Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q2 2025 (← Previous) (Next →)

Filing Date: Aug 14, 2025

Total Value ($000): $1,604,789 (99.7% shares, 0.3% debt)

Holdings (93)

ARGX ARGENX SE 6.0%
Value ($000) $96,877 Shares 175,750 Est. Cost $160.49 Unrealized
LLY ELI LILLY & CO 5.7%
Value ($000) $90,815 Shares 116,500 Est. Cost $683.47 Unrealized +13.2%
MERUS N V 3.5%
Value ($000) $55,946 Shares 1,063,608 Est. Cost $32.74 Unrealized
RYTM RHYTHM PHARMACEUTICALS INC 3.4%
Value ($000) $54,416 Shares 861,153 Est. Cost $17.22 Unrealized +255.6%
INSM INSMED INC 3.3%
Value ($000) $52,836 Shares 525,000 Est. Cost $39.44 Unrealized +93.9%
RARE ULTRAGENYX PHARMACEUTICAL IN 3.2%
Value ($000) $50,579 Shares 1,391,072 Est. Cost $58.22 Unrealized -38.1%
RVMD REVOLUTION MEDICINES INC 3.1%
Value ($000) $48,966 Shares 1,330,960 Est. Cost $31.87 Unrealized +20.5%
ISRG INTUITIVE SURGICAL INC 2.8%
Value ($000) $44,560 Shares 82,000 Est. Cost $264.69 Unrealized +97.5%
MDGL MADRIGAL PHARMACEUTICALS INC 2.6%
Value ($000) $42,459 Shares 140,296 Est. Cost $118.06 Unrealized +152.4%
MIRM MIRUM PHARMACEUTICALS INC 2.6%
Value ($000) $41,639 Shares 818,206 Est. Cost $14.67 Unrealized +203.6%
BSX BOSTON SCIENTIFIC CORP 2.4%
Value ($000) $38,131 Shares 355,000 Est. Cost $63.16 Unrealized +60.2%
ASND ASCENDIS PHARMA A/S 2.3%
Value ($000) $37,454 Shares 217,000 Est. Cost $92.14 Unrealized
IRTC IRHYTHM TECHNOLOGIES INC 2.3%
Value ($000) $37,335 Shares 242,500 Est. Cost $74.37 Unrealized +73.8%
AKERO THERAPEUTICS INC 2.1%
Value ($000) $34,178 Shares 640,526 Est. Cost $29.53 Unrealized
PEN PENUMBRA INC 2.1%
Value ($000) $32,977 Shares 128,500 Est. Cost $179.03 Unrealized +52.0%
AGIO AGIOS PHARMACEUTICALS INC 2.1%
Value ($000) $32,919 Shares 989,745 Est. Cost $33.80 Unrealized -10.3%
ALNY ALNYLAM PHARMACEUTICALS INC 2.0%
Value ($000) $32,609 Shares 100,000 Est. Cost $107.54 Unrealized +157.3%
EVH EVOLENT HEALTH INC 2.0%
Value ($000) $31,761 Shares 2,820,700 Est. Cost $20.99 Unrealized -56.3%
ZLAB ZAI LAB LTD 1.9%
Value ($000) $30,473 Shares 871,392 Est. Cost $51.35 Unrealized
EXAS EXACT SCIENCES CORP 1.9%
Value ($000) $30,396 Shares 572,000 Est. Cost $53.81 Unrealized -5.6%
XENE XENON PHARMACEUTICALS INC 1.8%
Value ($000) $29,162 Shares 931,681 Est. Cost $24.19 Unrealized +34.8%
TVTX TRAVERE THERAPEUTICS INC 1.8%
Value ($000) $28,241 Shares 1,908,208 Est. Cost $13.21 Unrealized +25.4%
SRRK SCHOLAR ROCK HLDG CORP 1.8%
Value ($000) $28,128 Shares 794,133 Est. Cost $32.85 Unrealized -4.4%
DXCM DEXCOM INC 1.6%
Value ($000) $25,030 Shares 286,750 Est. Cost $94.97 Unrealized -17.5%
PHR PHREESIA INC 1.5%
Value ($000) $23,830 Shares 837,300 Est. Cost $25.92 Unrealized -2.1%
BLUEPRINT MEDICINES CORP 1.5%
Value ($000) $23,777 Shares 185,500 Est. Cost $70.25 Unrealized
GPCR STRUCTURE THERAPEUTICS INC 1.5%
Value ($000) $23,558 Shares 1,135,879 Est. Cost $39.12 Unrealized
THC TENET HEALTHCARE CORP 1.4%
Value ($000) $22,880 Shares 130,000 Est. Cost $148.69 Unrealized +1.2%
CAI CARIS LIFE SCIENCES INC 1.3%
Value ($000) $21,206 Shares 793,651 Est. Cost $26.95 Unrealized 0.0%
KYMR KYMERA THERAPEUTICS INC 1.2%
Value ($000) $19,654 Shares 450,374 Est. Cost $30.84 Unrealized +11.7%
OMDA OMADA HEALTH INC 1.0%
Value ($000) $16,835 Shares 919,951 Est. Cost $17.31 Unrealized 0.0%
CLDX CELLDEX THERAPEUTICS INC NEW 1.0%
Value ($000) $16,537 Shares 812,653 Est. Cost $32.64 Unrealized -40.4%
AZTA AZENTA INC 1.0%
Value ($000) $16,326 Shares 530,400 Est. Cost $58.22 Unrealized -51.7%
ACHC ACADIA HEALTHCARE COMPANY IN 1.0%
Value ($000) $15,792 Shares 696,000 Est. Cost $53.71 Unrealized -55.9%
UNH UNITEDHEALTH GROUP INC 1.0%
Value ($000) $15,754 Shares 50,500 Est. Cost $279.63 Unrealized +34.1%
TARS TARSUS PHARMACEUTICALS INC 0.9%
Value ($000) $15,141 Shares 373,750 Est. Cost $48.01 Unrealized -6.3%
SMMT SUMMIT THERAPEUTICS INC 0.9%
Value ($000) $15,109 Shares 710,000 Est. Cost $14.06 Unrealized +62.2%
AGL AGILON HEALTH INC 0.9%
Value ($000) $15,066 Shares 6,550,400 Est. Cost $31.45 Unrealized -89.8%
OSCR OSCAR HEALTH INC 0.9%
Value ($000) $15,008 Shares 700,000 Est. Cost $11.50 Unrealized +29.2%
VERA VERA THERAPEUTICS INC 0.9%
Value ($000) $14,546 Shares 617,396 Est. Cost $35.12 Unrealized -36.0%
ELVN ENLIVEN THERAPEUTICS INC 0.9%
Value ($000) $14,070 Shares 701,408 Est. Cost $16.88 Unrealized +12.2%
INSP INSPIRE MED SYS INC 0.9%
Value ($000) $13,950 Shares 107,500 Est. Cost $196.68 Unrealized -26.3%
SLNO SOLENO THERAPEUTICS INC 0.8%
Value ($000) $12,946 Shares 154,528 Est. Cost $56.35 Unrealized +32.8%
CMPX COMPASS THERAPEUTICS INC 0.8%
Value ($000) $12,904 Shares 4,962,955 Est. Cost $3.23 Unrealized -36.1%
XBI SPDR SERIES TRUST 0.8%
Value ($000) $12,585 Shares 151,750 Est. Cost $82.93 Unrealized
ACLX ARCELLX INC 0.8%
Value ($000) $12,269 Shares 186,314 Est. Cost $62.26 Unrealized 0.0%
MREO MEREO BIOPHARMA GROUP PLC 0.8%
Value ($000) $12,101 Shares 4,465,292 Est. Cost $2.75 Unrealized
DHR DANAHER CORPORATION 0.7%
Value ($000) $11,655 Shares 59,000 Est. Cost $216.97 Unrealized -11.0%
FOLD AMICUS THERAPEUTICS INC 0.7%
Value ($000) $11,233 Shares 1,960,334 Est. Cost $10.81 Unrealized -40.3%
WST WEST PHARMACEUTICAL SVSC INC 0.7%
Value ($000) $11,165 Shares 51,030 Est. Cost $299.09 Unrealized -28.7%
NBIX NEUROCRINE BIOSCIENCES INC 0.7%
Value ($000) $11,161 Shares 88,800 Est. Cost $78.19 Unrealized +46.7%
PHVS PHARVARIS N V 0.7%
Value ($000) $10,972 Shares 623,402 Est. Cost $26.42 Unrealized -39.0%
EW EDWARDS LIFESCIENCES CORP 0.6%
Value ($000) $10,246 Shares 131,000 Est. Cost $63.05 Unrealized +18.3%
NAMS NEWAMSTERDAM PHARMA COMPANY 0.6%
Value ($000) $9,709 Shares 536,111 Est. Cost $19.43 Unrealized -6.1%
ARDX ARDELYX INC 0.6%
Value ($000) $8,962 Shares 2,286,273 Est. Cost $5.10 Unrealized -19.1%
NUVL NUVALENT INC 0.4%
Value ($000) $7,121 Shares 93,328 Est. Cost $78.38 Unrealized -6.6%
ACRS ACLARIS THERAPEUTICS INC 0.4%
Value ($000) $6,772 Shares 4,769,309 Est. Cost $6.19 Unrealized -78.2%
CIDARA THERAPEUTICS INC 0.4%
Value ($000) $6,534 Shares 134,133 Est. Cost $48.71 Unrealized
ZBIO ZENAS BIOPHARMA INC 0.4%
Value ($000) $6,206 Shares 640,467 Est. Cost $17.98 Unrealized -45.8%
REGN REGENERON PHARMACEUTICALS 0.4%
Value ($000) $5,933 Shares 11,300 Est. Cost $587.92 Unrealized -5.4%
COGT COGENT BIOSCIENCES INC 0.4%
Value ($000) $5,745 Shares 800,199 Est. Cost $5.54 Unrealized 0.0%
DYN DYNE THERAPEUTICS INC 0.3%
Value ($000) $5,531 Shares 580,998 Est. Cost $21.04 Unrealized -47.7%
CGEM CULLINAN THERAPEUTICS INC 0.3%
Value ($000) $5,032 Shares 668,233 Est. Cost $20.46 Unrealized -60.7%
GOSSAMER BIO INC 0.3%
Value ($000) $4,952 Shares 9,573,000 Est. Cost $1.01 Unrealized
JANX JANUX THERAPEUTICS INC 0.3%
Value ($000) $4,857 Shares 210,266 Est. Cost $52.16 Unrealized -49.5%
MLYS MINERALYS THERAPEUTICS INC 0.3%
Value ($000) $4,391 Shares 324,513 Est. Cost $11.54 Unrealized +25.6%
TMO THERMO FISHER SCIENTIFIC INC 0.3%
Value ($000) $4,055 Shares 10,000 Est. Cost $417.06 Unrealized 0.0%
GOSS GOSSAMER BIO INC 0.3%
Value ($000) $4,018 Shares 3,266,960 Est. Cost $2.62 Unrealized -58.3%
IMVT IMMUNOVANT INC 0.2%
Value ($000) $3,544 Shares 221,500 Est. Cost $28.27 Unrealized -46.5%
AMLX AMYLYX PHARMACEUTICALS INC 0.2%
Value ($000) $3,203 Shares 499,764 Est. Cost $3.97 Unrealized +22.6%
BCAX BICARA THERAPEUTICS INC 0.2%
Value ($000) $3,122 Shares 336,070 Est. Cost $25.50 Unrealized -53.3%
JSPR JASPER THERAPEUTICS INC 0.2%
Value ($000) $3,026 Shares 545,171 Est. Cost $16.31 Unrealized -69.8%
PRTA PROTHENA CORP PLC 0.2%
Value ($000) $2,990 Shares 492,601 Est. Cost $17.57 Unrealized -57.3%
ATEC ALPHATEC HLDGS INC 0.2%
Value ($000) $2,969 Shares 267,500 Est. Cost $8.68 Unrealized +32.4%
LENZ LENZ THERAPEUTICS INC 0.2%
Value ($000) $2,462 Shares 83,982 Est. Cost $26.70 Unrealized +1.9%
EDAP EDAP TMS S A 0.1%
Value ($000) $2,096 Shares 1,270,000 Est. Cost $7.23 Unrealized
CGEN COMPUGEN LTD 0.1%
Value ($000) $1,762 Shares 989,990 Est. Cost $6.12 Unrealized -75.8%
SION SIONNA THERAPEUTICS INC 0.1%
Value ($000) $1,725 Shares 99,429 Est. Cost $16.34 Unrealized -19.8%
LUNG PULMONX CORP 0.1%
Value ($000) $1,686 Shares 651,100 Est. Cost $31.32 Unrealized -87.4%
NGNE NEUROGENE INC 0.1%
Value ($000) $1,560 Shares 104,339 Est. Cost $35.51 Unrealized -55.8%
CATX PERSPECTIVE THERAPEUTICS INC 0.1%
Value ($000) $1,529 Shares 444,383 Est. Cost $14.00 Unrealized -81.1%
APLS APELLIS PHARMACEUTICALS INC 0.1%
Value ($000) $1,459 Shares 84,300 Est. Cost $43.92 Unrealized -57.9%
SRPT SAREPTA THERAPEUTICS INC 0.1%
Value ($000) $1,173 Shares 68,600 Est. Cost $68.51 Unrealized -37.7%
MERSANA THERAPEUTICS INC 0.1%
Value ($000) $1,129 Shares 3,814,684 Est. Cost $10.59 Unrealized
APPLIED THERAPEUTICS INC 0.0%
Value ($000) $646 Shares 2,075,991 Est. Cost $12.37 Unrealized
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.0%
Value ($000) $595 Shares 2,483,468 Est. Cost $6.95 Unrealized
KRRO KORRO BIO INC 0.0%
Value ($000) $446 Shares 35,719 Est. Cost $55.25 Unrealized -73.9%
CRL CHARLES RIV LABS INTL INC 0.0%
Value ($000) $410 Shares 2,700 Est. Cost $133.35 Unrealized 0.0%
89BIO INC 0.0%
Value ($000) $393 Shares 40,000 Est. Cost $7.63 Unrealized
PCVX VAXCYTE INC 0.0%
Value ($000) $361 Shares 11,100 Est. Cost $32.78 Unrealized 0.0%
NVAX NOVAVAX INC 0.0%
Value ($000) $340 Shares 53,900 Est. Cost $31.79 Unrealized -79.2%
TLPH TALPHERA INC 0.0%
Value ($000) $146 Shares 316,460 Est. Cost $2.81 Unrealized -82.3%
NUVATION BIO INC 0.0%
Value ($000) $36 Shares 134,028 Est. Cost $2.67 Unrealized