IO

ION Geophysical Corporation
IO

Overview Fund Activity
Delisted

IO was delisted on the 18th of May, 2022.

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142 hedge funds and large institutions have $575M invested in ION Geophysical Corporation in 2013 Q3 according to their latest regulatory filings, with 15 funds opening new positions, 62 increasing their positions, 46 reducing their positions, and 25 closing their positions.

Holders
142
Holders Change
-11
Holders Change %
-7.19%
% of All Funds
4.61%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
15
Increased
62
Reduced
46
Closed
25
Calls
$480K
Puts
$1.37M
Net Calls
-$887K
Net Calls Change
-$81K

Top Buyers

1
Invesco
1
Invesco
Georgia
$109M
2
SDJVC
2
St. Denis J. Villere & Co
Louisiana
$71.5M
3
BIT
3
BlackRock Institutional Trust
California
$23.8M
4
BFA
4
BlackRock Fund Advisors
California
$36.7M
5
BA
5
BlackRock Advisors
Delaware
$3.61M

Top Sellers

1
GC
1
GW Capital
Washington
$0
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$35M
3
RHJA
3
Rice Hall James & Associates
California
$0
4
Principal Financial Group
4
Principal Financial Group
Iowa
$3.71M
5
PA
5
Pinnacle Associates
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Renaissance Technologies
76
Renaissance Technologies
New York
$421K 5,393 -5,261 -49%
WMSA
77
Weiss Multi-Strategy Advisers
New York
$401K 5,139 +1,967 +62%
VKH
78
Virtu KCG Holdings
New York
$351K 4,501 +4,501 New
CAM
79
Capstone Asset Management
Texas
$332K 4,254 +105 +3%
Citadel Advisors
80
Citadel Advisors
Florida
$325K 4,167 +3,861 +1,262%
WFM
81
Wilmington Funds Management
Delaware
$301K 3,856 +182 +5%
PA
82
Profund Advisors
Maryland
$299K 3,835 +1,954 +104%
MAA
83
Managed Account Advisors
New Jersey
$297K 3,806 +1,513 +66%
Bank of Montreal
84
Bank of Montreal
Ontario, Canada
$292K 3,754 +1,605 +75%
NTCOC
85
Northern Trust Company of Connecticut
Connecticut
$290K 3,715 +223 +6%
TRSOTSOK
86
Teachers Retirement System of the State of Kentucky
Kentucky
$288K 3,687 -5,926 -62%
SO
87
STRS Ohio
Ohio
$287K 3,677 -830 -18%
Tudor Investment Corp
88
Tudor Investment Corp
Connecticut
$268K 3,440 +2,253 +190%
GCP
89
GSA Capital Partners
United Kingdom
$246K 3,157 +346 +12%
Thrivent Financial for Lutherans
90
Thrivent Financial for Lutherans
Minnesota
$231K 2,967 +27 +0.9%
Public Employees Retirement Association of Colorado
91
Public Employees Retirement Association of Colorado
Colorado
$228K 2,920 – –
Nomura Holdings
92
Nomura Holdings
Japan
$224K 2,869 -18,384 -87%
BJ
93
BlackRock Japan
Japan
$221K 2,833 +2,833 New
Citigroup
94
Citigroup
New York
$201K 2,579 -3,622 -58%
BNP Paribas Financial Markets
95
BNP Paribas Financial Markets
France
$187K 2,396 -701 -23%
OA
96
OFI Advisors
Pennsylvania
$178K 2,285 +695 +44%
GC
97
Guggenheim Capital
Illinois
$169K 2,159 -1,363 -39%
SIP
98
Stoneridge Investment Partners
Pennsylvania
$167K 2,135 +433 +25%
HCM
99
Highlander Capital Management
New Jersey
$138K 1,767 – –
PM
100
Parametrica Management
Hong Kong
$124K 1,593 +903 +131%
2 3
4
5 6