Rock Springs Capital Management’s Merck MRK Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2018 Q1	–	Sell	-891,534	Closed	-$47.9M	–	155
2017 Q4	$47.9M	Buy	891,534 +97,150	+12%	+$5.39M	2.17%	7
2017 Q3	$48.5M	Hold	794,384	–	–	2.24%	10
2017 Q2	$48.6M	Buy	794,384 +8,384	+1%	+$510K	2.45%	7
2017 Q1	$47.7M	Hold	786,000	–	–	2.75%	4
2016 Q4	$44.2M	Buy	786,000 +170,300	+28%	+$9.97M	2.95%	4
2016 Q3	$36.7M	Buy	+615,700	New	+$36M	2.3%	8
2015 Q1	–	Sell	-471,600	Closed	-$25.6M	–	107
2014 Q4	$25.6M	Sell	471,600 -26,200	-5%	-$1.46M	2.99%	7
2014 Q3	$28.2M	Hold	497,800	–	–	4.36%	4
2014 Q2	$27.5M	Buy	+497,800	New	+$27.2M	4.93%	2

Other funds holding MRK

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Rock Springs Capital Management's MRK Position: Q1 2018 in Review

Rock Springs Capital Management sold out of Merck (MRK) in Q1 2018, closing a stake of 891,534 shares — an estimated $47.9M sold.

Rock Springs Capital Management first reported a position in MRK in Q2 2014 and held it in 9 quarters. The position peaked at $48.6M in Q2 2017. 1,993 funds tracked by Wall St. Rank hold MRK as of Q1 2018.

Rock Springs Capital Management reported no remaining Merck position as of Q1 2018 after selling out during the quarter.
Rock Springs Capital Management sold 891,534 Merck shares in Q1 2018, an estimated $47.9M.
Rock Springs Capital Management first reported a position in Merck in Q2 2014 and held it in 9 quarters.
Rock Springs Capital Management's Merck position peaked at $48.6M in Q2 2017.
1,993 funds tracked by Wall St. Rank held Merck as of Q1 2018.

Based on Rock Springs Capital Management's 13F filing for Q1 2018, filed 15 May 2018.