ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

GEODE CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001214717)

Note: Option positions (PUT/CALL) are excluded.

Q4 2015
Shares 764,960 Value ($000) $384 Avg Close — Range —
Q3 2015
Shares 765,034 Value ($000) $298 Avg Close — Range —
Q2 2015
Shares 794,639 Value ($000) $849 Avg Close — Range —
Q1 2015
Shares 737,499 Value ($000) $1,600 Avg Close — Range —
Q4 2014
Shares 792,043 Value ($000) $2,178 Avg Close — Range —
Q3 2014
Shares 705,481 Value ($000) $1,968 Avg Close — Range —
Q2 2014
Shares 701,243 Value ($000) $2,959 Avg Close — Range —
Q1 2014
Shares 697,131 Value ($000) $2,934 Avg Close — Range —
Q4 2013
Shares 539,192 Value ($000) $1,778 Avg Close — Range —
Q3 2013
Shares 588,028 Value ($000) $3,058 Avg Close — Range —
Q2 2013
Shares 497,651 Value ($000) $2,996 Avg Close — Range —