Rock Springs Capital Management’s THORATEC CORPORATION THOR Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2015 Q4	–	Sell	-120,000	Closed	-$7.59M	–	136
2015 Q3	$7.59M	Sell	120,000 -412,500	-77%	-$24.5M	0.62%	58
2015 Q2	$23.7M	Buy	532,500 +17,500	+3%	+$766K	1.73%	15
2015 Q1	$21.6M	Sell	515,000 -18,500	-3%	-$706K	2.02%	14
2014 Q4	$17.3M	Buy	533,500 +12,500	+2%	+$364K	2.03%	14
2014 Q3	$13.9M	Buy	521,000 +28,800	+6%	+$818K	2.15%	12
2014 Q2	$17.2M	Buy	492,200 +91,200	+23%	+$3.04M	3.08%	7
2014 Q1	$14.4M	Buy	401,000 +126,000	+46%	+$4.52M	3.31%	7
2013 Q4	$10.1M	Buy	+275,000	New	+$10.8M	3.6%	7

Other funds holding THOR

MCM

Manchester Capital Management Manchester, Vermont $694M AUM 22.34% 1-Year Est. Return

CCS

Crosspoint Capital Strategies Orinda, California $50.4M AUM 15.37% 1-Year Est. Return

Rock Springs Capital Management's THOR Position: Q4 2015 in Review

Rock Springs Capital Management sold out of THORATEC CORPORATION (THOR) in Q4 2015, closing a stake of 120,000 shares — an estimated $7.59M sold.

Rock Springs Capital Management first reported a position in THOR in Q4 2013 and held it in 8 quarters. The position peaked at $23.7M in Q2 2015. 2 funds tracked by Wall St. Rank hold THOR as of Q4 2015.

Rock Springs Capital Management reported no remaining THORATEC CORPORATION position as of Q4 2015 after selling out during the quarter.
Rock Springs Capital Management sold 120,000 THORATEC CORPORATION shares in Q4 2015, an estimated $7.59M.
Rock Springs Capital Management first reported a position in THORATEC CORPORATION in Q4 2013 and held it in 8 quarters.
Rock Springs Capital Management's THORATEC CORPORATION position peaked at $23.7M in Q2 2015.
2 funds tracked by Wall St. Rank held THORATEC CORPORATION as of Q4 2015.

Based on Rock Springs Capital Management's 13F filing for Q4 2015, filed 16 Feb 2016.