ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

MORGAN STANLEY's Holding History (CIK: 0000895421)

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

Q4 2015
Shares 22,199 Value ($000) $11 Avg Close — Range —
Q3 2015
Shares 20,558 Value ($000) $8 Avg Close — Range —
Q2 2015
Shares 78,313 Value ($000) $83 Avg Close — Range —
Q1 2015
Shares 192,164 Value ($000) $417 Avg Close — Range —
Q4 2014
Shares 19,483 Value ($000) $54 Avg Close — Range —
Q3 2014
Shares 511,604 Value ($000) $1,428 Avg Close — Range —
Q2 2014
Shares 613,256 Value ($000) $2,588 Avg Close — Range —
Q1 2014
Shares 845,437 Value ($000) $3,560 Avg Close — Range —
Q4 2013
Shares 75,192 Value ($000) $248 Avg Close — Range —
Q3 2013
Shares 624,605 Value ($000) $3,249 Avg Close — Range —
Q2 2013
Shares 949,746 Value ($000) $5,717 Avg Close — Range —