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Institutional Investment Manager
Rock Springs Capital Management LP
Rock Springs Capital Management LP (CIK: 0001595725) incorporated in Delaware, located at 650 South Exeter Street, Baltimore, MD. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q3)
Original 13F HR (0001172661-14-001844) filed in 2014.11.14
#
Name
Shares
Value ($)
%
Options
Notes
1 ABBVIE INC 525,000 30,324 4.69%
2 ACADIA COMPANY COM 203,000 9,846 1.52%
3 AERIE PHARMACEUTICALS INC COM 99,300 2,055 0.32%
4 AETNA INC NEW 106,000 8,586 1.33%
5 AGILENT TECHNOLOGIES INC 72,500 4,131 0.64%
6 ALEXION PHARMACEUTIC 89,750 14,882 2.30%
7 ALLERGAN PLC 87,750 21,172 3.28%
8 AMGEN INC 145,000 20,367 3.15%
9 ATHENA HEALTH INC. 67,750 8,922 1.38%
10 AVALANCHE BIOTECHNOLOGIES IN 7,198 246 0.04%
11 AVANIR PHARMACEUTICALS INC CL 1,100,000 13,112 2.03%
12 Allergan plc 22,750 4,054 0.63%
13 Arrowhead Pharma Inc 115,000 1,699 0.26%
14 BIOGEN INC 61,350 20,295 3.14%
15 CARDINAL HEALTH INC 92,250 6,911 1.07%
16 CATALENT INC 201,000 5,031 0.78%
17 CELGENE CORP 166,000 15,733 2.43%
18 CERULEAN PHARMA INC 85,635 361 0.06%
19 CHINA CORD BLOOD CORP 795,000 3,888 0.60%
20 CIGNA CORPORATION 75,000 6,802 1.05%
21 COOPER COS INC 68,750 10,708 1.66%
22 COVANCE INC 46,000 3,620 0.56%
23 CUBIST PHARMACEUTI 46,500 3,085 0.48%
24 CVS HEALTH CORP 130,000 10,347 1.60%
25 CYMABAY THERAPEUTICS INC 300,000 2,052 0.32%
26 DANAHER CORP DEL 85,000 6,458 1.00%
27 ENTEROMEDICS INC 1,125,000 1,384 0.21%
28 ENVISION HEALTHCARE HLDGS INC 285,500 9,901 1.53%
29 EPIZYME INC COM 131,000 3,551 0.55%
30 FEI COMPANY 47,000 3,545 0.55%
31 FIVE PRIME THERAPEUTICS INC 115,000 1,349 0.21%
32 FLAMEL TECHNOLOGIES SA SPONSORED ADR 735,000 10,518 1.63%
33 GILEAD SCIENCES INC 363,000 38,641 5.98%
34 HCA HOLDINGS INC 320,250 22,584 3.49%
35 HERON THERAPEUTICS INC COM 70,000 583 0.09%
36 HILL ROM HLDGS INC 213,000 8,825 1.37%
37 HUMANA INC 79,500 10,358 1.60%
38 Heartware International, Inc. 82,000 6,366 0.98%
39 ILLUMINA INC 37,000 6,065 0.94%
40 INCYTE CORP 103,000 5,052 0.78%
41 INFINITY PHARMACEUTICALS INC 210,000 2,818 0.44%
42 INNOVIVA INC COM 190,000 3,247 0.50%
43 INTERCEPT PHARMACEUTICALS INCORPORATED 15,100 3,574 0.55%
44 INTUITIVE SURGICAL INC 18,500 8,544 1.32%
45 JAZZ PHARMACEUTICALS PLC 18,250 2,930 0.45%
46 KINDRED BIOSCIENCES INC 275,000 2,544 0.39%
47 KITE PHARMA INCORPORATED 82,474 2,351 0.36%
48 LIVANOVA PLC 67,000 3,428 0.53%
49 MCKESSON CORP 128,500 25,015 3.87%
50 MEDICINES CO 148,250 3,309 0.51%
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