IO

ION Geophysical Corporation
IO

Overview Fund Activity
Delisted

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

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77 hedge funds and large institutions have $190M invested in ION Geophysical Corporation in 2018 Q2 according to their latest regulatory filings, with 23 funds opening new positions, 29 increasing their positions, 14 reducing their positions, and 19 closing their positions.

Holders
77
Holders Change
+4
Holders Change %
+5.48%
% of All Funds
1.77%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
23
Increased
29
Reduced
14
Closed
19
Calls
$7.1M
Puts
$1.03M
Net Calls
+$6.07M
Net Calls Change
+$1.57M

Top Buyers

1
BlackRock
1
BlackRock
New York
$16.6M
2
GCM
2
Gates Capital Management
New York
$28.4M
3
State Street
3
State Street
Massachusetts
$3.98M
4
PAM
4
Panagora Asset Management
Massachusetts
$3.32M
5
GCP
5
GSA Capital Partners
United Kingdom
$3.1M

Top Sellers

1
HRCM
1
Hood River Capital Management
Florida
$0
2
MWNA
2
Marshall Wace North America
New York
$0
3
Millennium Management
3
Millennium Management
New York
$0
4
Goldman Sachs
4
Goldman Sachs
New York
$323K
5
AIM
5
Alambic Investment Management
California
$1.35M
Name Market Value Shares Shares
Change 		Shares
Change %
GCM
1
Gates Capital Management
New York
$28.4M 1,168,987 +307,143 +36%
Renaissance Technologies
2
Renaissance Technologies
New York
$27.2M 1,118,982 -674 -0.1%
Invesco
3
Invesco
Georgia
$20.6M 845,833 +37,737 +5%
BlackRock
4
BlackRock
New York
$16.6M 682,211 +506,791 +289%
Vanguard Group
5
Vanguard Group
Pennsylvania
$11.8M 487,542 +66,046 +16%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$10.4M 426,584 +54,421 +15%
Neuberger Berman Group
7
Neuberger Berman Group
New York
$5.61M 230,967 +52,179 +29%
BCM
8
Bridgeway Capital Management
Texas
$5.29M 217,805 – –
Deutsche Bank
9
Deutsche Bank
Germany
$3.98M 163,644 +43,788 +37%
State Street
10
State Street
Massachusetts
$3.98M 163,565 +150,153 +1,120%
Arrowstreet Capital
11
Arrowstreet Capital
Massachusetts
$3.74M 154,075 -14,336 -9%
PAM
12
Panagora Asset Management
Massachusetts
$3.32M 136,652 +136,652 New
Northern Trust
13
Northern Trust
Illinois
$3.26M 134,115 +95,507 +247%
SIM
14
Spark Investment Management
New York
$3.18M 130,800 – –
Geode Capital Management
15
Geode Capital Management
Massachusetts
$3.18M 130,805 +64,835 +98%
GCP
16
GSA Capital Partners
United Kingdom
$3.1M 127,593 +127,593 New
JPMorgan Chase & Co
17
JPMorgan Chase & Co
New York
$2.64M 108,537 +48,373 +80%
Acadian Asset Management
18
Acadian Asset Management
Massachusetts
$2.49M 102,350 -48,852 -32%
Citadel Advisors
19
Citadel Advisors
Florida
$2.14M 88,158 +63,378 +256%
Fuller & Thaler Asset Management
20
Fuller & Thaler Asset Management
California
$1.9M 78,175 -60 -0.1%
RA
21
Royce & Associates
New York
$1.75M 71,880 – –
SFM
22
Systematic Financial Management
New Jersey
$1.52M 62,515 +62,515 New
BIM
23
Bogle Investment Management
Massachusetts
$1.42M 58,264 +45,458 +355%
Two Sigma Advisers
24
Two Sigma Advisers
New York
$1.38M 56,791 +37,713 +198%
OAM
25
Oxford Asset Management
United Kingdom
$1.36M 56,030 -72,736 -56%
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