RIO TINTO PLC

Ticker: RIO CUSIP: 767204100 Class: COM

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q1 2015
Shares 554,499 Value ($000) $22,956,000 Avg Close — Range —
Q4 2014
Shares 180,000 Value ($000) $8,291,000 Avg Close — Range —