Rock Springs Capital Management LP Q3 2020 Filing

Filed November 16, 2020

Portfolio Value

$3.9B

Holdings

148

Report Date

Q3 2020

Filing Type

13F-HR

All Holdings (148 positions)

#	Stock	Shares	Value	% Portfolio
101	PRTAPROTHENA CORP PLC	1,025,207	$10.2M	0.26%
102	RYTMRHYTHM PHARMACEUTICALS INC	464,086	$10.1M	0.26%
103	TXG10X GENOMICS INC	76,000	$9.5M	0.24%
104	—RADIUS HEALTH INC	814,208	$9.2M	0.23%
105	—CHIASMA INC	2,144,225	$9.2M	0.23%
106	—PARATEK PHARMACEUTICALS INC	1,673,414	$9.1M	0.23%
107	NRIXNURIX THERAPEUTICS INC	257,514	$9.0M	0.23%
108	—TRANSLATE BIO INC	642,646	$8.7M	0.22%
109	—GAMIDA CELL LTD	2,016,656	$8.4M	0.21%
110	JAZZJAZZ PHARMACEUTICALS PLC	57,500	$8.2M	0.21%
111	—INTERSECT ENT INC	500,000	$8.2M	0.21%
112	WSTWEST PHARMACEUTICAL SVSC INC	28,500	$7.8M	0.20%
113	LEGNLEGEND BIOTECH CORP	252,138	$7.8M	0.20%
114	—ZOGENIX INC	415,982	$7.5M	0.19%
115	—IMARA INC	358,943	$7.3M	0.19%
116	—MYOVANT SCIENCES LTD	512,711	$7.2M	0.18%
117	ANNXANNEXON INC	236,811	$7.2M	0.18%
118	DVAXDYNAVAX TECHNOLOGIES CORP	1,647,920	$7.1M	0.18%
119	MGNXMACROGENICS INC	262,641	$6.6M	0.17%
120	—ODONATE THERAPEUTICS INC	489,432	$6.6M	0.17%
121	INSM 1.75 01/15/25INSMED INC	6,000,000	$6.5M	0.17%
122	BCELATRECA INC	450,830	$6.3M	0.16%
123	NGMUSDNGM BIOPHARMACEUTICALS INC	360,454	$5.7M	0.15%
124	XENEXENON PHARMACEUTICALS INC	515,711	$5.7M	0.14%
125	5E7ITEOS THERAPEUTICS INC	226,681	$5.6M	0.14%
126	GDRXGOODRX HLDGS INC	100,000	$5.6M	0.14%
127	—ACELRX PHARMACEUTICALS INC	3,773,585	$5.4M	0.14%
128	ACRSACLARIS THERAPEUTICS INC	2,076,307	$5.3M	0.14%
129	GRTXGALERA THERAPEUTICS INC	567,552	$5.1M	0.13%
130	—PANACEA ACQUISITION CORP	402,088	$4.8M	0.12%
131	—PHASEBIO PHARMACEUTICALS INC	1,313,174	$4.6M	0.12%
132	ANABANAPTYSBIO INC	309,113	$4.6M	0.12%
133	CYTKCYTOKINETICS INC	206,495	$4.5M	0.11%
134	—OBSEVA SA	1,434,652	$3.6M	0.09%
135	PSTXUSDPOSEIDA THERAPEUTICS INC	367,499	$3.3M	0.08%
136	—GLOBAL CORD BLOOD CORPORATIO	904,800	$3.2M	0.08%
137	TVTX 2.5 09/15/25RETROPHIN INC	3,250,000	$2.8M	0.07%
138	PASGPASSAGE BIO INC	206,036	$2.7M	0.07%
139	VRTXVERTEX PHARMACEUTICALS INC	9,000	$2.4M	0.06%
140	1K0IGM BIOSCIENCES INC	19,762	$1.5M	0.04%
141	NBIX 2.25 05/15/24NEUROCRINE BIOSCIENCES INC	1,000,000	$1.4M	0.04%
142	—THERAVANCE BIOPHARMA INC	1,500,000	$1.3M	0.03%
143	—FIVE PRIME THERAPEUTICS INC	271,585	$1.3M	0.03%
144	—RADIUS HEALTH INC	1,500,000	$1.2M	0.03%
145	—PACIRA BIOSCIENCES	1,000,000	$1.2M	0.03%
146	NVRO 2.75 04/01/25NEVRO CORP	500,000	$775K	0.02%
147	—NABRIVA THERAPEUTICS PLC	1,067,664	$569K	0.01%
148	BMY-RBRISTOL-MYERS SQUIBB CO	185,150	$417K	0.01%

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