SPARK LP : IO [Rocket]

News + Filings

SPARK LP > IO

Date	Name	Ticker	Shares	Change	Value	Change	Price
03/31/2012	ION GEOPHYSICAL CORP	IO	70,600	-91,500	455,000	-538,000	$6.44
12/31/2011	ION GEOPHYSICAL CORP	IO	162,100	162,100	993,000	993,000	$6.13
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