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 %
California State Teachers Retirement System (CalSTRS)
51
California State Teachers Retirement System (CalSTRS)
California
$1.25M 15,961 +491 +3%
ACM
52
Argent Capital Management
Missouri
$1.17M 15,043 – –
U
53
UBS
Switzerland
$1.16M 14,819 +8,113 +121%
RhumbLine Advisers
54
RhumbLine Advisers
Massachusetts
$1.12M 14,379 -164 -1%
CS
55
Credit Suisse
Switzerland
$1.11M 14,268 +3,369 +31%
PPA
56
Parametric Portfolio Associates
Washington
$1.1M 14,070 +719 +5%
TA
57
Teachers Advisors
New York
$1.01M 12,983 +267 +2%
TC
58
TFS Capital
Pennsylvania
$871K 11,165 -19,190 -63%
QI
59
Quotient Investors
New York
$748K 9,587 +860 +10%
Comerica Bank
60
Comerica Bank
Texas
$692K 8,869 +399 +5%
TPSF
61
Texas Permanent School Fund
Texas
$675K 8,648 -381 -4%
State of Tennessee, Department of Treasury
62
State of Tennessee, Department of Treasury
Tennessee
$664K 8,507 +8,507 New
VOYA Investment Management
63
VOYA Investment Management
Georgia
$636K 8,153 -6,658 -45%
State Board of Administration of Florida Retirement System
64
State Board of Administration of Florida Retirement System
Florida
$580K 7,438 -652 -8%
ASRS
65
Arizona State Retirement System
Arizona
$567K 7,278 +7 +0.1%
Swiss National Bank
66
Swiss National Bank
Switzerland
$564K 7,233 -380 -5%
MLICM
67
Metropolitan Life Insurance Company (MetLife)
New York
$562K 7,200 – –
NFA
68
Nationwide Fund Advisors
Ohio
$550K 7,055 -4,022 -36%
AIG
69
American International Group
New York
$534K 6,852 +71 +1%
PAM
70
Panagora Asset Management
Massachusetts
$508K 6,516 +6,516 New
WA
71
WealthTrust Axiom
Pennsylvania
$506K 6,494 – –
Barclays
72
Barclays
United Kingdom
$499K 6,658 -4,155 -38%
WCM
73
Wisconsin Capital Management
Wisconsin
$494K 6,333 -14,847 -70%
Millennium Management
74
Millennium Management
New York
$474K 6,076 +28 +0.5%
ProShare Advisors
75
ProShare Advisors
Maryland
$453K 5,808 -235 -4%
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