Rock Springs Capital Management LP Q1 2020 Filing

Filed May 15, 2020

Portfolio Value

$2.4B

Holdings

131

Report Date

Q1 2020

Filing Type

13F-HR

All Holdings (131 positions)

#	Stock	Shares	Value	% Portfolio
101	—PARATEK PHARMACEUTICALS INC	1,526,310	$4.8M	0.20%
102	AKROAKERO THERAPEUTICS INC	225,000	$4.8M	0.20%
103	GRTXGALERA THERAPEUTICS INC	500,000	$4.8M	0.20%
104	TXG10X GENOMICS INC	76,000	$4.7M	0.20%
105	NGMUSDNGM BIOPHARMACEUTICALS INC	351,100	$4.3M	0.18%
106	OSWONESPAWORLD HOLDINGS LIMITED	1,050,000	$4.3M	0.18%
107	ANABANAPTYSBIO INC	300,000	$4.2M	0.18%
108	IMVTIMMUNOVANT INC	250,000	$3.9M	0.16%
109	—MYOVANT SCIENCES LTD	500,000	$3.8M	0.16%
110	AGLEUSDAEGLEA BIOTHERAPEUTICS INC	800,000	$3.7M	0.15%
111	—PHASEBIO PHARMACEUTICALS INC	1,125,000	$3.7M	0.15%
112	PASGPASSAGE BIO INC	225,000	$3.5M	0.15%
113	—OBSEVA SA	1,400,000	$3.4M	0.14%
114	ADAPYADAPTIMMUNE THERAPEUTICS PLC	1,200,000	$3.3M	0.13%
115	AXNX*AXONICS MODULATION TECHNOLOG	125,000	$3.2M	0.13%
116	TREURTRILLIUM THERAPEUTICS INC	750,000	$3.0M	0.13%
117	—GAMIDA CELL LTD	1,000,000	$3.0M	0.12%
118	—GLOBAL CORD BLOOD CORPORATIO	925,000	$2.9M	0.12%
119	—GW PHARMACEUTICALS PLC	30,000	$2.6M	0.11%
120	TVTX 2.5 09/15/25RETROPHIN INC	3,250,000	$2.6M	0.11%
121	ACRSACLARIS THERAPEUTICS INC	1,600,000	$1.7M	0.07%
122	XLRNACCELERON PHARMA INC	17,500	$1.6M	0.07%
123	—THERAVANCE BIOPHARMA INC	1,500,000	$1.4M	0.06%
124	MGNXMACROGENICS INC	230,000	$1.3M	0.06%
125	NBIX 2.25 05/15/24NEUROCRINE BIOSCIENCES INC	1,000,000	$1.3M	0.05%
126	—RADIUS HEALTH INC	1,500,000	$1.1M	0.04%
127	—PACIRA BIOSCIENCES	1,000,000	$966K	0.04%
128	—FIVE PRIME THERAPEUTICS INC	400,000	$908K	0.04%
129	BMY-RBRISTOL-MYERS SQUIBB CO	185,150	$704K	0.03%
130	—NABRIVA THERAPEUTICS PLC	1,050,000	$604K	0.02%
131	CVETUSDCOVETRUS INC	20,683	$168K	0.01%

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