TESARO INC

CUSIP: 881569107 Class: COM

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

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

Q2 2018
Shares 77,132 Value ($000) $3,430 Avg Close — Range —
Q1 2018
Shares 76,063 Value ($000) $4,346 Avg Close — Range —
Q4 2017
Shares 47,840 Value ($000) $3,965 Avg Close — Range —
Q3 2017
Shares 47,203 Value ($000) $6,094 Avg Close — Range —
Q2 2017
Shares 46,914 Value ($000) $6,561 Avg Close — Range —
Q1 2017
Shares 46,924 Value ($000) $7,220 Avg Close — Range —
Q4 2016
Shares 91,994 Value ($000) $12,371 Avg Close — Range —
Q3 2016
Shares 100,194 Value ($000) $10,043 Avg Close — Range —
Q2 2016
Shares 196,651 Value ($000) $16,529 Avg Close — Range —
Q1 2016
Shares 285,107 Value ($000) $12,553 Avg Close — Range —
Q4 2015
Shares 281,563 Value ($000) $14,731 Avg Close — Range —
Q3 2015
Shares 283,503 Value ($000) $11,368 Avg Close — Range —
Q2 2015
Shares 316,861 Value ($000) $18,628,258 Avg Close — Range —
Q1 2015
Shares 346,057 Value ($000) $19,863,671 Avg Close — Range —
Q4 2014
Shares 335,466 Value ($000) $12,475,980 Avg Close — Range —
Q3 2014
Shares 374,274 Value ($000) $10,075 Avg Close — Range —