NORTHERN TRUST CORP - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 41 filers reported holding ION GEOPHYSICAL CORP in Q2 2020. The put-call ratio across all filers is 237.00 and the average weighting 0.0%.

Quarter-by-quarter ownership
NORTHERN TRUST CORP ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q1 2022$46,000
-2.1%
52,813
-2.2%
0.00%
Q4 2021$47,000
-32.9%
54,022
+1.9%
0.00%
Q3 2021$70,000
-36.9%
52,9960.0%0.00%
Q2 2021$111,000
+50.0%
52,996
+54.1%
0.00%
Q1 2021$74,000
-10.8%
34,393
+0.2%
0.00%
Q4 2020$83,000
+29.7%
34,337
-19.3%
0.00%
Q3 2020$64,000
-25.6%
42,546
+15.9%
0.00%
Q2 2020$86,000
+83.0%
36,714
-2.2%
0.00%
Q1 2020$47,000
-85.6%
37,539
-0.3%
0.00%
Q4 2019$326,000
-7.1%
37,646
-2.5%
0.00%
Q3 2019$351,000
-69.4%
38,594
-72.9%
0.00%
Q2 2019$1,148,000
-46.9%
142,629
-4.8%
0.00%
-100.0%
Q1 2019$2,163,000
+181.3%
149,754
+0.7%
0.00%
Q4 2018$769,000
-67.1%
148,646
-1.1%
0.00%
-100.0%
Q3 2018$2,338,000
-28.3%
150,367
+12.1%
0.00%0.0%
Q2 2018$3,259,000
+211.3%
134,115
+247.4%
0.00%
Q1 2018$1,047,000
+65.9%
38,608
+20.7%
0.00%
Q4 2017$631,000
+136.3%
31,983
+14.2%
0.00%
Q3 2017$267,000
+120.7%
28,014
+0.6%
0.00%
Q2 2017$121,000
-10.4%
27,843
+0.1%
0.00%
Q1 2017$135,000
-16.7%
27,826
+3.0%
0.00%
Q4 2016$162,000
-20.2%
27,027
-9.0%
0.00%
Q3 2016$203,000
+50.4%
29,689
+36.5%
0.00%
Q2 2016$135,000
-81.7%
21,758
-76.1%
0.00%
Q1 2016$736,00091,1230.00%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q2 2020
NameSharesValueWeighting ↓
Alambic Investment Management, L.P. 73,913$674,0000.51%
Gates Capital Management 539,855$4,923,0000.21%
Spark Investment Management LLC 100,000$912,0000.12%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 130,216$1,188,0000.02%
Squarepoint Ops LLC 98,634$900,0000.01%
Quantamental Technologies LLC 2,371$22,0000.01%
Renaissance Technologies 901,519$8,222,0000.01%
ROYCE & ASSOCIATES LP 71,880$656,0000.01%
Neuberger Berman Group LLC 480,187$4,377,0000.01%
ACADIAN ASSET MANAGEMENT LLC 106,808$974,0000.00%
View complete list of ION GEOPHYSICAL CORP shareholders