Universe · entity
Rock Springs Capital Management LP
Institutional manager (13F) · CIK 1595725
13F holdings · as of 2026-03-31 · top 50 · reported portfolio $1.5B
| # | Issuer | Value | Shares |
|---|---|---|---|
| 1 | REVOLUTION MEDICINES INC | $118M | 1,209,465 |
| 2 | ELI LILLY & CO | $91M | 98,700 |
| 3 | MADRIGAL PHARMACEUTICALS INC | $90M | 170,999 |
| 4 | MIRUM PHARMACEUTICALS INC | $75M | 811,294 |
| 5 | ARGENX SE | $72M | 98,500 |
| 6 | RHYTHM PHARMACEUTICALS INC | $60M | 689,748 |
| 7 | INSMED INC | $51M | 314,300 |
| 8 | ASCENDIS PHARMA A/S | $44M | 194,000 |
| 9 | XENON PHARMACEUTICALS INC | $44M | 763,020 |
| 10 | TRAVERE THERAPEUTICS INC | $44M | 1,477,954 |
| 11 | KYMERA THERAPEUTICS INC | $41M | 496,871 |
| 12 | PENUMBRA INC | $40M | 120,500 |
| 13 | INTUITIVE SURGICAL INC | $38M | 82,000 |
| 14 | SCHOLAR ROCK HLDG CORP | $36M | 739,816 |
| 15 | ENLIVEN THERAPEUTICS INC | $32M | 826,500 |
| 16 | BOSTON SCIENTIFIC CORP | $32M | 515,300 |
| 17 | IRHYTHM HOLDINGS INC | $31M | 261,750 |
| 18 | STRUCTURE THERAPEUTICS INC | $31M | 640,217 |
| 19 | AGIOS PHARMACEUTICALS INC | $27M | 799,163 |
| 20 | ULTRAGENYX PHARMACEUTICAL IN | $26M | 1,218,773 |
| 21 | ALNYLAM PHARMACEUTICALS INC | $24M | 74,000 |
| 22 | COGENT BIOSCIENCES INC | $24M | 624,155 |
| 23 | TENET HEALTHCARE CORP | $24M | 125,000 |
| 24 | DEXCOM INC | $22M | 355,600 |
| 25 | CELLDEX THERAPEUTICS INC NEW | $21M | 650,270 |
| 26 | VERA THERAPEUTICS INC | $20M | 503,585 |
| 27 | NEUROCRINE BIOSCIENCES INC | $20M | 150,450 |
| 28 | ARCELLX INC | $20M | 169,859 |
| 29 | NEWAMSTERDAM PHARMA COMPANY | $19M | 588,794 |
| 30 | PHARVARIS N V | $18M | 645,533 |
| 31 | ERASCA INC | $18M | 1,103,469 |
| 32 | DYNE THERAPEUTICS INC | $18M | 972,198 |
| 33 | COMPASS THERAPEUTICS INC | $17M | 3,305,308 |
| 34 | ACLARIS THERAPEUTICS INC | $17M | 4,472,650 |
| 35 | TARSUS PHARMACEUTICALS INC | $16M | 225,179 |
| 36 | MINIMED GROUP INC | $16M | 1,055,000 |
| 37 | ZAI LAB LTD | $15M | 814,707 |
| 38 | UNITEDHEALTH GROUP INC | $14M | 53,000 |
| 39 | CENTESSA PHARMACEUTICALS PLC | $14M | 351,828 |
| 40 | HEARTFLOW INC | $14M | 572,500 |
| 41 | ARDELYX INC | $14M | 2,299,473 |
| 42 | SUMMIT THERAPEUTICS INC | $13M | 710,000 |
| 43 | AZENTA INC | $12M | 569,100 |
| 44 | MINERALYS THERAPEUTICS INC | $12M | 439,751 |
| 45 | DANAHER CORP DEL | $12M | 61,500 |
| 46 | PTC THERAPEUTICS INC | $11M | 161,798 |
| 47 | CARIS LIFE SCIENCES INC | $10M | 563,000 |
| 48 | ZENAS BIOPHARMA INC | $10M | 502,077 |
| 49 | BICARA THERAPEUTICS INC | $10M | 489,095 |
| 50 | BRIDGEBIO PHARMA INC | $10M | 128,250 |
Source: sec_edgar_13f · public regulatory · retrieved 2026-06-29. Public SEC data; no contact information.