ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

M&T Bank Corp's Holding History (CIK: 0000036270)

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

Q2 2015
Shares 17,953 Value ($000) $19 Avg Close — Range —
Q3 2014
Shares 11,423 Value ($000) $32 Avg Close — Range —