CAM
IO

Cortina Asset Management’s ION Geophysical Corporation IO Stock Holding History

Cortina Asset Management’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
2013
Q4 		– Sell
-81,625
Closed -$6.37M – 274
2013
Q3 		$6.37M Sell
81,625
-11,192
-12% -$920K 0.25% 140
2013
Q2 		$8.38M Buy
+92,817
New +$8.66M 0.33% 113

Other funds holding IO

Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
SDJVC
St. Denis J. Villere & Co New Orleans, Louisiana $907M AUM 10.61% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BFA
BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
BIT
BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Cortina Asset Management's IO Position: Q4 2013 in Review

Cortina Asset Management sold out of ION Geophysical Corporation (IO) in Q4 2013, closing a stake of 81,625 shares — an estimated $6.37M sold.

Cortina Asset Management first reported a position in IO in Q2 2013 and held it in 2 quarters. The position peaked at $8.38M in Q2 2013. 137 funds tracked by Wall St. Rank hold IO as of Q4 2013.

  • Cortina Asset Management reported no remaining ION Geophysical Corporation position as of Q4 2013 after selling out during the quarter.
  • Cortina Asset Management sold 81,625 ION Geophysical Corporation shares in Q4 2013, an estimated $6.37M.
  • Cortina Asset Management first reported a position in ION Geophysical Corporation in Q2 2013 and held it in 2 quarters.
  • Cortina Asset Management's ION Geophysical Corporation position peaked at $8.38M in Q2 2013.
  • 137 funds tracked by Wall St. Rank held ION Geophysical Corporation as of Q4 2013.

Based on Cortina Asset Management's 13F filing for Q4 2013, filed 12 Feb 2014.