Rock Springs Capital Management LP Q3 2024 Filing

Filed November 14, 2024

Portfolio Value

$3.1T

Holdings

109

Report Date

Q3 2024

Filing Type

13F-HR

All Holdings (109 positions)

#StockSharesValue% PortfolioType
1
UNHUNITEDHEALTH GROUP INC
294,250$172.0B5.60%
2
ISRGINTUITIVE SURGICAL INC
270,000$132.6B4.32%
3
ARGXARGENX SE
233,500$126.6B4.12%
4
LLYELI LILLY & CO
142,000$125.8B4.09%
5
RAREULTRAGENYX PHARMACEUTICAL IN
1,978,272$109.9B3.58%
6
NBIXNEUROCRINE BIOSCIENCES INC
939,000$108.2B3.52%
7
EXASEXACT SCIENCES CORP
1,147,500$78.2B2.54%
8
2L9BLUEPRINT MEDICINES CORP
768,776$71.1B2.31%
9
ALNYALNYLAM PHARMACEUTICALS INC
250,000$68.8B2.24%
10
TVTXTRAVERE THERAPEUTICS INC
4,684,476$65.5B2.13%
11
RYTMRHYTHM PHARMACEUTICALS INC
1,228,093$64.3B2.09%
12
MIRMMIRUM PHARMACEUTICALS INC
1,580,488$61.6B2.01%
13
FRPTFRESHPET INC
446,500$61.1B1.99%
14
EVHEVOLENT HEALTH INC
2,070,000$58.5B1.90%
15
MDGLMADRIGAL PHARMACEUTICALS INC
263,062$55.8B1.82%
16
PHRPHREESIA INC
2,282,500$52.0B1.69%
17
XENEXENON PHARMACEUTICALS INC
1,316,477$51.8B1.69%
18
ACHCACADIA HEALTHCARE COMPANY IN
815,000$51.7B1.68%
19
PENPENUMBRA INC
265,000$51.5B1.68%
20
WSTWEST PHARMACEUTICAL SVSC INC
167,750$50.4B1.64%
21
IM8NINSMED INC
683,344$49.9B1.62%
22
KYMRKYMERA THERAPEUTICS INC
1,049,386$49.7B1.62%
23
ASNDASCENDIS PHARMA A/S
325,000$48.5B1.58%
24
HUMHUMANA INC
148,000$46.9B1.53%
25
GPCRSTRUCTURE THERAPEUTICS INC
1,063,910$46.7B1.52%
26
RVMDREVOLUTION MEDICINES INC
1,009,945$45.8B1.49%
27
MRUSMERUS N V
892,549$44.6B1.45%
28
NUVLNUVALENT INC
429,994$44.0B1.43%
29
MREOMEREO BIOPHARMA GROUP PLC
9,534,170$39.2B1.27%
30
BSXBOSTON SCIENTIFIC CORP
460,000$38.5B1.25%
31
SRPTSAREPTA THERAPEUTICS INC
307,500$38.4B1.25%
32
EWEDWARDS LIFESCIENCES CORP
576,900$38.1B1.24%
33
TCE2CELLDEX THERAPEUTICS INC NEW
1,103,778$37.5B1.22%
34
AGLAGILON HEALTH INC
9,096,800$35.8B1.16%
35
DC4DEXCOM INC
524,000$35.1B1.14%
36
IMVTIMMUNOVANT INC
1,221,309$34.8B1.13%
37
ZLABZAI LAB LTD
1,315,673$31.8B1.03%
38
PODDINSULET CORP
134,000$31.2B1.01%
39
AGIOAGIOS PHARMACEUTICALS INC
699,389$31.1B1.01%
40
IRTCIRHYTHM TECHNOLOGIES INC
397,500$29.5B0.96%
41
AFWALIGN TECHNOLOGY INC
114,500$29.1B0.95%
42
BCRXBIOCRYST PHARMACEUTICALS INC
3,622,358$27.5B0.90%
43
INSPINSPIRE MED SYS INC
130,000$27.4B0.89%
44
AKROAKERO THERAPEUTICS INC
933,399$26.8B0.87%
45
AZTAAZENTA INC
532,500$25.8B0.84%
46
LEGNLEGEND BIOTECH CORP
508,932$24.8B0.81%
47
WRBYWARBY PARKER INC
1,439,050$23.5B0.76%
48
SMMTSUMMIT THERAPEUTICS INC
1,040,000$22.8B0.74%
49
LFSTLIFESTANCE HEALTH GROUP INC
3,101,000$21.7B0.71%
50
OSCROSCAR HEALTH INC
1,011,400$21.5B0.70%
51
INZYINOZYME PHARMA INC
3,802,883$19.9B0.65%
52
VERAVERA THERAPEUTICS INC
383,492$17.0B0.55%
53
DYNDYNE THERAPEUTICS INC
461,028$16.6B0.54%
54
NVONOVO-NORDISK A S
132,000$15.7B0.51%
55
ZBIOZENAS BIOPHARMA INC
878,667$14.9B0.48%
56
APLTAPPLIED THERAPEUTICS INC
1,746,449$14.8B0.48%
57
CRNXCRINETICS PHARMACEUTICALS IN
289,400$14.8B0.48%
58
PHVSPHARVARIS N V
756,931$14.0B0.46%
59
AM6AMICUS THERAPEUTICS INC
1,250,280$13.4B0.43%
60
JNJJOHNSON & JOHNSON
80,000$13.0B0.42%
61
CGEMCULLINAN THERAPEUTICS INC
736,914$12.3B0.40%
62
BCAXBICARA THERAPEUTICS INC
445,975$11.4B0.37%
63
ELVNENLIVEN THERAPEUTICS INC
428,571$10.9B0.36%
64
NMRANEUMORA THERAPEUTICS INC.
828,101$10.9B0.36%
65
CYTKCYTOKINETICS INC
206,108$10.9B0.35%
66
BMRNBIOMARIN PHARMACEUTICAL INC
151,000$10.6B0.35%
67
PRTAPROTHENA CORP PLC
625,048$10.5B0.34%
68
CMPXCOMPASS THERAPEUTICS INC
5,629,239$10.4B0.34%
69
KRYSKRYSTAL BIOTECH INC
55,861$10.2B0.33%
70
AUPHAURINIA PHARMACEUTICALS INC
1,179,740$8.6B0.28%
71
JSPRJASPER THERAPEUTICS INC
459,088$8.6B0.28%
72
NVV1NOVAVAX INC
650,000$8.2B0.27%
73
XNCRXENCOR INC
401,013$8.1B0.26%
74
NVROEURNEVRO CORP
1,381,500$7.7B0.25%
75
DVAXDYNAVAX TECHNOLOGIES CORP
605,013$6.7B0.22%
76
SWTXSPRINGWORKS THERAPEUTICS INC
199,855$6.4B0.21%
77
BHVNBIOHAVEN LTD
127,558$6.4B0.21%
78
BEAMBEAM THERAPEUTICS INC
249,923$6.1B0.20%
79
PCRXPACIRA BIOSCIENCES INC
400,000$6.0B0.20%
80
NAMSNEWAMSTERDAM PHARMA COMPANY
353,319$5.9B0.19%
81
MERSANA THERAPEUTICS INC
3,046,782$5.8B0.19%
82
LUNGPULMONX CORP
691,300$5.7B0.19%
83
ABOSACUMEN PHARMACEUTICALS INC
2,300,059$5.7B0.19%
84
CATXPERSPECTIVE THERAPEUTICS INC
414,396$5.5B0.18%
85
GOSS 5 06/01/27GOSSAMER BIO INC
9,573,000$5.0B0.16%
86
PLRXPLIANT THERAPEUTICS INC
384,996$4.3B0.14%
87
EPIEURESSA PHARMA INC
677,005$4.1B0.13%
88
EDAEDAP TMS S A
1,568,000$4.0B0.13%
89
AUTLAUTOLUS THERAPEUTICS PLC
1,032,988$3.7B0.12%
90
MGNXMACROGENICS INC
1,053,647$3.5B0.11%
91
CYPHLEAP THERAPEUTICS INC
1,266,546$3.3B0.11%
92
GOSSGOSSAMER BIO INC
3,266,960$3.2B0.10%
93
ACRSACLARIS THERAPEUTICS INC
2,753,495$3.2B0.10%
94
XLOXILIO THERAPEUTICS INC
3,003,259$2.4B0.08%
95
APLSAPELLIS PHARMACEUTICALS INC
80,000$2.3B0.08%
96
ADAPYADAPTIMMUNE THERAPEUTICS PLC
2,425,468$2.3B0.07%
97
SGMTSAGIMET BIOSCIENCES INC
787,808$2.2B0.07%
98
BMEABIOMEA FUSION INC
181,147$1.8B0.06%
99
CGENCOMPUGEN LTD
989,990$1.8B0.06%
100
VIGLVIGIL NEUROSCIENCE INC
471,958$1.6B0.05%
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