ORBITAL SCIENCES CORP

CUSIP: 685564106 Class: COM

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

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

Q2 2014
Shares 12,789 Value ($000) $378 Avg Close — Range —
Q1 2014
Shares 149,407 Value ($000) $4,168 Avg Close — Range —
Q4 2013
Shares 176,016 Value ($000) $4,101 Avg Close — Range —
Q3 2013
Shares 87,904 Value ($000) $1,862 Avg Close — Range —