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IO

ION Geophysical Corporation
IO

Delisted

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

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Name Holding Trade Value Shares
Change 		Change in
Stake
ARTA
101
A.R.T. Advisors
New York
$175K +$181K +1,938 New
PA
102
Profund Advisors
Maryland
$170K +$176K +1,881 New
RG
103
Renaissance Group
Kentucky
$166K +$171K +1,835 New
HCM
104
Highlander Capital Management
New Jersey
$160K +$165K +1,767 New
Capital Fund Management (CFM)
105
Capital Fund Management (CFM)
France
$157K +$162K +1,740 New
SIP
106
Stoneridge Investment Partners
Pennsylvania
$154K +$159K +1,702 New
DC
107
Deere & Company
Illinois
$149K +$154K +1,646 New
OA
108
OFI Advisors
Pennsylvania
$144K +$148K +1,590 New
HI
109
HBK Investments
Texas
$126K +$131K +1,400 New
TD Asset Management
110
TD Asset Management
Ontario, Canada
$122K +$126K +1,353 New
IAM
111
ICM Asset Management
Washington
$116K +$120K +1,290 New
ZCM
112
Zebra Capital Management
Connecticut
$111K +$114K +1,224 New
Tudor Investment Corp
113
Tudor Investment Corp
Connecticut
$107K +$111K +1,187 New
WS
114
Wedbush Securities
California
$102K +$105K +1,126 New
MSA
115
Mason Street Advisors
Wisconsin
$101K +$104K +1,116 New
WAM
116
World Asset Management
Michigan
$97K +$100K +1,075 New
VRS
117
Virginia Retirement Systems
Virginia
$89K +$92.1K +987 New
Susquehanna International Group
118
Susquehanna International Group
Pennsylvania
$89K +$92.3K +989 New
Two Sigma Advisers
119
Two Sigma Advisers
New York
$86K +$88.3K +946 New
PI
120
PineBridge Investments
New York
$83K +$85.8K +919 New
CC
121
Cipher Capital
New York
$82K +$84.6K +907 New
CIBC Asset Management
122
CIBC Asset Management
Ontario, Canada
$76K +$78.4K +840 New
MAA
123
Mraz Amerine & Associates
California
$76K +$79K +847 New
Cambridge Investment Research Advisors
124
Cambridge Investment Research Advisors
Iowa
$72K +$73.9K +792 New
ClearBridge Investments
125
ClearBridge Investments
New York
$70K +$71.9K +771 New
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