AON PLC

CUSIP: G0408V102 Class: SHS CL A

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

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

Q4 2017
Shares 1,593 Value ($000) $213 Avg Close — Range —
Q3 2017
Shares 1,593 Value ($000) $233 Avg Close — Range —