Rock Springs Capital Management LP
Securities ▲▼ | Shares | Value ($K) | |||||
|---|---|---|---|---|---|---|---|
Q2 2025 ▲▼ | Q3 2025 ▲▼ | Change ▲▼ | Q2 2025 ▲▼ | Q3 2025 ▲▼ | Weight (%) ▲▼ | Change ▲▼ | |
| TRAVERE THERAPEUTICS INC(TVTX) | 1,908,208 | 2,164,773 | +256,565 | 28,241,478 | 51,738,075 | 3.02% | +23,496,597 |
| MADRIGAL PHARMACEUTICALS INC(MDGL) | 140,296 | 137,746 | -2,550 | 42,459,181 | 63,178,580 | 3.69% | +20,719,399 |
| RHYTHM PHARMACEUTICALS INC(RYTM) | 861,153 | 717,102 | -144,051 | 54,416,258 | 72,420,131 | 4.23% | +18,003,873 |
| CIDARA THERAPEUTICS INC | 134,133 | 249,402 | +115,269 | 6,533,618 | 23,882,736 | 1.40% | +17,349,118 |
| MIRUM PHARMACEUTICALS INC(MIRM) | 818,206 | 761,126 | -57,080 | 41,638,503 | 55,798,147 | 3.26% | +14,159,644 |
| REVOLUTION MEDICINES INC(RVMD) | 1,330,960 | 1,335,270 | +4,310 | 48,966,018 | 62,357,109 | 3.65% | +13,391,091 |
| MINERALYS THERAPEUTICS INC(MLYS) | 324,513 | 408,313 | +83,800 | 4,390,661 | 15,483,229 | 0.91% | +11,092,568 |
| COGENT BIOSCIENCES INC(COGT) | 800,199 | 1,008,308 | +208,109 | 5,745,429 | 14,479,303 | 0.85% | +8,733,874 |
| LENZ THERAPEUTICS INC | 83,982 | 236,227 | +152,245 | 2,461,512 | 11,003,454 | 0.64% | +8,541,942 |
| HEARTFLOW INC(HTFL) | 0 | 250,000 | +250,000 | 0 | 8,415,000 | 0.49% | +8,415,000 |
| ARGENX SE(ARGX) | 175,750 | 142,750 | -33,000 | 96,876,915 | 105,286,690 | 6.15% | +8,409,775 |
| NEWAMSTERDAM PHARMA COMPANY | 536,111 | 595,929 | +59,818 | 9,708,970 | 16,948,221 | 0.99% | +7,239,251 |
| ZENAS BIOPHARMA INC(ZBIO) | 640,467 | 580,677 | -59,790 | 6,206,125 | 12,891,029 | 0.75% | +6,684,904 |
| KYMERA THERAPEUTICS INC(KYMR) | 450,374 | 450,374 | 0 | 19,654,321 | 25,491,168 | 1.49% | +5,836,847 |
| AGIOS PHARMACEUTICALS INC(AGIO) | 989,745 | 958,542 | -31,203 | 32,918,919 | 38,475,876 | 2.25% | +5,556,957 |
| ASCENDIS PHARMA A/S(ASND) | 217,000 | 214,500 | -2,500 | 37,454,200 | 42,644,745 | 2.49% | +5,190,545 |
| XENON PHARMACEUTICALS INC(XENE) | 931,681 | 851,744 | -79,937 | 29,161,615 | 34,197,522 | 2.00% | +5,035,907 |
| MBX BIOSCIENCES INC(MBX) | 0 | 282,624 | +282,624 | 0 | 4,945,920 | 0.29% | +4,945,920 |
| DYNE THERAPEUTICS INC(DYN) | 580,998 | 824,061 | +243,063 | 5,531,101 | 10,424,372 | 0.61% | +4,893,271 |
| PHARVARIS N V | 623,402 | 623,402 | 0 | 10,971,875 | 15,553,880 | 0.91% | +4,582,005 |
| GOSSAMER BIO INC | 3,266,960 | 3,266,960 | 0 | 4,018,361 | 8,592,105 | 0.50% | +4,573,744 |
| BRIDGEBIO PHARMA INC(BBIO) | 0 | 85,000 | +85,000 | 0 | 4,414,900 | 0.26% | +4,414,900 |
| AMICUS THERAPEUTICS INC | 1,960,334 | 1,947,374 | -12,960 | 11,232,714 | 15,345,307 | 0.90% | +4,112,593 |
| ARDELYX INC | 2,286,273 | 2,286,273 | 0 | 8,962,190 | 12,597,364 | 0.74% | +3,635,174 |
| AMYLYX PHARMACEUTICALS INC(AMLX) | 499,764 | 499,764 | 0 | 3,203,487 | 6,791,793 | 0.40% | +3,588,306 |
| OCULAR THERAPEUTIX INC(OCUL) | 0 | 300,000 | +300,000 | 0 | 3,507,000 | 0.21% | +3,507,000 |
| OMADA HEALTH INC(OMDA) | 919,951 | 919,950 | -1 | 16,835,103 | 20,340,095 | 1.19% | +3,504,992 |
| VERA THERAPEUTICS INC(VERA) | 617,396 | 617,396 | 0 | 14,545,850 | 17,941,528 | 1.05% | +3,395,678 |
| ALKERMES PLC(ALKS) | 0 | 106,537 | +106,537 | 0 | 3,196,110 | 0.19% | +3,196,110 |
| IRHYTHM TECHNOLOGIES INC(IRTC) | 242,500 | 235,000 | -7,500 | 37,335,300 | 40,417,650 | 2.36% | +3,082,350 |
| STRUCTURE THERAPEUTICS INC | 1,135,879 | 951,154 | -184,725 | 23,558,130 | 26,632,312 | 1.56% | +3,074,182 |
| TALPHERA INC | 316,460 | 3,589,186 | +3,272,726 | 145,635 | 3,205,861 | 0.19% | +3,060,226 |
| CARIS LIFE SCIENCES INC(CAI) | 793,651 | 793,651 | 0 | 21,206,355 | 24,007,943 | 1.40% | +2,801,588 |
| COMPASS THERAPEUTICS INC | 4,962,955 | 4,474,702 | -488,253 | 12,903,683 | 15,661,457 | 0.92% | +2,757,774 |
| BICARA THERAPEUTICS INC | 336,070 | 370,666 | +34,596 | 3,122,090 | 5,852,816 | 0.34% | +2,730,726 |
| SPDR SERIES TRUST | 151,750 | 151,750 | 0 | 12,584,628 | 15,205,350 | 0.89% | +2,620,722 |
| INSMED INC(INSM) | 525,000 | 385,000 | -140,000 | 52,836,000 | 55,443,850 | 3.24% | +2,607,850 |
| TENET HEALTHCARE CORP(THC) | 130,000 | 125,000 | -5,000 | 22,880,000 | 25,380,000 | 1.48% | +2,500,000 |
| ARCELLX INC | 186,314 | 178,982 | -7,332 | 12,268,777 | 14,694,422 | 0.86% | +2,425,645 |
| CELLDEX THERAPEUTICS INC NEW(CLDX) | 812,653 | 721,538 | -91,115 | 16,537,489 | 18,666,188 | 1.09% | +2,128,699 |
| EXACT SCIENCES CORP(EXK) | 572,000 | 593,500 | +21,500 | 30,396,080 | 32,470,385 | 1.90% | +2,074,305 |
| TARSUS PHARMACEUTICALS INC(TARS) | 373,750 | 288,344 | -85,406 | 15,140,613 | 17,136,284 | 1.00% | +1,995,671 |
| ACLARIS THERAPEUTICS INC | 4,769,309 | 4,609,309 | -160,000 | 6,772,419 | 8,757,687 | 0.51% | +1,985,268 |
| GOSSAMER BIO INC | 0 | 0 | 0 | 4,952,132 | 6,718,513 | 0.39% | +1,766,381 |
| CENTESSA PHARMACEUTICALS PLC | 0 | 69,240 | +69,240 | 0 | 1,679,070 | 0.10% | +1,679,070 |
| SCHOLAR ROCK HLDG CORP(SRRK) | 794,133 | 794,133 | 0 | 28,128,191 | 29,573,513 | 1.73% | +1,445,322 |
| NEUROCRINE BIOSCIENCES INC(NBIX) | 88,800 | 89,750 | +950 | 11,161,272 | 12,599,105 | 0.74% | +1,437,833 |
| ALPHATEC HLDGS INC(ATEC) | 267,500 | 302,500 | +35,000 | 2,969,250 | 4,398,350 | 0.26% | +1,429,100 |
| KORRO BIO INC | 35,719 | 35,719 | 0 | 446,130 | 1,710,583 | 0.10% | +1,264,453 |
| ALNYLAM PHARMACEUTICALS INC(ALNY) | 100,000 | 74,250 | -25,750 | 32,609,000 | 33,858,000 | 1.98% | +1,249,000 |
| SIONNA THERAPEUTICS INC(SION) | 99,429 | 99,429 | 0 | 1,725,093 | 2,924,207 | 0.17% | +1,199,114 |
| MERSANA THERAPEUTICS INC | 0 | 152,586 | +152,586 | 0 | 1,184,067 | 0.07% | +1,184,067 |
| NEWAMSTERDAM PHARMA COMPANY(Call) | 0 | 31,600 | +31,600 | 0 | 898,704 | — | +898,704 |
| EDAP TMS S A | 1,270,000 | 1,270,000 | 0 | 2,095,500 | 2,908,300 | 0.17% | +812,800 |
| THERMO FISHER SCIENTIFIC INC(TMO) | 10,000 | 10,000 | 0 | 4,054,600 | 4,850,200 | 0.28% | +795,600 |
| APELLIS PHARMACEUTICALS INC | 84,300 | 92,000 | +7,700 | 1,459,233 | 2,081,960 | 0.12% | +622,727 |
| APPLIED THERAPEUTICS INC | 2,075,991 | 2,075,991 | 0 | 645,841 | 1,255,767 | 0.07% | +609,926 |
| DANAHER CORPORATION(DHR) | 59,000 | 61,500 | +2,500 | 11,654,860 | 12,192,990 | 0.71% | +538,130 |
| EYEPOINT PHARMACEUTICALS INC(EYPT) | 0 | 31,655 | +31,655 | 0 | 450,767 | 0.03% | +450,767 |
| REGENERON PHARMACEUTICALS(REGN) | 11,300 | 11,300 | 0 | 5,932,500 | 6,353,651 | 0.37% | +421,151 |
| JANUX THERAPEUTICS INC(JANX) | 210,266 | 210,366 | +100 | 4,857,145 | 5,141,345 | 0.30% | +284,200 |
| MERUS N V | 1,063,608 | 597,051 | -466,557 | 55,945,781 | 56,212,352 | 3.29% | +266,571 |
| NEUROGENE INC | 104,339 | 104,339 | 0 | 1,559,868 | 1,808,195 | 0.11% | +248,327 |
| MOONLAKE IMMUNOTHERAPEUTICS(MLTX) | 0 | 28,200 | +28,200 | 0 | 202,194 | 0.01% | +202,194 |
| NOVAVAX INC(NVAX) | 53,900 | 45,000 | -8,900 | 339,570 | 390,150 | 0.02% | +50,580 |
| VAXCYTE INC(PCVX) | 11,100 | 11,100 | 0 | 360,861 | 399,822 | 0.02% | +38,961 |
| CHARLES RIV LABS INTL INC(CRL) | 2,700 | 2,700 | 0 | 409,671 | 422,442 | 0.02% | +12,771 |
| PERSPECTIVE THERAPEUTICS INC | 444,383 | 444,383 | 0 | 1,528,678 | 1,524,234 | 0.09% | -4,444 |
| NUVATION BIO INC(NUVB) | 134,028 | 134,028 | 0 | 36,174 | 27,087 | 0.00% | -9,087 |
| ENLIVEN THERAPEUTICS INC | 701,408 | 686,107 | -15,301 | 14,070,244 | 14,044,610 | 0.82% | -25,634 |
| 89BIO INC | 40,000 | 0 | -40,000 | 392,800 | 0 | — | -392,800 |
| JASPER THERAPEUTICS INC | 545,171 | 1,100,726 | +555,555 | 3,025,699 | 2,619,728 | 0.15% | -405,971 |
| SUMMIT THERAPEUTICS INC(SMMT) | 710,000 | 710,000 | 0 | 15,108,800 | 14,668,600 | 0.86% | -440,200 |
| ADAPTIMMUNE THERAPEUTICS PLC | 2,483,468 | 0 | -2,483,468 | 595,287 | 0 | — | -595,287 |
| AZENTA INC(AZTA) | 530,400 | 540,400 | +10,000 | 16,325,712 | 15,520,288 | 0.91% | -805,424 |
| MERSANA THERAPEUTICS INC | 3,814,684 | 0 | -3,814,684 | 1,129,146 | 0 | — | -1,129,146 |
| SAREPTA THERAPEUTICS INC(SRPT) | 68,600 | 0 | -68,600 | 1,173,060 | 0 | — | -1,173,060 |
| PULMONX CORP | 651,100 | 0 | -651,100 | 1,686,349 | 0 | — | -1,686,349 |
| COMPUGEN LTD | 989,990 | 13,430 | -976,560 | 1,762,182 | 19,742 | 0.00% | -1,742,440 |
| IMMUNOVANT INC(IMVT) | 221,500 | 72,965 | -148,535 | 3,544,000 | 1,176,196 | 0.07% | -2,367,804 |
| PENUMBRA INC(PEN) | 128,500 | 120,500 | -8,000 | 32,976,955 | 30,525,060 | 1.78% | -2,451,895 |
| SOLENO THERAPEUTICS INC | 154,528 | 154,528 | 0 | 12,946,356 | 10,446,093 | 0.61% | -2,500,263 |
| MEREO BIOPHARMA GROUP PLC | 4,465,292 | 4,570,649 | +105,357 | 12,100,941 | 9,415,537 | 0.55% | -2,685,404 |
| PROTHENA CORP PLC | 492,601 | 25,398 | -467,203 | 2,990,088 | 247,884 | 0.01% | -2,742,204 |
| BOSTON SCIENTIFIC CORP(BSX) | 355,000 | 360,250 | +5,250 | 38,130,550 | 35,171,208 | 2.06% | -2,959,342 |
| EDWARDS LIFESCIENCES CORP | 131,000 | 88,000 | -43,000 | 10,245,510 | 6,843,760 | 0.40% | -3,401,750 |
| ZAI LAB LTD(ZLAB) | 871,392 | 791,193 | -80,199 | 30,472,578 | 26,813,531 | 1.57% | -3,659,047 |
| DEXCOM INC(DXCM) | 286,750 | 316,900 | +30,150 | 25,030,408 | 21,324,201 | 1.25% | -3,706,207 |
| AKERO THERAPEUTICS INC | 640,526 | 626,526 | -14,000 | 34,178,467 | 29,747,454 | 1.74% | -4,431,013 |
| CULLINAN THERAPEUTICS INC(CGEM) | 668,233 | 0 | -668,233 | 5,031,794 | 0 | — | -5,031,794 |
| INSPIRE MED SYS INC(INSP) | 107,500 | 110,500 | +3,000 | 13,950,275 | 8,199,100 | 0.48% | -5,751,175 |
| PHREESIA INC | 837,300 | 749,116 | -88,184 | 23,829,558 | 17,619,208 | 1.03% | -6,210,350 |
| EVOLENT HEALTH INC | 2,820,700 | 2,950,000 | +129,300 | 31,761,082 | 24,957,000 | 1.46% | -6,804,082 |
| NUVALENT INC(NUVL) | 93,328 | 0 | -93,328 | 7,120,926 | 0 | — | -7,120,926 |
| INTUITIVE SURGICAL INC | 82,000 | 82,000 | 0 | 44,559,620 | 36,672,860 | 2.14% | -7,886,760 |
| AGILON HEALTH INC(AGL) | 6,550,400 | 6,966,300 | +415,900 | 15,065,920 | 7,175,289 | 0.42% | -7,890,631 |
| WEST PHARMACEUTICAL SVSC INC(WST) | 51,030 | 9,750 | -41,280 | 11,165,364 | 2,557,718 | 0.15% | -8,607,646 |
| ELI LILLY & CO(LLY) | 116,500 | 105,400 | -11,100 | 90,815,245 | 80,420,200 | 4.70% | -10,395,045 |
| ACADIA HEALTHCARE COMPANY IN(ACHC) | 696,000 | 170,000 | -526,000 | 15,792,240 | 4,209,200 | 0.25% | -11,583,040 |
| ULTRAGENYX PHARMACEUTICAL IN(RARE) | 1,391,072 | 1,246,341 | -144,731 | 50,579,378 | 37,489,937 | 2.19% | -13,089,441 |