ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

TD Asset Management Inc's Holding History (CIK: 0001056053)

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

Q4 2013
Shares 24,500 Value ($000) $81 Avg Close — Range —
Q3 2013
Shares 22,600 Value ($000) $118 Avg Close — Range —
Q2 2013
Shares 20,300 Value ($000) $122 Avg Close — Range —