BlackRock Group’s ION Geophysical Corporation IO Stock Holding History

BlackRock Group’s Portfolio IO Stock Details IO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2015 Q4	–	Sell	-12,787	Closed	-$75K	–	3083
2015 Q3	$75K	Sell	12,787 -466	-4%	-$4.92K	﹤0.01%	2770
2015 Q2	$213K	Buy	13,253 +1,898	+17%	+$50.9K	﹤0.01%	2562
2015 Q1	$370K	Buy	11,355 +799	+8%	+$28.7K	﹤0.01%	2298
2014 Q4	$435K	Buy	10,556 +2,644	+33%	+$104K	﹤0.01%	2283
2014 Q3	$332K	Sell	7,912 -7,072	-47%	-$378K	﹤0.01%	2311
2014 Q2	$949K	Buy	14,984 +1,850	+14%	+$117K	﹤0.01%	1865
2014 Q1	$829K	Buy	13,134 +422	+3%	+$23.1K	﹤0.01%	2069
2013 Q4	$629K	Sell	12,712 -16,157	-56%	-$980K	﹤0.01%	2151
2013 Q3	$2.25M	Buy	28,869 +18,752	+185%	+$1.54M	﹤0.01%	1416
2013 Q2	$914K	Buy	+10,117	New	+$944K	﹤0.01%	1823

Other funds holding IO

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

CPS

Counsel Portfolio Services Mississauga, Ontario, Canada $1.01B AUM 2.83% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

BFA

BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

BlackRock Group's IO Position: Q4 2015 in Review

BlackRock Group sold out of ION Geophysical Corporation (IO) in Q4 2015, closing a stake of 12,787 shares — an estimated $75K sold.

BlackRock Group first reported a position in IO in Q2 2013 and held it in 10 quarters. The position peaked at $2.25M in Q3 2013. 88 funds tracked by Wall St. Rank hold IO as of Q4 2015.

BlackRock Group reported no remaining ION Geophysical Corporation position as of Q4 2015 after selling out during the quarter.
BlackRock Group sold 12,787 ION Geophysical Corporation shares in Q4 2015, an estimated $75K.
BlackRock Group first reported a position in ION Geophysical Corporation in Q2 2013 and held it in 10 quarters.
BlackRock Group's ION Geophysical Corporation position peaked at $2.25M in Q3 2013.
88 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q4 2015.

Based on BlackRock Group's 13F filing for Q4 2015, filed 11 Feb 2016.