Rock Springs Capital Management LP Q4 2016 Filing

Filed February 14, 2017

Portfolio Value

$1.5B

Holdings

133

Report Date

Q4 2016

Filing Type

13F-HR

All Holdings (133 positions)

#	Stock	Shares	Value	% Portfolio
101	TTPHEURTETRAPHASE PHARMACEUTICALS I	698,000	$2.8M	0.19%
102	ADAPYADAPTIMMUNE THERAPEUTICS PLC	675,000	$2.7M	0.18%
103	HRCHILL ROM HLDGS INC	47,500	$2.7M	0.18%
104	EX9EXELIXIS INC	175,000	$2.6M	0.17%
105	MDGLMADRIGAL PHARMACEUTICALS INC	174,891	$2.6M	0.17%
106	—DBV TECHNOLOGIES S A	73,000	$2.6M	0.17%
107	SCYXEURSCYNEXIS INC	760,000	$2.4M	0.16%
108	RIGLUSDRIGEL PHARMACEUTICALS INC	1,000,000	$2.4M	0.16%
109	—EGALET CORP	300,000	$2.3M	0.15%
110	AGLEUSDAEGLEA BIOTHERAPEUTICS INC	524,089	$2.3M	0.15%
111	MCRB1EURSERES THERAPEUTICS INC	220,000	$2.2M	0.15%
112	ZBHZIMMER BIOMET HLDGS INC	21,100	$2.2M	0.15%
113	HQYHEALTHEQUITY INC	50,000	$2.0M	0.14%
114	—GENOCEA BIOSCIENCES INC	480,000	$2.0M	0.13%
115	—BLUEBIRD BIO INC	28,500	$1.8M	0.12%
116	—THERAVANCE BIOPHARMA INC	1,500,000	$1.7M	0.11%
117	NVCRNOVOCURE LTD	214,316	$1.7M	0.11%
118	GBTUSDGLOBAL BLOOD THERAPEUTICS IN	96,500	$1.4M	0.09%
119	—TANDEM DIABETES CARE INC	595,000	$1.3M	0.09%
120	—DIMENSION THERAPEUTICS INC	271,370	$1.2M	0.08%
121	—MYOVANT SCIENCES LTD	89,600	$1.1M	0.07%
122	—NIVALIS THERAPEUTICS INC	489,000	$1.1M	0.07%
123	—WRIGHT MED GROUP INC	1,000,000	$1.0M	0.07%
124	BHCVALEANT PHARMACEUTICALS INTL	71,400	$1.0M	0.07%
125	NVAXNOVAVAX INC	820,000	$1.0M	0.07%
126	—ATYR PHARMA INC	475,000	$1.0M	0.07%
127	—CHIASMA INC	492,500	$960K	0.06%
128	PRGOPERRIGO CO PLC	9,300	$774K	0.05%
129	DVAXDYNAVAX TECHNOLOGIES CORP	165,000	$652K	0.04%
130	—CERULEAN PHARMA INC	625,000	$443K	0.03%
131	INFIQINFINITY PHARMACEUTICALS INC	270,000	$365K	0.02%
132	—OREXIGEN THERAPEUTICS INC	165,300	$288K	0.02%
133	—ANTHERA PHARMACEUTICALS INC	380,000	$247K	0.02%

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