ION GEOPHYSICAL CORP

CUSIP: 462044108 Class: COM

WELLS FARGO & COMPANY/MN's Holding History (CIK: 0000072971)

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

Q4 2015
Shares 4,093,596 Value ($000) $2,059 Avg Close — Range —
Q3 2015
Shares 4,336,829 Value ($000) $1,692 Avg Close — Range —
Q2 2015
Shares 5,208,028 Value ($000) $5,573 Avg Close — Range —
Q1 2015
Shares 5,370,292 Value ($000) $11,654 Avg Close — Range —
Q4 2014
Shares 6,074,495 Value ($000) $16,705 Avg Close — Range —
Q3 2014
Shares 6,179,027 Value ($000) $17,239 Avg Close — Range —
Q2 2014
Shares 6,614,082 Value ($000) $27,910 Avg Close — Range —
Q1 2014
Shares 7,675,453 Value ($000) $32,313 Avg Close — Range —
Q4 2013
Shares 8,304,252 Value ($000) $27,404 Avg Close — Range —
Q3 2013
Shares 8,891,337 Value ($000) $46,235 Avg Close — Range —
Q2 2013
Shares 9,282,401 Value ($000) $55,880 Avg Close — Range —