TESARO INC

CUSIP: 881569107 Class: COM

Rock Springs Capital Management LP's Holding History (CIK: 0001595725)

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

Q4 2018
Shares 601,700 Value ($000) $44,676 Avg Close — Range —
Q3 2018
Shares 735,000 Value ($000) $28,672 Avg Close — Range —
Q2 2018
Shares 625,400 Value ($000) $27,812 Avg Close — Range —
Q1 2018
Shares 573,000 Value ($000) $32,741 Avg Close — Range —
Q4 2017
Shares 548,500 Value ($000) $45,454 Avg Close — Range —
Q3 2017
Shares 495,250 Value ($000) $63,937 Avg Close — Range —
Q2 2017
Shares 490,500 Value ($000) $68,601 Avg Close — Range —
Q1 2017
Shares 474,900 Value ($000) $73,073 Avg Close — Range —
Q4 2016
Shares 613,500 Value ($000) $82,503 Avg Close — Range —
Q3 2016
Shares 626,500 Value ($000) $62,800 Avg Close — Range —
Q2 2016
Shares 480,000 Value ($000) $40,344 Avg Close — Range —
Q1 2016
Shares 379,500 Value ($000) $16,709 Avg Close — Range —
Q4 2015
Shares 334,000 Value ($000) $17,475 Avg Close — Range —
Q3 2015
Shares 226,000 Value ($000) $9,063 Avg Close — Range —
Q2 2015
Shares 217,000 Value ($000) $12,757 Avg Close — Range —
Q1 2015
Shares 210,000 Value ($000) $12,054 Avg Close — Range —
Q4 2014
Shares 187,500 Value ($000) $6,973 Avg Close — Range —
Q3 2014
Shares 177,500 Value ($000) $4,778 Avg Close — Range —
Q2 2014
Shares 165,000 Value ($000) $5,133 Avg Close — Range —
Q1 2014
Shares 129,500 Value ($000) $3,818 Avg Close — Range —
Q4 2013
Shares 58,250 Value ($000) $1,645 Avg Close — Range —