ION GEOPHYSICAL CORP - COM (IO)

CUSIP: 462044108

Q4 2013 13F Holders as of 31 Dec 2013

Type / Class
Equity / COM
Total 13F shares
112,114,211
Share change
-661,389
Total reported value
$369,914,726
Put/Call ratio
290%
Price per share
$3.30
Number of holders
134
Value change
-$2,716,830
Number of buys
3
Number of sells
3

Quarterly Holders Quick Answers

What is CUSIP 462044108?
CUSIP 462044108 identifies IO - ION GEOPHYSICAL CORP - COM in SEC institutional holdings data.

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Institutional Holders of ION GEOPHYSICAL CORP - COM (IO) as of Q4 2013

As of 31 Dec 2013, ION GEOPHYSICAL CORP - COM (IO) was held by 134 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 112,114,211 shares. The largest 10 holders included Invesco Ltd., VILLERE ST DENIS J & CO LLC, WELLS FARGO & COMPANY/MN, VANGUARD GROUP INC, BlackRock Fund Advisors, State Street Corp, BlackRock Institutional Trust Company, N.A., DIMENSIONAL FUND ADVISORS LP, Neuberger Berman Group LLC, and PRICE T ROWE ASSOCIATES INC /MD/. This page lists 134 institutional shareholders reporting positions in this security for the Q4 2013 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.