History Closed out 0 0 0.0% -302,147 -100.0% Q1 2014 May 15, 2014
GOLDMAN SACHS GROUP INC History Closed out 0 0 0.0% -301,688 -100.0% Q1 2014 May 15, 2014
TEACHERS ADVISORS INC History Closed out 0 0 0.0% -286,447 -100.0% Q1 2014 May 13, 2014
VILLERE ST DENIS J & CO LLC History Closed out 0 0 0.05% -284,186 -100.0% Q1 2014 Apr 29, 2014
State of New Jersey Common Pension Fund A History Closed out 0 0 0.01% -275,000 -100.0% Q1 2014 May 05, 2014
AQR CAPITAL MANAGEMENT LLC History Closed out 0 0 0.0% -268,800 -100.0% Q1 2014 May 15, 2014
TWO SIGMA INVESTMENTS LLC History Closed out 0 0 0.01% -262,462 -100.0% Q1 2014 May 15, 2014
PUBLIC SECTOR PENSION INVESTMENT BOARD History Closed out 0 0 0.01% -257,658 -100.0% Q1 2014 May 15, 2014
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Closed out 0 0 0.0% -242,017 -100.0% Q1 2014 May 08, 2014
PARAMETRIC PORTFOLIO ASSOCIATES LLC History Closed out 0 0 0.0% -239,100 -100.0% Q1 2014 May 13, 2014
HIGHBRIDGE CAPITAL MANAGEMENT LLC History Closed out 0 0 0.01% -238,192 -100.0% Q1 2014 May 16, 2014
ALLIANCEBERNSTEIN L.P. History Closed out 0 0 0.0% -224,700 -100.0% Q1 2014 May 13, 2014
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Closed out 0 0 0.0% -205,795 -100.0% Q1 2014 May 14, 2014
NOMURA HOLDINGS INC History Closed out 0 0 0.0% -159,938 -100.0% Q1 2014 May 14, 2014
BARCLAYS PLC History Closed out 0 0 0.0% -155,693 -100.0% Q1 2014 May 15, 2014
New Jersey Better Educational Savings Trust History Closed out 0 0 0.3% -150,000 -100.0% Q1 2014 May 05, 2014
FIRST TRUST ADVISORS LP History Closed out 0 0 0.0% -145,527 -100.0% Q1 2014 May 12, 2014
COMERICA BANK History Closed out 0 0 0.0% -128,974 -100.0% Q1 2014 May 15, 2014
OAK ASSOCIATES LTD /OH/ History Closed out 0 0 0.06% -118,700 -100.0% Q1 2014 Jun 03, 2014
State of Tennessee, Treasury Department History Closed out 0 0 0.0% -110,600 -100.0% Q1 2014 May 30, 2014
MANUFACTURERS LIFE INSURANCE COMPANY, THE History Closed out 0 0 0.0% -103,507 -100.0% Q1 2014 May 15, 2014
SECOR Capital Advisors, LP History Closed out 0 0 0.21% -100,745 -100.0% Q1 2014 Apr 28, 2014
BANK OF AMERICA CORP /DE/ History Closed out 0 0 0.0% -96,948 -100.0% Q1 2014 May 15, 2014
JPMORGAN CHASE & CO History Closed out 0 0 0.0% -89,182 -100.0% Q1 2014 May 15, 2014
RUSSELL FRANK CO/ History Closed out 0 0 0.0% -88,511 -100.0% Q1 2014 May 16, 2014
ING INVESTMENT MANAGEMENT LLC History Closed out 0 0 0.0% -84,580 -100.0% Q1 2014 May 15, 2014
PRICE T ROWE ASSOCIATES INC /MD/ History Closed out 0 0 0.0% -81,300 -100.0% Q1 2014 May 15, 2014
Weiss Multi-Strategy Advisers LLC History Closed out 0 0 0.01% -68,790 -100.0% Q1 2014 May 15, 2014
Hillsdale Investment Management Inc. History Closed out 0 0 0.07% -61,300 -100.0% Q1 2014 May 14, 2014
OPPENHEIMER & CO INC History Closed out 0 0 0.01% -58,000 -100.0% Q1 2014 May 09, 2014
VTL Associates, LLC History Closed out 0 0 0.02% -55,966 -100.0% Q1 2014 May 15, 2014
GUGGENHEIM CAPITAL LLC History Closed out 0 0 0.0% -54,057 -100.0% Q1 2014 May 16, 2014
Horizon Investments, LLC/SC History Closed out 0 0 0.03% -53,681 -100.0% Q1 2014 May 13, 2014
Jefferies Group LLC History Closed out 0 0 0.0% -52,698 -100.0% Q1 2014 May 16, 2014
Verition Fund Management LLC History Closed out 0 0 0.03% -49,246 -100.0% Q1 2014 May 14, 2014
THRIVENT FINANCIAL FOR LUTHERANS History Closed out 0 0 0.0% -46,550 -100.0% Q1 2014 May 14, 2014
VIRGINIA RETIREMENT SYSTEMS ET AL History Closed out 0 0 0.0% -45,100 -100.0% Q1 2014 May 14, 2014
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC History Closed out 0 0 0.0% -41,196 -100.0% Q1 2014 May 23, 2014
GRT CAPITAL PARTNERS LLC History Closed out 0 0 0.02% -37,800 -100.0% Q1 2014 May 15, 2014
Nine Chapters Capital Management LLC History Closed out 0 0 0.02% -36,800 -100.0% Q1 2014 May 15, 2014
TWO SIGMA ADVISERS, LLC History Closed out 0 0 0.0% -34,696 -100.0% Q1 2014 May 15, 2014
PineBridge Investments Ltd History Closed out 0 0 0.0% -32,172 -100.0% Q1 2014 May 14, 2014
Index Management Solutions, LLC History Closed out 0 0 0.02% -30,128 -100.0% Q1 2014 May 15, 2014
GROUP ONE TRADING, L.P. History Closed out 0 0 0.0% -29,987 -100.0% Q1 2014 May 07, 2014
STEVENS CAPITAL MANAGEMENT LP History Closed out 0 0 0.0% -28,441 -100.0% Q1 2014 May 06, 2014
CSS LLC/IL History Closed out 0 0 0.01% -28,400 -100.0% Q1 2014 May 15, 2014
UBS AG History Closed out 0 0 0.0% -26,692 -100.0% Q1 2014 May 16, 2014
TRUST CO OF TOLEDO NA /OH/ History Closed out 0 0 0.03% -25,175 -100.0% Q1 2014 Apr 08, 2014
BANK OF MONTREAL /CAN/ History Closed out 0 0 0.0% -24,718 -100.0% Q1 2014 May 15, 2014
PEAK6 Investments, L.P. History Closed out 0 0 0.0% -22,287 -100.0% Q1 2014 May 19, 2014
TUDOR INVESTMENT CORP ET AL History Closed out 0 0 0.0% -22,009 -100.0% Q1 2014 May 15, 2014
Spot Trading L.L.C History Closed out 0 0 0.0% -21,491 -100.0% Q1 2014 May 13, 2014
MANNING & NAPIER ADVISORS LLC History Closed out 0 0 0.0% -20,260 -100.0% Q1 2014 Apr 22, 2014
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO History Closed out 0 0 0.0% -19,219 -100.0% Q1 2014 May 15, 2014
COMMERZBANK AKTIENGESELLSCHAFT /FI History Closed out 0 0 0.0% -16,823 -100.0% Q1 2014 May 14, 2014
SG Americas Securities, LLC History Closed out 0 0 0.0% -14,662 -100.0% Q1 2014 May 14, 2014
MENTA CAPITAL LLC History Closed out 0 0 0.02% -13,500 -100.0% Q1 2014 Apr 23, 2014
Tradeworx Inc. History Closed out 0 0 0.05% -13,060 -100.0% Q1 2014 Jun 02, 2014
BOKF, NA History Closed out 0 0 0.0% -12,270 -100.0% Q1 2014 May 14, 2014
Summit Investment Advisors, Inc. History Closed out 0 0 0.0% -11,881 -100.0% Q1 2014 May 13, 2014
SEGALL BRYANT & HAMILL History Closed out 0 0 0.0% -11,880 -100.0% Q1 2014 May 15, 2014
SUNTRUST BANKS INC History Closed out 0 0 0.0% -11,401 -100.0% Q1 2014 May 14, 2014
Nuveen Asset Management, LLC History Closed out 0 0 0.0% -11,098 -100.0% Q1 2014 May 14, 2014
HBK INVESTMENTS L P History Closed out 0 0 0.0% -10,054 -100.0% Q1 2014 May 15, 2014
National Asset Management, Inc. History Closed out 0 0 0.01% -10,000 -100.0% Q1 2014 May 02, 2014
SPRINGBOK CAPITAL MANAGEMENT, LLC History Closed out 0 0 0.01% -9,300 -100.0% Q1 2014 May 15, 2014
MANAGED ACCOUNT ADVISORS LLC History Closed out 0 0 0.0% -4,788 -100.0% Q1 2014 May 15, 2014
Creative Planning History Closed out 0 0 0.0% -4,600 -100.0% Q1 2014 Apr 11, 2014
BROWN BROTHERS HARRIMAN & CO History Closed out 0 0 0.0% -3,500 -100.0% Q1 2014 May 15, 2014
LADENBURG THALMANN FINANCIAL SERVICES INC History Closed out 0 0 0.0% -2,500 -100.0% Q1 2014 May 15, 2014
GLENMEDE TRUST CO NA History Closed out 0 0 0.0% -1,500 -100.0% Q1 2014 May 07, 2014
Parallax Volatility Advisers, LLC History Closed out 0 0 0.0% -856 -100.0% Q1 2014 May 15, 2014
ROYAL BANK OF CANADA History Closed out 0 0 0.0% -500 -100.0% Q1 2014 May 15, 2014
Tower Research Capital LLC History Closed out 0 0 0.0% -122 -100.0% Q1 2014 May 02, 2014
Gemmer Asset Management LLC History Closed out 0 0 -116 -100.0% Q1 2014 May 23, 2014
Walleye Trading LLC History Closed out 0 0 -100 -100.0% Q1 2014 May 15, 2014
US BANCORP \DE\ History Closed out 0 0 -90 -100.0% Q1 2014 May 14, 2014