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IO

ION Geophysical Corporation

Delisted

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

Name Holding Trade Value Shares
Change
Change in
Stake
GCM
1
Gates Capital Management
New York
$14.8M -$2.19M -187,573 -15%
Renaissance Technologies
2
Renaissance Technologies
New York
$10.2M -$3.75M -320,674 -31%
Invesco
3
Invesco
Georgia
$10.2M +$176K +15,016 +2%
BlackRock
4
BlackRock
New York
$9.65M -$185K -15,849 -2%
Deutsche Bank
5
Deutsche Bank
Germany
$7.78M +$3.58M +305,649 +131%
Vanguard Group
6
Vanguard Group
Pennsylvania
$7.04M +$2.4M +204,781 +72%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$6.78M +$374K +31,989 +7%
Neuberger Berman Group
8
Neuberger Berman Group
New York
$6.59M +$441K +37,688 +9%
State Street
9
State Street
Massachusetts
$2.42M +$32.3K +2,763 +2%
Northern Trust
10
Northern Trust
Illinois
$2.16M +$13K +1,108 +0.7%
BCM
11
Bridgeway Capital Management
Texas
$1.88M -$551K -47,089 -27%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$1.79M +$272K +23,266 +23%
SIM
13
Spark Investment Management
New York
$1.6M +$361K +30,887 +39%
Wells Fargo
14
Wells Fargo
California
$1.05M +$198K +16,915 +30%
RA
15
Royce & Associates
New York
$1.04M
Bank of New York Mellon
16
Bank of New York Mellon
New York
$1M -$983 -84 -0.1%
PAM
17
Panagora Asset Management
Massachusetts
$945K
Two Sigma Advisers
18
Two Sigma Advisers
New York
$730K
RJFSA
19
Raymond James Financial Services Advisors
Florida
$657K +$52.7K +4,500 +11%
Group One Trading
20
Group One Trading
Illinois
$568K +$461K +39,354 New
TA
21
Teachers Advisors
New York
$391K +$2.47K +211 +0.8%
Charles Schwab
22
Charles Schwab
California
$373K +$69.9K +5,976 +30%
EGM
23
Engineers Gate Manager
New York
$355K +$96.2K +8,217 +50%
PPA
24
Parametric Portfolio Associates
Washington
$330K +$61.3K +5,238 +30%
TCIM
25
TIAA CREF Investment Management
New York
$306K -$3.01K -257 -1%