Rock Springs Capital Management LP Q2 2024 Filing

Filed August 14, 2024

Portfolio Value

$3.3T

Holdings

110

Report Date

Q2 2024

Filing Type

13F-HR

All Holdings (110 positions)

#StockSharesValue% PortfolioType
1
2L9BLUEPRINT MEDICINES CORP
2,517,417$271.3B8.17%Call
2
UNHUNITEDHEALTH GROUP INC
275,000$140.0B4.22%
3
ISRGINTUITIVE SURGICAL INC
298,500$132.8B4.00%
4
NBIXNEUROCRINE BIOSCIENCES INC
940,000$129.4B3.90%
5
LLYELI LILLY & CO
121,500$110.0B3.31%
6
ARGXARGENX SE
229,250$98.6B2.97%
7
ACHCACADIA HEALTHCARE COMPANY IN
1,177,500$79.5B2.39%
8
RAREULTRAGENYX PHARMACEUTICAL IN
1,924,072$79.1B2.38%
9
EVHEVOLENT HEALTH INC
4,077,500$78.0B2.35%
10
MDGLMADRIGAL PHARMACEUTICALS INC
245,499$68.8B2.07%
11
BSXBOSTON SCIENTIFIC CORP
817,500$63.0B1.89%
12
FRPTFRESHPET INC
480,000$62.1B1.87%
13
ALNYALNYLAM PHARMACEUTICALS INC
250,000$60.8B1.83%
14
MIRMMIRUM PHARMACEUTICALS INC
1,772,038$60.6B1.82%
15
MRUSMERUS N V
1,001,073$59.2B1.78%
16
IDXXIDEXX LABS INC
119,500$58.2B1.75%
17
AGLAGILON HEALTH INC
8,900,000$58.2B1.75%
18
DC4DEXCOM INC
500,000$56.7B1.71%
19
HUMHUMANA INC
147,408$55.1B1.66%
20
IM8NINSMED INC
808,356$54.2B1.63%
21
RYTMRHYTHM PHARMACEUTICALS INC
1,280,493$52.6B1.58%
22
TCE2CELLDEX THERAPEUTICS INC NEW
1,398,994$51.8B1.56%
23
PHRPHREESIA INC
2,417,500$51.3B1.54%
24
EWEDWARDS LIFESCIENCES CORP
550,000$50.8B1.53%
25
XENEXENON PHARMACEUTICALS INC
1,272,877$49.6B1.49%
26
WSTWEST PHARMACEUTICAL SVSC INC
145,500$47.9B1.44%
27
PENPENUMBRA INC
265,000$47.7B1.44%
28
EXASEXACT SCIENCES CORP
1,081,500$45.7B1.38%
29
AGIOAGIOS PHARMACEUTICALS INC
1,044,261$45.0B1.36%
30
SRPTSAREPTA THERAPEUTICS INC
284,000$44.9B1.35%
31
IRTCIRHYTHM TECHNOLOGIES INC
397,500$42.8B1.29%
32
GPCRSTRUCTURE THERAPEUTICS INC
1,065,462$41.8B1.26%Call
33
ASNDASCENDIS PHARMA A/S
290,000$39.6B1.19%
34
PODDINSULET CORP
195,000$39.4B1.18%
35
TVTXTRAVERE THERAPEUTICS INC
4,482,265$36.8B1.11%
36
AZTAAZENTA INC
696,000$36.6B1.10%
37
RVMDREVOLUTION MEDICINES INC
943,195$36.6B1.10%
38
KYMRKYMERA THERAPEUTICS INC
1,163,973$34.7B1.05%
39
MREOMEREO BIOPHARMA GROUP PLC
9,283,492$33.4B1.01%
40
WRBYWARBY PARKER INC
2,080,000$33.4B1.01%
41
IMVTIMMUNOVANT INC
1,185,654$31.3B0.94%
42
AFWALIGN TECHNOLOGY INC
127,500$30.8B0.93%
43
AKROAKERO THERAPEUTICS INC
1,074,261$25.2B0.76%
44
JNJJOHNSON & JOHNSON
170,000$24.8B0.75%
45
LFSTLIFESTANCE HEALTH GROUP INC
4,827,700$23.7B0.71%
46
ZLABZAI LAB LTD
1,297,873$22.5B0.68%
47
PCRXPACIRA BIOSCIENCES INC
785,000$22.5B0.68%
48
LEGNLEGEND BIOTECH CORP
505,786$22.4B0.67%
49
BCRXBIOCRYST PHARMACEUTICALS INC
3,619,258$22.4B0.67%
50
NVONOVO-NORDISK A S
147,500$21.1B0.63%
51
OSCROSCAR HEALTH INC
1,251,500$19.8B0.60%
52
NUVLNUVALENT INC
255,989$19.4B0.58%
53
KRYSKRYSTAL BIOTECH INC
105,569$19.4B0.58%
54
INSPINSPIRE MED SYS INC
130,000$17.4B0.52%
55
INZYINOZYME PHARMA INC
3,698,374$16.5B0.50%
56
DYNDYNE THERAPEUTICS INC
461,028$16.3B0.49%
57
DVAXDYNAVAX TECHNOLOGIES CORP
1,292,637$14.5B0.44%
58
PHVSPHARVARIS N V
756,931$14.2B0.43%
59
IMCRIMMUNOCORE HLDGS PLC
419,030$14.2B0.43%
60
VERAVERA THERAPEUTICS INC
381,192$13.8B0.42%
61
CRNXCRINETICS PHARMACEUTICALS IN
289,400$13.0B0.39%
62
PRTAPROTHENA CORP PLC
625,048$12.9B0.39%
63
OLINK HLDG AB
500,000$12.7B0.38%
64
CRLCHARLES RIV LABS INTL INC
60,250$12.4B0.37%
65
BMRNBIOMARIN PHARMACEUTICAL INC
151,000$12.4B0.37%
66
AM6AMICUS THERAPEUTICS INC
1,218,580$12.1B0.36%
67
NVROEURNEVRO CORP
1,381,500$11.6B0.35%
68
CGEMCULLINAN THERAPEUTICS INC
658,338$11.5B0.35%
69
ELVNENLIVEN THERAPEUTICS INC
428,571$10.0B0.30%
70
JSPRJASPER THERAPEUTICS INC
404,335$9.2B0.28%
71
NVV1NOVAVAX INC
675,000$8.5B0.26%
72
ACCDEURACCOLADE INC
2,290,000$8.2B0.25%
73
EDAEDAP TMS S A
1,475,000$8.0B0.24%
74
SWTXSPRINGWORKS THERAPEUTICS INC
199,855$7.5B0.23%
75
NMRANEUMORA THERAPEUTICS INC.
760,007$7.5B0.22%
76
APLTAPPLIED THERAPEUTICS INC
1,555,004$7.3B0.22%
77
AUPHAURINIA PHARMACEUTICALS INC
1,179,740$6.7B0.20%
78
MERSANA THERAPEUTICS INC
3,046,782$6.1B0.18%
79
BEAMBEAM THERAPEUTICS INC
249,923$5.9B0.18%
80
ABOSACUMEN PHARMACEUTICALS INC
2,300,059$5.6B0.17%
81
CMPXCOMPASS THERAPEUTICS INC
5,513,788$5.5B0.17%
82
APLSAPELLIS PHARMACEUTICALS INC
140,700$5.4B0.16%
83
GOSS 5 06/01/27GOSSAMER BIO INC
9,573,000$4.7B0.14%
84
FULCFULCRUM THERAPEUTICS INC
727,673$4.5B0.14%
85
MGNXMACROGENICS INC
1,053,647$4.5B0.13%
86
MLYSMINERALYS THERAPEUTICS INC
378,932$4.4B0.13%
87
BHVNBIOHAVEN LTD
127,558$4.4B0.13%
88
PLRXPLIANT THERAPEUTICS INC
384,996$4.1B0.12%
89
LUNGPULMONX CORP
652,400$4.1B0.12%
90
CATXPERSPECTIVE THERAPEUTICS INC
401,196$4.0B0.12%
91
AUTLAUTOLUS THERAPEUTICS PLC
1,032,988$3.6B0.11%
92
EPIEURESSA PHARMA INC
677,005$3.6B0.11%
93
ACRSACLARIS THERAPEUTICS INC
2,753,495$3.0B0.09%
94
GOSSGOSSAMER BIO INC
3,266,960$2.9B0.09%
95
TVTX 2.5 09/15/25TRAVERE THERAPEUTICS INC
3,250,000$2.9B0.09%
96
XLOXILIO THERAPEUTICS INC
3,003,259$2.8B0.09%
97
SGMTSAGIMET BIOSCIENCES INC
787,808$2.7B0.08%
98
CYPHLEAP THERAPEUTICS INC
1,266,546$2.5B0.07%
99
ADAPYADAPTIMMUNE THERAPEUTICS PLC
2,425,468$2.4B0.07%
100
VIGLVIGIL NEUROSCIENCE INC
471,958$1.9B0.06%
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