TESARO INC

CUSIP: 881569107 Class: COM

Senator Investment Group LP's Holding History (CIK: 0001443689)

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

Q3 2017
Shares 400,000 Value ($000) $51,640 Avg Close — Range —
Q2 2017
Shares 10,000 Value ($000) $1,399 Avg Close — Range —
Q1 2017
Shares 500,000 Value ($000) $76,935 Avg Close — Range —
Q4 2016
Shares 275,000 Value ($000) $36,982 Avg Close — Range —