TESARO INC

CUSIP: 881569107 Class: COM

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

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

Q1 2018
Shares 42,893 Value ($000) $2,451 Avg Close — Range —
Q4 2017
Shares 42,893 Value ($000) $3,555 Avg Close — Range —
Q1 2017
Shares 66,000 Value ($000) $10,155 Avg Close — Range —
Q4 2016
Shares 112,200 Value ($000) $15,089 Avg Close — Range —
Q3 2016
Shares 242,300 Value ($000) $24,288 Avg Close — Range —