WILLIS GROUP HOLDINGS PUBLIC

CUSIP: G96666105 Class: SHS

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q3 2014
Shares 5,800 Value ($000) $240 Avg Close — Range —
Q2 2014
Shares 5,800 Value ($000) $251 Avg Close — Range —
Q1 2014
Shares 5,800 Value ($000) $256 Avg Close — Range —
Q4 2013
Shares 5,800 Value ($000) $260 Avg Close — Range —
Q3 2013
Shares 5,800 Value ($000) $251 Avg Close — Range —
Q2 2013
Shares 5,800 Value ($000) $237 Avg Close — Range —