DUPONT CAPITAL MANAGEMENT CORP - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is and the CUSIP is 462044AJ7. A total of 10 filers reported holding ION GEOPHYSICAL CORP in Q3 2021. The put-call ratio across all filers is - and the average weighting 3.9%.

Quarter-by-quarter ownership
DUPONT CAPITAL MANAGEMENT CORP ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q1 2022$570,000
-22.3%
1,044,0000.0%0.02%
-11.5%
Q4 2021$734,000
-18.7%
1,044,0000.0%0.03%
-7.1%
Q3 2021$903,000
-14.8%
1,044,0000.0%0.03%
+12.0%
Q2 2021$1,060,0001,044,0000.02%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q3 2021
NameSharesValueWeighting ↓
SABBY MANAGEMENT, LLC 3,150,000$272,551,00036.84%
Gates Capital Management 70,479,000$60,524,0001.67%
CVI Holdings, LLC 3,135,000$2,713,0000.17%
DUPONT CAPITAL MANAGEMENT CORP 1,044,000$903,0000.03%
SHEPHERD KAPLAN KROCHUK, LLC 74,000$64,0000.02%
WOLVERINE ASSET MANAGEMENT LLC 1,941,000$1,740,0000.02%
Neuberger Berman Group LLC 3,537,000$3,078,0000.00%
BANK OF AMERICA CORP /DE/ 12,000$10,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
DEUTSCHE BANK AG\ 1,133,000$980,0000.00%
View complete list of ION GEOPHYSICAL CORP shareholders