ION GEOPHYSICAL CORP

CUSIP: 462044207 Class: COMMON STOCK

NORGES BANK's Holding History (CIK: 0001374170)

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

Q4 2016
Shares 84,745 Value ($000) $508 Avg Close — Range —
Q3 2016
Shares 84,745 Value ($000) $554 Avg Close — Range —
Q2 2016
Shares 84,745 Value ($000) $528 Avg Close — Range —
Q1 2016
Shares 132,245 Value ($000) $1,069 Avg Close — Range —