BANK OF MONTREAL /CAN/ - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 67 filers reported holding ION GEOPHYSICAL CORP in Q4 2016. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
BANK OF MONTREAL /CAN/ ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q1 2020$026
+73.3%
0.00%
Q2 2019$0
-100.0%
15
-89.8%
0.00%
Q4 2018$1,000
-50.0%
147
+5.8%
0.00%
Q3 2018$2,000
-98.2%
139
-96.9%
0.00%
Q2 2018$109,000
+10800.0%
4,463
+1590.5%
0.00%
Q1 2017$1,000
-50.0%
2640.0%0.00%
Q4 2016$2,0000.0%2640.0%0.00%
Q3 2016$2,0000.0%2640.0%0.00%
Q2 2016$2,0000.0%2640.0%0.00%
Q1 2016$2,0002640.00%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q4 2016
NameSharesValueWeighting ↓
Gates Capital Management 1,301,604$20,240,0000.51%
New Jersey Better Educational Savings Trust 16,000$249,0000.25%
NJ State Employees Deferred Compensation Plan 39,000$606,0000.10%
Spark Investment Management LLC 64,800$1,007,0000.06%
GSA CAPITAL PARTNERS LLP 43,988$684,0000.04%
SYSTEMATIC FINANCIAL MANAGEMENT LP 83,195$1,294,0000.03%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 206,405$3,210,0000.03%
Renaissance Technologies 1,080,082$16,795,0000.02%
O'SHAUGHNESSY ASSET MANAGEMENT, LLC 37,669$583,0000.01%
PDT Partners, LLC 16,300$253,0000.01%
View complete list of ION GEOPHYSICAL CORP shareholders