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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 (2015Q3)
Original 13F HR (0001172661-15-002063) filed in 2015.11.16
#
Name
Shares
Value ($)
%
Options
Notes
1 ROKA BIOSCIENCE INC 250,000 485 0.04%
2 DBV TECHNOLOGIES S A 25,000 890 0.07%
3 PTC THERAPEUTICS INC 42,960 1,147 0.09%
4 PUMA BIOTECHNOLOGY 15,900 1,198 0.10%
5 KINDRED BIOSCIENCES INC 275,000 1,430 0.12%
6 CONNECTURE INC 365,000 1,664 0.14%
7 BIODEL INC 4,000,000 1,760 0.14%
8 INFINITY PHARMACEUTICALS INC 215,000 1,817 0.15%
9 RAPTOR PHARMACEUTICAL CORP 305,000 1,845 0.15%
10 FIVE PRIME THERAPEUTICS INC 120,000 1,847 0.15%
11 SPARK THERAPEUTICS INCORPORATED 45,700 1,907 0.15% Put
12 XENOPORT INC 555,000 1,926 0.16%
13 DYAX CORP COM CVR 114,500 2,186 0.18%
14 CERULEAN PHARMA INC 625,000 2,288 0.19%
15 ANTHERA PHARMACEUTICALS I 400,000 2,436 0.20%
16 GLOBAL BLOOD THERAPEUTICS INCORPORATED 60,000 2,530 0.21%
17 COMPUGEN LTD 525,000 2,714 0.22%
18 ADR - Nabriva Therapeutics AG- Usd 324,400 3,082 0.25%
19 SCYNEXIS INC 470,000 3,422 0.28%
20 ADVAXIS INC COM NEW 337,000 3,448 0.28%
21 OREXIGEN THERAPEUTICS INC COM 1,650,000 3,482 0.28%
22 CIDARA THERAPEUTICS INC 275,000 3,498 0.28%
23 ASSEMBLY BIOSCIENCES INC 371,000 3,547 0.29%
24 DYNAVAX TECHNOLOGIES CORP 150,000 3,681 0.30%
25 INVITAE CORP 510,000 3,682 0.30%
26 BLUEBIRD BIO INC COM 45,000 3,850 0.31%
27 Egalet Corp 300,000 3,954 0.32%
28 EPIZYME INC COM 310,000 3,987 0.32%
29 Life Technologies Corp 388,996 3,991 0.32%
30 ARATANA THERAPEUTICS INC 485,000 4,103 0.33%
31 FIBROGEN INC 190,000 4,165 0.34%
32 CASTLIGHT HEALTH INC COM CL B 1,000,000 4,200 0.34%
33 GENOCEA BIOSCIENCES INC 650,000 4,453 0.36%
34 THERAPEUTICSMD INC 775,000 4,542 0.37%
35 RELYPSA INC 252,000 4,665 0.38%
36 MACROGENICS INC 218,000 4,670 0.38%
37 ALLERGAN PLC 5,000 4,728 0.38%
38 TANDEM DIABETES CARE INC COM 542,500 4,779 0.39%
39 Ascendis Pharma 270,000 4,779 0.39%
40 NOVAVAX INC COM 715,000 5,055 0.41%
41 AIMMUNE THERAPEUTICS INC COM 200,000 5,064 0.41%
42 ATHENA HEALTH INC. 38,000 5,067 0.41%
43 KITE PHARMA INCORPORATED 91,500 5,095 0.41%
44 REGENERON PHARMACEUTICALS 11,000 5,117 0.42%
45 CHINA CORD BLOOD CORP 880,000 5,298 0.43%
46 BIOMARIN PHARMACEUTICAL INC 50,500 5,319 0.43%
47 SERES THERAPEUTICS INC 180,000 5,335 0.43%
48 INTERCEPT PHARMACEUTICALS INCORPORATED 32,500 5,390 0.44%
49 Intersect ENT Inc 237,500 5,558 0.45%
50 NOVADAQ TECHNOLOGIES INC 540,000 5,632 0.46%
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