Rock Springs Capital Management’s TESARO, Inc. TSRO Stock Holding History

Rock Springs Capital Management’s Portfolio TSRO Stock Details TSRO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q3	–	Sell	-40,000	Closed	-$3.36M	–	146
2016 Q2	$3.36M	Buy	+40,000	New	+$1.78M	0.25%	102

Other funds holding TSRO

TAL

TIG Advisors LLC New York $2.16B AUM 72.99% 1-Year Est. Return

IUHSA

Itau Unibanco Holding S.A. Sao Paulo, Brazil $4.31B AUM 46.57% 1-Year Est. Return

Rock Springs Capital Management's TSRO Position: Q1 2019 in Review

Rock Springs Capital Management sold out of TESARO, Inc. (TSRO) in Q1 2019, closing a stake of 601,700 shares — an estimated $44.7M sold.

Rock Springs Capital Management first reported a position in TSRO in Q4 2013 and held it in 21 quarters. The position peaked at $82.5M in Q4 2016. 2 funds tracked by Wall St. Rank hold TSRO as of Q1 2019.

Rock Springs Capital Management reported no remaining TESARO, Inc. position as of Q1 2019 after selling out during the quarter.
Rock Springs Capital Management sold 601,700 TESARO, Inc. shares in Q1 2019, an estimated $44.7M.
Rock Springs Capital Management first reported a position in TESARO, Inc. in Q4 2013 and held it in 21 quarters.
Rock Springs Capital Management's TESARO, Inc. position peaked at $82.5M in Q4 2016.
2 funds tracked by Wall St. Rank held TESARO, Inc. as of Q1 2019.

Based on Rock Springs Capital Management's 13F filing for Q1 2019, filed 15 May 2019.