Cormorant Asset Management’s TESARO, Inc. TSRO Stock Holding History

Cormorant Asset 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
2019 Q1	–	Sell	-900,000	Closed	-$66.8M	–	79
2018 Q4	$66.8M	Sell	900,000 -350,000	-28%	-$16.8M	5.43%	4
2018 Q3	$48.8M	Buy	1,250,000 +700,000	+127%	+$24.7M	3.17%	9
2018 Q2	$24.5M	Buy	550,000 +200,000	+57%	+$9.71M	1.81%	21
2018 Q1	$20M	Buy	+350,000	New	+$22.5M	1.49%	19
2016 Q3	–	Sell	-362,875	Closed	-$30.5M	–	91
2016 Q2	$30.5M	Buy	362,875 +71,625	+25%	+$3.19M	4.33%	4
2016 Q1	$12.8M	Hold	291,250	–	–	1.93%	17
2015 Q4	$15.2M	Hold	291,250	–	–	1.82%	19
2015 Q3	$11.7M	Hold	291,250	–	–	1.87%	16
2015 Q2	$17.1M	Buy	291,250 +100,000	+52%	+$5.74M	2.28%	12
2015 Q1	$11M	Sell	191,250 -108,750	-36%	-$5.12M	1.7%	16
2014 Q4	$11.2M	Hold	300,000	–	–	1.72%	19
2014 Q3	$8.08M	Hold	300,000	–	–	1.66%	13
2014 Q2	$9.33M	Hold	300,000	–	–	2.47%	13
2014 Q1	$8.84M	Hold	300,000	–	–	2.03%	19
2013 Q4	$8.47M	Buy	+300,000	New	+$11.1M	2.46%	17

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

Cormorant Asset Management's TSRO Position: Q1 2019 in Review

Cormorant Asset Management sold out of TESARO, Inc. (TSRO) in Q1 2019, closing a stake of 900,000 shares — an estimated $66.8M sold.

Cormorant Asset Management first reported a position in TSRO in Q4 2013 and held it in 15 quarters. The position peaked at $66.8M in Q4 2018. 2 funds tracked by Wall St. Rank hold TSRO as of Q1 2019.

Cormorant Asset Management reported no remaining TESARO, Inc. position as of Q1 2019 after selling out during the quarter.
Cormorant Asset Management sold 900,000 TESARO, Inc. shares in Q1 2019, an estimated $66.8M.
Cormorant Asset Management first reported a position in TESARO, Inc. in Q4 2013 and held it in 15 quarters.
Cormorant Asset Management's TESARO, Inc. position peaked at $66.8M in Q4 2018.
2 funds tracked by Wall St. Rank held TESARO, Inc. as of Q1 2019.

Based on Cormorant Asset Management's 13F filing for Q1 2019, filed 15 May 2019.