ADURO BIOTECH INC

CUSIP: 00739L101 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q1 2016
Shares 159,738 Value ($000) $2,046 Avg Close — Range —
Q4 2015
Shares 157,732 Value ($000) $4,439 Avg Close — Range —
Q3 2015
Shares 71,272 Value ($000) $1,380 Avg Close — Range —
Q2 2015
Shares 71,317 Value ($000) $2,163,045 Avg Close — Range —