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Rock Springs Capital Management LP
Period ended Jun 30, 2026 · Latest filing Aug 14, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Jun 30, 2026: $2,048,808,191
More quarters will appear as history becomes available.
Top holdings
Top 10 at Jun 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- REVOLUTION MEDICINES INC · COM · 76155X100 · shares: $206,983,729
- TRAVERE THERAPEUTICS INC · COM · 89422G107 · shares: $123,792,910
- ELI LILLY & CO · COM · 532457108 · shares: $118,383,741
- MADRIGAL PHARMACEUTICALS INC · COM · 558868105 · shares: $93,965,713
- MIRUM PHARMACEUTICALS INC · COM · 604749101 · shares: $93,438,835
- RHYTHM PHARMACEUTICALS INC · COM · 76243J105 · shares: $76,899,156
- KYMERA THERAPEUTICS INC · COM · 501575104 · shares: $51,963,399
- ARGENX SE · SPONSORED ADR · 04016X101 · shares: $48,939,868
- ASCENDIS PHARMA A/S · ORD SHS · K08588103 · shares: $45,009,000
- XENON PHARMACEUTICALS INC · COM · 98420N105 · shares: $41,280,627
Reported holdings
104 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| GLAUKOS CORP | COM | 377322102 | — | 4,750 shares | $663,860 |
| JASPER THERAPEUTICS INC | COM NEW | 471871202 | — | 1,100,726 shares | $463,406 |
| BIOCRYST PHARMACEUTICALS INC | COM | 09058V103 | — | 22,124 shares | $221,240 |
| MOONLAKE IMMUNOTHERAPEUTICS | CLASS A ORD | 61559X104 | — | 10,696 shares | $208,251 |