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ION GEOPHYSICAL CORP COM NEW
ION GEOPHYSICAL CORP COM NEW. Institutional holdings reported to the SEC.

Institutional Holders (2016Q2)
Portfolio Summary: 71 Institutional holders with a total value of $32,307,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Invesco Ltd. 1,785,768 11,126,000 34.44%
2 Gates Capital Management, Inc. 644,460 4,015,000 12.43%
3 VANGUARD GROUP INC 405,982 2,530,000 7.83%
4 DIMENSIONAL FUND ADVISORS LP 269,317 1,678,000 5.19%
5 Neuberger Berman Group LLC 183,959 1,147,000 3.55%
6 RENAISSANCE TECHNOLOGIES LLC 169,182 1,054,000 3.26%
7 BlackRock Institutional Trust Company, N.A. 158,636 988,000 3.06%
8 OXFORD ASSET MANAGEMENT LLP 112,733 702,000 2.17%
9 BRIDGEWAY CAPITAL MANAGEMENT, LLC 109,150 680,000 2.10%
10 OSTERWEIS CAPITAL MANAGEMENT INC 104,000 648,000 2.01%
11 NORGES BANK 84,745 528,000 1.63%
12 FULLER & THALER ASSET MANAGEMENT, INC. 84,544 527,000 1.63%
13 Spark Investment Management LLC 73,200 456,000 1.41%
14 ROYCE & ASSOCIATES LP 71,880 448,000 1.39%
15 Connor, Clark & Lunn Investment Management Ltd. 65,396 407,000 1.26%
16 Counsel Portfolio Services Inc. 52,735 329,000 1.02%
17 IMPAX ASSET MANAGEMENT LLC 50,000 312,000 0.97%
18 JACOBS LEVY EQUITY MANAGEMENT, INC 50,123 312,000 0.97%
19 Archer Capital Management, L.P. 47,500 296,000 0.92%
20 WOLVERINE ASSET MANAGEMENT LLC 47,500 296,000 0.92%
21 WELLS FARGO & COMPANY/MN 47,352 295,000 0.91%
22 GEODE CAPITAL MANAGEMENT, LLC 42,046 261,000 0.81%
23 BROOKFIELD Corp /ON/ 37,750 235,000 0.73%
24 TEGEAN CAPITAL MANAGEMENT, LLC 2,500 233,000 0.72%
25 Paloma Partners Management Co 37,225 232,000 0.72%
26 MILLENNIUM MANAGEMENT LLC 33,210 207,000 0.64%
27 PARAMETRIC PORTFOLIO ASSOCIATES LLC 32,533 203,000 0.63%
28 Sterling Capital Management LLC 31,041 193,000 0.60%
29 DUPONT CAPITAL MANAGEMENT CORP 30,400 189,000 0.59%
30 Bank of New York Mellon Corp 27,889 173,000 0.54%
31 CREDIT SUISSE AG/ 26,751 167,000 0.52%
32 TFS CAPITAL LLC 26,448 165,000 0.51%
33 BlackRock Fund Advisors 25,931 162,000 0.50%
34 NORTHERN TRUST CORP 21,758 135,000 0.42%
35 State of New Jersey Common Pension Fund D 20,666 129,000 0.40%
36 DEUTSCHE BANK AG\ 18,226 112,000 0.35%
37 Spot Trading L.L.C 17,800 111,000 0.34% Call
38 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 16,466 103,000 0.32%
39 HighTower Advisors, LLC 13,333 83,000 0.26%
40 SUSQUEHANNA INTERNATIONAL GROUP, LLP 12,000 75,000 0.23% Call
41 Squarepoint Ops LLC 11,100 69,000 0.21%
42 BALYASNY ASSET MANAGEMENT L.P. 10,314 64,000 0.20%
43 PANAGORA ASSET MANAGEMENT INC 5,852 36,000 0.11%
44 EMERALD ACQUISITION LTD. 5,539 35,000 0.11%
45 Nationwide Fund Advisors 4,569 28,000 0.09%
46 MORGAN STANLEY 4,255 26,000 0.08%
47 BANK OF AMERICA CORP /DE/ 2,910 18,000 0.06%
48 UBS Group AG 2,492 16,000 0.05%
49 NEW YORK STATE COMMON RETIREMENT FUND 2,612 16,000 0.05%
50 BARCLAYS PLC 1,636 10,000 0.03%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.