TOWERS WATSON & CO

CUSIP: 891894107 Class: CL A

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q4 2015
Shares 1,317,994 Value ($000) $169,310 Avg Close — Range —
Q3 2015
Shares 1,781,246 Value ($000) $209,083 Avg Close — Range —