AMERICAN CENTURY COMPANIES INC - ION GEOPHYSICAL CORP ownership

ION GEOPHYSICAL CORP's ticker is IO and the CUSIP is 462044207. A total of 3 filers reported holding ION GEOPHYSICAL CORP in Q3 2023. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
AMERICAN CENTURY COMPANIES INC ownership history of ION GEOPHYSICAL CORP
ValueSharesWeighting
Q1 2019$252,00017,4460.00%
Other shareholders
ION GEOPHYSICAL CORP shareholders Q3 2023
NameSharesValueWeighting ↓
Gates Capital Management 1,212,408$6,280,0000.35%
New Jersey Better Educational Savings Trust 22,000$114,0000.15%
NJ State Employees Deferred Compensation Plan 48,000$249,0000.05%
Spark Investment Management LLC 79,800$413,0000.03%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 177,305$918,0000.01%
Engineers Gate Manager LP 16,334$85,0000.01%
Renaissance Technologies 1,026,523$5,317,0000.01%
A.R.T. Advisors, LLC 17,445$90,0000.01%
Point72 Hong Kong Ltd 1,893$10,0000.01%
PDT Partners, LLC 16,300$84,0000.01%
View complete list of ION GEOPHYSICAL CORP shareholders