Rock Springs Capital Management LP Q3 2021 Filing

Filed November 15, 2021

Portfolio Value

$4.8B

Holdings

153

Report Date

Q3 2021

Filing Type

13F-HR

All Holdings (153 positions)

#	Stock	Shares	Value	% Portfolio
101	APLTAPPLIED THERAPEUTICS INC	701,680	$11.6M	0.24%
102	PRLDPRELUDE THERAPEUTICS INC	362,359	$11.3M	0.24%
103	ADAPYADAPTIMMUNE THERAPEUTICS PLC	2,189,788	$11.3M	0.24%
104	TREURTRILLIUM THERAPEUTICS INC	628,500	$11.0M	0.23%
105	—ORION ACQUISITION CORP	1,000,000	$9.9M	0.21%
106	INZYINOZYME PHARMA INC	850,015	$9.9M	0.21%
107	SPRBSPRUCE BIOSCIENCES INC	1,617,601	$9.7M	0.20%
108	AM6AMICUS THERAPEUTICS INC	1,012,506	$9.7M	0.20%
109	NRIXNURIX THERAPEUTICS INC	318,450	$9.5M	0.20%
110	DAWNDAY ONE BIOPHARMACEUTICALS I	376,439	$8.9M	0.19%
111	XENEXENON PHARMACEUTICALS INC	583,100	$8.9M	0.19%
112	290ACHINOOK THERAPEUTICS INC	688,149	$8.8M	0.18%
113	OKURRENEO PHARMACEUTICALS INC	1,143,185	$8.5M	0.18%
114	—GAMIDA CELL LTD	2,147,400	$8.4M	0.18%
115	—PARATEK PHARMACEUTICALS INC	1,665,014	$8.1M	0.17%
116	RYTMRHYTHM PHARMACEUTICALS INC	612,180	$8.0M	0.17%
117	—F-STAR THERAPEUTICS INC	1,054,232	$7.7M	0.16%
118	—KINNATE BIOPHARMA INC	332,986	$7.7M	0.16%
119	CGENCOMPUGEN LTD	1,283,790	$7.7M	0.16%
120	—FUSION PHARMACEUTICALS INC	948,327	$7.5M	0.16%
121	—EARGO INC	975,000	$6.6M	0.14%
122	FATEFATE THERAPEUTICS INC	110,000	$6.5M	0.14%
123	STTKSHATTUCK LABS INC	313,499	$6.4M	0.13%
124	—PHASEBIO PHARMACEUTICALS INC	1,843,764	$5.7M	0.12%
125	—ATHIRA PHARMA INC	552,252	$5.2M	0.11%
126	TBPHTHERAVANCE BIOPHARMA INC	687,500	$5.1M	0.11%
127	DSGNDESIGN THERAPEUTICS INC	334,050	$4.9M	0.10%
128	EDAEDAP TMS S A	760,900	$4.9M	0.10%
129	ATAIATAI LIFE SCIENCES NV	317,628	$4.7M	0.10%
130	GRTXGALERA THERAPEUTICS INC	568,252	$4.6M	0.10%
131	OVASUSDTEMPEST THERAPEUTICS INC	310,161	$4.5M	0.09%
132	EPIEURESSA PHARMA INC	508,044	$4.1M	0.09%
133	—ACELRX PHARMACEUTICALS INC	3,819,402	$3.9M	0.08%
134	INNVINNOVAGE HLDG CORP	525,000	$3.5M	0.07%
135	—IMARA INC	829,102	$3.4M	0.07%
136	TVTX 2.5 09/15/25TRAVERE THERAPEUTICS INC	3,250,000	$3.3M	0.07%
137	—BCLS ACQUISITION CORP	309,000	$3.1M	0.06%
138	BCELATRECA INC	459,830	$2.9M	0.06%
139	NUVBNUVATION BIO INC	236,609	$2.4M	0.05%
140	PSTXUSDPOSEIDA THERAPEUTICS INC	289,754	$2.1M	0.04%
141	—FS DEVELOPMENT CORP II	209,332	$2.1M	0.04%
142	—EUCRATES BIOMEDICAL ACQU COR	206,000	$2.0M	0.04%
143	—TURMERIC ACQUISITION CORP	206,000	$2.0M	0.04%
144	—POPULATION HEALTH INVS CO IN	201,044	$2.0M	0.04%
145	—JIYA ACQUISITION CORP	206,200	$2.0M	0.04%
146	MLTXHELIX ACQUISITION CORP	154,500	$1.5M	0.03%
147	—THERAVANCE BIOPHARMA INC	1,500,000	$1.4M	0.03%
148	—RADIUS HEALTH INC	1,500,000	$1.4M	0.03%
149	NBIX 2.25 05/15/24NEUROCRINE BIOSCIENCES INC	1,000,000	$1.3M	0.03%
150	—PACIRA BIOSCIENCES INC	1,000,000	$1.0M	0.02%
151	APLSAPELLIS PHARMACEUTICALS INC	26,458	$872K	0.02%
152	NVRO 2.75 04/01/25NEVRO CORP	500,000	$675K	0.01%
153	NUVB/WSNUVATION BIO INC	134,028	$343K	0.01%

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