RHUMBLINE ADVISERS - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 64 filers reported holding ION GEOPHYSICAL CORP in Q1 2016. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
RHUMBLINE ADVISERS ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q1 2019$201,000
+168.0%
13,887
-4.3%
0.00%
Q4 2018$75,000
-70.7%
14,506
+37.7%
0.00%
-100.0%
Q2 2018$256,000
+113.3%
10,531
-29.2%
0.00%
Q1 2016$120,00014,8830.00%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q1 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