AON PLC

CUSIP: 037389103 Class: COM

Zurcher Kantonalbank (Zurich Cantonalbank)'s Holding History (CIK: 0001368163)

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

Q1 2012
Shares 6,611 Value ($000) $324 Avg Close — Range —
Q4 2011
Shares 216,640 Value ($000) $10,139 Avg Close — Range —