INDEPENDENCE CONTRACT DRIL I

CUSIP: 453415309 Class: COM

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q2 2016
Shares 15,336 Value ($000) $83 Avg Close — Range —
Q3 2015
Shares 367,898 Value ($000) $1,832 Avg Close — Range —
Q2 2015
Shares 319,696 Value ($000) $2,836 Avg Close — Range —
Q1 2015
Shares 11,273 Value ($000) $79 Avg Close — Range —
Q4 2014
Shares 11,273 Value ($000) $59 Avg Close — Range —
Q3 2014
Shares 11,039 Value ($000) $130 Avg Close — Range —